v1.16.0-rc1 changelog

Merge pull request #8851 from filecoin-project/jen/v1160
build: release: v1.16.0-rc1
2022-06-14 01:57:42 -04:00 · 2022-06-13 23:59:28 -04:00 · 2022-06-13 23:31:35 -04:00 · 2022-06-13 23:31:12 -04:00 · 2022-06-13 23:27:31 -04:00 · 2022-06-13 23:25:10 -04:00
624 changed files with 30570 additions and 8237 deletions
@@ -1,23 +1,32 @@
 version: 2.1
 orbs:
-  go: gotest/tools@0.0.13
  aws-cli: circleci/aws-cli@1.3.2
-  packer: salaxander/packer@0.0.3

 executors:
  golang:
    docker:
-      - image: circleci/golang:1.16.4
+      - image: cimg/go:1.17.9
    resource_class: 2xlarge
  ubuntu:
    docker:
      - image: ubuntu:20.04
+  packer:
+    description: |
+      The HashiCorp provided Packer container
+    parameters:
+      packer-version:
+        type: string
+        default: "1.8"
+    docker:
+      - image: hashicorp/packer:<< parameters.packer-version >>
+

 commands:
  install-deps:
    steps:
-      - go/install-ssh
-      - go/install: {package: git}
+      - run: |
+          sudo apt update
+          sudo apt install python-is-python3
  prepare:
    parameters:
      linux:
@@ -44,13 +53,13 @@ commands:
      - restore_cache:
          name: Restore parameters cache
          keys:
-            - 'v25-2k-lotus-params'
+            - 'v26-2k-lotus-params'
          paths:
            - /var/tmp/filecoin-proof-parameters/
      - run:  ./lotus fetch-params 2048
      - save_cache:
          name: Save parameters cache
-          key: 'v25-2k-lotus-params'
+          key: 'v26-2k-lotus-params'
          paths:
            - /var/tmp/filecoin-proof-parameters/
  install_ipfs:
@@ -58,14 +67,14 @@ commands:
      - run: |
          apt update
          apt install -y wget
-          wget https://github.com/ipfs/go-ipfs/releases/download/v0.4.22/go-ipfs_v0.4.22_linux-amd64.tar.gz
-          wget https://github.com/ipfs/go-ipfs/releases/download/v0.4.22/go-ipfs_v0.4.22_linux-amd64.tar.gz.sha512
-          if [ "$(sha512sum go-ipfs_v0.4.22_linux-amd64.tar.gz)" != "$(cat go-ipfs_v0.4.22_linux-amd64.tar.gz.sha512)" ]
+          wget https://github.com/ipfs/go-ipfs/releases/download/v0.12.2/go-ipfs_v0.12.2_linux-amd64.tar.gz
+          wget https://github.com/ipfs/go-ipfs/releases/download/v0.12.2/go-ipfs_v0.12.2_linux-amd64.tar.gz.sha512
+          if [ "$(sha512sum go-ipfs_v0.12.2_linux-amd64.tar.gz)" != "$(cat go-ipfs_v0.12.2_linux-amd64.tar.gz.sha512)" ]
          then
            echo "ipfs failed checksum check"
            exit 1
          fi
-          tar -xf go-ipfs_v0.4.22_linux-amd64.tar.gz
+          tar -xf go-ipfs_v0.12.2_linux-amd64.tar.gz
          mv go-ipfs/ipfs /usr/local/bin/ipfs
          chmod +x /usr/local/bin/ipfs
  git_fetch_all_tags:
@@ -74,6 +83,25 @@ commands:
          name: fetch all tags
          command: |
            git fetch --all
+  packer_build:
+    description: "Run a packer build"
+    parameters:
+      template:
+        description: |
+          The name of the packer template file
+        type: string
+        default: packer.json
+      args:
+        description: |
+          Arguments to pass to the packer build command
+        type: string
+        default: ""
+
+    steps:
+      - run:
+          name: "Run a packer build"
+          command: packer build << parameters.args >> << parameters.template >>
+          no_output_timeout: 30m

 jobs:
  mod-tidy-check:
@@ -81,8 +109,12 @@ jobs:
    steps:
      - install-deps
      - prepare
-      - go/mod-tidy-check
-
+      - run: go mod tidy -v
+      - run:
+          name: Check git diff
+          command: |
+            git --no-pager diff go.mod go.sum
+            git --no-pager diff --quiet go.mod go.sum
  build-all:
    executor: golang
    steps:
@@ -159,14 +191,12 @@ jobs:
          command: make deps lotus
          no_output_timeout: 30m
      - download-params
-      - go/install-gotestsum:
-          gobin: $HOME/.local/bin
-          version: 0.5.2
      - run:
          name: go test
          environment:
            TEST_RUSTPROOFS_LOGS: << parameters.proofs-log-test >>
            SKIP_CONFORMANCE: "1"
+            LOTUS_SRC_DIR: /home/circleci/project
          command: |
            mkdir -p /tmp/test-reports/<< parameters.suite >>
            mkdir -p /tmp/test-artifacts
@@ -186,8 +216,6 @@ jobs:
      - when:
          condition: << parameters.codecov-upload >>
          steps:
-            - go/install: {package: bash}
-            - go/install: {package: curl}
            - run:
                shell: /bin/bash -eo pipefail
                command: |
@@ -195,7 +223,7 @@ jobs:

  test-conformance:
    description: |
-      Run tests using a corpus of interoperable test vectors for Filecoin 
+      Run tests using a corpus of interoperable test vectors for Filecoin
      implementations to test their correctness and compliance with the Filecoin
      specifications.
    parameters:
@@ -226,9 +254,6 @@ jobs:
                  cd extern/test-vectors
                  git fetch
                  git checkout origin/<< parameters.vectors-branch >>
-      - go/install-gotestsum:
-          gobin: $HOME/.local/bin
-          version: 0.5.2
      - run:
          name: install statediff globally
          command: |
@@ -341,8 +366,8 @@ jobs:
      - run:
          name: Install go
          command: |
-            curl -O https://dl.google.com/go/go1.16.4.darwin-amd64.pkg && \
-            sudo installer -pkg go1.16.4.darwin-amd64.pkg -target /
+            curl -O https://dl.google.com/go/go1.17.9.darwin-amd64.pkg && \
+            sudo installer -pkg go1.17.9.darwin-amd64.pkg -target /
      - run:
          name: Install pkg-config
          command: HOMEBREW_NO_AUTO_UPDATE=1 brew install pkg-config
@@ -363,7 +388,6 @@ jobs:
      - restore_cache:
          name: restore cargo cache
          key: v3-go-deps-{{ arch }}-{{ checksum "~/go/src/github.com/filecoin-project/lotus/go.sum" }}
-      - install-deps
      - run:
          command: make build
          no_output_timeout: 30m
@@ -390,7 +414,7 @@ jobs:

  build-appimage:
    machine:
-      image: ubuntu-2004:202104-01
+      image: ubuntu-2004:202111-02
    steps:
      - checkout
      - attach_workspace:
@@ -398,6 +422,16 @@ jobs:
      - run:
          name: install appimage-builder
          command: |
+            # appimage-builder requires /dev/snd to exist. It creates containers during the testing phase
+            # that pass sound devices from the host to the testing container. (hard coded!)
+            # https://github.com/AppImageCrafters/appimage-builder/blob/master/appimagebuilder/modules/test/execution_test.py#L54
+            # Circleci doesn't provide a working sound device; this is enough to fake it.
+            if [ ! -e /dev/snd ]
+            then
+              sudo mkdir /dev/snd
+              sudo mknod /dev/snd/ControlC0 c 1 2
+            fi
+
            # docs: https://appimage-builder.readthedocs.io/en/latest/intro/install.html
            sudo apt update
            sudo apt install -y python3-pip python3-setuptools patchelf desktop-file-utils libgdk-pixbuf2.0-dev fakeroot strace
@@ -473,9 +507,6 @@ jobs:
      executor:
        type: executor
        default: golang
-      golangci-lint-version:
-        type: string
-        default: 1.27.0
      concurrency:
        type: string
        default: '2'
@@ -494,13 +525,10 @@ jobs:
      - run:
          command: make deps
          no_output_timeout: 30m
-      - go/install-golangci-lint:
-          gobin: $HOME/.local/bin
-          version: << parameters.golangci-lint-version >>
      - run:
          name: Lint
          command: |
-            $HOME/.local/bin/golangci-lint run -v --timeout 2m \
+            golangci-lint run -v --timeout 2m \
              --concurrency << parameters.concurrency >> << parameters.args >>
  lint-all:
    <<: *lint
@@ -618,6 +646,11 @@ jobs:
        default: "latest"
        description: A comma-separated string containing docker image tags to build and push (default = latest)

+      target:
+        type: string
+        default: "lotus-all-in-one"
+        description: Docker target to build
+
    steps:
      - run:
          name: Confirm that environment variables are set
@@ -657,6 +690,7 @@ jobs:

            docker build \
              <<#parameters.extra-build-args>><<parameters.extra-build-args>><</parameters.extra-build-args>> \
+              --target <<parameters.target>> \
              -f <<parameters.path>>/<<parameters.dockerfile>> \
              $docker_tag_args \
              <<parameters.path>>
@@ -669,42 +703,16 @@ jobs:
              docker push $<<parameters.account-url>>/<<parameters.repo>>:${tag}
            done

-  publish-packer-mainnet:
-    description: build and push AWS IAM and DigitalOcean droplet.
+  publish-packer-snap:
+    description: build packer image with snap. mainnet only.
    executor:
-      name: packer/default
-      packer-version: 1.6.6
+      name: packer
    steps:
      - checkout
      - attach_workspace:
          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux -var lotus_network=mainnet -var git_tag=$CIRCLE_TAG"
-  publish-packer-calibrationnet:
-    description: build and push AWS IAM and DigitalOcean droplet.
-    executor:
-      name: packer/default
-      packer-version: 1.6.6
-    steps:
-      - checkout
-      - attach_workspace:
-          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux-calibrationnet -var lotus_network=calibrationnet -var git_tag=$CIRCLE_TAG"
-  publish-packer-butterflynet:
-    description: build and push AWS IAM and DigitalOcean droplet.
-    executor:
-      name: packer/default
-      packer-version: 1.6.6
-    steps:
-      - checkout
-      - attach_workspace:
-          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux-butterflynet -var lotus_network=butterflynet -var git_tag=$CIRCLE_TAG"
+      - packer_build:
+          template: tools/packer/lotus-snap.pkr.hcl
  publish-dockerhub:
    description: publish to dockerhub
    machine:
@@ -795,6 +803,11 @@ workflows:
          suite: itest-deals_concurrent
          target: "./itests/deals_concurrent_test.go"
      
+      - test:
+          name: test-itest-deals_invalid_utf8_label
+          suite: itest-deals_invalid_utf8_label
+          target: "./itests/deals_invalid_utf8_label_test.go"
+      
      - test:
          name: test-itest-deals_max_staging_deals
          suite: itest-deals_max_staging_deals
@@ -855,6 +868,21 @@ workflows:
          suite: itest-get_messages_in_ts
          target: "./itests/get_messages_in_ts_test.go"
      
+      - test:
+          name: test-itest-lite_migration
+          suite: itest-lite_migration
+          target: "./itests/lite_migration_test.go"
+      
+      - test:
+          name: test-itest-lookup_robust_address
+          suite: itest-lookup_robust_address
+          target: "./itests/lookup_robust_address_test.go"
+      
+      - test:
+          name: test-itest-mempool
+          suite: itest-mempool
+          target: "./itests/mempool_test.go"
+      
      - test:
          name: test-itest-multisig
          suite: itest-multisig
@@ -885,6 +913,11 @@ workflows:
          suite: itest-sector_finalize_early
          target: "./itests/sector_finalize_early_test.go"
      
+      - test:
+          name: test-itest-sector_make_cc_avail
+          suite: itest-sector_make_cc_avail
+          target: "./itests/sector_make_cc_avail_test.go"
+      
      - test:
          name: test-itest-sector_miner_collateral
          suite: itest-sector_miner_collateral
@@ -895,6 +928,16 @@ workflows:
          suite: itest-sector_pledge
          target: "./itests/sector_pledge_test.go"
      
+      - test:
+          name: test-itest-sector_prefer_no_upgrade
+          suite: itest-sector_prefer_no_upgrade
+          target: "./itests/sector_prefer_no_upgrade_test.go"
+      
+      - test:
+          name: test-itest-sector_revert_available
+          suite: itest-sector_revert_available
+          target: "./itests/sector_revert_available_test.go"
+      
      - test:
          name: test-itest-sector_terminate
          suite: itest-sector_terminate
@@ -925,6 +968,11 @@ workflows:
          suite: itest-wdpost
          target: "./itests/wdpost_test.go"
      
+      - test:
+          name: test-itest-worker
+          suite: itest-worker
+          target: "./itests/worker_test.go"
+      
      - test:
          name: test-unit-cli
          suite: utest-unit-cli
@@ -979,6 +1027,11 @@ workflows:
                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
      - build-lotus-soup
      - build-macos:
+          filters:
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-appimage:
          filters:
            branches:
              ignore:
@@ -990,6 +1043,7 @@ workflows:
          requires:
            - build-all
            - build-macos
+            - build-appimage
          filters:
            branches:
              ignore:
@@ -1002,36 +1056,13 @@ workflows:
          path: .
          repo: lotus-dev
          tag: '${CIRCLE_SHA1:0:8}'
-      - publish-packer-mainnet:
-          requires:
-            - build-all
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
-      - publish-packer-calibrationnet:
-          requires:
-            - build-ntwk-calibration
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
-      - publish-packer-butterflynet:
-          requires:
-            - build-ntwk-butterfly
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+          target: lotus-all-in-one
+      - build-and-push-image:
+          dockerfile: Dockerfile.lotus
+          path: .
+          repo: lotus-test
+          tag: '${CIRCLE_SHA1:0:8}'
+          target: lotus-test
      - publish-snapcraft:
          name: publish-snapcraft-stable
          channel: stable
@@ -1068,3 +1099,13 @@ workflows:
      - publish-dockerhub:
          name: publish-dockerhub-nightly
          tag: nightly
+  monthly:
+    triggers:
+      - schedule:
+          cron: "0 0 1 * *"
+          filters:
+            branches:
+              only:
+                - master
+    jobs:
+      - publish-packer-snap
@@ -1,23 +1,32 @@
 version: 2.1
 orbs:
-  go: gotest/tools@0.0.13
  aws-cli: circleci/aws-cli@1.3.2
-  packer: salaxander/packer@0.0.3

 executors:
  golang:
    docker:
-      - image: circleci/golang:1.16.4
+      - image: cimg/go:1.17.9
    resource_class: 2xlarge
  ubuntu:
    docker:
      - image: ubuntu:20.04
+  packer:
+    description: |
+      The HashiCorp provided Packer container
+    parameters:
+      packer-version:
+        type: string
+        default: "1.8"
+    docker:
+      - image: hashicorp/packer:<< parameters.packer-version >>
+

 commands:
  install-deps:
    steps:
-      - go/install-ssh
-      - go/install: {package: git}
+      - run: |
+          sudo apt update
+          sudo apt install python-is-python3
  prepare:
    parameters:
      linux:
@@ -44,13 +53,13 @@ commands:
      - restore_cache:
          name: Restore parameters cache
          keys:
-            - 'v25-2k-lotus-params'
+            - 'v26-2k-lotus-params'
          paths:
            - /var/tmp/filecoin-proof-parameters/
      - run:  ./lotus fetch-params 2048
      - save_cache:
          name: Save parameters cache
-          key: 'v25-2k-lotus-params'
+          key: 'v26-2k-lotus-params'
          paths:
            - /var/tmp/filecoin-proof-parameters/
  install_ipfs:
@@ -58,14 +67,14 @@ commands:
      - run: |
          apt update
          apt install -y wget
-          wget https://github.com/ipfs/go-ipfs/releases/download/v0.4.22/go-ipfs_v0.4.22_linux-amd64.tar.gz
-          wget https://github.com/ipfs/go-ipfs/releases/download/v0.4.22/go-ipfs_v0.4.22_linux-amd64.tar.gz.sha512
-          if [ "$(sha512sum go-ipfs_v0.4.22_linux-amd64.tar.gz)" != "$(cat go-ipfs_v0.4.22_linux-amd64.tar.gz.sha512)" ]
+          wget https://github.com/ipfs/go-ipfs/releases/download/v0.12.2/go-ipfs_v0.12.2_linux-amd64.tar.gz
+          wget https://github.com/ipfs/go-ipfs/releases/download/v0.12.2/go-ipfs_v0.12.2_linux-amd64.tar.gz.sha512
+          if [ "$(sha512sum go-ipfs_v0.12.2_linux-amd64.tar.gz)" != "$(cat go-ipfs_v0.12.2_linux-amd64.tar.gz.sha512)" ]
          then
            echo "ipfs failed checksum check"
            exit 1
          fi
-          tar -xf go-ipfs_v0.4.22_linux-amd64.tar.gz
+          tar -xf go-ipfs_v0.12.2_linux-amd64.tar.gz
          mv go-ipfs/ipfs /usr/local/bin/ipfs
          chmod +x /usr/local/bin/ipfs
  git_fetch_all_tags:
@@ -74,6 +83,25 @@ commands:
          name: fetch all tags
          command: |
            git fetch --all
+  packer_build:
+    description: "Run a packer build"
+    parameters:
+      template:
+        description: |
+          The name of the packer template file
+        type: string
+        default: packer.json
+      args:
+        description: |
+          Arguments to pass to the packer build command
+        type: string
+        default: ""
+
+    steps:
+      - run:
+          name: "Run a packer build"
+          command: packer build << parameters.args >> << parameters.template >>
+          no_output_timeout: 30m

 jobs:
  mod-tidy-check:
@@ -81,8 +109,12 @@ jobs:
    steps:
      - install-deps
      - prepare
-      - go/mod-tidy-check
-
+      - run: go mod tidy -v
+      - run:
+          name: Check git diff
+          command: |
+            git --no-pager diff go.mod go.sum
+            git --no-pager diff --quiet go.mod go.sum
  build-all:
    executor: golang
    steps:
@@ -159,14 +191,12 @@ jobs:
          command: make deps lotus
          no_output_timeout: 30m
      - download-params
-      - go/install-gotestsum:
-          gobin: $HOME/.local/bin
-          version: 0.5.2
      - run:
          name: go test
          environment:
            TEST_RUSTPROOFS_LOGS: << parameters.proofs-log-test >>
            SKIP_CONFORMANCE: "1"
+            LOTUS_SRC_DIR: /home/circleci/project
          command: |
            mkdir -p /tmp/test-reports/<< parameters.suite >>
            mkdir -p /tmp/test-artifacts
@@ -186,8 +216,6 @@ jobs:
      - when:
          condition: << parameters.codecov-upload >>
          steps:
-            - go/install: {package: bash}
-            - go/install: {package: curl}
            - run:
                shell: /bin/bash -eo pipefail
                command: |
@@ -195,7 +223,7 @@ jobs:

  test-conformance:
    description: |
-      Run tests using a corpus of interoperable test vectors for Filecoin 
+      Run tests using a corpus of interoperable test vectors for Filecoin
      implementations to test their correctness and compliance with the Filecoin
      specifications.
    parameters:
@@ -226,9 +254,6 @@ jobs:
                  cd extern/test-vectors
                  git fetch
                  git checkout origin/<< parameters.vectors-branch >>
-      - go/install-gotestsum:
-          gobin: $HOME/.local/bin
-          version: 0.5.2
      - run:
          name: install statediff globally
          command: |
@@ -341,8 +366,8 @@ jobs:
      - run:
          name: Install go
          command: |
-            curl -O https://dl.google.com/go/go1.16.4.darwin-amd64.pkg && \
-            sudo installer -pkg go1.16.4.darwin-amd64.pkg -target /
+            curl -O https://dl.google.com/go/go1.17.9.darwin-amd64.pkg && \
+            sudo installer -pkg go1.17.9.darwin-amd64.pkg -target /
      - run:
          name: Install pkg-config
          command: HOMEBREW_NO_AUTO_UPDATE=1 brew install pkg-config
@@ -363,7 +388,6 @@ jobs:
      - restore_cache:
          name: restore cargo cache
          key: v3-go-deps-{{ arch }}-{{ checksum "~/go/src/github.com/filecoin-project/lotus/go.sum" }}
-      - install-deps
      - run:
          command: make build
          no_output_timeout: 30m
@@ -390,7 +414,7 @@ jobs:

  build-appimage:
    machine:
-      image: ubuntu-2004:202104-01
+      image: ubuntu-2004:202111-02
    steps:
      - checkout
      - attach_workspace:
@@ -398,6 +422,16 @@ jobs:
      - run:
          name: install appimage-builder
          command: |
+            # appimage-builder requires /dev/snd to exist. It creates containers during the testing phase
+            # that pass sound devices from the host to the testing container. (hard coded!)
+            # https://github.com/AppImageCrafters/appimage-builder/blob/master/appimagebuilder/modules/test/execution_test.py#L54
+            # Circleci doesn't provide a working sound device; this is enough to fake it.
+            if [ ! -e /dev/snd ]
+            then
+              sudo mkdir /dev/snd
+              sudo mknod /dev/snd/ControlC0 c 1 2
+            fi
+
            # docs: https://appimage-builder.readthedocs.io/en/latest/intro/install.html
            sudo apt update
            sudo apt install -y python3-pip python3-setuptools patchelf desktop-file-utils libgdk-pixbuf2.0-dev fakeroot strace
@@ -473,9 +507,6 @@ jobs:
      executor:
        type: executor
        default: golang
-      golangci-lint-version:
-        type: string
-        default: 1.27.0
      concurrency:
        type: string
        default: '2'
@@ -494,13 +525,10 @@ jobs:
      - run:
          command: make deps
          no_output_timeout: 30m
-      - go/install-golangci-lint:
-          gobin: $HOME/.local/bin
-          version: << parameters.golangci-lint-version >>
      - run:
          name: Lint
          command: |
-            $HOME/.local/bin/golangci-lint run -v --timeout 2m \
+            golangci-lint run -v --timeout 2m \
              --concurrency << parameters.concurrency >> << parameters.args >>
  lint-all:
    <<: *lint
@@ -618,6 +646,11 @@ jobs:
        default: "latest"
        description: A comma-separated string containing docker image tags to build and push (default = latest)

+      target:
+        type: string
+        default: "lotus-all-in-one"
+        description: Docker target to build
+
    steps:
      - run:
          name: Confirm that environment variables are set
@@ -657,6 +690,7 @@ jobs:

            docker build \
              <<#parameters.extra-build-args>><<parameters.extra-build-args>><</parameters.extra-build-args>> \
+              --target <<parameters.target>> \
              -f <<parameters.path>>/<<parameters.dockerfile>> \
              $docker_tag_args \
              <<parameters.path>>
@@ -669,42 +703,16 @@ jobs:
              docker push $<<parameters.account-url>>/<<parameters.repo>>:${tag}
            done

-  publish-packer-mainnet:
-    description: build and push AWS IAM and DigitalOcean droplet.
+  publish-packer-snap:
+    description: build packer image with snap. mainnet only.
    executor:
-      name: packer/default
-      packer-version: 1.6.6
+      name: packer
    steps:
      - checkout
      - attach_workspace:
          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux -var lotus_network=mainnet -var git_tag=$CIRCLE_TAG"
-  publish-packer-calibrationnet:
-    description: build and push AWS IAM and DigitalOcean droplet.
-    executor:
-      name: packer/default
-      packer-version: 1.6.6
-    steps:
-      - checkout
-      - attach_workspace:
-          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux-calibrationnet -var lotus_network=calibrationnet -var git_tag=$CIRCLE_TAG"
-  publish-packer-butterflynet:
-    description: build and push AWS IAM and DigitalOcean droplet.
-    executor:
-      name: packer/default
-      packer-version: 1.6.6
-    steps:
-      - checkout
-      - attach_workspace:
-          at: "."
-      - packer/build:
-          template: tools/packer/lotus.pkr.hcl
-          args: "-var ci_workspace_bins=./linux-butterflynet -var lotus_network=butterflynet -var git_tag=$CIRCLE_TAG"
+      - packer_build:
+          template: tools/packer/lotus-snap.pkr.hcl
  publish-dockerhub:
    description: publish to dockerhub
    machine:
@@ -809,6 +817,11 @@ workflows:
                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
      - build-lotus-soup
      - build-macos:
+          filters:
+            tags:
+              only:
+                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+      - build-appimage:
          filters:
            branches:
              ignore:
@@ -820,6 +833,7 @@ workflows:
          requires:
            - build-all
            - build-macos
+            - build-appimage
          filters:
            branches:
              ignore:
@@ -832,36 +846,13 @@ workflows:
          path: .
          repo: lotus-dev
          tag: '${CIRCLE_SHA1:0:8}'
-      - publish-packer-mainnet:
-          requires:
-            - build-all
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
-      - publish-packer-calibrationnet:
-          requires:
-            - build-ntwk-calibration
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
-      - publish-packer-butterflynet:
-          requires:
-            - build-ntwk-butterfly
-          filters:
-            branches:
-              ignore:
-                - /.*/
-            tags:
-              only:
-                - /^v\d+\.\d+\.\d+(-rc\d+)?$/
+          target: lotus-all-in-one
+      - build-and-push-image:
+          dockerfile: Dockerfile.lotus
+          path: .
+          repo: lotus-test
+          tag: '${CIRCLE_SHA1:0:8}'
+          target: lotus-test
      - publish-snapcraft:
          name: publish-snapcraft-stable
          channel: stable
@@ -898,3 +889,13 @@ workflows:
      - publish-dockerhub:
          name: publish-dockerhub-nightly
          tag: nightly
+  monthly:
+    triggers:
+      - schedule:
+          cron: "0 0 1 * *"
+          filters:
+            branches:
+              only:
+                - master
+    jobs:
+      - publish-packer-snap
@@ -17,6 +17,7 @@ coverage:
  status:
    patch: off
    project:
+      threshold: 1%
      tools-and-tests:
        target: auto
        threshold: 1%
@@ -34,27 +35,27 @@ coverage:
      markets: 
        target: auto
        threshold: 1%
-        informational: false        
+        informational: true        
        paths: 
          - "markets"
          - "paychmgr"
      miner: 
        target: auto
        threshold: 1.5%
-        informational: false       
+        informational: true
        paths: 
          - "miner"
          - "storage"
      chain:
        target: auto
        threshold: 1%
-        informational: false
+        informational: true
        paths:
          - "chain"
      node:
        target: auto
        threshold: 1%
-        informational: false
+        informational: true
        paths: 
          - "node"
          - "blockstore"
@@ -37,7 +37,7 @@ jobs:

    - uses: actions/setup-go@v1
      with:
-        go-version: '1.16.4'
+        go-version: '1.17.9'

    # Initializes the CodeQL tools for scanning.
    - name: Initialize CodeQL
@@ -40,6 +40,7 @@ build/paramfetch.sh
 /bundle
 /darwin
 /linux
+*.snap

 *-fuzz.zip
 /chain/types/work_msg/
@@ -47,3 +48,6 @@ bin/ipget
 bin/tmp/*
 .idea
 scratchpad
+
+build/builtin-actors/v*
+build/builtin-actors/*.car
@@ -25,7 +25,7 @@ skip-dirs:

 issues:
  exclude:
-    - "func name will be used as test\\.Test.* by other packages, and that stutters; consider calling this"
+    - "by other packages, and that stutters; consider calling this"
    - "Potential file inclusion via variable"
    - "should have( a package)? comment"
    - "Error return value of `logging.SetLogLevel` is not checked"
@@ -37,6 +37,9 @@ issues:
    - "string .* has .* occurrences, make it a constant"
    - "a blank import should be only in a main or test package, or have a comment justifying it"
    - "package comment should be of the form"
+    - "Potential hardcoded credentials"
+    - "Use of weak random number generator"
+    - "xerrors.* is deprecated"

  exclude-use-default: false
  exclude-rules:
@@ -51,7 +54,7 @@ issues:
    - path: build/params_.*\.go
      linters:
        - golint
-          
+
    - path: api/apistruct/struct.go
      linters:
        - golint
@@ -49,23 +49,23 @@ AppDir:
    fedora:
      image: appimagecrafters/tests-env:fedora-30
      command: ./AppRun
-      use_host_x: true
+      use_host_x: false
    debian:
      image: appimagecrafters/tests-env:debian-stable
      command: ./AppRun
-      use_host_x: true
+      use_host_x: false
    arch:
      image: appimagecrafters/tests-env:archlinux-latest
      command: ./AppRun
-      use_host_x: true
+      use_host_x: false
    centos:
      image: appimagecrafters/tests-env:centos-7
      command: ./AppRun
-      use_host_x: true
+      use_host_x: false
    ubuntu:
      image: appimagecrafters/tests-env:ubuntu-xenial
      command: ./AppRun
-      use_host_x: true
+      use_host_x: false
 AppImage:
  arch: x86_64
  update-information: guess
@@ -1,4 +1,4 @@
-FROM golang:1.16.4 AS builder-deps
+FROM golang:1.17.9-buster AS builder-deps
 MAINTAINER Lotus Development Team

 RUN apt-get update && apt-get install -y ca-certificates build-essential clang ocl-icd-opencl-dev ocl-icd-libopencl1 jq libhwloc-dev
@@ -28,6 +28,14 @@ WORKDIR /opt/filecoin
 RUN make clean deps


+FROM builder-local AS builder-test
+MAINTAINER Lotus Development Team
+
+WORKDIR /opt/filecoin
+
+RUN make debug
+
+
 FROM builder-local AS builder
 MAINTAINER Lotus Development Team

@@ -53,8 +61,9 @@ COPY --from=builder /usr/lib/x86_64-linux-gnu/libnuma.so.1   /lib/
 COPY --from=builder /usr/lib/x86_64-linux-gnu/libhwloc.so.5  /lib/
 COPY --from=builder /usr/lib/x86_64-linux-gnu/libOpenCL.so.1 /lib/

-RUN useradd -r -u 532 -U fc
-
+RUN useradd -r -u 532 -U fc \
+ && mkdir -p /etc/OpenCL/vendors \
+ && echo "libnvidia-opencl.so.1" > /etc/OpenCL/vendors/nvidia.icd

 ###
 FROM base AS lotus
@@ -207,3 +216,41 @@ EXPOSE 1234
 EXPOSE 2345
 EXPOSE 3456
 EXPOSE 1777
+
+###
+from base as lotus-test
+
+ENV FILECOIN_PARAMETER_CACHE /var/tmp/filecoin-proof-parameters
+ENV LOTUS_MINER_PATH /var/lib/lotus-miner
+ENV LOTUS_PATH /var/lib/lotus
+ENV LOTUS_WORKER_PATH /var/lib/lotus-worker
+ENV WALLET_PATH /var/lib/lotus-wallet
+
+COPY --from=builder-test /opt/filecoin/lotus      /usr/local/bin/
+COPY --from=builder-test /opt/filecoin/lotus-miner /usr/local/bin/
+COPY --from=builder-test /opt/filecoin/lotus-worker /usr/local/bin/
+COPY --from=builder-test /opt/filecoin/lotus-seed /usr/local/bin/
+
+RUN mkdir /var/tmp/filecoin-proof-parameters
+RUN mkdir /var/lib/lotus
+RUN mkdir /var/lib/lotus-miner
+RUN mkdir /var/lib/lotus-worker
+RUN mkdir /var/lib/lotus-wallet
+RUN chown fc: /var/tmp/filecoin-proof-parameters
+RUN chown fc: /var/lib/lotus
+RUN chown fc: /var/lib/lotus-miner
+RUN chown fc: /var/lib/lotus-worker
+RUN chown fc: /var/lib/lotus-wallet
+
+
+VOLUME /var/tmp/filecoin-proof-parameters
+VOLUME /var/lib/lotus
+VOLUME /var/lib/lotus-miner
+VOLUME /var/lib/lotus-worker
+VOLUME /var/lib/lotus-wallet
+
+EXPOSE 1234
+EXPOSE 2345
+EXPOSE 3456
+EXPOSE 1777
+
@@ -10,7 +10,7 @@ GOCC?=go
 GOVERSION:=$(shell $(GOCC) version | tr ' ' '\n' | grep go1 | sed 's/^go//' | awk -F. '{printf "%d%03d%03d", $$1, $$2, $$3}')
 ifeq ($(shell expr $(GOVERSION) \< 1016000), 1)
 $(warning Your Golang version is go$(shell expr $(GOVERSION) / 1000000).$(shell expr $(GOVERSION) % 1000000 / 1000).$(shell expr $(GOVERSION) % 1000))
-$(error Update Golang to version to at least 1.16.0)
+$(error Update Golang to version to at least 1.17.9)
 endif

 # git modules that need to be loaded
@@ -64,7 +64,7 @@ CLEAN+=build/.update-modules
 deps: $(BUILD_DEPS)
 .PHONY: deps

-build-devnets: build lotus-seed lotus-shed lotus-wallet lotus-gateway
+build-devnets: build lotus-seed lotus-shed lotus-wallet lotus-gateway lotus-fountain lotus-stats
 .PHONY: build-devnets

 debug: GOFLAGS+=-tags=debug
@@ -97,7 +97,7 @@ BINS+=lotus-miner

 lotus-worker: $(BUILD_DEPS)
 	rm -f lotus-worker
-	$(GOCC) build $(GOFLAGS) -o lotus-worker ./cmd/lotus-seal-worker
+	$(GOCC) build $(GOFLAGS) -o lotus-worker ./cmd/lotus-worker
 .PHONY: lotus-worker
 BINS+=lotus-worker

@@ -169,7 +169,7 @@ BINS+=lotus-fountain

 lotus-bench:
 	rm -f lotus-bench
-	$(GOCC) build -o lotus-bench ./cmd/lotus-bench
+	$(GOCC) build $(GOFLAGS) -o lotus-bench ./cmd/lotus-bench
 .PHONY: lotus-bench
 BINS+=lotus-bench

@@ -193,7 +193,7 @@ BINS+=lotus-health

 lotus-wallet:
 	rm -f lotus-wallet
-	$(GOCC) build -o lotus-wallet ./cmd/lotus-wallet
+	$(GOCC) build $(GOFLAGS) -o lotus-wallet ./cmd/lotus-wallet
 .PHONY: lotus-wallet
 BINS+=lotus-wallet

@@ -295,6 +295,12 @@ actors-gen:
 	$(GOCC) run ./chain/actors/agen
 	$(GOCC) fmt ./...

+bundle-gen:
+	$(GOCC) run ./gen/bundle
+	$(GOCC) fmt ./build/...
+.PHONY: bundle-gen
+
+
 api-gen:
 	$(GOCC) run ./gen/api
 	goimports -w api
@@ -341,10 +347,12 @@ docsgen-openrpc-worker: docsgen-openrpc-bin

 .PHONY: docsgen docsgen-md-bin docsgen-openrpc-bin

-gen: actors-gen type-gen method-gen cfgdoc-gen docsgen api-gen circleci
+gen: actors-gen type-gen method-gen cfgdoc-gen docsgen api-gen circleci bundle-gen
 	@echo ">>> IF YOU'VE MODIFIED THE CLI OR CONFIG, REMEMBER TO ALSO MAKE docsgen-cli"
 .PHONY: gen

+jen: gen
+
 snap: lotus lotus-miner lotus-worker
 	snapcraft
 	# snapcraft upload ./lotus_*.snap
@@ -360,4 +368,4 @@ print-%:
 	@echo $*=$($*)

 circleci:
-	go generate -x ./.circleci
+	go generate -x ./.circleci
@@ -10,7 +10,7 @@
  <a href="https://circleci.com/gh/filecoin-project/lotus"><img src="https://circleci.com/gh/filecoin-project/lotus.svg?style=svg"></a>
  <a href="https://codecov.io/gh/filecoin-project/lotus"><img src="https://codecov.io/gh/filecoin-project/lotus/branch/master/graph/badge.svg"></a>
  <a href="https://goreportcard.com/report/github.com/filecoin-project/lotus"><img src="https://goreportcard.com/badge/github.com/filecoin-project/lotus" /></a>  
-  <a href=""><img src="https://img.shields.io/badge/golang-%3E%3D1.16-blue.svg" /></a>
+  <a href=""><img src="https://img.shields.io/badge/golang-%3E%3D1.17-blue.svg" /></a>
  <br>
 </p>

@@ -71,10 +71,10 @@ For other distributions you can find the required dependencies [here.](https://d

 #### Go

-To build Lotus, you need a working installation of [Go 1.16.4 or higher](https://golang.org/dl/):
+To build Lotus, you need a working installation of [Go 1.17.9 or higher](https://golang.org/dl/):

 ```bash
-wget -c https://golang.org/dl/go1.16.4.linux-amd64.tar.gz -O - | sudo tar -xz -C /usr/local
+wget -c https://golang.org/dl/go1.17.9.linux-amd64.tar.gz -O - | sudo tar -xz -C /usr/local
 ```

 **TIP:**
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"time"

+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
 	"github.com/libp2p/go-libp2p-core/peer"

@@ -20,11 +21,12 @@ import (
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-fil-markets/storagemarket"

+	"github.com/filecoin-project/go-state-types/builtin/v8/market"
+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	"github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	apitypes "github.com/filecoin-project/lotus/api/types"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/market"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
+	lminer "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/power"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
@@ -37,6 +39,7 @@ import (
 type ChainIO interface {
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainPutObj(context.Context, blocks.Block) error
 }

 const LookbackNoLimit = abi.ChainEpoch(-1)
@@ -122,6 +125,9 @@ type FullNode interface {
 	// ChainHasObj checks if a given CID exists in the chain blockstore.
 	ChainHasObj(context.Context, cid.Cid) (bool, error) //perm:read

+	// ChainPutObj puts a given object into the block store
+	ChainPutObj(context.Context, blocks.Block) error //perm:admin
+
 	// ChainStatObj returns statistics about the graph referenced by 'obj'.
 	// If 'base' is also specified, then the returned stat will be a diff
 	// between the two objects.
@@ -170,14 +176,6 @@ type FullNode interface {
 	// ChainBlockstoreInfo returns some basic information about the blockstore
 	ChainBlockstoreInfo(context.Context) (map[string]interface{}, error) //perm:read

-	// MethodGroup: Beacon
-	// The Beacon method group contains methods for interacting with the random beacon (DRAND)
-
-	// BeaconGetEntry returns the beacon entry for the given filecoin epoch. If
-	// the entry has not yet been produced, the call will block until the entry
-	// becomes available
-	BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) //perm:read
-
 	// GasEstimateFeeCap estimates gas fee cap
 	GasEstimateFeeCap(context.Context, *types.Message, int64, types.TipSetKey) (types.BigInt, error) //perm:read

@@ -360,7 +358,7 @@ type FullNode interface {
 	// ClientGetRetrievalUpdates returns status of updated retrieval deals
 	ClientGetRetrievalUpdates(ctx context.Context) (<-chan RetrievalInfo, error) //perm:write
 	// ClientQueryAsk returns a signed StorageAsk from the specified miner.
-	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) //perm:read
+	ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*StorageAsk, error) //perm:read
 	// ClientCalcCommP calculates the CommP and data size of the specified CID
 	ClientDealPieceCID(ctx context.Context, root cid.Cid) (DataCIDSize, error) //perm:read
 	// ClientCalcCommP calculates the CommP for a specified file
@@ -443,7 +441,7 @@ type FullNode interface {
 	// StateMinerPower returns the power of the indicated miner
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error) //perm:read
 	// StateMinerInfo returns info about the indicated miner
-	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (miner.MinerInfo, error) //perm:read
+	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (MinerInfo, error) //perm:read
 	// StateMinerDeadlines returns all the proving deadlines for the given miner
 	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]Deadline, error) //perm:read
 	// StateMinerPartitions returns all partitions in the specified deadline
@@ -469,9 +467,9 @@ type FullNode interface {
 	// expiration epoch
 	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error) //perm:read
 	// StateSectorExpiration returns epoch at which given sector will expire
-	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorExpiration, error) //perm:read
+	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*lminer.SectorExpiration, error) //perm:read
 	// StateSectorPartition finds deadline/partition with the specified sector
-	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*miner.SectorLocation, error) //perm:read
+	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*lminer.SectorLocation, error) //perm:read
 	// StateSearchMsg looks back up to limit epochs in the chain for a message, and returns its receipt and the tipset where it was executed
 	//
 	// NOTE: If a replacing message is found on chain, this method will return
@@ -517,13 +515,15 @@ type FullNode interface {
 	// StateMarketParticipants returns the Escrow and Locked balances of every participant in the Storage Market
 	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]MarketBalance, error) //perm:read
 	// StateMarketDeals returns information about every deal in the Storage Market
-	StateMarketDeals(context.Context, types.TipSetKey) (map[string]MarketDeal, error) //perm:read
+	StateMarketDeals(context.Context, types.TipSetKey) (map[string]*MarketDeal, error) //perm:read
 	// StateMarketStorageDeal returns information about the indicated deal
 	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*MarketDeal, error) //perm:read
 	// StateLookupID retrieves the ID address of the given address
 	StateLookupID(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
-	// StateAccountKey returns the public key address of the given ID address
+	// StateAccountKey returns the public key address of the given ID address for secp and bls accounts
 	StateAccountKey(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
+	// StateLookupRobustAddress returns the public key address of the given ID address for non-account addresses (multisig, miners etc)
+	StateLookupRobustAddress(context.Context, address.Address, types.TipSetKey) (address.Address, error) //perm:read
 	// StateChangedActors returns all the actors whose states change between the two given state CIDs
 	// TODO: Should this take tipset keys instead?
 	StateChangedActors(context.Context, cid.Cid, cid.Cid) (map[string]types.Actor, error) //perm:read
@@ -590,6 +590,14 @@ type FullNode interface {
 	// StateGetRandomnessFromBeacon is used to sample the beacon for randomness.
 	StateGetRandomnessFromBeacon(ctx context.Context, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte, tsk types.TipSetKey) (abi.Randomness, error) //perm:read

+	// StateGetBeaconEntry returns the beacon entry for the given filecoin epoch. If
+	// the entry has not yet been produced, the call will block until the entry
+	// becomes available
+	StateGetBeaconEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) //perm:read
+
+	// StateGetNetworkParams return current network params
+	StateGetNetworkParams(ctx context.Context) (*NetworkParams, error) //perm:read
+
 	// MethodGroup: Msig
 	// The Msig methods are used to interact with multisig wallets on the
 	// filecoin network
@@ -689,7 +697,17 @@ type FullNode interface {
 	// MethodGroup: Paych
 	// The Paych methods are for interacting with and managing payment channels

-	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)                     //perm:sign
+	// PaychGet gets or creates a payment channel between address pair
+	//  The specified amount will be reserved for use. If there aren't enough non-reserved funds
+	//    available, funds will be added through an on-chain message.
+	//  - When opts.OffChain is true, this call will not cause any messages to be sent to the chain (no automatic
+	//    channel creation/funds adding). If the operation can't be performed without sending a message an error will be
+	//    returned. Note that even when this option is specified, this call can be blocked by previous operations on the
+	//    channel waiting for on-chain operations.
+	PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt, opts PaychGetOpts) (*ChannelInfo, error) //perm:sign
+	// PaychFund gets or creates a payment channel between address pair.
+	// The specified amount will be added to the channel through on-chain send for future use
+	PaychFund(ctx context.Context, from, to address.Address, amt types.BigInt) (*ChannelInfo, error)                    //perm:sign
 	PaychGetWaitReady(context.Context, cid.Cid) (address.Address, error)                                                //perm:sign
 	PaychAvailableFunds(ctx context.Context, ch address.Address) (*ChannelAvailableFunds, error)                        //perm:sign
 	PaychAvailableFundsByFromTo(ctx context.Context, from, to address.Address) (*ChannelAvailableFunds, error)          //perm:sign
@@ -718,6 +736,12 @@ type FullNode interface {
 	CreateBackup(ctx context.Context, fpath string) error //perm:admin
 }

+type StorageAsk struct {
+	Response *storagemarket.StorageAsk
+
+	DealProtocols []string
+}
+
 type FileRef struct {
 	Path  string
 	IsCAR bool
@@ -828,6 +852,10 @@ const (
 	PCHOutbound
 )

+type PaychGetOpts struct {
+	OffChain bool
+}
+
 type PaychStatus struct {
 	ControlAddr address.Address
 	Direction   PCHDir
@@ -845,16 +873,23 @@ type ChannelAvailableFunds struct {
 	From address.Address
 	// To is the to address of the channel
 	To address.Address
-	// ConfirmedAmt is the amount of funds that have been confirmed on-chain
-	// for the channel
+
+	// ConfirmedAmt is the total amount of funds that have been confirmed on-chain for the channel
 	ConfirmedAmt types.BigInt
 	// PendingAmt is the amount of funds that are pending confirmation on-chain
 	PendingAmt types.BigInt
+
+	// NonReservedAmt is part of ConfirmedAmt that is available for use (e.g. when the payment channel was pre-funded)
+	NonReservedAmt types.BigInt
+	// PendingAvailableAmt is the amount of funds that are pending confirmation on-chain that will become available once confirmed
+	PendingAvailableAmt types.BigInt
+
 	// PendingWaitSentinel can be used with PaychGetWaitReady to wait for
 	// confirmation of pending funds
 	PendingWaitSentinel *cid.Cid
 	// QueuedAmt is the amount that is queued up behind a pending request
 	QueuedAmt types.BigInt
+
 	// VoucherRedeemedAmt is the amount that is redeemed by vouchers on-chain
 	// and in the local datastore
 	VoucherReedeemedAmt types.BigInt
@@ -3,14 +3,15 @@ package api
 import (
 	"context"

+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/dline"

+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
 	apitypes "github.com/filecoin-project/lotus/api/types"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 )

@@ -30,6 +31,7 @@ import (

 type Gateway interface {
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainPutObj(context.Context, blocks.Block) error
 	ChainHead(ctx context.Context) (*types.TipSet, error)
 	ChainGetParentMessages(context.Context, cid.Cid) ([]Message, error)
 	ChainGetParentReceipts(context.Context, cid.Cid) ([]*types.MessageReceipt, error)
@@ -45,8 +47,9 @@ type Gateway interface {
 	GasEstimateMessageGas(ctx context.Context, msg *types.Message, spec *MessageSendSpec, tsk types.TipSetKey) (*types.Message, error)
 	MpoolPush(ctx context.Context, sm *types.SignedMessage) (cid.Cid, error)
 	MsigGetAvailableBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (types.BigInt, error)
-	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
 	MsigGetPending(context.Context, address.Address, types.TipSetKey) ([]*MsigTransaction, error)
+	MsigGetVested(ctx context.Context, addr address.Address, start types.TipSetKey, end types.TipSetKey) (types.BigInt, error)
+	MsigGetVestingSchedule(ctx context.Context, addr address.Address, tsk types.TipSetKey) (MsigVesting, error)
 	StateAccountKey(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateDealProviderCollateralBounds(ctx context.Context, size abi.PaddedPieceSize, verified bool, tsk types.TipSetKey) (DealCollateralBounds, error)
 	StateGetActor(ctx context.Context, actor address.Address, ts types.TipSetKey) (*types.Actor, error)
@@ -55,7 +58,7 @@ type Gateway interface {
 	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (MarketBalance, error)
 	StateMarketStorageDeal(ctx context.Context, dealId abi.DealID, tsk types.TipSetKey) (*MarketDeal, error)
-	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (miner.MinerInfo, error)
+	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (MinerInfo, error)
 	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*MinerPower, error)
 	StateNetworkVersion(context.Context, types.TipSetKey) (apitypes.NetworkVersion, error)
@@ -2,6 +2,7 @@ package api

 import (
 	"context"
+	"time"

 	metrics "github.com/libp2p/go-libp2p-core/metrics"
 	"github.com/libp2p/go-libp2p-core/network"
@@ -25,6 +26,7 @@ type Net interface {

 	NetConnectedness(context.Context, peer.ID) (network.Connectedness, error) //perm:read
 	NetPeers(context.Context) ([]peer.AddrInfo, error)                        //perm:read
+	NetPing(context.Context, peer.ID) (time.Duration, error)                  //perm:read
 	NetConnect(context.Context, peer.AddrInfo) error                          //perm:write
 	NetAddrsListen(context.Context) (peer.AddrInfo, error)                    //perm:read
 	NetDisconnect(context.Context, peer.ID) error                             //perm:write
@@ -5,6 +5,7 @@ import (
 	"context"
 	"time"

+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"

 	"github.com/google/uuid"
@@ -14,8 +15,8 @@ import (
 	"github.com/filecoin-project/go-address"
 	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/builtin/v8/market"
 	abinetwork "github.com/filecoin-project/go-state-types/network"
-	"github.com/filecoin-project/specs-actors/v2/actors/builtin/market"
 	"github.com/filecoin-project/specs-storage/storage"

 	"github.com/filecoin-project/go-fil-markets/piecestore"
@@ -24,7 +25,6 @@ import (

 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/extern/sector-storage/fsutil"
-	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
 )
@@ -52,6 +52,10 @@ type StorageMiner interface {

 	MiningBase(context.Context) (*types.TipSet, error) //perm:read

+	ComputeWindowPoSt(ctx context.Context, dlIdx uint64, tsk types.TipSetKey) ([]miner.SubmitWindowedPoStParams, error) //perm:admin
+
+	ComputeDataCid(ctx context.Context, pieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (abi.PieceInfo, error) //perm:admin
+
 	// Temp api for testing
 	PledgeSector(context.Context) (abi.SectorID, error) //perm:write

@@ -92,7 +96,8 @@ type StorageMiner interface {
 	SectorsUpdate(context.Context, abi.SectorNumber, SectorState) error   //perm:admin
 	// SectorRemove removes the sector from storage. It doesn't terminate it on-chain, which can
 	// be done with SectorTerminate. Removing and not terminating live sectors will cause additional penalties.
-	SectorRemove(context.Context, abi.SectorNumber) error //perm:admin
+	SectorRemove(context.Context, abi.SectorNumber) error                           //perm:admin
+	SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber, snap bool) error //perm:admin
 	// SectorTerminate terminates the sector on-chain (adding it to a termination batch first), then
 	// automatically removes it from storage
 	SectorTerminate(context.Context, abi.SectorNumber) error //perm:admin
@@ -100,8 +105,7 @@ type StorageMiner interface {
 	// Returns null if message wasn't sent
 	SectorTerminateFlush(ctx context.Context) (*cid.Cid, error) //perm:admin
 	// SectorTerminatePending returns a list of pending sector terminations to be sent in the next batch message
-	SectorTerminatePending(ctx context.Context) ([]abi.SectorID, error)             //perm:admin
-	SectorMarkForUpgrade(ctx context.Context, id abi.SectorNumber, snap bool) error //perm:admin
+	SectorTerminatePending(ctx context.Context) ([]abi.SectorID, error) //perm:admin
 	// SectorPreCommitFlush immediately sends a PreCommit message with sectors batched for PreCommit.
 	// Returns null if message wasn't sent
 	SectorPreCommitFlush(ctx context.Context) ([]sealiface.PreCommitBatchRes, error) //perm:admin
@@ -113,6 +117,8 @@ type StorageMiner interface {
 	// SectorCommitPending returns a list of pending Commit sectors to be sent in the next aggregate message
 	SectorCommitPending(ctx context.Context) ([]abi.SectorID, error) //perm:admin
 	SectorMatchPendingPiecesToOpenSectors(ctx context.Context) error //perm:admin
+	// SectorAbortUpgrade can be called on sectors that are in the process of being upgraded to abort it
+	SectorAbortUpgrade(context.Context, abi.SectorNumber) error //perm:admin

 	// WorkerConnect tells the node to connect to workers RPC
 	WorkerConnect(context.Context, string) error                              //perm:admin retry:true
@@ -120,6 +126,7 @@ type StorageMiner interface {
 	WorkerJobs(context.Context) (map[uuid.UUID][]storiface.WorkerJob, error)  //perm:admin

 	//storiface.WorkerReturn
+	ReturnDataCid(ctx context.Context, callID storiface.CallID, pi abi.PieceInfo, err *storiface.CallError) error                                       //perm:admin retry:true
 	ReturnAddPiece(ctx context.Context, callID storiface.CallID, pi abi.PieceInfo, err *storiface.CallError) error                                      //perm:admin retry:true
 	ReturnSealPreCommit1(ctx context.Context, callID storiface.CallID, p1o storage.PreCommit1Out, err *storiface.CallError) error                       //perm:admin retry:true
 	ReturnSealPreCommit2(ctx context.Context, callID storiface.CallID, sealed storage.SectorCids, err *storiface.CallError) error                       //perm:admin retry:true
@@ -130,6 +137,7 @@ type StorageMiner interface {
 	ReturnProveReplicaUpdate1(ctx context.Context, callID storiface.CallID, vanillaProofs storage.ReplicaVanillaProofs, err *storiface.CallError) error //perm:admin retry:true
 	ReturnProveReplicaUpdate2(ctx context.Context, callID storiface.CallID, proof storage.ReplicaUpdateProof, err *storiface.CallError) error           //perm:admin retry:true
 	ReturnGenerateSectorKeyFromData(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                       //perm:admin retry:true
+	ReturnFinalizeReplicaUpdate(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                           //perm:admin retry:true
 	ReturnReleaseUnsealed(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                                 //perm:admin retry:true
 	ReturnMoveStorage(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                                     //perm:admin retry:true
 	ReturnUnsealPiece(ctx context.Context, callID storiface.CallID, err *storiface.CallError) error                                                     //perm:admin retry:true
@@ -140,24 +148,24 @@ type StorageMiner interface {
 	SealingSchedDiag(ctx context.Context, doSched bool) (interface{}, error) //perm:admin
 	SealingAbort(ctx context.Context, call storiface.CallID) error           //perm:admin

-	//stores.SectorIndex
-	StorageAttach(context.Context, stores.StorageInfo, fsutil.FsStat) error                                                                                             //perm:admin
-	StorageInfo(context.Context, stores.ID) (stores.StorageInfo, error)                                                                                                 //perm:admin
-	StorageReportHealth(context.Context, stores.ID, stores.HealthReport) error                                                                                          //perm:admin
-	StorageDeclareSector(ctx context.Context, storageID stores.ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error                                     //perm:admin
-	StorageDropSector(ctx context.Context, storageID stores.ID, s abi.SectorID, ft storiface.SectorFileType) error                                                      //perm:admin
-	StorageFindSector(ctx context.Context, sector abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]stores.SectorStorageInfo, error) //perm:admin
-	StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]stores.StorageInfo, error)           //perm:admin
-	StorageLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) error                                          //perm:admin
-	StorageTryLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) (bool, error)                               //perm:admin
-	StorageList(ctx context.Context) (map[stores.ID][]stores.Decl, error)                                                                                               //perm:admin
-	StorageGetLocks(ctx context.Context) (storiface.SectorLocks, error)                                                                                                 //perm:admin
+	// SectorIndex
+	StorageAttach(context.Context, storiface.StorageInfo, fsutil.FsStat) error                                                                                             //perm:admin
+	StorageInfo(context.Context, storiface.ID) (storiface.StorageInfo, error)                                                                                              //perm:admin
+	StorageReportHealth(context.Context, storiface.ID, storiface.HealthReport) error                                                                                       //perm:admin
+	StorageDeclareSector(ctx context.Context, storageID storiface.ID, s abi.SectorID, ft storiface.SectorFileType, primary bool) error                                     //perm:admin
+	StorageDropSector(ctx context.Context, storageID storiface.ID, s abi.SectorID, ft storiface.SectorFileType) error                                                      //perm:admin
+	StorageFindSector(ctx context.Context, sector abi.SectorID, ft storiface.SectorFileType, ssize abi.SectorSize, allowFetch bool) ([]storiface.SectorStorageInfo, error) //perm:admin
+	StorageBestAlloc(ctx context.Context, allocate storiface.SectorFileType, ssize abi.SectorSize, pathType storiface.PathType) ([]storiface.StorageInfo, error)           //perm:admin
+	StorageLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) error                                             //perm:admin
+	StorageTryLock(ctx context.Context, sector abi.SectorID, read storiface.SectorFileType, write storiface.SectorFileType) (bool, error)                                  //perm:admin
+	StorageList(ctx context.Context) (map[storiface.ID][]storiface.Decl, error)                                                                                            //perm:admin
+	StorageGetLocks(ctx context.Context) (storiface.SectorLocks, error)                                                                                                    //perm:admin

-	StorageLocal(ctx context.Context) (map[stores.ID]string, error)       //perm:admin
-	StorageStat(ctx context.Context, id stores.ID) (fsutil.FsStat, error) //perm:admin
+	StorageLocal(ctx context.Context) (map[storiface.ID]string, error)       //perm:admin
+	StorageStat(ctx context.Context, id storiface.ID) (fsutil.FsStat, error) //perm:admin

 	MarketImportDealData(ctx context.Context, propcid cid.Cid, path string) error                                                                                                        //perm:write
-	MarketListDeals(ctx context.Context) ([]MarketDeal, error)                                                                                                                           //perm:read
+	MarketListDeals(ctx context.Context) ([]*MarketDeal, error)                                                                                                                          //perm:read
 	MarketListRetrievalDeals(ctx context.Context) ([]retrievalmarket.ProviderDealState, error)                                                                                           //perm:read
 	MarketGetDealUpdates(ctx context.Context) (<-chan storagemarket.MinerDeal, error)                                                                                                    //perm:read
 	MarketListIncompleteDeals(ctx context.Context) ([]storagemarket.MinerDeal, error)                                                                                                    //perm:read
@@ -226,9 +234,6 @@ type StorageMiner interface {
 	// IndexerAnnounceAllDeals informs the indexer nodes aboutall active deals.
 	IndexerAnnounceAllDeals(ctx context.Context) error //perm:admin

-	// DagstorePieceIndexSize returns the size of the piece index.
-	DagstorePieceIndexSize(ctx context.Context) (int64, error) //perm:admin
-
 	// DagstoreLookupPieces returns information about shards that contain the given CID.
 	DagstoreLookupPieces(ctx context.Context, cid cid.Cid) ([]DagstoreShardInfo, error) //perm:admin

@@ -237,7 +242,7 @@ type StorageMiner interface {
 	RuntimeSubsystems(ctx context.Context) (MinerSubsystems, error) //perm:read

 	DealsImportData(ctx context.Context, dealPropCid cid.Cid, file string) error //perm:admin
-	DealsList(ctx context.Context) ([]MarketDeal, error)                         //perm:admin
+	DealsList(ctx context.Context) ([]*MarketDeal, error)                        //perm:admin
 	DealsConsiderOnlineStorageDeals(context.Context) (bool, error)               //perm:admin
 	DealsSetConsiderOnlineStorageDeals(context.Context, bool) error              //perm:admin
 	DealsConsiderOnlineRetrievalDeals(context.Context) (bool, error)             //perm:admin
@@ -272,7 +277,6 @@ type StorageMiner interface {
 }

 var _ storiface.WorkerReturn = *new(StorageMiner)
-var _ stores.SectorIndex = *new(StorageMiner)

 type SealRes struct {
 	Err   string
@@ -296,19 +300,20 @@ type SectorPiece struct {
 }

 type SectorInfo struct {
-	SectorID     abi.SectorNumber
-	State        SectorState
-	CommD        *cid.Cid
-	CommR        *cid.Cid
-	Proof        []byte
-	Deals        []abi.DealID
-	Pieces       []SectorPiece
-	Ticket       SealTicket
-	Seed         SealSeed
-	PreCommitMsg *cid.Cid
-	CommitMsg    *cid.Cid
-	Retries      uint64
-	ToUpgrade    bool
+	SectorID             abi.SectorNumber
+	State                SectorState
+	CommD                *cid.Cid
+	CommR                *cid.Cid
+	Proof                []byte
+	Deals                []abi.DealID
+	Pieces               []SectorPiece
+	Ticket               SealTicket
+	Seed                 SealSeed
+	PreCommitMsg         *cid.Cid
+	CommitMsg            *cid.Cid
+	Retries              uint64
+	ToUpgrade            bool
+	ReplicaUpdateMessage *cid.Cid

 	LastErr string

@@ -1,3 +1,4 @@
+//stm: #unit
 package api

 import (
@@ -26,6 +27,7 @@ func goCmd() string {
 }

 func TestDoesntDependOnFFI(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_FFI_DEPENDENCE_001
 	deps, err := exec.Command(goCmd(), "list", "-deps", "github.com/filecoin-project/lotus/api").Output()
 	if err != nil {
 		t.Fatal(err)
@@ -38,6 +40,7 @@ func TestDoesntDependOnFFI(t *testing.T) {
 }

 func TestDoesntDependOnBuild(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_FFI_DEPENDENCE_002
 	deps, err := exec.Command(goCmd(), "list", "-deps", "github.com/filecoin-project/lotus/api").Output()
 	if err != nil {
 		t.Fatal(err)
@@ -50,6 +53,7 @@ func TestDoesntDependOnBuild(t *testing.T) {
 }

 func TestReturnTypes(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_001
 	errType := reflect.TypeOf(new(error)).Elem()
 	bareIface := reflect.TypeOf(new(interface{})).Elem()
 	jmarsh := reflect.TypeOf(new(json.Marshaler)).Elem()
@@ -115,6 +119,7 @@ func TestReturnTypes(t *testing.T) {
 }

 func TestPermTags(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_PERM_TAGS_001
 	_ = PermissionedFullAPI(&FullNodeStruct{})
 	_ = PermissionedStorMinerAPI(&StorageMinerStruct{})
 	_ = PermissionedWorkerAPI(&WorkerStruct{})
@@ -3,12 +3,13 @@ package api
 import (
 	"context"

+	"github.com/filecoin-project/go-state-types/proof"
+
 	"github.com/google/uuid"
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/lotus/extern/sector-storage/sealtasks"
-	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	"github.com/filecoin-project/specs-storage/storage"
 )
@@ -29,16 +30,18 @@ type Worker interface {

 	// TaskType -> Weight
 	TaskTypes(context.Context) (map[sealtasks.TaskType]struct{}, error) //perm:admin
-	Paths(context.Context) ([]stores.StoragePath, error)                //perm:admin
+	Paths(context.Context) ([]storiface.StoragePath, error)             //perm:admin
 	Info(context.Context) (storiface.WorkerInfo, error)                 //perm:admin

 	// storiface.WorkerCalls
+	DataCid(ctx context.Context, pieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (storiface.CallID, error)                                                                                      //perm:admin
 	AddPiece(ctx context.Context, sector storage.SectorRef, pieceSizes []abi.UnpaddedPieceSize, newPieceSize abi.UnpaddedPieceSize, pieceData storage.Data) (storiface.CallID, error)                    //perm:admin
 	SealPreCommit1(ctx context.Context, sector storage.SectorRef, ticket abi.SealRandomness, pieces []abi.PieceInfo) (storiface.CallID, error)                                                           //perm:admin
 	SealPreCommit2(ctx context.Context, sector storage.SectorRef, pc1o storage.PreCommit1Out) (storiface.CallID, error)                                                                                  //perm:admin
 	SealCommit1(ctx context.Context, sector storage.SectorRef, ticket abi.SealRandomness, seed abi.InteractiveSealRandomness, pieces []abi.PieceInfo, cids storage.SectorCids) (storiface.CallID, error) //perm:admin
 	SealCommit2(ctx context.Context, sector storage.SectorRef, c1o storage.Commit1Out) (storiface.CallID, error)                                                                                         //perm:admin
 	FinalizeSector(ctx context.Context, sector storage.SectorRef, keepUnsealed []storage.Range) (storiface.CallID, error)                                                                                //perm:admin
+	FinalizeReplicaUpdate(ctx context.Context, sector storage.SectorRef, keepUnsealed []storage.Range) (storiface.CallID, error)                                                                         //perm:admin
 	ReplicaUpdate(ctx context.Context, sector storage.SectorRef, pieces []abi.PieceInfo) (storiface.CallID, error)                                                                                       //perm:admin
 	ProveReplicaUpdate1(ctx context.Context, sector storage.SectorRef, sectorKey, newSealed, newUnsealed cid.Cid) (storiface.CallID, error)                                                              //perm:admin
 	ProveReplicaUpdate2(ctx context.Context, sector storage.SectorRef, sectorKey, newSealed, newUnsealed cid.Cid, vanillaProofs storage.ReplicaVanillaProofs) (storiface.CallID, error)                  //perm:admin
@@ -48,6 +51,9 @@ type Worker interface {
 	UnsealPiece(context.Context, storage.SectorRef, storiface.UnpaddedByteIndex, abi.UnpaddedPieceSize, abi.SealRandomness, cid.Cid) (storiface.CallID, error)                                           //perm:admin
 	Fetch(context.Context, storage.SectorRef, storiface.SectorFileType, storiface.PathType, storiface.AcquireMode) (storiface.CallID, error)                                                             //perm:admin

+	GenerateWinningPoSt(ctx context.Context, ppt abi.RegisteredPoStProof, mid abi.ActorID, sectors []storiface.PostSectorChallenge, randomness abi.PoStRandomness) ([]proof.PoStProof, error)                           //perm:admin
+	GenerateWindowPoSt(ctx context.Context, ppt abi.RegisteredPoStProof, mid abi.ActorID, sectors []storiface.PostSectorChallenge, partitionIdx int, randomness abi.PoStRandomness) (storiface.WindowPoStResult, error) //perm:admin
+
 	TaskDisable(ctx context.Context, tt sealtasks.TaskType) error //perm:admin
 	TaskEnable(ctx context.Context, tt sealtasks.TaskType) error  //perm:admin

@@ -9,8 +9,8 @@ import (
 	"sort"

 	abi "github.com/filecoin-project/go-state-types/abi"
-	market "github.com/filecoin-project/specs-actors/actors/builtin/market"
-	paych "github.com/filecoin-project/specs-actors/actors/builtin/paych"
+	market "github.com/filecoin-project/go-state-types/builtin/v8/market"
+	paych "github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	cid "github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	xerrors "golang.org/x/xerrors"
@@ -26,25 +26,26 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{163}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{163}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.Channel (address.Address) (struct)
 	if len("Channel") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"Channel\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Channel"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Channel"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Channel")); err != nil {
 		return err
 	}

-	if err := t.Channel.MarshalCBOR(w); err != nil {
+	if err := t.Channel.MarshalCBOR(cw); err != nil {
 		return err
 	}

@@ -53,14 +54,14 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"WaitSentinel\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("WaitSentinel"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("WaitSentinel"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("WaitSentinel")); err != nil {
 		return err
 	}

-	if err := cbg.WriteCidBuf(scratch, w, t.WaitSentinel); err != nil {
+	if err := cbg.WriteCid(cw, t.WaitSentinel); err != nil {
 		return xerrors.Errorf("failed to write cid field t.WaitSentinel: %w", err)
 	}

@@ -69,7 +70,7 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"Vouchers\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Vouchers"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Vouchers"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Vouchers")); err != nil {
@@ -80,27 +81,32 @@ func (t *PaymentInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Slice value in field t.Vouchers was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajArray, uint64(len(t.Vouchers))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajArray, uint64(len(t.Vouchers))); err != nil {
 		return err
 	}
 	for _, v := range t.Vouchers {
-		if err := v.MarshalCBOR(w); err != nil {
+		if err := v.MarshalCBOR(cw); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
+func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = PaymentInfo{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -115,7 +121,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -129,7 +135,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				if err := t.Channel.UnmarshalCBOR(br); err != nil {
+				if err := t.Channel.UnmarshalCBOR(cr); err != nil {
 					return xerrors.Errorf("unmarshaling t.Channel: %w", err)
 				}

@@ -139,7 +145,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				c, err := cbg.ReadCid(br)
+				c, err := cbg.ReadCid(cr)
 				if err != nil {
 					return xerrors.Errorf("failed to read cid field t.WaitSentinel: %w", err)
 				}
@@ -150,7 +156,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 			// t.Vouchers ([]*paych.SignedVoucher) (slice)
 		case "Vouchers":

-			maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+			maj, extra, err = cr.ReadHeader()
 			if err != nil {
 				return err
 			}
@@ -170,7 +176,7 @@ func (t *PaymentInfo) UnmarshalCBOR(r io.Reader) error {
 			for i := 0; i < int(extra); i++ {

 				var v paych.SignedVoucher
-				if err := v.UnmarshalCBOR(br); err != nil {
+				if err := v.UnmarshalCBOR(cr); err != nil {
 					return err
 				}

@@ -190,25 +196,26 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{163}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{163}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.SectorID (abi.SectorNumber) (uint64)
 	if len("SectorID") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"SectorID\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("SectorID"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("SectorID"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("SectorID")); err != nil {
 		return err
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.SectorID)); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.SectorID)); err != nil {
 		return err
 	}

@@ -217,14 +224,14 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"Offset\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Offset"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Offset"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Offset")); err != nil {
 		return err
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.Offset)); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.Offset)); err != nil {
 		return err
 	}

@@ -233,30 +240,35 @@ func (t *SealedRef) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"Size\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Size"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Size"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Size")); err != nil {
 		return err
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.Size)); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.Size)); err != nil {
 		return err
 	}

 	return nil
 }

-func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {
+func (t *SealedRef) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = SealedRef{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -271,7 +283,7 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -285,7 +297,7 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {

 			{

-				maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err = cr.ReadHeader()
 				if err != nil {
 					return err
 				}
@@ -300,7 +312,7 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {

 			{

-				maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err = cr.ReadHeader()
 				if err != nil {
 					return err
 				}
@@ -315,7 +327,7 @@ func (t *SealedRef) UnmarshalCBOR(r io.Reader) error {

 			{

-				maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err = cr.ReadHeader()
 				if err != nil {
 					return err
 				}
@@ -339,18 +351,19 @@ func (t *SealedRefs) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{161}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{161}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.Refs ([]api.SealedRef) (slice)
 	if len("Refs") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"Refs\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Refs"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Refs"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Refs")); err != nil {
@@ -361,27 +374,32 @@ func (t *SealedRefs) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Slice value in field t.Refs was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajArray, uint64(len(t.Refs))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajArray, uint64(len(t.Refs))); err != nil {
 		return err
 	}
 	for _, v := range t.Refs {
-		if err := v.MarshalCBOR(w); err != nil {
+		if err := v.MarshalCBOR(cw); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (t *SealedRefs) UnmarshalCBOR(r io.Reader) error {
+func (t *SealedRefs) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = SealedRefs{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -396,7 +414,7 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -408,7 +426,7 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) error {
 		// t.Refs ([]api.SealedRef) (slice)
 		case "Refs":

-			maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+			maj, extra, err = cr.ReadHeader()
 			if err != nil {
 				return err
 			}
@@ -428,7 +446,7 @@ func (t *SealedRefs) UnmarshalCBOR(r io.Reader) error {
 			for i := 0; i < int(extra); i++ {

 				var v SealedRef
-				if err := v.UnmarshalCBOR(br); err != nil {
+				if err := v.UnmarshalCBOR(cr); err != nil {
 					return err
 				}

@@ -448,18 +466,19 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{162}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{162}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.Value (abi.SealRandomness) (slice)
 	if len("Value") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"Value\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Value"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Value"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Value")); err != nil {
@@ -470,11 +489,11 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Byte array in field t.Value was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajByteString, uint64(len(t.Value))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajByteString, uint64(len(t.Value))); err != nil {
 		return err
 	}

-	if _, err := w.Write(t.Value[:]); err != nil {
+	if _, err := cw.Write(t.Value[:]); err != nil {
 		return err
 	}

@@ -483,7 +502,7 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"Epoch\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Epoch"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Epoch"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Epoch")); err != nil {
@@ -491,27 +510,32 @@ func (t *SealTicket) MarshalCBOR(w io.Writer) error {
 	}

 	if t.Epoch >= 0 {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.Epoch)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.Epoch)); err != nil {
 			return err
 		}
 	} else {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajNegativeInt, uint64(-t.Epoch-1)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajNegativeInt, uint64(-t.Epoch-1)); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (t *SealTicket) UnmarshalCBOR(r io.Reader) error {
+func (t *SealTicket) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = SealTicket{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -526,7 +550,7 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -538,7 +562,7 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) error {
 		// t.Value (abi.SealRandomness) (slice)
 		case "Value":

-			maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+			maj, extra, err = cr.ReadHeader()
 			if err != nil {
 				return err
 			}
@@ -554,13 +578,13 @@ func (t *SealTicket) UnmarshalCBOR(r io.Reader) error {
 				t.Value = make([]uint8, extra)
 			}

-			if _, err := io.ReadFull(br, t.Value[:]); err != nil {
+			if _, err := io.ReadFull(cr, t.Value[:]); err != nil {
 				return err
 			}
 			// t.Epoch (abi.ChainEpoch) (int64)
 		case "Epoch":
 			{
-				maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err := cr.ReadHeader()
 				var extraI int64
 				if err != nil {
 					return err
@@ -597,18 +621,19 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{162}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{162}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.Value (abi.InteractiveSealRandomness) (slice)
 	if len("Value") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"Value\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Value"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Value"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Value")); err != nil {
@@ -619,11 +644,11 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Byte array in field t.Value was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajByteString, uint64(len(t.Value))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajByteString, uint64(len(t.Value))); err != nil {
 		return err
 	}

-	if _, err := w.Write(t.Value[:]); err != nil {
+	if _, err := cw.Write(t.Value[:]); err != nil {
 		return err
 	}

@@ -632,7 +657,7 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"Epoch\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("Epoch"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("Epoch"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("Epoch")); err != nil {
@@ -640,27 +665,32 @@ func (t *SealSeed) MarshalCBOR(w io.Writer) error {
 	}

 	if t.Epoch >= 0 {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.Epoch)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.Epoch)); err != nil {
 			return err
 		}
 	} else {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajNegativeInt, uint64(-t.Epoch-1)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajNegativeInt, uint64(-t.Epoch-1)); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (t *SealSeed) UnmarshalCBOR(r io.Reader) error {
+func (t *SealSeed) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = SealSeed{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -675,7 +705,7 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -687,7 +717,7 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) error {
 		// t.Value (abi.InteractiveSealRandomness) (slice)
 		case "Value":

-			maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+			maj, extra, err = cr.ReadHeader()
 			if err != nil {
 				return err
 			}
@@ -703,13 +733,13 @@ func (t *SealSeed) UnmarshalCBOR(r io.Reader) error {
 				t.Value = make([]uint8, extra)
 			}

-			if _, err := io.ReadFull(br, t.Value[:]); err != nil {
+			if _, err := io.ReadFull(cr, t.Value[:]); err != nil {
 				return err
 			}
 			// t.Epoch (abi.ChainEpoch) (int64)
 		case "Epoch":
 			{
-				maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err := cr.ReadHeader()
 				var extraI int64
 				if err != nil {
 					return err
@@ -746,18 +776,19 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{165}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{165}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.PublishCid (cid.Cid) (struct)
 	if len("PublishCid") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"PublishCid\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("PublishCid"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("PublishCid"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("PublishCid")); err != nil {
@@ -765,11 +796,11 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	}

 	if t.PublishCid == nil {
-		if _, err := w.Write(cbg.CborNull); err != nil {
+		if _, err := cw.Write(cbg.CborNull); err != nil {
 			return err
 		}
 	} else {
-		if err := cbg.WriteCidBuf(scratch, w, *t.PublishCid); err != nil {
+		if err := cbg.WriteCid(cw, *t.PublishCid); err != nil {
 			return xerrors.Errorf("failed to write cid field t.PublishCid: %w", err)
 		}
 	}
@@ -779,14 +810,14 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"DealID\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("DealID"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("DealID"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("DealID")); err != nil {
 		return err
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.DealID)); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.DealID)); err != nil {
 		return err
 	}

@@ -795,14 +826,14 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"DealProposal\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("DealProposal"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("DealProposal"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("DealProposal")); err != nil {
 		return err
 	}

-	if err := t.DealProposal.MarshalCBOR(w); err != nil {
+	if err := t.DealProposal.MarshalCBOR(cw); err != nil {
 		return err
 	}

@@ -811,14 +842,14 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"DealSchedule\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("DealSchedule"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("DealSchedule"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("DealSchedule")); err != nil {
 		return err
 	}

-	if err := t.DealSchedule.MarshalCBOR(w); err != nil {
+	if err := t.DealSchedule.MarshalCBOR(cw); err != nil {
 		return err
 	}

@@ -827,7 +858,7 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"KeepUnsealed\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("KeepUnsealed"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("KeepUnsealed"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("KeepUnsealed")); err != nil {
@@ -840,16 +871,21 @@ func (t *PieceDealInfo) MarshalCBOR(w io.Writer) error {
 	return nil
 }

-func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {
+func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = PieceDealInfo{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -864,7 +900,7 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -878,16 +914,16 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				b, err := br.ReadByte()
+				b, err := cr.ReadByte()
 				if err != nil {
 					return err
 				}
 				if b != cbg.CborNull[0] {
-					if err := br.UnreadByte(); err != nil {
+					if err := cr.UnreadByte(); err != nil {
 						return err
 					}

-					c, err := cbg.ReadCid(br)
+					c, err := cbg.ReadCid(cr)
 					if err != nil {
 						return xerrors.Errorf("failed to read cid field t.PublishCid: %w", err)
 					}
@@ -901,7 +937,7 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err = cr.ReadHeader()
 				if err != nil {
 					return err
 				}
@@ -916,16 +952,16 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				b, err := br.ReadByte()
+				b, err := cr.ReadByte()
 				if err != nil {
 					return err
 				}
 				if b != cbg.CborNull[0] {
-					if err := br.UnreadByte(); err != nil {
+					if err := cr.UnreadByte(); err != nil {
 						return err
 					}
 					t.DealProposal = new(market.DealProposal)
-					if err := t.DealProposal.UnmarshalCBOR(br); err != nil {
+					if err := t.DealProposal.UnmarshalCBOR(cr); err != nil {
 						return xerrors.Errorf("unmarshaling t.DealProposal pointer: %w", err)
 					}
 				}
@@ -936,7 +972,7 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {

 			{

-				if err := t.DealSchedule.UnmarshalCBOR(br); err != nil {
+				if err := t.DealSchedule.UnmarshalCBOR(cr); err != nil {
 					return xerrors.Errorf("unmarshaling t.DealSchedule: %w", err)
 				}

@@ -944,7 +980,7 @@ func (t *PieceDealInfo) UnmarshalCBOR(r io.Reader) error {
 			// t.KeepUnsealed (bool) (bool)
 		case "KeepUnsealed":

-			maj, extra, err = cbg.CborReadHeaderBuf(br, scratch)
+			maj, extra, err = cr.ReadHeader()
 			if err != nil {
 				return err
 			}
@@ -973,18 +1009,19 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 		_, err := w.Write(cbg.CborNull)
 		return err
 	}
-	if _, err := w.Write([]byte{162}); err != nil {
+
+	cw := cbg.NewCborWriter(w)
+
+	if _, err := cw.Write([]byte{162}); err != nil {
 		return err
 	}

-	scratch := make([]byte, 9)
-
 	// t.StartEpoch (abi.ChainEpoch) (int64)
 	if len("StartEpoch") > cbg.MaxLength {
 		return xerrors.Errorf("Value in field \"StartEpoch\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("StartEpoch"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("StartEpoch"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("StartEpoch")); err != nil {
@@ -992,11 +1029,11 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 	}

 	if t.StartEpoch >= 0 {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.StartEpoch)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.StartEpoch)); err != nil {
 			return err
 		}
 	} else {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajNegativeInt, uint64(-t.StartEpoch-1)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajNegativeInt, uint64(-t.StartEpoch-1)); err != nil {
 			return err
 		}
 	}
@@ -1006,7 +1043,7 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 		return xerrors.Errorf("Value in field \"EndEpoch\" was too long")
 	}

-	if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajTextString, uint64(len("EndEpoch"))); err != nil {
+	if err := cw.WriteMajorTypeHeader(cbg.MajTextString, uint64(len("EndEpoch"))); err != nil {
 		return err
 	}
 	if _, err := io.WriteString(w, string("EndEpoch")); err != nil {
@@ -1014,27 +1051,32 @@ func (t *DealSchedule) MarshalCBOR(w io.Writer) error {
 	}

 	if t.EndEpoch >= 0 {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajUnsignedInt, uint64(t.EndEpoch)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajUnsignedInt, uint64(t.EndEpoch)); err != nil {
 			return err
 		}
 	} else {
-		if err := cbg.WriteMajorTypeHeaderBuf(scratch, w, cbg.MajNegativeInt, uint64(-t.EndEpoch-1)); err != nil {
+		if err := cw.WriteMajorTypeHeader(cbg.MajNegativeInt, uint64(-t.EndEpoch-1)); err != nil {
 			return err
 		}
 	}
 	return nil
 }

-func (t *DealSchedule) UnmarshalCBOR(r io.Reader) error {
+func (t *DealSchedule) UnmarshalCBOR(r io.Reader) (err error) {
 	*t = DealSchedule{}

-	br := cbg.GetPeeker(r)
-	scratch := make([]byte, 8)
+	cr := cbg.NewCborReader(r)

-	maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+	maj, extra, err := cr.ReadHeader()
 	if err != nil {
 		return err
 	}
+	defer func() {
+		if err == io.EOF {
+			err = io.ErrUnexpectedEOF
+		}
+	}()
+
 	if maj != cbg.MajMap {
 		return fmt.Errorf("cbor input should be of type map")
 	}
@@ -1049,7 +1091,7 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) error {
 	for i := uint64(0); i < n; i++ {

 		{
-			sval, err := cbg.ReadStringBuf(br, scratch)
+			sval, err := cbg.ReadString(cr)
 			if err != nil {
 				return err
 			}
@@ -1061,7 +1103,7 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) error {
 		// t.StartEpoch (abi.ChainEpoch) (int64)
 		case "StartEpoch":
 			{
-				maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err := cr.ReadHeader()
 				var extraI int64
 				if err != nil {
 					return err
@@ -1087,7 +1129,7 @@ func (t *DealSchedule) UnmarshalCBOR(r io.Reader) error {
 			// t.EndEpoch (abi.ChainEpoch) (int64)
 		case "EndEpoch":
 			{
-				maj, extra, err := cbg.CborReadHeaderBuf(br, scratch)
+				maj, extra, err := cr.ReadHeader()
 				var extraI int64
 				if err != nil {
 					return err
@@ -28,6 +28,7 @@ import (
 	filestore "github.com/filecoin-project/go-fil-markets/filestore"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-jsonrpc/auth"
+	blocks "github.com/ipfs/go-block-format"
 	textselector "github.com/ipld/go-ipld-selector-text-lite"

 	"github.com/filecoin-project/go-state-types/abi"
@@ -40,7 +41,6 @@ import (
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/extern/sector-storage/sealtasks"
-	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	sealing "github.com/filecoin-project/lotus/extern/storage-sealing"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
@@ -96,6 +96,9 @@ func init() {
 	apiSelExample := api.Selector("Links/21/Hash/Links/42/Hash")
 	clientEvent := retrievalmarket.ClientEventDealAccepted

+	block := blocks.Block(&blocks.BasicBlock{})
+	ExampleValues[reflect.TypeOf(&block).Elem()] = block
+
 	addExample(bitfield.NewFromSet([]uint64{5}))
 	addExample(abi.RegisteredSealProof_StackedDrg32GiBV1_1)
 	addExample(abi.RegisteredPoStProof_StackedDrgWindow32GiBV1)
@@ -122,7 +125,7 @@ func init() {
 	addExample(api.FullAPIVersion1)
 	addExample(api.PCHInbound)
 	addExample(time.Minute)
-	addExample(graphsync.RequestID(4))
+	addExample(graphsync.NewRequestID())
 	addExample(datatransfer.TransferID(3))
 	addExample(datatransfer.Ongoing)
 	addExample(storeIDExample)
@@ -147,6 +150,10 @@ func init() {
 	addExample(map[string]api.MarketDeal{
 		"t026363": ExampleValue("init", reflect.TypeOf(api.MarketDeal{}), nil).(api.MarketDeal),
 	})
+	addExample(map[string]*api.MarketDeal{
+		"t026363": ExampleValue("init", reflect.TypeOf(&api.MarketDeal{}), nil).(*api.MarketDeal),
+	})
+
 	addExample(map[string]api.MarketBalance{
 		"t026363": ExampleValue("init", reflect.TypeOf(api.MarketBalance{}), nil).(api.MarketBalance),
 	})
@@ -199,10 +206,10 @@ func init() {
 		},
 	})
 	addExample(api.SectorState(sealing.Proving))
-	addExample(stores.ID("76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8"))
+	addExample(storiface.ID("76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8"))
 	addExample(storiface.FTUnsealed)
 	addExample(storiface.PathSealing)
-	addExample(map[stores.ID][]stores.Decl{
+	addExample(map[storiface.ID][]storiface.Decl{
 		"76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8": {
 			{
 				SectorID:       abi.SectorID{Miner: 1000, Number: 100},
@@ -210,7 +217,7 @@ func init() {
 			},
 		},
 	})
-	addExample(map[stores.ID]string{
+	addExample(map[storiface.ID]string{
 		"76f1988b-ef30-4d7e-b3ec-9a627f4ba5a8": "/data/path",
 	})
 	addExample(map[uuid.UUID][]storiface.WorkerJob{
@@ -8,29 +8,30 @@ import (
 	context "context"
 	json "encoding/json"
 	reflect "reflect"
+	time "time"

 	address "github.com/filecoin-project/go-address"
 	bitfield "github.com/filecoin-project/go-bitfield"
 	datatransfer "github.com/filecoin-project/go-data-transfer"
 	retrievalmarket "github.com/filecoin-project/go-fil-markets/retrievalmarket"
-	storagemarket "github.com/filecoin-project/go-fil-markets/storagemarket"
 	auth "github.com/filecoin-project/go-jsonrpc/auth"
 	abi "github.com/filecoin-project/go-state-types/abi"
 	big "github.com/filecoin-project/go-state-types/big"
+	miner "github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	paych "github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	crypto "github.com/filecoin-project/go-state-types/crypto"
 	dline "github.com/filecoin-project/go-state-types/dline"
 	network "github.com/filecoin-project/go-state-types/network"
 	api "github.com/filecoin-project/lotus/api"
 	apitypes "github.com/filecoin-project/lotus/api/types"
-	miner "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	miner0 "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	types "github.com/filecoin-project/lotus/chain/types"
 	alerting "github.com/filecoin-project/lotus/journal/alerting"
 	dtypes "github.com/filecoin-project/lotus/node/modules/dtypes"
 	imports "github.com/filecoin-project/lotus/node/repo/imports"
-	miner0 "github.com/filecoin-project/specs-actors/actors/builtin/miner"
-	paych "github.com/filecoin-project/specs-actors/actors/builtin/paych"
 	gomock "github.com/golang/mock/gomock"
 	uuid "github.com/google/uuid"
+	blocks "github.com/ipfs/go-block-format"
 	cid "github.com/ipfs/go-cid"
 	metrics "github.com/libp2p/go-libp2p-core/metrics"
 	network0 "github.com/libp2p/go-libp2p-core/network"
@@ -91,21 +92,6 @@ func (mr *MockFullNodeMockRecorder) AuthVerify(arg0, arg1 interface{}) *gomock.C
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AuthVerify", reflect.TypeOf((*MockFullNode)(nil).AuthVerify), arg0, arg1)
 }

-// BeaconGetEntry mocks base method.
-func (m *MockFullNode) BeaconGetEntry(arg0 context.Context, arg1 abi.ChainEpoch) (*types.BeaconEntry, error) {
-	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "BeaconGetEntry", arg0, arg1)
-	ret0, _ := ret[0].(*types.BeaconEntry)
-	ret1, _ := ret[1].(error)
-	return ret0, ret1
-}
-
-// BeaconGetEntry indicates an expected call of BeaconGetEntry.
-func (mr *MockFullNodeMockRecorder) BeaconGetEntry(arg0, arg1 interface{}) *gomock.Call {
-	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "BeaconGetEntry", reflect.TypeOf((*MockFullNode)(nil).BeaconGetEntry), arg0, arg1)
-}
-
 // ChainBlockstoreInfo mocks base method.
 func (m *MockFullNode) ChainBlockstoreInfo(arg0 context.Context) (map[string]interface{}, error) {
 	m.ctrl.T.Helper()
@@ -389,6 +375,20 @@ func (mr *MockFullNodeMockRecorder) ChainNotify(arg0 interface{}) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ChainNotify", reflect.TypeOf((*MockFullNode)(nil).ChainNotify), arg0)
 }

+// ChainPutObj mocks base method.
+func (m *MockFullNode) ChainPutObj(arg0 context.Context, arg1 blocks.Block) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ChainPutObj", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// ChainPutObj indicates an expected call of ChainPutObj.
+func (mr *MockFullNodeMockRecorder) ChainPutObj(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ChainPutObj", reflect.TypeOf((*MockFullNode)(nil).ChainPutObj), arg0, arg1)
+}
+
 // ChainReadObj mocks base method.
 func (m *MockFullNode) ChainReadObj(arg0 context.Context, arg1 cid.Cid) ([]byte, error) {
 	m.ctrl.T.Helper()
@@ -745,10 +745,10 @@ func (mr *MockFullNodeMockRecorder) ClientMinerQueryOffer(arg0, arg1, arg2, arg3
 }

 // ClientQueryAsk mocks base method.
-func (m *MockFullNode) ClientQueryAsk(arg0 context.Context, arg1 peer.ID, arg2 address.Address) (*storagemarket.StorageAsk, error) {
+func (m *MockFullNode) ClientQueryAsk(arg0 context.Context, arg1 peer.ID, arg2 address.Address) (*api.StorageAsk, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "ClientQueryAsk", arg0, arg1, arg2)
-	ret0, _ := ret[0].(*storagemarket.StorageAsk)
+	ret0, _ := ret[0].(*api.StorageAsk)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -1856,6 +1856,21 @@ func (mr *MockFullNodeMockRecorder) NetPeers(arg0 interface{}) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NetPeers", reflect.TypeOf((*MockFullNode)(nil).NetPeers), arg0)
 }

+// NetPing mocks base method.
+func (m *MockFullNode) NetPing(arg0 context.Context, arg1 peer.ID) (time.Duration, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "NetPing", arg0, arg1)
+	ret0, _ := ret[0].(time.Duration)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// NetPing indicates an expected call of NetPing.
+func (mr *MockFullNodeMockRecorder) NetPing(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NetPing", reflect.TypeOf((*MockFullNode)(nil).NetPing), arg0, arg1)
+}
+
 // NetProtectAdd mocks base method.
 func (m *MockFullNode) NetProtectAdd(arg0 context.Context, arg1 []peer.ID) error {
 	m.ctrl.T.Helper()
@@ -2018,19 +2033,34 @@ func (mr *MockFullNodeMockRecorder) PaychCollect(arg0, arg1 interface{}) *gomock
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PaychCollect", reflect.TypeOf((*MockFullNode)(nil).PaychCollect), arg0, arg1)
 }

-// PaychGet mocks base method.
-func (m *MockFullNode) PaychGet(arg0 context.Context, arg1, arg2 address.Address, arg3 big.Int) (*api.ChannelInfo, error) {
+// PaychFund mocks base method.
+func (m *MockFullNode) PaychFund(arg0 context.Context, arg1, arg2 address.Address, arg3 big.Int) (*api.ChannelInfo, error) {
 	m.ctrl.T.Helper()
-	ret := m.ctrl.Call(m, "PaychGet", arg0, arg1, arg2, arg3)
+	ret := m.ctrl.Call(m, "PaychFund", arg0, arg1, arg2, arg3)
+	ret0, _ := ret[0].(*api.ChannelInfo)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// PaychFund indicates an expected call of PaychFund.
+func (mr *MockFullNodeMockRecorder) PaychFund(arg0, arg1, arg2, arg3 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PaychFund", reflect.TypeOf((*MockFullNode)(nil).PaychFund), arg0, arg1, arg2, arg3)
+}
+
+// PaychGet mocks base method.
+func (m *MockFullNode) PaychGet(arg0 context.Context, arg1, arg2 address.Address, arg3 big.Int, arg4 api.PaychGetOpts) (*api.ChannelInfo, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "PaychGet", arg0, arg1, arg2, arg3, arg4)
 	ret0, _ := ret[0].(*api.ChannelInfo)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }

 // PaychGet indicates an expected call of PaychGet.
-func (mr *MockFullNodeMockRecorder) PaychGet(arg0, arg1, arg2, arg3 interface{}) *gomock.Call {
+func (mr *MockFullNodeMockRecorder) PaychGet(arg0, arg1, arg2, arg3, arg4 interface{}) *gomock.Call {
 	mr.mock.ctrl.T.Helper()
-	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PaychGet", reflect.TypeOf((*MockFullNode)(nil).PaychGet), arg0, arg1, arg2, arg3)
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "PaychGet", reflect.TypeOf((*MockFullNode)(nil).PaychGet), arg0, arg1, arg2, arg3, arg4)
 }

 // PaychGetWaitReady mocks base method.
@@ -2376,6 +2406,36 @@ func (mr *MockFullNodeMockRecorder) StateGetActor(arg0, arg1, arg2 interface{})
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateGetActor", reflect.TypeOf((*MockFullNode)(nil).StateGetActor), arg0, arg1, arg2)
 }

+// StateGetBeaconEntry mocks base method.
+func (m *MockFullNode) StateGetBeaconEntry(arg0 context.Context, arg1 abi.ChainEpoch) (*types.BeaconEntry, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StateGetBeaconEntry", arg0, arg1)
+	ret0, _ := ret[0].(*types.BeaconEntry)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StateGetBeaconEntry indicates an expected call of StateGetBeaconEntry.
+func (mr *MockFullNodeMockRecorder) StateGetBeaconEntry(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateGetBeaconEntry", reflect.TypeOf((*MockFullNode)(nil).StateGetBeaconEntry), arg0, arg1)
+}
+
+// StateGetNetworkParams mocks base method.
+func (m *MockFullNode) StateGetNetworkParams(arg0 context.Context) (*api.NetworkParams, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StateGetNetworkParams", arg0)
+	ret0, _ := ret[0].(*api.NetworkParams)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StateGetNetworkParams indicates an expected call of StateGetNetworkParams.
+func (mr *MockFullNodeMockRecorder) StateGetNetworkParams(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateGetNetworkParams", reflect.TypeOf((*MockFullNode)(nil).StateGetNetworkParams), arg0)
+}
+
 // StateGetRandomnessFromBeacon mocks base method.
 func (m *MockFullNode) StateGetRandomnessFromBeacon(arg0 context.Context, arg1 crypto.DomainSeparationTag, arg2 abi.ChainEpoch, arg3 []byte, arg4 types.TipSetKey) (abi.Randomness, error) {
 	m.ctrl.T.Helper()
@@ -2466,6 +2526,21 @@ func (mr *MockFullNodeMockRecorder) StateLookupID(arg0, arg1, arg2 interface{})
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateLookupID", reflect.TypeOf((*MockFullNode)(nil).StateLookupID), arg0, arg1, arg2)
 }

+// StateLookupRobustAddress mocks base method.
+func (m *MockFullNode) StateLookupRobustAddress(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (address.Address, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StateLookupRobustAddress", arg0, arg1, arg2)
+	ret0, _ := ret[0].(address.Address)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StateLookupRobustAddress indicates an expected call of StateLookupRobustAddress.
+func (mr *MockFullNodeMockRecorder) StateLookupRobustAddress(arg0, arg1, arg2 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateLookupRobustAddress", reflect.TypeOf((*MockFullNode)(nil).StateLookupRobustAddress), arg0, arg1, arg2)
+}
+
 // StateMarketBalance mocks base method.
 func (m *MockFullNode) StateMarketBalance(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (api.MarketBalance, error) {
 	m.ctrl.T.Helper()
@@ -2482,10 +2557,10 @@ func (mr *MockFullNodeMockRecorder) StateMarketBalance(arg0, arg1, arg2 interfac
 }

 // StateMarketDeals mocks base method.
-func (m *MockFullNode) StateMarketDeals(arg0 context.Context, arg1 types.TipSetKey) (map[string]api.MarketDeal, error) {
+func (m *MockFullNode) StateMarketDeals(arg0 context.Context, arg1 types.TipSetKey) (map[string]*api.MarketDeal, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMarketDeals", arg0, arg1)
-	ret0, _ := ret[0].(map[string]api.MarketDeal)
+	ret0, _ := ret[0].(map[string]*api.MarketDeal)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2587,10 +2662,10 @@ func (mr *MockFullNodeMockRecorder) StateMinerFaults(arg0, arg1, arg2 interface{
 }

 // StateMinerInfo mocks base method.
-func (m *MockFullNode) StateMinerInfo(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (miner.MinerInfo, error) {
+func (m *MockFullNode) StateMinerInfo(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (api.MinerInfo, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerInfo", arg0, arg1, arg2)
-	ret0, _ := ret[0].(miner.MinerInfo)
+	ret0, _ := ret[0].(api.MinerInfo)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2602,7 +2677,7 @@ func (mr *MockFullNodeMockRecorder) StateMinerInfo(arg0, arg1, arg2 interface{})
 }

 // StateMinerInitialPledgeCollateral mocks base method.
-func (m *MockFullNode) StateMinerInitialPledgeCollateral(arg0 context.Context, arg1 address.Address, arg2 miner0.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
+func (m *MockFullNode) StateMinerInitialPledgeCollateral(arg0 context.Context, arg1 address.Address, arg2 miner.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerInitialPledgeCollateral", arg0, arg1, arg2, arg3)
 	ret0, _ := ret[0].(big.Int)
@@ -2647,7 +2722,7 @@ func (mr *MockFullNodeMockRecorder) StateMinerPower(arg0, arg1, arg2 interface{}
 }

 // StateMinerPreCommitDepositForPower mocks base method.
-func (m *MockFullNode) StateMinerPreCommitDepositForPower(arg0 context.Context, arg1 address.Address, arg2 miner0.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
+func (m *MockFullNode) StateMinerPreCommitDepositForPower(arg0 context.Context, arg1 address.Address, arg2 miner.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerPreCommitDepositForPower", arg0, arg1, arg2, arg3)
 	ret0, _ := ret[0].(big.Int)
@@ -2812,10 +2887,10 @@ func (mr *MockFullNodeMockRecorder) StateSearchMsg(arg0, arg1, arg2, arg3, arg4
 }

 // StateSectorExpiration mocks base method.
-func (m *MockFullNode) StateSectorExpiration(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (m *MockFullNode) StateSectorExpiration(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner0.SectorExpiration, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateSectorExpiration", arg0, arg1, arg2, arg3)
-	ret0, _ := ret[0].(*miner.SectorExpiration)
+	ret0, _ := ret[0].(*miner0.SectorExpiration)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2842,10 +2917,10 @@ func (mr *MockFullNodeMockRecorder) StateSectorGetInfo(arg0, arg1, arg2, arg3 in
 }

 // StateSectorPartition mocks base method.
-func (m *MockFullNode) StateSectorPartition(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (m *MockFullNode) StateSectorPartition(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner0.SectorLocation, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateSectorPartition", arg0, arg1, arg2, arg3)
-	ret0, _ := ret[0].(*miner.SectorLocation)
+	ret0, _ := ret[0].(*miner0.SectorLocation)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -15,17 +15,18 @@ import (
 	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-jsonrpc/auth"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	"github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/filecoin-project/go-state-types/dline"
 	abinetwork "github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/go-state-types/proof"
 	apitypes "github.com/filecoin-project/lotus/api/types"
 	"github.com/filecoin-project/lotus/chain/actors/builtin"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
+	lminer "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/extern/sector-storage/fsutil"
 	"github.com/filecoin-project/lotus/extern/sector-storage/sealtasks"
-	"github.com/filecoin-project/lotus/extern/sector-storage/stores"
 	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
 	"github.com/filecoin-project/lotus/journal/alerting"
@@ -33,6 +34,7 @@ import (
 	"github.com/filecoin-project/lotus/node/repo/imports"
 	"github.com/filecoin-project/specs-storage/storage"
 	"github.com/google/uuid"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
 	metrics "github.com/libp2p/go-libp2p-core/metrics"
 	"github.com/libp2p/go-libp2p-core/network"
@@ -47,6 +49,8 @@ type ChainIOStruct struct {
 	Internal struct {
 		ChainHasObj func(p0 context.Context, p1 cid.Cid) (bool, error) ``

+		ChainPutObj func(p0 context.Context, p1 blocks.Block) error ``
+
 		ChainReadObj func(p0 context.Context, p1 cid.Cid) ([]byte, error) ``
 	}
 }
@@ -102,8 +106,6 @@ type FullNodeStruct struct {
 	NetStruct

 	Internal struct {
-		BeaconGetEntry func(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) `perm:"read"`
-
 		ChainBlockstoreInfo func(p0 context.Context) (map[string]interface{}, error) `perm:"read"`

 		ChainCheckBlockstore func(p0 context.Context) error `perm:"admin"`
@@ -142,6 +144,8 @@ type FullNodeStruct struct {

 		ChainNotify func(p0 context.Context) (<-chan []*HeadChange, error) `perm:"read"`

+		ChainPutObj func(p0 context.Context, p1 blocks.Block) error `perm:"admin"`
+
 		ChainReadObj func(p0 context.Context, p1 cid.Cid) ([]byte, error) `perm:"read"`

 		ChainSetHead func(p0 context.Context, p1 types.TipSetKey) error `perm:"admin"`
@@ -190,7 +194,7 @@ type FullNodeStruct struct {

 		ClientMinerQueryOffer func(p0 context.Context, p1 address.Address, p2 cid.Cid, p3 *cid.Cid) (QueryOffer, error) `perm:"read"`

-		ClientQueryAsk func(p0 context.Context, p1 peer.ID, p2 address.Address) (*storagemarket.StorageAsk, error) `perm:"read"`
+		ClientQueryAsk func(p0 context.Context, p1 peer.ID, p2 address.Address) (*StorageAsk, error) `perm:"read"`

 		ClientRemoveImport func(p0 context.Context, p1 imports.ID) error `perm:"admin"`

@@ -306,7 +310,9 @@ type FullNodeStruct struct {

 		PaychCollect func(p0 context.Context, p1 address.Address) (cid.Cid, error) `perm:"sign"`

-		PaychGet func(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) `perm:"sign"`
+		PaychFund func(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) `perm:"sign"`
+
+		PaychGet func(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt, p4 PaychGetOpts) (*ChannelInfo, error) `perm:"sign"`

 		PaychGetWaitReady func(p0 context.Context, p1 cid.Cid) (address.Address, error) `perm:"sign"`

@@ -350,6 +356,10 @@ type FullNodeStruct struct {

 		StateGetActor func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) `perm:"read"`

+		StateGetBeaconEntry func(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) `perm:"read"`
+
+		StateGetNetworkParams func(p0 context.Context) (*NetworkParams, error) `perm:"read"`
+
 		StateGetRandomnessFromBeacon func(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) `perm:"read"`

 		StateGetRandomnessFromTickets func(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) `perm:"read"`
@@ -362,9 +372,11 @@ type FullNodeStruct struct {

 		StateLookupID func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) `perm:"read"`

+		StateLookupRobustAddress func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) `perm:"read"`
+
 		StateMarketBalance func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MarketBalance, error) `perm:"read"`

-		StateMarketDeals func(p0 context.Context, p1 types.TipSetKey) (map[string]MarketDeal, error) `perm:"read"`
+		StateMarketDeals func(p0 context.Context, p1 types.TipSetKey) (map[string]*MarketDeal, error) `perm:"read"`

 		StateMarketParticipants func(p0 context.Context, p1 types.TipSetKey) (map[string]MarketBalance, error) `perm:"read"`

@@ -378,7 +390,7 @@ type FullNodeStruct struct {

 		StateMinerFaults func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (bitfield.BitField, error) `perm:"read"`

-		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) `perm:"read"`
+		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) `perm:"read"`

 		StateMinerInitialPledgeCollateral func(p0 context.Context, p1 address.Address, p2 miner.SectorPreCommitInfo, p3 types.TipSetKey) (types.BigInt, error) `perm:"read"`

@@ -408,11 +420,11 @@ type FullNodeStruct struct {

 		StateSearchMsg func(p0 context.Context, p1 types.TipSetKey, p2 cid.Cid, p3 abi.ChainEpoch, p4 bool) (*MsgLookup, error) `perm:"read"`

-		StateSectorExpiration func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) `perm:"read"`
+		StateSectorExpiration func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) `perm:"read"`

 		StateSectorGetInfo func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorOnChainInfo, error) `perm:"read"`

-		StateSectorPartition func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) `perm:"read"`
+		StateSectorPartition func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) `perm:"read"`

 		StateSectorPreCommitInfo func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error) `perm:"read"`

@@ -504,6 +516,8 @@ type GatewayStruct struct {

 		ChainNotify func(p0 context.Context) (<-chan []*HeadChange, error) ``

+		ChainPutObj func(p0 context.Context, p1 blocks.Block) error ``
+
 		ChainReadObj func(p0 context.Context, p1 cid.Cid) ([]byte, error) ``

 		GasEstimateMessageGas func(p0 context.Context, p1 *types.Message, p2 *MessageSendSpec, p3 types.TipSetKey) (*types.Message, error) ``
@@ -516,6 +530,8 @@ type GatewayStruct struct {

 		MsigGetVested func(p0 context.Context, p1 address.Address, p2 types.TipSetKey, p3 types.TipSetKey) (types.BigInt, error) ``

+		MsigGetVestingSchedule func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MsigVesting, error) ``
+
 		StateAccountKey func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) ``

 		StateDealProviderCollateralBounds func(p0 context.Context, p1 abi.PaddedPieceSize, p2 bool, p3 types.TipSetKey) (DealCollateralBounds, error) ``
@@ -530,7 +546,7 @@ type GatewayStruct struct {

 		StateMarketStorageDeal func(p0 context.Context, p1 abi.DealID, p2 types.TipSetKey) (*MarketDeal, error) ``

-		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) ``
+		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) ``

 		StateMinerPower func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*MinerPower, error) ``

@@ -593,6 +609,8 @@ type NetStruct struct {

 		NetPeers func(p0 context.Context) ([]peer.AddrInfo, error) `perm:"read"`

+		NetPing func(p0 context.Context, p1 peer.ID) (time.Duration, error) `perm:"read"`
+
 		NetProtectAdd func(p0 context.Context, p1 []peer.ID) error `perm:"admin"`

 		NetProtectList func(p0 context.Context) ([]peer.ID, error) `perm:"read"`
@@ -633,8 +651,12 @@ type StorageMinerStruct struct {

 		CheckProvable func(p0 context.Context, p1 abi.RegisteredPoStProof, p2 []storage.SectorRef, p3 bool) (map[abi.SectorNumber]string, error) `perm:"admin"`

+		ComputeDataCid func(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (abi.PieceInfo, error) `perm:"admin"`
+
 		ComputeProof func(p0 context.Context, p1 []builtin.ExtendedSectorInfo, p2 abi.PoStRandomness, p3 abi.ChainEpoch, p4 abinetwork.Version) ([]builtin.PoStProof, error) `perm:"read"`

+		ComputeWindowPoSt func(p0 context.Context, p1 uint64, p2 types.TipSetKey) ([]miner.SubmitWindowedPoStParams, error) `perm:"admin"`
+
 		CreateBackup func(p0 context.Context, p1 string) error `perm:"admin"`

 		DagstoreGC func(p0 context.Context) ([]DagstoreShardResult, error) `perm:"admin"`
@@ -647,8 +669,6 @@ type StorageMinerStruct struct {

 		DagstoreLookupPieces func(p0 context.Context, p1 cid.Cid) ([]DagstoreShardInfo, error) `perm:"admin"`

-		DagstorePieceIndexSize func(p0 context.Context) (int64, error) `perm:"admin"`
-
 		DagstoreRecoverShard func(p0 context.Context, p1 string) error `perm:"write"`

 		DealsConsiderOfflineRetrievalDeals func(p0 context.Context) (bool, error) `perm:"admin"`
@@ -665,7 +685,7 @@ type StorageMinerStruct struct {

 		DealsImportData func(p0 context.Context, p1 cid.Cid, p2 string) error `perm:"admin"`

-		DealsList func(p0 context.Context) ([]MarketDeal, error) `perm:"admin"`
+		DealsList func(p0 context.Context) ([]*MarketDeal, error) `perm:"admin"`

 		DealsPieceCidBlocklist func(p0 context.Context) ([]cid.Cid, error) `perm:"admin"`

@@ -703,7 +723,7 @@ type StorageMinerStruct struct {

 		MarketListDataTransfers func(p0 context.Context) ([]DataTransferChannel, error) `perm:"write"`

-		MarketListDeals func(p0 context.Context) ([]MarketDeal, error) `perm:"read"`
+		MarketListDeals func(p0 context.Context) ([]*MarketDeal, error) `perm:"read"`

 		MarketListIncompleteDeals func(p0 context.Context) ([]storagemarket.MinerDeal, error) `perm:"read"`

@@ -735,8 +755,12 @@ type StorageMinerStruct struct {

 		ReturnAddPiece func(p0 context.Context, p1 storiface.CallID, p2 abi.PieceInfo, p3 *storiface.CallError) error `perm:"admin"`

+		ReturnDataCid func(p0 context.Context, p1 storiface.CallID, p2 abi.PieceInfo, p3 *storiface.CallError) error `perm:"admin"`
+
 		ReturnFetch func(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error `perm:"admin"`

+		ReturnFinalizeReplicaUpdate func(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error `perm:"admin"`
+
 		ReturnFinalizeSector func(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error `perm:"admin"`

 		ReturnGenerateSectorKeyFromData func(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error `perm:"admin"`
@@ -769,6 +793,8 @@ type StorageMinerStruct struct {

 		SealingSchedDiag func(p0 context.Context, p1 bool) (interface{}, error) `perm:"admin"`

+		SectorAbortUpgrade func(p0 context.Context, p1 abi.SectorNumber) error `perm:"admin"`
+
 		SectorAddPieceToAny func(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data, p3 PieceDealInfo) (SectorOffset, error) `perm:"admin"`

 		SectorCommitFlush func(p0 context.Context) ([]sealiface.CommitBatchRes, error) `perm:"admin"`
@@ -817,29 +843,29 @@ type StorageMinerStruct struct {

 		StorageAddLocal func(p0 context.Context, p1 string) error `perm:"admin"`

-		StorageAttach func(p0 context.Context, p1 stores.StorageInfo, p2 fsutil.FsStat) error `perm:"admin"`
+		StorageAttach func(p0 context.Context, p1 storiface.StorageInfo, p2 fsutil.FsStat) error `perm:"admin"`

-		StorageBestAlloc func(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]stores.StorageInfo, error) `perm:"admin"`
+		StorageBestAlloc func(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]storiface.StorageInfo, error) `perm:"admin"`

-		StorageDeclareSector func(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error `perm:"admin"`
+		StorageDeclareSector func(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error `perm:"admin"`

-		StorageDropSector func(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error `perm:"admin"`
+		StorageDropSector func(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error `perm:"admin"`

-		StorageFindSector func(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]stores.SectorStorageInfo, error) `perm:"admin"`
+		StorageFindSector func(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]storiface.SectorStorageInfo, error) `perm:"admin"`

 		StorageGetLocks func(p0 context.Context) (storiface.SectorLocks, error) `perm:"admin"`

-		StorageInfo func(p0 context.Context, p1 stores.ID) (stores.StorageInfo, error) `perm:"admin"`
+		StorageInfo func(p0 context.Context, p1 storiface.ID) (storiface.StorageInfo, error) `perm:"admin"`

-		StorageList func(p0 context.Context) (map[stores.ID][]stores.Decl, error) `perm:"admin"`
+		StorageList func(p0 context.Context) (map[storiface.ID][]storiface.Decl, error) `perm:"admin"`

-		StorageLocal func(p0 context.Context) (map[stores.ID]string, error) `perm:"admin"`
+		StorageLocal func(p0 context.Context) (map[storiface.ID]string, error) `perm:"admin"`

 		StorageLock func(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 storiface.SectorFileType) error `perm:"admin"`

-		StorageReportHealth func(p0 context.Context, p1 stores.ID, p2 stores.HealthReport) error `perm:"admin"`
+		StorageReportHealth func(p0 context.Context, p1 storiface.ID, p2 storiface.HealthReport) error `perm:"admin"`

-		StorageStat func(p0 context.Context, p1 stores.ID) (fsutil.FsStat, error) `perm:"admin"`
+		StorageStat func(p0 context.Context, p1 storiface.ID) (fsutil.FsStat, error) `perm:"admin"`

 		StorageTryLock func(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 storiface.SectorFileType) (bool, error) `perm:"admin"`

@@ -882,19 +908,27 @@ type WorkerStruct struct {
 	Internal struct {
 		AddPiece func(p0 context.Context, p1 storage.SectorRef, p2 []abi.UnpaddedPieceSize, p3 abi.UnpaddedPieceSize, p4 storage.Data) (storiface.CallID, error) `perm:"admin"`

+		DataCid func(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (storiface.CallID, error) `perm:"admin"`
+
 		Enabled func(p0 context.Context) (bool, error) `perm:"admin"`

 		Fetch func(p0 context.Context, p1 storage.SectorRef, p2 storiface.SectorFileType, p3 storiface.PathType, p4 storiface.AcquireMode) (storiface.CallID, error) `perm:"admin"`

+		FinalizeReplicaUpdate func(p0 context.Context, p1 storage.SectorRef, p2 []storage.Range) (storiface.CallID, error) `perm:"admin"`
+
 		FinalizeSector func(p0 context.Context, p1 storage.SectorRef, p2 []storage.Range) (storiface.CallID, error) `perm:"admin"`

 		GenerateSectorKeyFromData func(p0 context.Context, p1 storage.SectorRef, p2 cid.Cid) (storiface.CallID, error) `perm:"admin"`

+		GenerateWindowPoSt func(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 int, p5 abi.PoStRandomness) (storiface.WindowPoStResult, error) `perm:"admin"`
+
+		GenerateWinningPoSt func(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 abi.PoStRandomness) ([]proof.PoStProof, error) `perm:"admin"`
+
 		Info func(p0 context.Context) (storiface.WorkerInfo, error) `perm:"admin"`

 		MoveStorage func(p0 context.Context, p1 storage.SectorRef, p2 storiface.SectorFileType) (storiface.CallID, error) `perm:"admin"`

-		Paths func(p0 context.Context) ([]stores.StoragePath, error) `perm:"admin"`
+		Paths func(p0 context.Context) ([]storiface.StoragePath, error) `perm:"admin"`

 		ProcessSession func(p0 context.Context) (uuid.UUID, error) `perm:"admin"`

@@ -950,6 +984,17 @@ func (s *ChainIOStub) ChainHasObj(p0 context.Context, p1 cid.Cid) (bool, error)
 	return false, ErrNotSupported
 }

+func (s *ChainIOStruct) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	if s.Internal.ChainPutObj == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ChainPutObj(p0, p1)
+}
+
+func (s *ChainIOStub) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	return ErrNotSupported
+}
+
 func (s *ChainIOStruct) ChainReadObj(p0 context.Context, p1 cid.Cid) ([]byte, error) {
 	if s.Internal.ChainReadObj == nil {
 		return *new([]byte), ErrNotSupported
@@ -1071,17 +1116,6 @@ func (s *CommonStub) Version(p0 context.Context) (APIVersion, error) {
 	return *new(APIVersion), ErrNotSupported
 }

-func (s *FullNodeStruct) BeaconGetEntry(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) {
-	if s.Internal.BeaconGetEntry == nil {
-		return nil, ErrNotSupported
-	}
-	return s.Internal.BeaconGetEntry(p0, p1)
-}
-
-func (s *FullNodeStub) BeaconGetEntry(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) {
-	return nil, ErrNotSupported
-}
-
 func (s *FullNodeStruct) ChainBlockstoreInfo(p0 context.Context) (map[string]interface{}, error) {
 	if s.Internal.ChainBlockstoreInfo == nil {
 		return *new(map[string]interface{}), ErrNotSupported
@@ -1291,6 +1325,17 @@ func (s *FullNodeStub) ChainNotify(p0 context.Context) (<-chan []*HeadChange, er
 	return nil, ErrNotSupported
 }

+func (s *FullNodeStruct) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	if s.Internal.ChainPutObj == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ChainPutObj(p0, p1)
+}
+
+func (s *FullNodeStub) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	return ErrNotSupported
+}
+
 func (s *FullNodeStruct) ChainReadObj(p0 context.Context, p1 cid.Cid) ([]byte, error) {
 	if s.Internal.ChainReadObj == nil {
 		return *new([]byte), ErrNotSupported
@@ -1555,14 +1600,14 @@ func (s *FullNodeStub) ClientMinerQueryOffer(p0 context.Context, p1 address.Addr
 	return *new(QueryOffer), ErrNotSupported
 }

-func (s *FullNodeStruct) ClientQueryAsk(p0 context.Context, p1 peer.ID, p2 address.Address) (*storagemarket.StorageAsk, error) {
+func (s *FullNodeStruct) ClientQueryAsk(p0 context.Context, p1 peer.ID, p2 address.Address) (*StorageAsk, error) {
 	if s.Internal.ClientQueryAsk == nil {
 		return nil, ErrNotSupported
 	}
 	return s.Internal.ClientQueryAsk(p0, p1, p2)
 }

-func (s *FullNodeStub) ClientQueryAsk(p0 context.Context, p1 peer.ID, p2 address.Address) (*storagemarket.StorageAsk, error) {
+func (s *FullNodeStub) ClientQueryAsk(p0 context.Context, p1 peer.ID, p2 address.Address) (*StorageAsk, error) {
 	return nil, ErrNotSupported
 }

@@ -2193,14 +2238,25 @@ func (s *FullNodeStub) PaychCollect(p0 context.Context, p1 address.Address) (cid
 	return *new(cid.Cid), ErrNotSupported
 }

-func (s *FullNodeStruct) PaychGet(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) {
+func (s *FullNodeStruct) PaychFund(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) {
+	if s.Internal.PaychFund == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.PaychFund(p0, p1, p2, p3)
+}
+
+func (s *FullNodeStub) PaychFund(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) {
+	return nil, ErrNotSupported
+}
+
+func (s *FullNodeStruct) PaychGet(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt, p4 PaychGetOpts) (*ChannelInfo, error) {
 	if s.Internal.PaychGet == nil {
 		return nil, ErrNotSupported
 	}
-	return s.Internal.PaychGet(p0, p1, p2, p3)
+	return s.Internal.PaychGet(p0, p1, p2, p3, p4)
 }

-func (s *FullNodeStub) PaychGet(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt) (*ChannelInfo, error) {
+func (s *FullNodeStub) PaychGet(p0 context.Context, p1 address.Address, p2 address.Address, p3 types.BigInt, p4 PaychGetOpts) (*ChannelInfo, error) {
 	return nil, ErrNotSupported
 }

@@ -2435,6 +2491,28 @@ func (s *FullNodeStub) StateGetActor(p0 context.Context, p1 address.Address, p2
 	return nil, ErrNotSupported
 }

+func (s *FullNodeStruct) StateGetBeaconEntry(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) {
+	if s.Internal.StateGetBeaconEntry == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateGetBeaconEntry(p0, p1)
+}
+
+func (s *FullNodeStub) StateGetBeaconEntry(p0 context.Context, p1 abi.ChainEpoch) (*types.BeaconEntry, error) {
+	return nil, ErrNotSupported
+}
+
+func (s *FullNodeStruct) StateGetNetworkParams(p0 context.Context) (*NetworkParams, error) {
+	if s.Internal.StateGetNetworkParams == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateGetNetworkParams(p0)
+}
+
+func (s *FullNodeStub) StateGetNetworkParams(p0 context.Context) (*NetworkParams, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *FullNodeStruct) StateGetRandomnessFromBeacon(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) {
 	if s.Internal.StateGetRandomnessFromBeacon == nil {
 		return *new(abi.Randomness), ErrNotSupported
@@ -2501,6 +2579,17 @@ func (s *FullNodeStub) StateLookupID(p0 context.Context, p1 address.Address, p2
 	return *new(address.Address), ErrNotSupported
 }

+func (s *FullNodeStruct) StateLookupRobustAddress(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) {
+	if s.Internal.StateLookupRobustAddress == nil {
+		return *new(address.Address), ErrNotSupported
+	}
+	return s.Internal.StateLookupRobustAddress(p0, p1, p2)
+}
+
+func (s *FullNodeStub) StateLookupRobustAddress(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) {
+	return *new(address.Address), ErrNotSupported
+}
+
 func (s *FullNodeStruct) StateMarketBalance(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MarketBalance, error) {
 	if s.Internal.StateMarketBalance == nil {
 		return *new(MarketBalance), ErrNotSupported
@@ -2512,15 +2601,15 @@ func (s *FullNodeStub) StateMarketBalance(p0 context.Context, p1 address.Address
 	return *new(MarketBalance), ErrNotSupported
 }

-func (s *FullNodeStruct) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]MarketDeal, error) {
+func (s *FullNodeStruct) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]*MarketDeal, error) {
 	if s.Internal.StateMarketDeals == nil {
-		return *new(map[string]MarketDeal), ErrNotSupported
+		return *new(map[string]*MarketDeal), ErrNotSupported
 	}
 	return s.Internal.StateMarketDeals(p0, p1)
 }

-func (s *FullNodeStub) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]MarketDeal, error) {
-	return *new(map[string]MarketDeal), ErrNotSupported
+func (s *FullNodeStub) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]*MarketDeal, error) {
+	return *new(map[string]*MarketDeal), ErrNotSupported
 }

 func (s *FullNodeStruct) StateMarketParticipants(p0 context.Context, p1 types.TipSetKey) (map[string]MarketBalance, error) {
@@ -2589,15 +2678,15 @@ func (s *FullNodeStub) StateMinerFaults(p0 context.Context, p1 address.Address,
 	return *new(bitfield.BitField), ErrNotSupported
 }

-func (s *FullNodeStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
+func (s *FullNodeStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) {
 	if s.Internal.StateMinerInfo == nil {
-		return *new(miner.MinerInfo), ErrNotSupported
+		return *new(MinerInfo), ErrNotSupported
 	}
 	return s.Internal.StateMinerInfo(p0, p1, p2)
 }

-func (s *FullNodeStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
-	return *new(miner.MinerInfo), ErrNotSupported
+func (s *FullNodeStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) {
+	return *new(MinerInfo), ErrNotSupported
 }

 func (s *FullNodeStruct) StateMinerInitialPledgeCollateral(p0 context.Context, p1 address.Address, p2 miner.SectorPreCommitInfo, p3 types.TipSetKey) (types.BigInt, error) {
@@ -2754,14 +2843,14 @@ func (s *FullNodeStub) StateSearchMsg(p0 context.Context, p1 types.TipSetKey, p2
 	return nil, ErrNotSupported
 }

-func (s *FullNodeStruct) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (s *FullNodeStruct) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) {
 	if s.Internal.StateSectorExpiration == nil {
 		return nil, ErrNotSupported
 	}
 	return s.Internal.StateSectorExpiration(p0, p1, p2, p3)
 }

-func (s *FullNodeStub) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (s *FullNodeStub) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) {
 	return nil, ErrNotSupported
 }

@@ -2776,14 +2865,14 @@ func (s *FullNodeStub) StateSectorGetInfo(p0 context.Context, p1 address.Address
 	return nil, ErrNotSupported
 }

-func (s *FullNodeStruct) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (s *FullNodeStruct) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) {
 	if s.Internal.StateSectorPartition == nil {
 		return nil, ErrNotSupported
 	}
 	return s.Internal.StateSectorPartition(p0, p1, p2, p3)
 }

-func (s *FullNodeStub) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (s *FullNodeStub) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) {
 	return nil, ErrNotSupported
 }

@@ -3227,6 +3316,17 @@ func (s *GatewayStub) ChainNotify(p0 context.Context) (<-chan []*HeadChange, err
 	return nil, ErrNotSupported
 }

+func (s *GatewayStruct) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	if s.Internal.ChainPutObj == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ChainPutObj(p0, p1)
+}
+
+func (s *GatewayStub) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	return ErrNotSupported
+}
+
 func (s *GatewayStruct) ChainReadObj(p0 context.Context, p1 cid.Cid) ([]byte, error) {
 	if s.Internal.ChainReadObj == nil {
 		return *new([]byte), ErrNotSupported
@@ -3293,6 +3393,17 @@ func (s *GatewayStub) MsigGetVested(p0 context.Context, p1 address.Address, p2 t
 	return *new(types.BigInt), ErrNotSupported
 }

+func (s *GatewayStruct) MsigGetVestingSchedule(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MsigVesting, error) {
+	if s.Internal.MsigGetVestingSchedule == nil {
+		return *new(MsigVesting), ErrNotSupported
+	}
+	return s.Internal.MsigGetVestingSchedule(p0, p1, p2)
+}
+
+func (s *GatewayStub) MsigGetVestingSchedule(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MsigVesting, error) {
+	return *new(MsigVesting), ErrNotSupported
+}
+
 func (s *GatewayStruct) StateAccountKey(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (address.Address, error) {
 	if s.Internal.StateAccountKey == nil {
 		return *new(address.Address), ErrNotSupported
@@ -3370,15 +3481,15 @@ func (s *GatewayStub) StateMarketStorageDeal(p0 context.Context, p1 abi.DealID,
 	return nil, ErrNotSupported
 }

-func (s *GatewayStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
+func (s *GatewayStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) {
 	if s.Internal.StateMinerInfo == nil {
-		return *new(miner.MinerInfo), ErrNotSupported
+		return *new(MinerInfo), ErrNotSupported
 	}
 	return s.Internal.StateMinerInfo(p0, p1, p2)
 }

-func (s *GatewayStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
-	return *new(miner.MinerInfo), ErrNotSupported
+func (s *GatewayStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (MinerInfo, error) {
+	return *new(MinerInfo), ErrNotSupported
 }

 func (s *GatewayStruct) StateMinerPower(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*MinerPower, error) {
@@ -3678,6 +3789,17 @@ func (s *NetStub) NetPeers(p0 context.Context) ([]peer.AddrInfo, error) {
 	return *new([]peer.AddrInfo), ErrNotSupported
 }

+func (s *NetStruct) NetPing(p0 context.Context, p1 peer.ID) (time.Duration, error) {
+	if s.Internal.NetPing == nil {
+		return *new(time.Duration), ErrNotSupported
+	}
+	return s.Internal.NetPing(p0, p1)
+}
+
+func (s *NetStub) NetPing(p0 context.Context, p1 peer.ID) (time.Duration, error) {
+	return *new(time.Duration), ErrNotSupported
+}
+
 func (s *NetStruct) NetProtectAdd(p0 context.Context, p1 []peer.ID) error {
 	if s.Internal.NetProtectAdd == nil {
 		return ErrNotSupported
@@ -3799,6 +3921,17 @@ func (s *StorageMinerStub) CheckProvable(p0 context.Context, p1 abi.RegisteredPo
 	return *new(map[abi.SectorNumber]string), ErrNotSupported
 }

+func (s *StorageMinerStruct) ComputeDataCid(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (abi.PieceInfo, error) {
+	if s.Internal.ComputeDataCid == nil {
+		return *new(abi.PieceInfo), ErrNotSupported
+	}
+	return s.Internal.ComputeDataCid(p0, p1, p2)
+}
+
+func (s *StorageMinerStub) ComputeDataCid(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (abi.PieceInfo, error) {
+	return *new(abi.PieceInfo), ErrNotSupported
+}
+
 func (s *StorageMinerStruct) ComputeProof(p0 context.Context, p1 []builtin.ExtendedSectorInfo, p2 abi.PoStRandomness, p3 abi.ChainEpoch, p4 abinetwork.Version) ([]builtin.PoStProof, error) {
 	if s.Internal.ComputeProof == nil {
 		return *new([]builtin.PoStProof), ErrNotSupported
@@ -3810,6 +3943,17 @@ func (s *StorageMinerStub) ComputeProof(p0 context.Context, p1 []builtin.Extende
 	return *new([]builtin.PoStProof), ErrNotSupported
 }

+func (s *StorageMinerStruct) ComputeWindowPoSt(p0 context.Context, p1 uint64, p2 types.TipSetKey) ([]miner.SubmitWindowedPoStParams, error) {
+	if s.Internal.ComputeWindowPoSt == nil {
+		return *new([]miner.SubmitWindowedPoStParams), ErrNotSupported
+	}
+	return s.Internal.ComputeWindowPoSt(p0, p1, p2)
+}
+
+func (s *StorageMinerStub) ComputeWindowPoSt(p0 context.Context, p1 uint64, p2 types.TipSetKey) ([]miner.SubmitWindowedPoStParams, error) {
+	return *new([]miner.SubmitWindowedPoStParams), ErrNotSupported
+}
+
 func (s *StorageMinerStruct) CreateBackup(p0 context.Context, p1 string) error {
 	if s.Internal.CreateBackup == nil {
 		return ErrNotSupported
@@ -3876,17 +4020,6 @@ func (s *StorageMinerStub) DagstoreLookupPieces(p0 context.Context, p1 cid.Cid)
 	return *new([]DagstoreShardInfo), ErrNotSupported
 }

-func (s *StorageMinerStruct) DagstorePieceIndexSize(p0 context.Context) (int64, error) {
-	if s.Internal.DagstorePieceIndexSize == nil {
-		return 0, ErrNotSupported
-	}
-	return s.Internal.DagstorePieceIndexSize(p0)
-}
-
-func (s *StorageMinerStub) DagstorePieceIndexSize(p0 context.Context) (int64, error) {
-	return 0, ErrNotSupported
-}
-
 func (s *StorageMinerStruct) DagstoreRecoverShard(p0 context.Context, p1 string) error {
 	if s.Internal.DagstoreRecoverShard == nil {
 		return ErrNotSupported
@@ -3975,15 +4108,15 @@ func (s *StorageMinerStub) DealsImportData(p0 context.Context, p1 cid.Cid, p2 st
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) DealsList(p0 context.Context) ([]MarketDeal, error) {
+func (s *StorageMinerStruct) DealsList(p0 context.Context) ([]*MarketDeal, error) {
 	if s.Internal.DealsList == nil {
-		return *new([]MarketDeal), ErrNotSupported
+		return *new([]*MarketDeal), ErrNotSupported
 	}
 	return s.Internal.DealsList(p0)
 }

-func (s *StorageMinerStub) DealsList(p0 context.Context) ([]MarketDeal, error) {
-	return *new([]MarketDeal), ErrNotSupported
+func (s *StorageMinerStub) DealsList(p0 context.Context) ([]*MarketDeal, error) {
+	return *new([]*MarketDeal), ErrNotSupported
 }

 func (s *StorageMinerStruct) DealsPieceCidBlocklist(p0 context.Context) ([]cid.Cid, error) {
@@ -4184,15 +4317,15 @@ func (s *StorageMinerStub) MarketListDataTransfers(p0 context.Context) ([]DataTr
 	return *new([]DataTransferChannel), ErrNotSupported
 }

-func (s *StorageMinerStruct) MarketListDeals(p0 context.Context) ([]MarketDeal, error) {
+func (s *StorageMinerStruct) MarketListDeals(p0 context.Context) ([]*MarketDeal, error) {
 	if s.Internal.MarketListDeals == nil {
-		return *new([]MarketDeal), ErrNotSupported
+		return *new([]*MarketDeal), ErrNotSupported
 	}
 	return s.Internal.MarketListDeals(p0)
 }

-func (s *StorageMinerStub) MarketListDeals(p0 context.Context) ([]MarketDeal, error) {
-	return *new([]MarketDeal), ErrNotSupported
+func (s *StorageMinerStub) MarketListDeals(p0 context.Context) ([]*MarketDeal, error) {
+	return *new([]*MarketDeal), ErrNotSupported
 }

 func (s *StorageMinerStruct) MarketListIncompleteDeals(p0 context.Context) ([]storagemarket.MinerDeal, error) {
@@ -4360,6 +4493,17 @@ func (s *StorageMinerStub) ReturnAddPiece(p0 context.Context, p1 storiface.CallI
 	return ErrNotSupported
 }

+func (s *StorageMinerStruct) ReturnDataCid(p0 context.Context, p1 storiface.CallID, p2 abi.PieceInfo, p3 *storiface.CallError) error {
+	if s.Internal.ReturnDataCid == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ReturnDataCid(p0, p1, p2, p3)
+}
+
+func (s *StorageMinerStub) ReturnDataCid(p0 context.Context, p1 storiface.CallID, p2 abi.PieceInfo, p3 *storiface.CallError) error {
+	return ErrNotSupported
+}
+
 func (s *StorageMinerStruct) ReturnFetch(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error {
 	if s.Internal.ReturnFetch == nil {
 		return ErrNotSupported
@@ -4371,6 +4515,17 @@ func (s *StorageMinerStub) ReturnFetch(p0 context.Context, p1 storiface.CallID,
 	return ErrNotSupported
 }

+func (s *StorageMinerStruct) ReturnFinalizeReplicaUpdate(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error {
+	if s.Internal.ReturnFinalizeReplicaUpdate == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ReturnFinalizeReplicaUpdate(p0, p1, p2)
+}
+
+func (s *StorageMinerStub) ReturnFinalizeReplicaUpdate(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error {
+	return ErrNotSupported
+}
+
 func (s *StorageMinerStruct) ReturnFinalizeSector(p0 context.Context, p1 storiface.CallID, p2 *storiface.CallError) error {
 	if s.Internal.ReturnFinalizeSector == nil {
 		return ErrNotSupported
@@ -4547,6 +4702,17 @@ func (s *StorageMinerStub) SealingSchedDiag(p0 context.Context, p1 bool) (interf
 	return nil, ErrNotSupported
 }

+func (s *StorageMinerStruct) SectorAbortUpgrade(p0 context.Context, p1 abi.SectorNumber) error {
+	if s.Internal.SectorAbortUpgrade == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.SectorAbortUpgrade(p0, p1)
+}
+
+func (s *StorageMinerStub) SectorAbortUpgrade(p0 context.Context, p1 abi.SectorNumber) error {
+	return ErrNotSupported
+}
+
 func (s *StorageMinerStruct) SectorAddPieceToAny(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data, p3 PieceDealInfo) (SectorOffset, error) {
 	if s.Internal.SectorAddPieceToAny == nil {
 		return *new(SectorOffset), ErrNotSupported
@@ -4811,59 +4977,59 @@ func (s *StorageMinerStub) StorageAddLocal(p0 context.Context, p1 string) error
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageAttach(p0 context.Context, p1 stores.StorageInfo, p2 fsutil.FsStat) error {
+func (s *StorageMinerStruct) StorageAttach(p0 context.Context, p1 storiface.StorageInfo, p2 fsutil.FsStat) error {
 	if s.Internal.StorageAttach == nil {
 		return ErrNotSupported
 	}
 	return s.Internal.StorageAttach(p0, p1, p2)
 }

-func (s *StorageMinerStub) StorageAttach(p0 context.Context, p1 stores.StorageInfo, p2 fsutil.FsStat) error {
+func (s *StorageMinerStub) StorageAttach(p0 context.Context, p1 storiface.StorageInfo, p2 fsutil.FsStat) error {
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageBestAlloc(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]stores.StorageInfo, error) {
+func (s *StorageMinerStruct) StorageBestAlloc(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]storiface.StorageInfo, error) {
 	if s.Internal.StorageBestAlloc == nil {
-		return *new([]stores.StorageInfo), ErrNotSupported
+		return *new([]storiface.StorageInfo), ErrNotSupported
 	}
 	return s.Internal.StorageBestAlloc(p0, p1, p2, p3)
 }

-func (s *StorageMinerStub) StorageBestAlloc(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]stores.StorageInfo, error) {
-	return *new([]stores.StorageInfo), ErrNotSupported
+func (s *StorageMinerStub) StorageBestAlloc(p0 context.Context, p1 storiface.SectorFileType, p2 abi.SectorSize, p3 storiface.PathType) ([]storiface.StorageInfo, error) {
+	return *new([]storiface.StorageInfo), ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageDeclareSector(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error {
+func (s *StorageMinerStruct) StorageDeclareSector(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error {
 	if s.Internal.StorageDeclareSector == nil {
 		return ErrNotSupported
 	}
 	return s.Internal.StorageDeclareSector(p0, p1, p2, p3, p4)
 }

-func (s *StorageMinerStub) StorageDeclareSector(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error {
+func (s *StorageMinerStub) StorageDeclareSector(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType, p4 bool) error {
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageDropSector(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error {
+func (s *StorageMinerStruct) StorageDropSector(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error {
 	if s.Internal.StorageDropSector == nil {
 		return ErrNotSupported
 	}
 	return s.Internal.StorageDropSector(p0, p1, p2, p3)
 }

-func (s *StorageMinerStub) StorageDropSector(p0 context.Context, p1 stores.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error {
+func (s *StorageMinerStub) StorageDropSector(p0 context.Context, p1 storiface.ID, p2 abi.SectorID, p3 storiface.SectorFileType) error {
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageFindSector(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]stores.SectorStorageInfo, error) {
+func (s *StorageMinerStruct) StorageFindSector(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]storiface.SectorStorageInfo, error) {
 	if s.Internal.StorageFindSector == nil {
-		return *new([]stores.SectorStorageInfo), ErrNotSupported
+		return *new([]storiface.SectorStorageInfo), ErrNotSupported
 	}
 	return s.Internal.StorageFindSector(p0, p1, p2, p3, p4)
 }

-func (s *StorageMinerStub) StorageFindSector(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]stores.SectorStorageInfo, error) {
-	return *new([]stores.SectorStorageInfo), ErrNotSupported
+func (s *StorageMinerStub) StorageFindSector(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 abi.SectorSize, p4 bool) ([]storiface.SectorStorageInfo, error) {
+	return *new([]storiface.SectorStorageInfo), ErrNotSupported
 }

 func (s *StorageMinerStruct) StorageGetLocks(p0 context.Context) (storiface.SectorLocks, error) {
@@ -4877,37 +5043,37 @@ func (s *StorageMinerStub) StorageGetLocks(p0 context.Context) (storiface.Sector
 	return *new(storiface.SectorLocks), ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageInfo(p0 context.Context, p1 stores.ID) (stores.StorageInfo, error) {
+func (s *StorageMinerStruct) StorageInfo(p0 context.Context, p1 storiface.ID) (storiface.StorageInfo, error) {
 	if s.Internal.StorageInfo == nil {
-		return *new(stores.StorageInfo), ErrNotSupported
+		return *new(storiface.StorageInfo), ErrNotSupported
 	}
 	return s.Internal.StorageInfo(p0, p1)
 }

-func (s *StorageMinerStub) StorageInfo(p0 context.Context, p1 stores.ID) (stores.StorageInfo, error) {
-	return *new(stores.StorageInfo), ErrNotSupported
+func (s *StorageMinerStub) StorageInfo(p0 context.Context, p1 storiface.ID) (storiface.StorageInfo, error) {
+	return *new(storiface.StorageInfo), ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageList(p0 context.Context) (map[stores.ID][]stores.Decl, error) {
+func (s *StorageMinerStruct) StorageList(p0 context.Context) (map[storiface.ID][]storiface.Decl, error) {
 	if s.Internal.StorageList == nil {
-		return *new(map[stores.ID][]stores.Decl), ErrNotSupported
+		return *new(map[storiface.ID][]storiface.Decl), ErrNotSupported
 	}
 	return s.Internal.StorageList(p0)
 }

-func (s *StorageMinerStub) StorageList(p0 context.Context) (map[stores.ID][]stores.Decl, error) {
-	return *new(map[stores.ID][]stores.Decl), ErrNotSupported
+func (s *StorageMinerStub) StorageList(p0 context.Context) (map[storiface.ID][]storiface.Decl, error) {
+	return *new(map[storiface.ID][]storiface.Decl), ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageLocal(p0 context.Context) (map[stores.ID]string, error) {
+func (s *StorageMinerStruct) StorageLocal(p0 context.Context) (map[storiface.ID]string, error) {
 	if s.Internal.StorageLocal == nil {
-		return *new(map[stores.ID]string), ErrNotSupported
+		return *new(map[storiface.ID]string), ErrNotSupported
 	}
 	return s.Internal.StorageLocal(p0)
 }

-func (s *StorageMinerStub) StorageLocal(p0 context.Context) (map[stores.ID]string, error) {
-	return *new(map[stores.ID]string), ErrNotSupported
+func (s *StorageMinerStub) StorageLocal(p0 context.Context) (map[storiface.ID]string, error) {
+	return *new(map[storiface.ID]string), ErrNotSupported
 }

 func (s *StorageMinerStruct) StorageLock(p0 context.Context, p1 abi.SectorID, p2 storiface.SectorFileType, p3 storiface.SectorFileType) error {
@@ -4921,25 +5087,25 @@ func (s *StorageMinerStub) StorageLock(p0 context.Context, p1 abi.SectorID, p2 s
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageReportHealth(p0 context.Context, p1 stores.ID, p2 stores.HealthReport) error {
+func (s *StorageMinerStruct) StorageReportHealth(p0 context.Context, p1 storiface.ID, p2 storiface.HealthReport) error {
 	if s.Internal.StorageReportHealth == nil {
 		return ErrNotSupported
 	}
 	return s.Internal.StorageReportHealth(p0, p1, p2)
 }

-func (s *StorageMinerStub) StorageReportHealth(p0 context.Context, p1 stores.ID, p2 stores.HealthReport) error {
+func (s *StorageMinerStub) StorageReportHealth(p0 context.Context, p1 storiface.ID, p2 storiface.HealthReport) error {
 	return ErrNotSupported
 }

-func (s *StorageMinerStruct) StorageStat(p0 context.Context, p1 stores.ID) (fsutil.FsStat, error) {
+func (s *StorageMinerStruct) StorageStat(p0 context.Context, p1 storiface.ID) (fsutil.FsStat, error) {
 	if s.Internal.StorageStat == nil {
 		return *new(fsutil.FsStat), ErrNotSupported
 	}
 	return s.Internal.StorageStat(p0, p1)
 }

-func (s *StorageMinerStub) StorageStat(p0 context.Context, p1 stores.ID) (fsutil.FsStat, error) {
+func (s *StorageMinerStub) StorageStat(p0 context.Context, p1 storiface.ID) (fsutil.FsStat, error) {
 	return *new(fsutil.FsStat), ErrNotSupported
 }

@@ -5075,6 +5241,17 @@ func (s *WorkerStub) AddPiece(p0 context.Context, p1 storage.SectorRef, p2 []abi
 	return *new(storiface.CallID), ErrNotSupported
 }

+func (s *WorkerStruct) DataCid(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (storiface.CallID, error) {
+	if s.Internal.DataCid == nil {
+		return *new(storiface.CallID), ErrNotSupported
+	}
+	return s.Internal.DataCid(p0, p1, p2)
+}
+
+func (s *WorkerStub) DataCid(p0 context.Context, p1 abi.UnpaddedPieceSize, p2 storage.Data) (storiface.CallID, error) {
+	return *new(storiface.CallID), ErrNotSupported
+}
+
 func (s *WorkerStruct) Enabled(p0 context.Context) (bool, error) {
 	if s.Internal.Enabled == nil {
 		return false, ErrNotSupported
@@ -5097,6 +5274,17 @@ func (s *WorkerStub) Fetch(p0 context.Context, p1 storage.SectorRef, p2 storifac
 	return *new(storiface.CallID), ErrNotSupported
 }

+func (s *WorkerStruct) FinalizeReplicaUpdate(p0 context.Context, p1 storage.SectorRef, p2 []storage.Range) (storiface.CallID, error) {
+	if s.Internal.FinalizeReplicaUpdate == nil {
+		return *new(storiface.CallID), ErrNotSupported
+	}
+	return s.Internal.FinalizeReplicaUpdate(p0, p1, p2)
+}
+
+func (s *WorkerStub) FinalizeReplicaUpdate(p0 context.Context, p1 storage.SectorRef, p2 []storage.Range) (storiface.CallID, error) {
+	return *new(storiface.CallID), ErrNotSupported
+}
+
 func (s *WorkerStruct) FinalizeSector(p0 context.Context, p1 storage.SectorRef, p2 []storage.Range) (storiface.CallID, error) {
 	if s.Internal.FinalizeSector == nil {
 		return *new(storiface.CallID), ErrNotSupported
@@ -5119,6 +5307,28 @@ func (s *WorkerStub) GenerateSectorKeyFromData(p0 context.Context, p1 storage.Se
 	return *new(storiface.CallID), ErrNotSupported
 }

+func (s *WorkerStruct) GenerateWindowPoSt(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 int, p5 abi.PoStRandomness) (storiface.WindowPoStResult, error) {
+	if s.Internal.GenerateWindowPoSt == nil {
+		return *new(storiface.WindowPoStResult), ErrNotSupported
+	}
+	return s.Internal.GenerateWindowPoSt(p0, p1, p2, p3, p4, p5)
+}
+
+func (s *WorkerStub) GenerateWindowPoSt(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 int, p5 abi.PoStRandomness) (storiface.WindowPoStResult, error) {
+	return *new(storiface.WindowPoStResult), ErrNotSupported
+}
+
+func (s *WorkerStruct) GenerateWinningPoSt(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 abi.PoStRandomness) ([]proof.PoStProof, error) {
+	if s.Internal.GenerateWinningPoSt == nil {
+		return *new([]proof.PoStProof), ErrNotSupported
+	}
+	return s.Internal.GenerateWinningPoSt(p0, p1, p2, p3, p4)
+}
+
+func (s *WorkerStub) GenerateWinningPoSt(p0 context.Context, p1 abi.RegisteredPoStProof, p2 abi.ActorID, p3 []storiface.PostSectorChallenge, p4 abi.PoStRandomness) ([]proof.PoStProof, error) {
+	return *new([]proof.PoStProof), ErrNotSupported
+}
+
 func (s *WorkerStruct) Info(p0 context.Context) (storiface.WorkerInfo, error) {
 	if s.Internal.Info == nil {
 		return *new(storiface.WorkerInfo), ErrNotSupported
@@ -5141,15 +5351,15 @@ func (s *WorkerStub) MoveStorage(p0 context.Context, p1 storage.SectorRef, p2 st
 	return *new(storiface.CallID), ErrNotSupported
 }

-func (s *WorkerStruct) Paths(p0 context.Context) ([]stores.StoragePath, error) {
+func (s *WorkerStruct) Paths(p0 context.Context) ([]storiface.StoragePath, error) {
 	if s.Internal.Paths == nil {
-		return *new([]stores.StoragePath), ErrNotSupported
+		return *new([]storiface.StoragePath), ErrNotSupported
 	}
 	return s.Internal.Paths(p0)
 }

-func (s *WorkerStub) Paths(p0 context.Context) ([]stores.StoragePath, error) {
-	return *new([]stores.StoragePath), ErrNotSupported
+func (s *WorkerStub) Paths(p0 context.Context) ([]storiface.StoragePath, error) {
+	return *new([]storiface.StoragePath), ErrNotSupported
 }

 func (s *WorkerStruct) ProcessSession(p0 context.Context) (uuid.UUID, error) {
@@ -1,3 +1,4 @@
+//stm: #unit
 package api

 import (
@@ -29,6 +30,7 @@ type StrC struct {
 }

 func TestGetInternalStructs(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_API_STRUCTS_001
 	var proxy StrA

 	sts := GetInternalStructs(&proxy)
@@ -44,6 +46,7 @@ func TestGetInternalStructs(t *testing.T) {
 }

 func TestNestedInternalStructs(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_API_STRUCTS_001
 	var proxy StrC

 	// check that only the top-level internal struct gets picked up
@@ -5,21 +5,23 @@ import (
 	"fmt"
 	"time"

+	"github.com/filecoin-project/go-address"
+
+	"github.com/libp2p/go-libp2p-core/network"
+
 	datatransfer "github.com/filecoin-project/go-data-transfer"
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
 	"github.com/ipfs/go-cid"
 	"github.com/ipfs/go-graphsync"

-	"github.com/libp2p/go-libp2p-core/network"
 	"github.com/libp2p/go-libp2p-core/peer"
 	pubsub "github.com/libp2p/go-libp2p-pubsub"
 	ma "github.com/multiformats/go-multiaddr"
 )

-// TODO: check if this exists anywhere else
-
 type MultiaddrSlice []ma.Multiaddr

 func (m *MultiaddrSlice) UnmarshalJSON(raw []byte) (err error) {
@@ -58,7 +60,7 @@ type MessageSendSpec struct {
 // GraphSyncDataTransfer provides diagnostics on a data transfer happening over graphsync
 type GraphSyncDataTransfer struct {
 	// GraphSync request id for this transfer
-	RequestID graphsync.RequestID
+	RequestID *graphsync.RequestID
 	// Graphsync state for this transfer
 	RequestState string
 	// If a channel ID is present, indicates whether this is the current graphsync request for this channel
@@ -124,12 +126,6 @@ func NewDataTransferChannel(hostID peer.ID, channelState datatransfer.ChannelSta
 	return channel
 }

-type NetBlockList struct {
-	Peers     []peer.ID
-	IPAddrs   []string
-	IPSubnets []string
-}
-
 type NetStat struct {
 	System    *network.ScopeStat           `json:",omitempty"`
 	Transient *network.ScopeStat           `json:",omitempty"`
@@ -152,6 +148,12 @@ type NetLimit struct {
 	FD                                       int
 }

+type NetBlockList struct {
+	Peers     []peer.ID
+	IPAddrs   []string
+	IPSubnets []string
+}
+
 type ExtendedPeerInfo struct {
 	ID          peer.ID
 	Agent       string
@@ -285,3 +287,49 @@ type ExportRef struct {
 	FromLocalCAR string // if specified, get data from a local CARv2 file.
 	DealID       retrievalmarket.DealID
 }
+
+type MinerInfo struct {
+	Owner                      address.Address   // Must be an ID-address.
+	Worker                     address.Address   // Must be an ID-address.
+	NewWorker                  address.Address   // Must be an ID-address.
+	ControlAddresses           []address.Address // Must be an ID-addresses.
+	WorkerChangeEpoch          abi.ChainEpoch
+	PeerId                     *peer.ID
+	Multiaddrs                 []abi.Multiaddrs
+	WindowPoStProofType        abi.RegisteredPoStProof
+	SectorSize                 abi.SectorSize
+	WindowPoStPartitionSectors uint64
+	ConsensusFaultElapsed      abi.ChainEpoch
+}
+
+type NetworkParams struct {
+	NetworkName             dtypes.NetworkName
+	BlockDelaySecs          uint64
+	ConsensusMinerMinPower  abi.StoragePower
+	SupportedProofTypes     []abi.RegisteredSealProof
+	PreCommitChallengeDelay abi.ChainEpoch
+	ForkUpgradeParams       ForkUpgradeParams
+}
+
+type ForkUpgradeParams struct {
+	UpgradeSmokeHeight         abi.ChainEpoch
+	UpgradeBreezeHeight        abi.ChainEpoch
+	UpgradeIgnitionHeight      abi.ChainEpoch
+	UpgradeLiftoffHeight       abi.ChainEpoch
+	UpgradeAssemblyHeight      abi.ChainEpoch
+	UpgradeRefuelHeight        abi.ChainEpoch
+	UpgradeTapeHeight          abi.ChainEpoch
+	UpgradeKumquatHeight       abi.ChainEpoch
+	UpgradePriceListOopsHeight abi.ChainEpoch
+	BreezeGasTampingDuration   abi.ChainEpoch
+	UpgradeCalicoHeight        abi.ChainEpoch
+	UpgradePersianHeight       abi.ChainEpoch
+	UpgradeOrangeHeight        abi.ChainEpoch
+	UpgradeClausHeight         abi.ChainEpoch
+	UpgradeTrustHeight         abi.ChainEpoch
+	UpgradeNorwegianHeight     abi.ChainEpoch
+	UpgradeTurboHeight         abi.ChainEpoch
+	UpgradeHyperdriveHeight    abi.ChainEpoch
+	UpgradeChocolateHeight     abi.ChainEpoch
+	UpgradeOhSnapHeight        abi.ChainEpoch
+}
@@ -11,14 +11,16 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/filecoin-project/go-state-types/dline"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
 	textselector "github.com/ipld/go-ipld-selector-text-lite"
 	"github.com/libp2p/go-libp2p-core/peer"

+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	"github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	"github.com/filecoin-project/lotus/api"
 	apitypes "github.com/filecoin-project/lotus/api/types"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
+	lminer "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	marketevents "github.com/filecoin-project/lotus/markets/loggers"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
@@ -109,6 +111,9 @@ type FullNode interface {
 	// ChainDeleteObj deletes node referenced by the given CID
 	ChainDeleteObj(context.Context, cid.Cid) error //perm:admin

+	// ChainPutObj puts and object into the blockstore
+	ChainPutObj(context.Context, blocks.Block) error
+
 	// ChainHasObj checks if a given CID exists in the chain blockstore.
 	ChainHasObj(context.Context, cid.Cid) (bool, error) //perm:read

@@ -416,7 +421,7 @@ type FullNode interface {
 	// StateMinerPower returns the power of the indicated miner
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*api.MinerPower, error) //perm:read
 	// StateMinerInfo returns info about the indicated miner
-	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (miner.MinerInfo, error) //perm:read
+	StateMinerInfo(context.Context, address.Address, types.TipSetKey) (api.MinerInfo, error) //perm:read
 	// StateMinerDeadlines returns all the proving deadlines for the given miner
 	StateMinerDeadlines(context.Context, address.Address, types.TipSetKey) ([]api.Deadline, error) //perm:read
 	// StateMinerPartitions returns all partitions in the specified deadline
@@ -442,9 +447,9 @@ type FullNode interface {
 	// expiration epoch
 	StateSectorGetInfo(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorOnChainInfo, error) //perm:read
 	// StateSectorExpiration returns epoch at which given sector will expire
-	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*miner.SectorExpiration, error) //perm:read
+	StateSectorExpiration(context.Context, address.Address, abi.SectorNumber, types.TipSetKey) (*lminer.SectorExpiration, error) //perm:read
 	// StateSectorPartition finds deadline/partition with the specified sector
-	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*miner.SectorLocation, error) //perm:read
+	StateSectorPartition(ctx context.Context, maddr address.Address, sectorNumber abi.SectorNumber, tok types.TipSetKey) (*lminer.SectorLocation, error) //perm:read
 	// StateSearchMsg searches for a message in the chain, and returns its receipt and the tipset where it was executed
 	//
 	// NOTE: If a replacing message is found on chain, this method will return
@@ -521,7 +526,7 @@ type FullNode interface {
 	// StateMarketParticipants returns the Escrow and Locked balances of every participant in the Storage Market
 	StateMarketParticipants(context.Context, types.TipSetKey) (map[string]api.MarketBalance, error) //perm:read
 	// StateMarketDeals returns information about every deal in the Storage Market
-	StateMarketDeals(context.Context, types.TipSetKey) (map[string]api.MarketDeal, error) //perm:read
+	StateMarketDeals(context.Context, types.TipSetKey) (map[string]*api.MarketDeal, error) //perm:read
 	// StateMarketStorageDeal returns information about the indicated deal
 	StateMarketStorageDeal(context.Context, abi.DealID, types.TipSetKey) (*api.MarketDeal, error) //perm:read
 	// StateLookupID retrieves the ID address of the given address
@@ -604,6 +609,9 @@ type FullNode interface {
 	// StateGetRandomnessFromBeacon is used to sample the beacon for randomness.
 	StateGetRandomnessFromBeacon(ctx context.Context, personalization crypto.DomainSeparationTag, randEpoch abi.ChainEpoch, entropy []byte, tsk types.TipSetKey) (abi.Randomness, error) //perm:read

+	// StateGetNetworkParams return current network params
+	StateGetNetworkParams(ctx context.Context) (*api.NetworkParams, error) //perm:read
+
 	// MethodGroup: Msig
 	// The Msig methods are used to interact with multisig wallets on the
 	// filecoin network
@@ -3,6 +3,7 @@ package v0api
 import (
 	"context"

+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/go-address"
@@ -10,8 +11,8 @@ import (
 	"github.com/filecoin-project/go-state-types/dline"
 	abinetwork "github.com/filecoin-project/go-state-types/network"

+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
 	"github.com/filecoin-project/lotus/api"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 )

@@ -34,6 +35,7 @@ import (

 type Gateway interface {
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainPutObj(context.Context, blocks.Block) error
 	ChainHead(ctx context.Context) (*types.TipSet, error)
 	ChainGetBlockMessages(context.Context, cid.Cid) (*api.BlockMessages, error)
 	ChainGetMessage(ctx context.Context, mc cid.Cid) (*types.Message, error)
@@ -54,7 +56,7 @@ type Gateway interface {
 	StateLookupID(ctx context.Context, addr address.Address, tsk types.TipSetKey) (address.Address, error)
 	StateMarketBalance(ctx context.Context, addr address.Address, tsk types.TipSetKey) (api.MarketBalance, error)
 	StateMarketStorageDeal(ctx context.Context, dealId abi.DealID, tsk types.TipSetKey) (*api.MarketDeal, error)
-	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (miner.MinerInfo, error)
+	StateMinerInfo(ctx context.Context, actor address.Address, tsk types.TipSetKey) (api.MinerInfo, error)
 	StateMinerProvingDeadline(ctx context.Context, addr address.Address, tsk types.TipSetKey) (*dline.Info, error)
 	StateMinerPower(context.Context, address.Address, types.TipSetKey) (*api.MinerPower, error)
 	StateNetworkVersion(context.Context, types.TipSetKey) (abinetwork.Version, error)
@@ -11,17 +11,19 @@ import (
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-fil-markets/storagemarket"
 	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	"github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	"github.com/filecoin-project/go-state-types/crypto"
 	"github.com/filecoin-project/go-state-types/dline"
 	abinetwork "github.com/filecoin-project/go-state-types/network"
 	"github.com/filecoin-project/lotus/api"
 	apitypes "github.com/filecoin-project/lotus/api/types"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
-	"github.com/filecoin-project/lotus/chain/actors/builtin/paych"
+	lminer "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
 	marketevents "github.com/filecoin-project/lotus/markets/loggers"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
 	"github.com/filecoin-project/lotus/node/repo/imports"
+	blocks "github.com/ipfs/go-block-format"
 	"github.com/ipfs/go-cid"
 	"github.com/libp2p/go-libp2p-core/peer"
 	"golang.org/x/xerrors"
@@ -73,6 +75,8 @@ type FullNodeStruct struct {

 		ChainNotify func(p0 context.Context) (<-chan []*api.HeadChange, error) `perm:"read"`

+		ChainPutObj func(p0 context.Context, p1 blocks.Block) error ``
+
 		ChainReadObj func(p0 context.Context, p1 cid.Cid) ([]byte, error) `perm:"read"`

 		ChainSetHead func(p0 context.Context, p1 types.TipSetKey) error `perm:"admin"`
@@ -267,6 +271,8 @@ type FullNodeStruct struct {

 		StateGetActor func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*types.Actor, error) `perm:"read"`

+		StateGetNetworkParams func(p0 context.Context) (*api.NetworkParams, error) `perm:"read"`
+
 		StateGetRandomnessFromBeacon func(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) `perm:"read"`

 		StateGetRandomnessFromTickets func(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) `perm:"read"`
@@ -283,7 +289,7 @@ type FullNodeStruct struct {

 		StateMarketBalance func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MarketBalance, error) `perm:"read"`

-		StateMarketDeals func(p0 context.Context, p1 types.TipSetKey) (map[string]api.MarketDeal, error) `perm:"read"`
+		StateMarketDeals func(p0 context.Context, p1 types.TipSetKey) (map[string]*api.MarketDeal, error) `perm:"read"`

 		StateMarketParticipants func(p0 context.Context, p1 types.TipSetKey) (map[string]api.MarketBalance, error) `perm:"read"`

@@ -297,7 +303,7 @@ type FullNodeStruct struct {

 		StateMinerFaults func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (bitfield.BitField, error) `perm:"read"`

-		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) `perm:"read"`
+		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) `perm:"read"`

 		StateMinerInitialPledgeCollateral func(p0 context.Context, p1 address.Address, p2 miner.SectorPreCommitInfo, p3 types.TipSetKey) (types.BigInt, error) `perm:"read"`

@@ -329,11 +335,11 @@ type FullNodeStruct struct {

 		StateSearchMsgLimited func(p0 context.Context, p1 cid.Cid, p2 abi.ChainEpoch) (*api.MsgLookup, error) `perm:"read"`

-		StateSectorExpiration func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) `perm:"read"`
+		StateSectorExpiration func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) `perm:"read"`

 		StateSectorGetInfo func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorOnChainInfo, error) `perm:"read"`

-		StateSectorPartition func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) `perm:"read"`
+		StateSectorPartition func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) `perm:"read"`

 		StateSectorPreCommitInfo func(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (miner.SectorPreCommitOnChainInfo, error) `perm:"read"`

@@ -417,6 +423,8 @@ type GatewayStruct struct {

 		ChainNotify func(p0 context.Context) (<-chan []*api.HeadChange, error) ``

+		ChainPutObj func(p0 context.Context, p1 blocks.Block) error ``
+
 		ChainReadObj func(p0 context.Context, p1 cid.Cid) ([]byte, error) ``

 		GasEstimateMessageGas func(p0 context.Context, p1 *types.Message, p2 *api.MessageSendSpec, p3 types.TipSetKey) (*types.Message, error) ``
@@ -445,7 +453,7 @@ type GatewayStruct struct {

 		StateMarketStorageDeal func(p0 context.Context, p1 abi.DealID, p2 types.TipSetKey) (*api.MarketDeal, error) ``

-		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) ``
+		StateMinerInfo func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) ``

 		StateMinerPower func(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*api.MinerPower, error) ``

@@ -679,6 +687,17 @@ func (s *FullNodeStub) ChainNotify(p0 context.Context) (<-chan []*api.HeadChange
 	return nil, ErrNotSupported
 }

+func (s *FullNodeStruct) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	if s.Internal.ChainPutObj == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ChainPutObj(p0, p1)
+}
+
+func (s *FullNodeStub) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	return ErrNotSupported
+}
+
 func (s *FullNodeStruct) ChainReadObj(p0 context.Context, p1 cid.Cid) ([]byte, error) {
 	if s.Internal.ChainReadObj == nil {
 		return *new([]byte), ErrNotSupported
@@ -1746,6 +1765,17 @@ func (s *FullNodeStub) StateGetActor(p0 context.Context, p1 address.Address, p2
 	return nil, ErrNotSupported
 }

+func (s *FullNodeStruct) StateGetNetworkParams(p0 context.Context) (*api.NetworkParams, error) {
+	if s.Internal.StateGetNetworkParams == nil {
+		return nil, ErrNotSupported
+	}
+	return s.Internal.StateGetNetworkParams(p0)
+}
+
+func (s *FullNodeStub) StateGetNetworkParams(p0 context.Context) (*api.NetworkParams, error) {
+	return nil, ErrNotSupported
+}
+
 func (s *FullNodeStruct) StateGetRandomnessFromBeacon(p0 context.Context, p1 crypto.DomainSeparationTag, p2 abi.ChainEpoch, p3 []byte, p4 types.TipSetKey) (abi.Randomness, error) {
 	if s.Internal.StateGetRandomnessFromBeacon == nil {
 		return *new(abi.Randomness), ErrNotSupported
@@ -1834,15 +1864,15 @@ func (s *FullNodeStub) StateMarketBalance(p0 context.Context, p1 address.Address
 	return *new(api.MarketBalance), ErrNotSupported
 }

-func (s *FullNodeStruct) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]api.MarketDeal, error) {
+func (s *FullNodeStruct) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]*api.MarketDeal, error) {
 	if s.Internal.StateMarketDeals == nil {
-		return *new(map[string]api.MarketDeal), ErrNotSupported
+		return *new(map[string]*api.MarketDeal), ErrNotSupported
 	}
 	return s.Internal.StateMarketDeals(p0, p1)
 }

-func (s *FullNodeStub) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]api.MarketDeal, error) {
-	return *new(map[string]api.MarketDeal), ErrNotSupported
+func (s *FullNodeStub) StateMarketDeals(p0 context.Context, p1 types.TipSetKey) (map[string]*api.MarketDeal, error) {
+	return *new(map[string]*api.MarketDeal), ErrNotSupported
 }

 func (s *FullNodeStruct) StateMarketParticipants(p0 context.Context, p1 types.TipSetKey) (map[string]api.MarketBalance, error) {
@@ -1911,15 +1941,15 @@ func (s *FullNodeStub) StateMinerFaults(p0 context.Context, p1 address.Address,
 	return *new(bitfield.BitField), ErrNotSupported
 }

-func (s *FullNodeStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
+func (s *FullNodeStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) {
 	if s.Internal.StateMinerInfo == nil {
-		return *new(miner.MinerInfo), ErrNotSupported
+		return *new(api.MinerInfo), ErrNotSupported
 	}
 	return s.Internal.StateMinerInfo(p0, p1, p2)
 }

-func (s *FullNodeStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
-	return *new(miner.MinerInfo), ErrNotSupported
+func (s *FullNodeStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) {
+	return *new(api.MinerInfo), ErrNotSupported
 }

 func (s *FullNodeStruct) StateMinerInitialPledgeCollateral(p0 context.Context, p1 address.Address, p2 miner.SectorPreCommitInfo, p3 types.TipSetKey) (types.BigInt, error) {
@@ -2087,14 +2117,14 @@ func (s *FullNodeStub) StateSearchMsgLimited(p0 context.Context, p1 cid.Cid, p2
 	return nil, ErrNotSupported
 }

-func (s *FullNodeStruct) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (s *FullNodeStruct) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) {
 	if s.Internal.StateSectorExpiration == nil {
 		return nil, ErrNotSupported
 	}
 	return s.Internal.StateSectorExpiration(p0, p1, p2, p3)
 }

-func (s *FullNodeStub) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (s *FullNodeStub) StateSectorExpiration(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorExpiration, error) {
 	return nil, ErrNotSupported
 }

@@ -2109,14 +2139,14 @@ func (s *FullNodeStub) StateSectorGetInfo(p0 context.Context, p1 address.Address
 	return nil, ErrNotSupported
 }

-func (s *FullNodeStruct) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (s *FullNodeStruct) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) {
 	if s.Internal.StateSectorPartition == nil {
 		return nil, ErrNotSupported
 	}
 	return s.Internal.StateSectorPartition(p0, p1, p2, p3)
 }

-func (s *FullNodeStub) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (s *FullNodeStub) StateSectorPartition(p0 context.Context, p1 address.Address, p2 abi.SectorNumber, p3 types.TipSetKey) (*lminer.SectorLocation, error) {
 	return nil, ErrNotSupported
 }

@@ -2516,6 +2546,17 @@ func (s *GatewayStub) ChainNotify(p0 context.Context) (<-chan []*api.HeadChange,
 	return nil, ErrNotSupported
 }

+func (s *GatewayStruct) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	if s.Internal.ChainPutObj == nil {
+		return ErrNotSupported
+	}
+	return s.Internal.ChainPutObj(p0, p1)
+}
+
+func (s *GatewayStub) ChainPutObj(p0 context.Context, p1 blocks.Block) error {
+	return ErrNotSupported
+}
+
 func (s *GatewayStruct) ChainReadObj(p0 context.Context, p1 cid.Cid) ([]byte, error) {
 	if s.Internal.ChainReadObj == nil {
 		return *new([]byte), ErrNotSupported
@@ -2670,15 +2711,15 @@ func (s *GatewayStub) StateMarketStorageDeal(p0 context.Context, p1 abi.DealID,
 	return nil, ErrNotSupported
 }

-func (s *GatewayStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
+func (s *GatewayStruct) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) {
 	if s.Internal.StateMinerInfo == nil {
-		return *new(miner.MinerInfo), ErrNotSupported
+		return *new(api.MinerInfo), ErrNotSupported
 	}
 	return s.Internal.StateMinerInfo(p0, p1, p2)
 }

-func (s *GatewayStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (miner.MinerInfo, error) {
-	return *new(miner.MinerInfo), ErrNotSupported
+func (s *GatewayStub) StateMinerInfo(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (api.MinerInfo, error) {
+	return *new(api.MinerInfo), ErrNotSupported
 }

 func (s *GatewayStruct) StateMinerPower(p0 context.Context, p1 address.Address, p2 types.TipSetKey) (*api.MinerPower, error) {
@@ -7,6 +7,7 @@ package v0mocks
 import (
 	context "context"
 	reflect "reflect"
+	time "time"

 	address "github.com/filecoin-project/go-address"
 	bitfield "github.com/filecoin-project/go-bitfield"
@@ -16,22 +17,23 @@ import (
 	auth "github.com/filecoin-project/go-jsonrpc/auth"
 	abi "github.com/filecoin-project/go-state-types/abi"
 	big "github.com/filecoin-project/go-state-types/big"
+	miner "github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	paych "github.com/filecoin-project/go-state-types/builtin/v8/paych"
 	crypto "github.com/filecoin-project/go-state-types/crypto"
 	dline "github.com/filecoin-project/go-state-types/dline"
 	network "github.com/filecoin-project/go-state-types/network"
 	api "github.com/filecoin-project/lotus/api"
 	apitypes "github.com/filecoin-project/lotus/api/types"
 	v0api "github.com/filecoin-project/lotus/api/v0api"
-	miner "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
+	miner0 "github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	types "github.com/filecoin-project/lotus/chain/types"
 	alerting "github.com/filecoin-project/lotus/journal/alerting"
 	marketevents "github.com/filecoin-project/lotus/markets/loggers"
 	dtypes "github.com/filecoin-project/lotus/node/modules/dtypes"
 	imports "github.com/filecoin-project/lotus/node/repo/imports"
-	miner0 "github.com/filecoin-project/specs-actors/actors/builtin/miner"
-	paych "github.com/filecoin-project/specs-actors/actors/builtin/paych"
 	gomock "github.com/golang/mock/gomock"
 	uuid "github.com/google/uuid"
+	blocks "github.com/ipfs/go-block-format"
 	cid "github.com/ipfs/go-cid"
 	metrics "github.com/libp2p/go-libp2p-core/metrics"
 	network0 "github.com/libp2p/go-libp2p-core/network"
@@ -376,6 +378,20 @@ func (mr *MockFullNodeMockRecorder) ChainNotify(arg0 interface{}) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ChainNotify", reflect.TypeOf((*MockFullNode)(nil).ChainNotify), arg0)
 }

+// ChainPutObj mocks base method.
+func (m *MockFullNode) ChainPutObj(arg0 context.Context, arg1 blocks.Block) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "ChainPutObj", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// ChainPutObj indicates an expected call of ChainPutObj.
+func (mr *MockFullNodeMockRecorder) ChainPutObj(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "ChainPutObj", reflect.TypeOf((*MockFullNode)(nil).ChainPutObj), arg0, arg1)
+}
+
 // ChainReadObj mocks base method.
 func (m *MockFullNode) ChainReadObj(arg0 context.Context, arg1 cid.Cid) ([]byte, error) {
 	m.ctrl.T.Helper()
@@ -1769,6 +1785,21 @@ func (mr *MockFullNodeMockRecorder) NetPeers(arg0 interface{}) *gomock.Call {
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NetPeers", reflect.TypeOf((*MockFullNode)(nil).NetPeers), arg0)
 }

+// NetPing mocks base method.
+func (m *MockFullNode) NetPing(arg0 context.Context, arg1 peer.ID) (time.Duration, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "NetPing", arg0, arg1)
+	ret0, _ := ret[0].(time.Duration)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// NetPing indicates an expected call of NetPing.
+func (mr *MockFullNodeMockRecorder) NetPing(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "NetPing", reflect.TypeOf((*MockFullNode)(nil).NetPing), arg0, arg1)
+}
+
 // NetProtectAdd mocks base method.
 func (m *MockFullNode) NetProtectAdd(arg0 context.Context, arg1 []peer.ID) error {
 	m.ctrl.T.Helper()
@@ -2259,6 +2290,21 @@ func (mr *MockFullNodeMockRecorder) StateGetActor(arg0, arg1, arg2 interface{})
 	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateGetActor", reflect.TypeOf((*MockFullNode)(nil).StateGetActor), arg0, arg1, arg2)
 }

+// StateGetNetworkParams mocks base method.
+func (m *MockFullNode) StateGetNetworkParams(arg0 context.Context) (*api.NetworkParams, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StateGetNetworkParams", arg0)
+	ret0, _ := ret[0].(*api.NetworkParams)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StateGetNetworkParams indicates an expected call of StateGetNetworkParams.
+func (mr *MockFullNodeMockRecorder) StateGetNetworkParams(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StateGetNetworkParams", reflect.TypeOf((*MockFullNode)(nil).StateGetNetworkParams), arg0)
+}
+
 // StateGetRandomnessFromBeacon mocks base method.
 func (m *MockFullNode) StateGetRandomnessFromBeacon(arg0 context.Context, arg1 crypto.DomainSeparationTag, arg2 abi.ChainEpoch, arg3 []byte, arg4 types.TipSetKey) (abi.Randomness, error) {
 	m.ctrl.T.Helper()
@@ -2380,10 +2426,10 @@ func (mr *MockFullNodeMockRecorder) StateMarketBalance(arg0, arg1, arg2 interfac
 }

 // StateMarketDeals mocks base method.
-func (m *MockFullNode) StateMarketDeals(arg0 context.Context, arg1 types.TipSetKey) (map[string]api.MarketDeal, error) {
+func (m *MockFullNode) StateMarketDeals(arg0 context.Context, arg1 types.TipSetKey) (map[string]*api.MarketDeal, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMarketDeals", arg0, arg1)
-	ret0, _ := ret[0].(map[string]api.MarketDeal)
+	ret0, _ := ret[0].(map[string]*api.MarketDeal)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2485,10 +2531,10 @@ func (mr *MockFullNodeMockRecorder) StateMinerFaults(arg0, arg1, arg2 interface{
 }

 // StateMinerInfo mocks base method.
-func (m *MockFullNode) StateMinerInfo(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (miner.MinerInfo, error) {
+func (m *MockFullNode) StateMinerInfo(arg0 context.Context, arg1 address.Address, arg2 types.TipSetKey) (api.MinerInfo, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerInfo", arg0, arg1, arg2)
-	ret0, _ := ret[0].(miner.MinerInfo)
+	ret0, _ := ret[0].(api.MinerInfo)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2500,7 +2546,7 @@ func (mr *MockFullNodeMockRecorder) StateMinerInfo(arg0, arg1, arg2 interface{})
 }

 // StateMinerInitialPledgeCollateral mocks base method.
-func (m *MockFullNode) StateMinerInitialPledgeCollateral(arg0 context.Context, arg1 address.Address, arg2 miner0.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
+func (m *MockFullNode) StateMinerInitialPledgeCollateral(arg0 context.Context, arg1 address.Address, arg2 miner.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerInitialPledgeCollateral", arg0, arg1, arg2, arg3)
 	ret0, _ := ret[0].(big.Int)
@@ -2545,7 +2591,7 @@ func (mr *MockFullNodeMockRecorder) StateMinerPower(arg0, arg1, arg2 interface{}
 }

 // StateMinerPreCommitDepositForPower mocks base method.
-func (m *MockFullNode) StateMinerPreCommitDepositForPower(arg0 context.Context, arg1 address.Address, arg2 miner0.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
+func (m *MockFullNode) StateMinerPreCommitDepositForPower(arg0 context.Context, arg1 address.Address, arg2 miner.SectorPreCommitInfo, arg3 types.TipSetKey) (big.Int, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateMinerPreCommitDepositForPower", arg0, arg1, arg2, arg3)
 	ret0, _ := ret[0].(big.Int)
@@ -2725,10 +2771,10 @@ func (mr *MockFullNodeMockRecorder) StateSearchMsgLimited(arg0, arg1, arg2 inter
 }

 // StateSectorExpiration mocks base method.
-func (m *MockFullNode) StateSectorExpiration(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner.SectorExpiration, error) {
+func (m *MockFullNode) StateSectorExpiration(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner0.SectorExpiration, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateSectorExpiration", arg0, arg1, arg2, arg3)
-	ret0, _ := ret[0].(*miner.SectorExpiration)
+	ret0, _ := ret[0].(*miner0.SectorExpiration)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -2755,10 +2801,10 @@ func (mr *MockFullNodeMockRecorder) StateSectorGetInfo(arg0, arg1, arg2, arg3 in
 }

 // StateSectorPartition mocks base method.
-func (m *MockFullNode) StateSectorPartition(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner.SectorLocation, error) {
+func (m *MockFullNode) StateSectorPartition(arg0 context.Context, arg1 address.Address, arg2 abi.SectorNumber, arg3 types.TipSetKey) (*miner0.SectorLocation, error) {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "StateSectorPartition", arg0, arg1, arg2, arg3)
-	ret0, _ := ret[0].(*miner.SectorLocation)
+	ret0, _ := ret[0].(*miner0.SectorLocation)
 	ret1, _ := ret[1].(error)
 	return ret0, ret1
 }
@@ -3,6 +3,9 @@ package v0api
 import (
 	"context"

+	"github.com/filecoin-project/go-fil-markets/storagemarket"
+	"github.com/libp2p/go-libp2p-core/peer"
+
 	"github.com/filecoin-project/go-fil-markets/retrievalmarket"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/crypto"
@@ -337,4 +340,20 @@ func (w *WrapperV1Full) clientRetrieve(ctx context.Context, order RetrievalOrder
 	finish(w.ClientExport(ctx, eref, *ref))
 }

+func (w *WrapperV1Full) PaychGet(ctx context.Context, from, to address.Address, amt types.BigInt) (*api.ChannelInfo, error) {
+	return w.FullNode.PaychFund(ctx, from, to, amt)
+}
+
+func (w *WrapperV1Full) ClientQueryAsk(ctx context.Context, p peer.ID, miner address.Address) (*storagemarket.StorageAsk, error) {
+	a, err := w.FullNode.ClientQueryAsk(ctx, p, miner)
+	if err != nil {
+		return nil, err
+	}
+	return a.Response, nil
+}
+
+func (w *WrapperV1Full) BeaconGetEntry(ctx context.Context, epoch abi.ChainEpoch) (*types.BeaconEntry, error) {
+	return w.StateGetBeaconEntry(ctx, epoch)
+}
+
 var _ FullNode = &WrapperV1Full{}
@@ -57,8 +57,8 @@ var (
 	FullAPIVersion0 = newVer(1, 5, 0)
 	FullAPIVersion1 = newVer(2, 2, 0)

-	MinerAPIVersion0  = newVer(1, 3, 0)
-	WorkerAPIVersion0 = newVer(1, 5, 0)
+	MinerAPIVersion0  = newVer(1, 5, 0)
+	WorkerAPIVersion0 = newVer(1, 6, 0)
 )

 //nolint:varcheck,deadcode
@@ -11,6 +11,7 @@ import (
 type ChainIO interface {
 	ChainReadObj(context.Context, cid.Cid) ([]byte, error)
 	ChainHasObj(context.Context, cid.Cid) (bool, error)
+	ChainPutObj(context.Context, blocks.Block) error
 }

 type apiBlockstore struct {
@@ -49,12 +50,18 @@ func (a *apiBlockstore) GetSize(ctx context.Context, c cid.Cid) (int, error) {
 	return len(bb), nil
 }

-func (a *apiBlockstore) Put(context.Context, blocks.Block) error {
-	return xerrors.New("not supported")
+func (a *apiBlockstore) Put(ctx context.Context, block blocks.Block) error {
+	return a.api.ChainPutObj(ctx, block)
 }

-func (a *apiBlockstore) PutMany(context.Context, []blocks.Block) error {
-	return xerrors.New("not supported")
+func (a *apiBlockstore) PutMany(ctx context.Context, blocks []blocks.Block) error {
+	for _, block := range blocks {
+		err := a.api.ChainPutObj(ctx, block)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
 }

 func (a *apiBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error) {
@@ -1,10 +1,10 @@
+//stm: #unit
 package badgerbs

 import (
 	"bytes"
 	"context"
 	"fmt"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
@@ -20,6 +20,8 @@ import (
 )

 func TestBadgerBlockstore(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
 	(&Suite{
 		NewBlockstore:  newBlockstore(DefaultOptions),
 		OpenBlockstore: openBlockstore(DefaultOptions),
@@ -38,6 +40,8 @@ func TestBadgerBlockstore(t *testing.T) {
 }

 func TestStorageKey(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_STORAGE_KEY_001
 	bs, _ := newBlockstore(DefaultOptions)(t)
 	bbs := bs.(*Blockstore)
 	defer bbs.Close() //nolint:errcheck
@@ -73,20 +77,13 @@ func newBlockstore(optsSupplier func(path string) Options) func(tb testing.TB) (
 	return func(tb testing.TB) (bs blockstore.BasicBlockstore, path string) {
 		tb.Helper()

-		path, err := ioutil.TempDir("", "")
-		if err != nil {
-			tb.Fatal(err)
-		}
+		path = tb.TempDir()

 		db, err := Open(optsSupplier(path))
 		if err != nil {
 			tb.Fatal(err)
 		}

-		tb.Cleanup(func() {
-			_ = os.RemoveAll(path)
-		})
-
 		return db, path
 	}
 }
@@ -100,17 +97,10 @@ func openBlockstore(optsSupplier func(path string) Options) func(tb testing.TB,

 func testMove(t *testing.T, optsF func(string) Options) {
 	ctx := context.Background()
-	basePath, err := ioutil.TempDir("", "")
-	if err != nil {
-		t.Fatal(err)
-	}
+	basePath := t.TempDir()

 	dbPath := filepath.Join(basePath, "db")

-	t.Cleanup(func() {
-		_ = os.RemoveAll(basePath)
-	})
-
 	db, err := Open(optsF(dbPath))
 	if err != nil {
 		t.Fatal(err)
@@ -265,10 +255,16 @@ func testMove(t *testing.T, optsF func(string) Options) {
 }

 func TestMoveNoPrefix(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_DELETE_001, @SPLITSTORE_BADGER_COLLECT_GARBAGE_001
 	testMove(t, DefaultOptions)
 }

 func TestMoveWithPrefix(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_DELETE_001, @SPLITSTORE_BADGER_COLLECT_GARBAGE_001
 	testMove(t, func(path string) Options {
 		opts := DefaultOptions(path)
 		opts.Prefix = "/prefixed/"
@@ -1,3 +1,4 @@
+//stm: #unit
 package badgerbs

 import (
@@ -44,6 +45,8 @@ func (s *Suite) RunTests(t *testing.T, prefix string) {
 }

 func (s *Suite) TestGetWhenKeyNotPresent(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_GET_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -57,6 +60,8 @@ func (s *Suite) TestGetWhenKeyNotPresent(t *testing.T) {
 }

 func (s *Suite) TestGetWhenKeyIsNil(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_GET_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -68,6 +73,9 @@ func (s *Suite) TestGetWhenKeyIsNil(t *testing.T) {
 }

 func (s *Suite) TestPutThenGetBlock(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_GET_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -85,6 +93,8 @@ func (s *Suite) TestPutThenGetBlock(t *testing.T) {
 }

 func (s *Suite) TestHas(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_HAS_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -106,6 +116,9 @@ func (s *Suite) TestHas(t *testing.T) {
 }

 func (s *Suite) TestCidv0v1(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_GET_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -123,6 +136,9 @@ func (s *Suite) TestCidv0v1(t *testing.T) {
 }

 func (s *Suite) TestPutThenGetSizeBlock(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_GET_SIZE_001
 	ctx := context.Background()

 	bs, _ := s.NewBlockstore(t)
@@ -154,6 +170,8 @@ func (s *Suite) TestPutThenGetSizeBlock(t *testing.T) {
 }

 func (s *Suite) TestAllKeysSimple(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
 		defer func() { require.NoError(t, c.Close()) }()
@@ -170,6 +188,9 @@ func (s *Suite) TestAllKeysSimple(t *testing.T) {
 }

 func (s *Suite) TestAllKeysRespectsContext(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_ALL_KEYS_CHAN_001
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
 		defer func() { require.NoError(t, c.Close()) }()
@@ -200,6 +221,7 @@ func (s *Suite) TestAllKeysRespectsContext(t *testing.T) {
 }

 func (s *Suite) TestDoubleClose(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
 	bs, _ := s.NewBlockstore(t)
 	c, ok := bs.(io.Closer)
 	if !ok {
@@ -210,6 +232,9 @@ func (s *Suite) TestDoubleClose(t *testing.T) {
 }

 func (s *Suite) TestReopenPutGet(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_GET_001
 	ctx := context.Background()
 	bs, path := s.NewBlockstore(t)
 	c, ok := bs.(io.Closer)
@@ -236,6 +261,10 @@ func (s *Suite) TestReopenPutGet(t *testing.T) {
 }

 func (s *Suite) TestPutMany(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_OPEN_001, @SPLITSTORE_BADGER_CLOSE_001
+	//stm: @SPLITSTORE_BADGER_HAS_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_GET_001, @SPLITSTORE_BADGER_PUT_MANY_001
+	//stm: @SPLITSTORE_BADGER_ALL_KEYS_CHAN_001
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -268,6 +297,11 @@ func (s *Suite) TestPutMany(t *testing.T) {
 }

 func (s *Suite) TestDelete(t *testing.T) {
+	//stm: @SPLITSTORE_BADGER_PUT_001, @SPLITSTORE_BADGER_POOLED_STORAGE_KEY_001
+	//stm: @SPLITSTORE_BADGER_DELETE_001, @SPLITSTORE_BADGER_POOLED_STORAGE_HAS_001
+	//stm: @SPLITSTORE_BADGER_ALL_KEYS_CHAN_001, @SPLITSTORE_BADGER_HAS_001
+	//stm: @SPLITSTORE_BADGER_PUT_MANY_001
+
 	ctx := context.Background()
 	bs, _ := s.NewBlockstore(t)
 	if c, ok := bs.(io.Closer); ok {
@@ -0,0 +1,21 @@
+package blockstore
+
+import (
+	"context"
+)
+
+type hotViewKey struct{}
+
+var hotView = hotViewKey{}
+
+// WithHotView constructs a new context with an option that provides a hint to the blockstore
+// (e.g. the splitstore) that the object (and its ipld references) should be kept hot.
+func WithHotView(ctx context.Context) context.Context {
+	return context.WithValue(ctx, hotView, struct{}{})
+}
+
+// IsHotView returns true if the hot view option is set in the context
+func IsHotView(ctx context.Context) bool {
+	v := ctx.Value(hotView)
+	return v != nil
+}
@@ -49,10 +49,11 @@ These are options in the `[Chainstore.Splitstore]` section of the configuration:
  blockstore and discards writes; this is necessary to support syncing from a snapshot.
 - `MarkSetType` -- specifies the type of markset to use during compaction.
  The markset is the data structure used by compaction/gc to track live objects.
-  The default value is `"map"`, which will use an in-memory map; if you are limited
-  in memory (or indeed see compaction run out of memory), you can also specify
-  `"badger"` which will use an disk backed markset, using badger. This will use
-  much less memory, but will also make compaction slower.
+  The default value is "badger", which will use a disk backed markset using badger.
+  If you have a lot of memory (48G or more) you can also use "map", which will use
+  an in memory markset, speeding up compaction at the cost of higher memory usage.
+  Note: If you are using a VPS with a network volume, you need to provision at least
+  3000 IOPs with the badger markset.
 - `HotStoreMessageRetention` -- specifies how many finalities, beyond the 4
  finalities maintained by default, to maintain messages and message receipts in the
  hotstore. This is useful for assistive nodes that want to support syncing for other
@@ -105,6 +106,12 @@ Compaction works transactionally with the following algorithm:
  - We delete in small batches taking a lock; each batch is checked again for marks, from the concurrent transactional mark, so as to never delete anything live
 - We then end the transaction and compact/gc the hotstore.

+As of [#8008](https://github.com/filecoin-project/lotus/pull/8008) the compaction algorithm has been
+modified to eliminate sorting and maintain the cold object set on disk. This drastically reduces
+memory usage; in fact, when using badger as the markset compaction uses very little memory, and
+it should be now possible to run splitstore with 32GB of RAM or less without danger of running out of
+memory during compaction.
+
 ## Garbage Collection

 TBD -- see [#6577](https://github.com/filecoin-project/lotus/issues/6577)
@@ -0,0 +1,118 @@
+package splitstore
+
+import (
+	"bufio"
+	"io"
+	"os"
+
+	"golang.org/x/xerrors"
+
+	cid "github.com/ipfs/go-cid"
+	mh "github.com/multiformats/go-multihash"
+)
+
+type Checkpoint struct {
+	file *os.File
+	buf  *bufio.Writer
+}
+
+func NewCheckpoint(path string) (*Checkpoint, error) {
+	file, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY|os.O_SYNC, 0644)
+	if err != nil {
+		return nil, xerrors.Errorf("error creating checkpoint: %w", err)
+	}
+	buf := bufio.NewWriter(file)
+
+	return &Checkpoint{
+		file: file,
+		buf:  buf,
+	}, nil
+}
+
+func OpenCheckpoint(path string) (*Checkpoint, cid.Cid, error) {
+	filein, err := os.Open(path)
+	if err != nil {
+		return nil, cid.Undef, xerrors.Errorf("error opening checkpoint for reading: %w", err)
+	}
+	defer filein.Close() //nolint:errcheck
+
+	bufin := bufio.NewReader(filein)
+	start, err := readRawCid(bufin, nil)
+	if err != nil && err != io.EOF {
+		return nil, cid.Undef, xerrors.Errorf("error reading cid from checkpoint: %w", err)
+	}
+
+	fileout, err := os.OpenFile(path, os.O_WRONLY|os.O_SYNC, 0644)
+	if err != nil {
+		return nil, cid.Undef, xerrors.Errorf("error opening checkpoint for writing: %w", err)
+	}
+	bufout := bufio.NewWriter(fileout)
+
+	return &Checkpoint{
+		file: fileout,
+		buf:  bufout,
+	}, start, nil
+}
+
+func (cp *Checkpoint) Set(c cid.Cid) error {
+	if _, err := cp.file.Seek(0, io.SeekStart); err != nil {
+		return xerrors.Errorf("error seeking beginning of checkpoint: %w", err)
+	}
+
+	if err := writeRawCid(cp.buf, c, true); err != nil {
+		return xerrors.Errorf("error writing cid to checkpoint: %w", err)
+	}
+
+	return nil
+}
+
+func (cp *Checkpoint) Close() error {
+	if cp.file == nil {
+		return nil
+	}
+
+	err := cp.file.Close()
+	cp.file = nil
+	cp.buf = nil
+
+	return err
+}
+
+func readRawCid(buf *bufio.Reader, hbuf []byte) (cid.Cid, error) {
+	sz, err := buf.ReadByte()
+	if err != nil {
+		return cid.Undef, err // don't wrap EOF as it is not an error here
+	}
+
+	if hbuf == nil {
+		hbuf = make([]byte, int(sz))
+	} else {
+		hbuf = hbuf[:int(sz)]
+	}
+
+	if _, err := io.ReadFull(buf, hbuf); err != nil {
+		return cid.Undef, xerrors.Errorf("error reading hash: %w", err) // wrap EOF, it's corrupt
+	}
+
+	hash, err := mh.Cast(hbuf)
+	if err != nil {
+		return cid.Undef, xerrors.Errorf("error casting multihash: %w", err)
+	}
+
+	return cid.NewCidV1(cid.Raw, hash), nil
+}
+
+func writeRawCid(buf *bufio.Writer, c cid.Cid, flush bool) error {
+	hash := c.Hash()
+	if err := buf.WriteByte(byte(len(hash))); err != nil {
+		return err
+	}
+	if _, err := buf.Write(hash); err != nil {
+		return err
+	}
+	if flush {
+		return buf.Flush()
+	}
+
+	return nil
+}
@@ -0,0 +1,138 @@
+package splitstore
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/ipfs/go-cid"
+	"github.com/multiformats/go-multihash"
+)
+
+func TestCheckpoint(t *testing.T) {
+	dir := t.TempDir()
+
+	path := filepath.Join(dir, "checkpoint")
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	cp, err := NewCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Set(k1); err != nil {
+		t.Fatal(err)
+	}
+	if err := cp.Set(k2); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cp, start, err := OpenCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !start.Equals(k2) {
+		t.Fatalf("expected start to be %s; got %s", k2, start)
+	}
+
+	if err := cp.Set(k3); err != nil {
+		t.Fatal(err)
+	}
+	if err := cp.Set(k4); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cp, start, err = OpenCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !start.Equals(k4) {
+		t.Fatalf("expected start to be %s; got %s", k4, start)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	// also test correct operation with an empty checkpoint
+	cp, err = NewCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cp, start, err = OpenCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if start.Defined() {
+		t.Fatal("expected start to be undefined")
+	}
+
+	if err := cp.Set(k1); err != nil {
+		t.Fatal(err)
+	}
+	if err := cp.Set(k2); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cp, start, err = OpenCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !start.Equals(k2) {
+		t.Fatalf("expected start to be %s; got %s", k2, start)
+	}
+
+	if err := cp.Set(k3); err != nil {
+		t.Fatal(err)
+	}
+	if err := cp.Set(k4); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cp, start, err = OpenCheckpoint(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !start.Equals(k4) {
+		t.Fatalf("expected start to be %s; got %s", k4, start)
+	}
+
+	if err := cp.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+}
@@ -0,0 +1,102 @@
+package splitstore
+
+import (
+	"bufio"
+	"io"
+	"os"
+
+	"golang.org/x/xerrors"
+
+	cid "github.com/ipfs/go-cid"
+)
+
+type ColdSetWriter struct {
+	file *os.File
+	buf  *bufio.Writer
+}
+
+type ColdSetReader struct {
+	file *os.File
+	buf  *bufio.Reader
+}
+
+func NewColdSetWriter(path string) (*ColdSetWriter, error) {
+	file, err := os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
+	if err != nil {
+		return nil, xerrors.Errorf("error creating coldset: %w", err)
+	}
+	buf := bufio.NewWriter(file)
+
+	return &ColdSetWriter{
+		file: file,
+		buf:  buf,
+	}, nil
+}
+
+func NewColdSetReader(path string) (*ColdSetReader, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, xerrors.Errorf("error opening coldset: %w", err)
+	}
+	buf := bufio.NewReader(file)
+
+	return &ColdSetReader{
+		file: file,
+		buf:  buf,
+	}, nil
+}
+
+func (s *ColdSetWriter) Write(c cid.Cid) error {
+	return writeRawCid(s.buf, c, false)
+}
+
+func (s *ColdSetWriter) Close() error {
+	if s.file == nil {
+		return nil
+	}
+
+	err1 := s.buf.Flush()
+	err2 := s.file.Close()
+	s.buf = nil
+	s.file = nil
+
+	if err1 != nil {
+		return err1
+	}
+	return err2
+}
+
+func (s *ColdSetReader) ForEach(f func(cid.Cid) error) error {
+	hbuf := make([]byte, 256)
+	for {
+		next, err := readRawCid(s.buf, hbuf)
+		if err != nil {
+			if err == io.EOF {
+				return nil
+			}
+
+			return xerrors.Errorf("error reading coldset: %w", err)
+		}
+
+		if err := f(next); err != nil {
+			return err
+		}
+	}
+}
+
+func (s *ColdSetReader) Reset() error {
+	_, err := s.file.Seek(0, io.SeekStart)
+	return err
+}
+
+func (s *ColdSetReader) Close() error {
+	if s.file == nil {
+		return nil
+	}
+
+	err := s.file.Close()
+	s.file = nil
+	s.buf = nil
+
+	return err
+}
@@ -0,0 +1,90 @@
+package splitstore
+
+import (
+	"fmt"
+	"path/filepath"
+	"testing"
+
+	"github.com/ipfs/go-cid"
+	"github.com/multiformats/go-multihash"
+)
+
+func TestColdSet(t *testing.T) {
+	dir := t.TempDir()
+
+	path := filepath.Join(dir, "coldset")
+
+	makeCid := func(i int) cid.Cid {
+		h, err := multihash.Sum([]byte(fmt.Sprintf("cid.%d", i)), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	const count = 1000
+	cids := make([]cid.Cid, 0, count)
+	for i := 0; i < count; i++ {
+		cids = append(cids, makeCid(i))
+	}
+
+	cw, err := NewColdSetWriter(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	for _, c := range cids {
+		if err := cw.Write(c); err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	if err := cw.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	cr, err := NewColdSetReader(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	index := 0
+	err = cr.ForEach(func(c cid.Cid) error {
+		if index >= count {
+			t.Fatal("too many cids")
+		}
+
+		if !c.Equals(cids[index]) {
+			t.Fatalf("wrong cid %d; expected %s but got %s", index, cids[index], c)
+		}
+
+		index++
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	if err := cr.Reset(); err != nil {
+		t.Fatal(err)
+	}
+
+	index = 0
+	err = cr.ForEach(func(c cid.Cid) error {
+		if index >= count {
+			t.Fatal("too many cids")
+		}
+
+		if !c.Equals(cids[index]) {
+			t.Fatalf("wrong cid; expected %s but got %s", cids[index], c)
+		}
+
+		index++
+		return nil
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+}
@@ -14,15 +14,24 @@ var errMarkSetClosed = errors.New("markset closed")
 type MarkSet interface {
 	ObjectVisitor
 	Mark(cid.Cid) error
+	MarkMany([]cid.Cid) error
 	Has(cid.Cid) (bool, error)
 	Close() error
+
+	// BeginCriticalSection ensures that the markset is persisted to disk for recovery in case
+	// of abnormal termination during the critical section span.
+	BeginCriticalSection() error
+	// EndCriticalSection ends the critical section span.
+	EndCriticalSection()
 }

 type MarkSetEnv interface {
-	// Create creates a new markset within the environment.
-	// name is a unique name for this markset, mapped to the filesystem in disk-backed environments
+	// New creates a new markset within the environment.
+	// name is a unique name for this markset, mapped to the filesystem for on-disk persistence.
 	// sizeHint is a hint about the expected size of the markset
-	Create(name string, sizeHint int64) (MarkSet, error)
+	New(name string, sizeHint int64) (MarkSet, error)
+	// Recover recovers an existing markset persisted on-disk.
+	Recover(name string) (MarkSet, error)
 	// Close closes the markset
 	Close() error
 }
@@ -30,7 +39,7 @@ type MarkSetEnv interface {
 func OpenMarkSetEnv(path string, mtype string) (MarkSetEnv, error) {
 	switch mtype {
 	case "map":
-		return NewMapMarkSetEnv()
+		return NewMapMarkSetEnv(path)
 	case "badger":
 		return NewBadgerMarkSetEnv(path)
 	default:
@@ -3,6 +3,7 @@ package splitstore
 import (
 	"os"
 	"path/filepath"
+	"runtime"
 	"sync"

 	"golang.org/x/xerrors"
@@ -28,6 +29,7 @@ type BadgerMarkSet struct {
 	writers int
 	seqno   int
 	version int
+	persist bool

 	db   *badger.DB
 	path string
@@ -47,11 +49,10 @@ func NewBadgerMarkSetEnv(path string) (MarkSetEnv, error) {
 	return &BadgerMarkSetEnv{path: msPath}, nil
 }

-func (e *BadgerMarkSetEnv) Create(name string, sizeHint int64) (MarkSet, error) {
-	name += ".tmp"
+func (e *BadgerMarkSetEnv) New(name string, sizeHint int64) (MarkSet, error) {
 	path := filepath.Join(e.path, name)

-	db, err := openTransientBadgerDB(path)
+	db, err := openBadgerDB(path, false)
 	if err != nil {
 		return nil, xerrors.Errorf("error creating badger db: %w", err)
 	}
@@ -67,8 +68,72 @@ func (e *BadgerMarkSetEnv) Create(name string, sizeHint int64) (MarkSet, error)
 	return ms, nil
 }

+func (e *BadgerMarkSetEnv) Recover(name string) (MarkSet, error) {
+	path := filepath.Join(e.path, name)
+
+	if _, err := os.Stat(path); err != nil {
+		return nil, xerrors.Errorf("error stating badger db path: %w", err)
+	}
+
+	db, err := openBadgerDB(path, true)
+	if err != nil {
+		return nil, xerrors.Errorf("error creating badger db: %w", err)
+	}
+
+	ms := &BadgerMarkSet{
+		pend:    make(map[string]struct{}),
+		writing: make(map[int]map[string]struct{}),
+		db:      db,
+		path:    path,
+		persist: true,
+	}
+	ms.cond.L = &ms.mx
+
+	return ms, nil
+}
+
 func (e *BadgerMarkSetEnv) Close() error {
-	return os.RemoveAll(e.path)
+	return nil
+}
+
+func (s *BadgerMarkSet) BeginCriticalSection() error {
+	s.mx.Lock()
+
+	if s.persist {
+		s.mx.Unlock()
+		return nil
+	}
+
+	var write bool
+	var seqno int
+	if len(s.pend) > 0 {
+		write = true
+		seqno = s.nextBatch()
+	}
+
+	s.persist = true
+	s.mx.Unlock()
+
+	if write {
+		// all writes sync once perist is true
+		return s.write(seqno)
+	}
+
+	// wait for any pending writes and sync
+	s.mx.Lock()
+	for s.writers > 0 {
+		s.cond.Wait()
+	}
+	s.mx.Unlock()
+
+	return s.db.Sync()
+}
+
+func (s *BadgerMarkSet) EndCriticalSection() {
+	s.mx.Lock()
+	defer s.mx.Unlock()
+
+	s.persist = false
 }

 func (s *BadgerMarkSet) Mark(c cid.Cid) error {
@@ -88,6 +153,23 @@ func (s *BadgerMarkSet) Mark(c cid.Cid) error {
 	return nil
 }

+func (s *BadgerMarkSet) MarkMany(batch []cid.Cid) error {
+	s.mx.Lock()
+	if s.pend == nil {
+		s.mx.Unlock()
+		return errMarkSetClosed
+	}
+
+	write, seqno := s.putMany(batch)
+	s.mx.Unlock()
+
+	if write {
+		return s.write(seqno)
+	}
+
+	return nil
+}
+
 func (s *BadgerMarkSet) Has(c cid.Cid) (bool, error) {
 	s.mx.RLock()
 	defer s.mx.RUnlock()
@@ -193,16 +275,34 @@ func (s *BadgerMarkSet) tryDB(key []byte) (has bool, err error) {
 // writer holds the exclusive lock
 func (s *BadgerMarkSet) put(key string) (write bool, seqno int) {
 	s.pend[key] = struct{}{}
-	if len(s.pend) < badgerMarkSetBatchSize {
+	if !s.persist && len(s.pend) < badgerMarkSetBatchSize {
 		return false, 0
 	}

-	seqno = s.seqno
+	seqno = s.nextBatch()
+	return true, seqno
+}
+
+func (s *BadgerMarkSet) putMany(batch []cid.Cid) (write bool, seqno int) {
+	for _, c := range batch {
+		key := string(c.Hash())
+		s.pend[key] = struct{}{}
+	}
+
+	if !s.persist && len(s.pend) < badgerMarkSetBatchSize {
+		return false, 0
+	}
+
+	seqno = s.nextBatch()
+	return true, seqno
+}
+
+func (s *BadgerMarkSet) nextBatch() int {
+	seqno := s.seqno
 	s.seqno++
 	s.writing[seqno] = s.pend
 	s.pend = make(map[string]struct{})
-
-	return true, seqno
+	return seqno
 }

 func (s *BadgerMarkSet) write(seqno int) (err error) {
@@ -247,6 +347,14 @@ func (s *BadgerMarkSet) write(seqno int) (err error) {
 		return xerrors.Errorf("error flushing batch to badger markset: %w", err)
 	}

+	s.mx.RLock()
+	persist := s.persist
+	s.mx.RUnlock()
+
+	if persist {
+		return s.db.Sync()
+	}
+
 	return nil
 }

@@ -266,26 +374,29 @@ func (s *BadgerMarkSet) Close() error {
 	db := s.db
 	s.db = nil

-	return closeTransientBadgerDB(db, s.path)
+	return closeBadgerDB(db, s.path, s.persist)
 }

-func (s *BadgerMarkSet) SetConcurrent() {}
+func openBadgerDB(path string, recover bool) (*badger.DB, error) {
+	// if it is not a recovery, clean up first
+	if !recover {
+		err := os.RemoveAll(path)
+		if err != nil {
+			return nil, xerrors.Errorf("error clearing markset directory: %w", err)
+		}

-func openTransientBadgerDB(path string) (*badger.DB, error) {
-	// clean up first
-	err := os.RemoveAll(path)
-	if err != nil {
-		return nil, xerrors.Errorf("error clearing markset directory: %w", err)
-	}
-
-	err = os.MkdirAll(path, 0755) //nolint:gosec
-	if err != nil {
-		return nil, xerrors.Errorf("error creating markset directory: %w", err)
+		err = os.MkdirAll(path, 0755) //nolint:gosec
+		if err != nil {
+			return nil, xerrors.Errorf("error creating markset directory: %w", err)
+		}
 	}

 	opts := badger.DefaultOptions(path)
+	// we manually sync when we are in critical section
 	opts.SyncWrites = false
+	// no need to do that
 	opts.CompactL0OnClose = false
+	// we store hashes, not much to gain by compression
 	opts.Compression = options.None
 	// Note: We use FileIO for loading modes to avoid memory thrashing and interference
 	//       between the system blockstore and the markset.
@@ -294,6 +405,15 @@ func openTransientBadgerDB(path string) (*badger.DB, error) {
 	//       exceeded 1GB in size.
 	opts.TableLoadingMode = options.FileIO
 	opts.ValueLogLoadingMode = options.FileIO
+	// We increase the number of L0 tables before compaction to make it unlikely to
+	// be necessary.
+	opts.NumLevelZeroTables = 20      // default is 5
+	opts.NumLevelZeroTablesStall = 30 // default is 10
+	// increase the number of compactors from default 2 so that if we ever have to
+	// compact, it is fast
+	if runtime.NumCPU()/2 > opts.NumCompactors {
+		opts.NumCompactors = runtime.NumCPU() / 2
+	}
 	opts.Logger = &badgerLogger{
 		SugaredLogger: log.Desugar().WithOptions(zap.AddCallerSkip(1)).Sugar(),
 		skip2:         log.Desugar().WithOptions(zap.AddCallerSkip(2)).Sugar(),
@@ -302,12 +422,16 @@ func openTransientBadgerDB(path string) (*badger.DB, error) {
 	return badger.Open(opts)
 }

-func closeTransientBadgerDB(db *badger.DB, path string) error {
+func closeBadgerDB(db *badger.DB, path string, persist bool) error {
 	err := db.Close()
 	if err != nil {
 		return xerrors.Errorf("error closing badger markset: %w", err)
 	}

+	if persist {
+		return nil
+	}
+
 	err = os.RemoveAll(path)
 	if err != nil {
 		return xerrors.Errorf("error deleting badger markset: %w", err)
@@ -1,37 +1,104 @@
 package splitstore

 import (
+	"bufio"
+	"io"
+	"os"
+	"path/filepath"
 	"sync"

+	"golang.org/x/xerrors"
+
 	cid "github.com/ipfs/go-cid"
 )

-type MapMarkSetEnv struct{}
+type MapMarkSetEnv struct {
+	path string
+}

 var _ MarkSetEnv = (*MapMarkSetEnv)(nil)

 type MapMarkSet struct {
 	mx  sync.RWMutex
 	set map[string]struct{}
+
+	persist bool
+	file    *os.File
+	buf     *bufio.Writer
+
+	path string
 }

 var _ MarkSet = (*MapMarkSet)(nil)

-func NewMapMarkSetEnv() (*MapMarkSetEnv, error) {
-	return &MapMarkSetEnv{}, nil
+func NewMapMarkSetEnv(path string) (*MapMarkSetEnv, error) {
+	msPath := filepath.Join(path, "markset.map")
+	err := os.MkdirAll(msPath, 0755) //nolint:gosec
+	if err != nil {
+		return nil, xerrors.Errorf("error creating markset directory: %w", err)
+	}
+
+	return &MapMarkSetEnv{path: msPath}, nil
 }

-func (e *MapMarkSetEnv) Create(name string, sizeHint int64) (MarkSet, error) {
+func (e *MapMarkSetEnv) New(name string, sizeHint int64) (MarkSet, error) {
+	path := filepath.Join(e.path, name)
 	return &MapMarkSet{
-		set: make(map[string]struct{}, sizeHint),
+		set:  make(map[string]struct{}, sizeHint),
+		path: path,
 	}, nil
 }

+func (e *MapMarkSetEnv) Recover(name string) (MarkSet, error) {
+	path := filepath.Join(e.path, name)
+	s := &MapMarkSet{
+		set:  make(map[string]struct{}),
+		path: path,
+	}
+
+	in, err := os.Open(path)
+	if err != nil {
+		return nil, xerrors.Errorf("error opening markset file for read: %w", err)
+	}
+	defer in.Close() //nolint:errcheck
+
+	// wrap a buffered reader to make this faster
+	buf := bufio.NewReader(in)
+	for {
+		var sz byte
+		if sz, err = buf.ReadByte(); err != nil {
+			break
+		}
+
+		key := make([]byte, int(sz))
+		if _, err = io.ReadFull(buf, key); err != nil {
+			break
+		}
+
+		s.set[string(key)] = struct{}{}
+	}
+
+	if err != io.EOF {
+		return nil, xerrors.Errorf("error reading markset file: %w", err)
+	}
+
+	file, err := os.OpenFile(s.path, os.O_WRONLY|os.O_APPEND, 0)
+	if err != nil {
+		return nil, xerrors.Errorf("error opening markset file for write: %w", err)
+	}
+
+	s.persist = true
+	s.file = file
+	s.buf = bufio.NewWriter(file)
+
+	return s, nil
+}
+
 func (e *MapMarkSetEnv) Close() error {
 	return nil
 }

-func (s *MapMarkSet) Mark(cid cid.Cid) error {
+func (s *MapMarkSet) BeginCriticalSection() error {
 	s.mx.Lock()
 	defer s.mx.Unlock()

@@ -39,7 +106,104 @@ func (s *MapMarkSet) Mark(cid cid.Cid) error {
 		return errMarkSetClosed
 	}

-	s.set[string(cid.Hash())] = struct{}{}
+	if s.persist {
+		return nil
+	}
+
+	file, err := os.OpenFile(s.path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0644)
+	if err != nil {
+		return xerrors.Errorf("error opening markset file: %w", err)
+	}
+
+	// wrap a buffered writer to make this faster
+	s.buf = bufio.NewWriter(file)
+	for key := range s.set {
+		if err := s.writeKey([]byte(key), false); err != nil {
+			_ = file.Close()
+			s.buf = nil
+			return err
+		}
+	}
+	if err := s.buf.Flush(); err != nil {
+		_ = file.Close()
+		s.buf = nil
+		return xerrors.Errorf("error flushing markset file buffer: %w", err)
+	}
+
+	s.file = file
+	s.persist = true
+
+	return nil
+}
+
+func (s *MapMarkSet) EndCriticalSection() {
+	s.mx.Lock()
+	defer s.mx.Unlock()
+
+	if !s.persist {
+		return
+	}
+
+	_ = s.file.Close()
+	_ = os.Remove(s.path)
+	s.file = nil
+	s.buf = nil
+	s.persist = false
+}
+
+func (s *MapMarkSet) Mark(c cid.Cid) error {
+	s.mx.Lock()
+	defer s.mx.Unlock()
+
+	if s.set == nil {
+		return errMarkSetClosed
+	}
+
+	hash := c.Hash()
+	s.set[string(hash)] = struct{}{}
+
+	if s.persist {
+		if err := s.writeKey(hash, true); err != nil {
+			return err
+		}
+
+		if err := s.file.Sync(); err != nil {
+			return xerrors.Errorf("error syncing markset: %w", err)
+		}
+	}
+
+	return nil
+}
+
+func (s *MapMarkSet) MarkMany(batch []cid.Cid) error {
+	s.mx.Lock()
+	defer s.mx.Unlock()
+
+	if s.set == nil {
+		return errMarkSetClosed
+	}
+
+	for _, c := range batch {
+		hash := c.Hash()
+		s.set[string(hash)] = struct{}{}
+
+		if s.persist {
+			if err := s.writeKey(hash, false); err != nil {
+				return err
+			}
+		}
+	}
+
+	if s.persist {
+		if err := s.buf.Flush(); err != nil {
+			return xerrors.Errorf("error flushing markset buffer to disk: %w", err)
+		}
+
+		if err := s.file.Sync(); err != nil {
+			return xerrors.Errorf("error syncing markset: %w", err)
+		}
+	}
+
 	return nil
 }

@@ -63,12 +227,23 @@ func (s *MapMarkSet) Visit(c cid.Cid) (bool, error) {
 		return false, errMarkSetClosed
 	}

-	key := string(c.Hash())
+	hash := c.Hash()
+	key := string(hash)
 	if _, ok := s.set[key]; ok {
 		return false, nil
 	}

 	s.set[key] = struct{}{}
+
+	if s.persist {
+		if err := s.writeKey(hash, true); err != nil {
+			return false, err
+		}
+		if err := s.file.Sync(); err != nil {
+			return false, xerrors.Errorf("error syncing markset: %w", err)
+		}
+	}
+
 	return true, nil
 }

@@ -76,6 +251,39 @@ func (s *MapMarkSet) Close() error {
 	s.mx.Lock()
 	defer s.mx.Unlock()

+	if s.set == nil {
+		return nil
+	}
+
 	s.set = nil
+
+	if s.file != nil {
+		if err := s.file.Close(); err != nil {
+			log.Warnf("error closing markset file: %s", err)
+		}
+
+		if !s.persist {
+			if err := os.Remove(s.path); err != nil {
+				log.Warnf("error removing markset file: %s", err)
+			}
+		}
+	}
+
+	return nil
+}
+
+func (s *MapMarkSet) writeKey(k []byte, flush bool) error {
+	if err := s.buf.WriteByte(byte(len(k))); err != nil {
+		return xerrors.Errorf("error writing markset key length to disk: %w", err)
+	}
+	if _, err := s.buf.Write(k); err != nil {
+		return xerrors.Errorf("error writing markset key to disk: %w", err)
+	}
+	if flush {
+		if err := s.buf.Flush(); err != nil {
+			return xerrors.Errorf("error flushing markset buffer to disk: %w", err)
+		}
+	}
+
 	return nil
 }
@@ -1,8 +1,7 @@
+//stm: #unit
 package splitstore

 import (
-	"io/ioutil"
-	"os"
 	"testing"

 	cid "github.com/ipfs/go-cid"
@@ -10,31 +9,32 @@ import (
 )

 func TestMapMarkSet(t *testing.T) {
+	//stm: @SPLITSTORE_MARKSET_CREATE_001, @SPLITSTORE_MARKSET_HAS_001, @@SPLITSTORE_MARKSET_MARK_001
+	//stm: @SPLITSTORE_MARKSET_CLOSE_001, @SPLITSTORE_MARKSET_CREATE_VISITOR_001
 	testMarkSet(t, "map")
+	testMarkSetRecovery(t, "map")
+	testMarkSetMarkMany(t, "map")
 	testMarkSetVisitor(t, "map")
+	testMarkSetVisitorRecovery(t, "map")
 }

 func TestBadgerMarkSet(t *testing.T) {
+	//stm: @SPLITSTORE_MARKSET_CREATE_001, @SPLITSTORE_MARKSET_HAS_001, @@SPLITSTORE_MARKSET_MARK_001
+	//stm: @SPLITSTORE_MARKSET_CLOSE_001, @SPLITSTORE_MARKSET_CREATE_VISITOR_001
 	bs := badgerMarkSetBatchSize
 	badgerMarkSetBatchSize = 1
 	t.Cleanup(func() {
 		badgerMarkSetBatchSize = bs
 	})
 	testMarkSet(t, "badger")
+	testMarkSetRecovery(t, "badger")
+	testMarkSetMarkMany(t, "badger")
 	testMarkSetVisitor(t, "badger")
+	testMarkSetVisitorRecovery(t, "badger")
 }

 func testMarkSet(t *testing.T, lsType string) {
-	t.Helper()
-
-	path, err := ioutil.TempDir("", "markset.*")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	t.Cleanup(func() {
-		_ = os.RemoveAll(path)
-	})
+	path := t.TempDir()

 	env, err := OpenMarkSetEnv(path, lsType)
 	if err != nil {
@@ -42,12 +42,13 @@ func testMarkSet(t *testing.T, lsType string) {
 	}
 	defer env.Close() //nolint:errcheck

-	hotSet, err := env.Create("hot", 0)
+	// stm: @SPLITSTORE_MARKSET_CREATE_001
+	hotSet, err := env.New("hot", 0)
 	if err != nil {
 		t.Fatal(err)
 	}

-	coldSet, err := env.Create("cold", 0)
+	coldSet, err := env.New("cold", 0)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -61,7 +62,9 @@ func testMarkSet(t *testing.T, lsType string) {
 		return cid.NewCidV1(cid.Raw, h)
 	}

+	// stm: @SPLITSTORE_MARKSET_HAS_001
 	mustHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
 		has, err := s.Has(cid)
 		if err != nil {
 			t.Fatal(err)
@@ -73,6 +76,7 @@ func testMarkSet(t *testing.T, lsType string) {
 	}

 	mustNotHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
 		has, err := s.Has(cid)
 		if err != nil {
 			t.Fatal(err)
@@ -88,6 +92,7 @@ func testMarkSet(t *testing.T, lsType string) {
 	k3 := makeCid("c")
 	k4 := makeCid("d")

+	// stm: @SPLITSTORE_MARKSET_MARK_001
 	hotSet.Mark(k1)  //nolint
 	hotSet.Mark(k2)  //nolint
 	coldSet.Mark(k3) //nolint
@@ -114,12 +119,12 @@ func testMarkSet(t *testing.T, lsType string) {
 		t.Fatal(err)
 	}

-	hotSet, err = env.Create("hot", 0)
+	hotSet, err = env.New("hot", 0)
 	if err != nil {
 		t.Fatal(err)
 	}

-	coldSet, err = env.Create("cold", 0)
+	coldSet, err = env.New("cold", 0)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -138,6 +143,7 @@ func testMarkSet(t *testing.T, lsType string) {
 	mustNotHave(coldSet, k3)
 	mustNotHave(coldSet, k4)

+	//stm: @SPLITSTORE_MARKSET_CLOSE_001
 	err = hotSet.Close()
 	if err != nil {
 		t.Fatal(err)
@@ -150,16 +156,7 @@ func testMarkSet(t *testing.T, lsType string) {
 }

 func testMarkSetVisitor(t *testing.T, lsType string) {
-	t.Helper()
-
-	path, err := ioutil.TempDir("", "markset.*")
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	t.Cleanup(func() {
-		_ = os.RemoveAll(path)
-	})
+	path := t.TempDir()

 	env, err := OpenMarkSetEnv(path, lsType)
 	if err != nil {
@@ -167,7 +164,8 @@ func testMarkSetVisitor(t *testing.T, lsType string) {
 	}
 	defer env.Close() //nolint:errcheck

-	visitor, err := env.Create("test", 0)
+	//stm: @SPLITSTORE_MARKSET_CREATE_VISITOR_001
+	visitor, err := env.New("test", 0)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -219,3 +217,301 @@ func testMarkSetVisitor(t *testing.T, lsType string) {
 	mustNotVisit(visitor, k3)
 	mustNotVisit(visitor, k4)
 }
+
+func testMarkSetVisitorRecovery(t *testing.T, lsType string) {
+	path := t.TempDir()
+
+	env, err := OpenMarkSetEnv(path, lsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer env.Close() //nolint:errcheck
+
+	visitor, err := env.New("test", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer visitor.Close() //nolint:errcheck
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustVisit := func(v ObjectVisitor, cid cid.Cid) {
+		visit, err := v.Visit(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !visit {
+			t.Fatal("object should be visited")
+		}
+	}
+
+	mustNotVisit := func(v ObjectVisitor, cid cid.Cid) {
+		visit, err := v.Visit(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if visit {
+			t.Fatal("unexpected visit")
+		}
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	mustVisit(visitor, k1)
+	mustVisit(visitor, k2)
+
+	if err := visitor.BeginCriticalSection(); err != nil {
+		t.Fatal(err)
+	}
+
+	mustVisit(visitor, k3)
+	mustVisit(visitor, k4)
+
+	mustNotVisit(visitor, k1)
+	mustNotVisit(visitor, k2)
+	mustNotVisit(visitor, k3)
+	mustNotVisit(visitor, k4)
+
+	if err := visitor.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	visitor, err = env.Recover("test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mustNotVisit(visitor, k1)
+	mustNotVisit(visitor, k2)
+	mustNotVisit(visitor, k3)
+	mustNotVisit(visitor, k4)
+
+	visitor.EndCriticalSection()
+
+	if err := visitor.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = env.Recover("test")
+	if err == nil {
+		t.Fatal("expected recovery to fail")
+	}
+}
+
+func testMarkSetRecovery(t *testing.T, lsType string) {
+	path := t.TempDir()
+
+	env, err := OpenMarkSetEnv(path, lsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer env.Close() //nolint:errcheck
+
+	markSet, err := env.New("test", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !has {
+			t.Fatal("mark not found")
+		}
+	}
+
+	mustNotHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("unexpected mark")
+		}
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	if err := markSet.Mark(k1); err != nil {
+		t.Fatal(err)
+	}
+	if err := markSet.Mark(k2); err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustNotHave(markSet, k3)
+	mustNotHave(markSet, k4)
+
+	if err := markSet.BeginCriticalSection(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := markSet.Mark(k3); err != nil {
+		t.Fatal(err)
+	}
+	if err := markSet.Mark(k4); err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustHave(markSet, k3)
+	mustHave(markSet, k4)
+
+	if err := markSet.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	markSet, err = env.Recover("test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustHave(markSet, k3)
+	mustHave(markSet, k4)
+
+	markSet.EndCriticalSection()
+
+	if err := markSet.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = env.Recover("test")
+	if err == nil {
+		t.Fatal("expected recovery to fail")
+	}
+}
+
+func testMarkSetMarkMany(t *testing.T, lsType string) {
+	path := t.TempDir()
+
+	env, err := OpenMarkSetEnv(path, lsType)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer env.Close() //nolint:errcheck
+
+	markSet, err := env.New("test", 0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	makeCid := func(key string) cid.Cid {
+		h, err := multihash.Sum([]byte(key), multihash.SHA2_256, -1)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return cid.NewCidV1(cid.Raw, h)
+	}
+
+	mustHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !has {
+			t.Fatal("mark not found")
+		}
+	}
+
+	mustNotHave := func(s MarkSet, cid cid.Cid) {
+		t.Helper()
+		has, err := s.Has(cid)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("unexpected mark")
+		}
+	}
+
+	k1 := makeCid("a")
+	k2 := makeCid("b")
+	k3 := makeCid("c")
+	k4 := makeCid("d")
+
+	if err := markSet.MarkMany([]cid.Cid{k1, k2}); err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustNotHave(markSet, k3)
+	mustNotHave(markSet, k4)
+
+	if err := markSet.BeginCriticalSection(); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := markSet.MarkMany([]cid.Cid{k3, k4}); err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustHave(markSet, k3)
+	mustHave(markSet, k4)
+
+	if err := markSet.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	markSet, err = env.Recover("test")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	mustHave(markSet, k1)
+	mustHave(markSet, k2)
+	mustHave(markSet, k3)
+	mustHave(markSet, k4)
+
+	markSet.EndCriticalSection()
+
+	if err := markSet.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = env.Recover("test")
+	if err == nil {
+		t.Fatal("expected recovery to fail")
+	}
+}
@@ -129,8 +129,6 @@ type SplitStore struct {

 	headChangeMx sync.Mutex

-	coldPurgeSize int
-
 	chain ChainAccessor
 	ds    dstore.Datastore
 	cold  bstore.Blockstore
@@ -158,6 +156,17 @@ type SplitStore struct {
 	txnRefsMx       sync.Mutex
 	txnRefs         map[cid.Cid]struct{}
 	txnMissing      map[cid.Cid]struct{}
+	txnMarkSet      MarkSet
+	txnSyncMx       sync.Mutex
+	txnSyncCond     sync.Cond
+	txnSync         bool
+
+	// background cold object reification
+	reifyWorkers    sync.WaitGroup
+	reifyMx         sync.Mutex
+	reifyCond       sync.Cond
+	reifyPend       map[cid.Cid]struct{}
+	reifyInProgress map[cid.Cid]struct{}

 	// registered protectors
 	protectors []func(func(cid.Cid) error) error
@@ -194,13 +203,16 @@ func Open(path string, ds dstore.Datastore, hot, cold bstore.Blockstore, cfg *Co
 		cold:       cold,
 		hot:        hots,
 		markSetEnv: markSetEnv,
-
-		coldPurgeSize: defaultColdPurgeSize,
 	}

 	ss.txnViewsCond.L = &ss.txnViewsMx
+	ss.txnSyncCond.L = &ss.txnSyncMx
 	ss.ctx, ss.cancel = context.WithCancel(context.Background())

+	ss.reifyCond.L = &ss.reifyMx
+	ss.reifyPend = make(map[cid.Cid]struct{})
+	ss.reifyInProgress = make(map[cid.Cid]struct{})
+
 	if enableDebugLog {
 		ss.debug, err = openDebugLog(path)
 		if err != nil {
@@ -208,6 +220,14 @@ func Open(path string, ds dstore.Datastore, hot, cold bstore.Blockstore, cfg *Co
 		}
 	}

+	if ss.checkpointExists() {
+		log.Info("found compaction checkpoint; resuming compaction")
+		if err := ss.completeCompaction(); err != nil {
+			markSetEnv.Close() //nolint:errcheck
+			return nil, xerrors.Errorf("error resuming compaction: %w", err)
+		}
+	}
+
 	return ss, nil
 }

@@ -230,6 +250,20 @@ func (s *SplitStore) Has(ctx context.Context, cid cid.Cid) (bool, error) {
 	s.txnLk.RLock()
 	defer s.txnLk.RUnlock()

+	// critical section
+	if s.txnMarkSet != nil {
+		has, err := s.txnMarkSet.Has(cid)
+		if err != nil {
+			return false, err
+		}
+
+		if has {
+			return s.has(cid)
+		}
+
+		return s.cold.Has(ctx, cid)
+	}
+
 	has, err := s.hot.Has(ctx, cid)

 	if err != nil {
@@ -241,7 +275,13 @@ func (s *SplitStore) Has(ctx context.Context, cid cid.Cid) (bool, error) {
 		return true, nil
 	}

-	return s.cold.Has(ctx, cid)
+	has, err = s.cold.Has(ctx, cid)
+	if has && bstore.IsHotView(ctx) {
+		s.reifyColdObject(cid)
+	}
+
+	return has, err
+
 }

 func (s *SplitStore) Get(ctx context.Context, cid cid.Cid) (blocks.Block, error) {
@@ -257,6 +297,20 @@ func (s *SplitStore) Get(ctx context.Context, cid cid.Cid) (blocks.Block, error)
 	s.txnLk.RLock()
 	defer s.txnLk.RUnlock()

+	// critical section
+	if s.txnMarkSet != nil {
+		has, err := s.txnMarkSet.Has(cid)
+		if err != nil {
+			return nil, err
+		}
+
+		if has {
+			return s.get(cid)
+		}
+
+		return s.cold.Get(ctx, cid)
+	}
+
 	blk, err := s.hot.Get(ctx, cid)

 	switch err {
@@ -271,8 +325,11 @@ func (s *SplitStore) Get(ctx context.Context, cid cid.Cid) (blocks.Block, error)

 		blk, err = s.cold.Get(ctx, cid)
 		if err == nil {
-			stats.Record(s.ctx, metrics.SplitstoreMiss.M(1))
+			if bstore.IsHotView(ctx) {
+				s.reifyColdObject(cid)
+			}

+			stats.Record(s.ctx, metrics.SplitstoreMiss.M(1))
 		}
 		return blk, err

@@ -294,6 +351,20 @@ func (s *SplitStore) GetSize(ctx context.Context, cid cid.Cid) (int, error) {
 	s.txnLk.RLock()
 	defer s.txnLk.RUnlock()

+	// critical section
+	if s.txnMarkSet != nil {
+		has, err := s.txnMarkSet.Has(cid)
+		if err != nil {
+			return 0, err
+		}
+
+		if has {
+			return s.getSize(cid)
+		}
+
+		return s.cold.GetSize(ctx, cid)
+	}
+
 	size, err := s.hot.GetSize(ctx, cid)

 	switch err {
@@ -308,6 +379,10 @@ func (s *SplitStore) GetSize(ctx context.Context, cid cid.Cid) (int, error) {

 		size, err = s.cold.GetSize(ctx, cid)
 		if err == nil {
+			if bstore.IsHotView(ctx) {
+				s.reifyColdObject(cid)
+			}
+
 			stats.Record(s.ctx, metrics.SplitstoreMiss.M(1))
 		}
 		return size, err
@@ -332,6 +407,12 @@ func (s *SplitStore) Put(ctx context.Context, blk blocks.Block) error {

 	s.debug.LogWrite(blk)

+	// critical section
+	if s.txnMarkSet != nil {
+		s.markLiveRefs([]cid.Cid{blk.Cid()})
+		return nil
+	}
+
 	s.trackTxnRef(blk.Cid())
 	return nil
 }
@@ -377,6 +458,12 @@ func (s *SplitStore) PutMany(ctx context.Context, blks []blocks.Block) error {

 	s.debug.LogWriteMany(blks)

+	// critical section
+	if s.txnMarkSet != nil {
+		s.markLiveRefs(batch)
+		return nil
+	}
+
 	s.trackTxnRefMany(batch)
 	return nil
 }
@@ -436,6 +523,23 @@ func (s *SplitStore) View(ctx context.Context, cid cid.Cid, cb func([]byte) erro
 		return cb(data)
 	}

+	// critical section
+	s.txnLk.RLock() // the lock is released in protectView if we are not in critical section
+	if s.txnMarkSet != nil {
+		has, err := s.txnMarkSet.Has(cid)
+		s.txnLk.RUnlock()
+
+		if err != nil {
+			return err
+		}
+
+		if has {
+			return s.view(cid, cb)
+		}
+
+		return s.cold.View(ctx, cid, cb)
+	}
+
 	// views are (optimistically) protected two-fold:
 	// - if there is an active transaction, then the reference is protected.
 	// - if there is no active transaction, active views are tracked in a
@@ -456,6 +560,10 @@ func (s *SplitStore) View(ctx context.Context, cid cid.Cid, cb func([]byte) erro

 		err = s.cold.View(ctx, cid, cb)
 		if err == nil {
+			if bstore.IsHotView(ctx) {
+				s.reifyColdObject(cid)
+			}
+
 			stats.Record(s.ctx, metrics.SplitstoreMiss.M(1))
 		}
 		return err
@@ -565,6 +673,9 @@ func (s *SplitStore) Start(chain ChainAccessor, us stmgr.UpgradeSchedule) error
 		}
 	}

+	// spawn the reifier
+	go s.reifyOrchestrator()
+
 	// watch the chain
 	chain.SubscribeHeadChanges(s.HeadChange)

@@ -585,12 +696,19 @@ func (s *SplitStore) Close() error {
 	}

 	if atomic.LoadInt32(&s.compacting) == 1 {
+		s.txnSyncMx.Lock()
+		s.txnSync = true
+		s.txnSyncCond.Broadcast()
+		s.txnSyncMx.Unlock()
+
 		log.Warn("close with ongoing compaction in progress; waiting for it to finish...")
 		for atomic.LoadInt32(&s.compacting) == 1 {
 			time.Sleep(time.Second)
 		}
 	}

+	s.reifyCond.Broadcast()
+	s.reifyWorkers.Wait()
 	s.cancel()
 	return multierr.Combine(s.markSetEnv.Close(), s.debug.Close())
 }
@@ -89,7 +89,7 @@ func (s *SplitStore) doCheck(curTs *types.TipSet) error {
 	coldCnt := new(int64)
 	missingCnt := new(int64)

-	visitor, err := s.markSetEnv.Create("check", 0)
+	visitor, err := s.markSetEnv.New("check", 0)
 	if err != nil {
 		return xerrors.Errorf("error creating visitor: %w", err)
 	}
@@ -3,8 +3,9 @@ package splitstore
 import (
 	"bytes"
 	"errors"
+	"os"
+	"path/filepath"
 	"runtime"
-	"sort"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -48,6 +49,10 @@ var (
 	// SyncGapTime is the time delay from a tipset's min timestamp before we decide
 	// there is a sync gap
 	SyncGapTime = time.Minute
+
+	// SyncWaitTime is the time delay from a tipset's min timestamp before we decide
+	// we have synced.
+	SyncWaitTime = 30 * time.Second
 )

 var (
@@ -57,8 +62,6 @@ var (

 const (
 	batchSize = 16384
-
-	defaultColdPurgeSize = 7_000_000
 )

 func (s *SplitStore) HeadChange(_, apply []*types.TipSet) error {
@@ -141,9 +144,9 @@ func (s *SplitStore) isNearUpgrade(epoch abi.ChainEpoch) bool {
 // transactionally protect incoming tipsets
 func (s *SplitStore) protectTipSets(apply []*types.TipSet) {
 	s.txnLk.RLock()
-	defer s.txnLk.RUnlock()

 	if !s.txnActive {
+		s.txnLk.RUnlock()
 		return
 	}

@@ -152,12 +155,115 @@ func (s *SplitStore) protectTipSets(apply []*types.TipSet) {
 		cids = append(cids, ts.Cids()...)
 	}

+	if len(cids) == 0 {
+		s.txnLk.RUnlock()
+		return
+	}
+
+	// critical section
+	if s.txnMarkSet != nil {
+		curTs := apply[len(apply)-1]
+		timestamp := time.Unix(int64(curTs.MinTimestamp()), 0)
+		doSync := time.Since(timestamp) < SyncWaitTime
+		go func() {
+			if doSync {
+				defer func() {
+					s.txnSyncMx.Lock()
+					defer s.txnSyncMx.Unlock()
+					s.txnSync = true
+					s.txnSyncCond.Broadcast()
+				}()
+			}
+			defer s.txnLk.RUnlock()
+			s.markLiveRefs(cids)
+
+		}()
+		return
+	}
+
 	s.trackTxnRefMany(cids)
+	s.txnLk.RUnlock()
+}
+
+func (s *SplitStore) markLiveRefs(cids []cid.Cid) {
+	log.Debugf("marking %d live refs", len(cids))
+	startMark := time.Now()
+
+	count := new(int32)
+	visitor := newConcurrentVisitor()
+	walkObject := func(c cid.Cid) error {
+		return s.walkObjectIncomplete(c, visitor,
+			func(c cid.Cid) error {
+				if isUnitaryObject(c) {
+					return errStopWalk
+				}
+
+				visit, err := s.txnMarkSet.Visit(c)
+				if err != nil {
+					return xerrors.Errorf("error visiting object: %w", err)
+				}
+
+				if !visit {
+					return errStopWalk
+				}
+
+				atomic.AddInt32(count, 1)
+				return nil
+			},
+			func(missing cid.Cid) error {
+				log.Warnf("missing object reference %s in %s", missing, c)
+				return errStopWalk
+			})
+	}
+
+	// optimize the common case of single put
+	if len(cids) == 1 {
+		if err := walkObject(cids[0]); err != nil {
+			log.Errorf("error marking tipset refs: %s", err)
+		}
+		log.Debugw("marking live refs done", "took", time.Since(startMark), "marked", *count)
+		return
+	}
+
+	workch := make(chan cid.Cid, len(cids))
+	for _, c := range cids {
+		workch <- c
+	}
+	close(workch)
+
+	worker := func() error {
+		for c := range workch {
+			if err := walkObject(c); err != nil {
+				return err
+			}
+		}
+
+		return nil
+	}
+
+	workers := runtime.NumCPU() / 2
+	if workers < 2 {
+		workers = 2
+	}
+	if workers > len(cids) {
+		workers = len(cids)
+	}
+
+	g := new(errgroup.Group)
+	for i := 0; i < workers; i++ {
+		g.Go(worker)
+	}
+
+	if err := g.Wait(); err != nil {
+		log.Errorf("error marking tipset refs: %s", err)
+	}
+
+	log.Debugw("marking live refs done", "took", time.Since(startMark), "marked", *count)
 }

 // transactionally protect a view
 func (s *SplitStore) protectView(c cid.Cid) {
-	s.txnLk.RLock()
+	//  the txnLk is held for read
 	defer s.txnLk.RUnlock()

 	if s.txnActive {
@@ -387,6 +493,12 @@ func (s *SplitStore) compact(curTs *types.TipSet) {
 }

 func (s *SplitStore) doCompact(curTs *types.TipSet) error {
+	if s.checkpointExists() {
+		// this really shouldn't happen, but if it somehow does, it means that the hotstore
+		// might be potentially inconsistent; abort compaction and notify the user to intervene.
+		return xerrors.Errorf("checkpoint exists; aborting compaction")
+	}
+
 	currentEpoch := curTs.Height()
 	boundaryEpoch := currentEpoch - CompactionBoundary

@@ -398,7 +510,7 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {

 	log.Infow("running compaction", "currentEpoch", currentEpoch, "baseEpoch", s.baseEpoch, "boundaryEpoch", boundaryEpoch, "inclMsgsEpoch", inclMsgsEpoch, "compactionIndex", s.compactionIndex)

-	markSet, err := s.markSetEnv.Create("live", s.markSetSize)
+	markSet, err := s.markSetEnv.New("live", s.markSetSize)
 	if err != nil {
 		return xerrors.Errorf("error creating mark set: %w", err)
 	}
@@ -409,9 +521,6 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		return err
 	}

-	// we are ready for concurrent marking
-	s.beginTxnMarking(markSet)
-
 	// 0. track all protected references at beginning of compaction; anything added later should
 	//    be transactionally protected by the write
 	log.Info("protecting references with registered protectors")
@@ -425,7 +534,7 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 	log.Info("marking reachable objects")
 	startMark := time.Now()

-	var count int64
+	count := new(int64)
 	err = s.walkChain(curTs, boundaryEpoch, inclMsgsEpoch, &noopVisitor{},
 		func(c cid.Cid) error {
 			if isUnitaryObject(c) {
@@ -441,7 +550,7 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 				return errStopWalk
 			}

-			count++
+			atomic.AddInt64(count, 1)
 			return nil
 		})

@@ -449,9 +558,9 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		return xerrors.Errorf("error marking: %w", err)
 	}

-	s.markSetSize = count + count>>2 // overestimate a bit
+	s.markSetSize = *count + *count>>2 // overestimate a bit

-	log.Infow("marking done", "took", time.Since(startMark), "marked", count)
+	log.Infow("marking done", "took", time.Since(startMark), "marked", *count)

 	if err := s.checkClosing(); err != nil {
 		return err
@@ -471,10 +580,15 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 	log.Info("collecting cold objects")
 	startCollect := time.Now()

+	coldw, err := NewColdSetWriter(s.coldSetPath())
+	if err != nil {
+		return xerrors.Errorf("error creating coldset: %w", err)
+	}
+	defer coldw.Close() //nolint:errcheck
+
 	// some stats for logging
 	var hotCnt, coldCnt int

-	cold := make([]cid.Cid, 0, s.coldPurgeSize)
 	err = s.hot.ForEachKey(func(c cid.Cid) error {
 		// was it marked?
 		mark, err := markSet.Has(c)
@@ -488,7 +602,9 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		}

 		// it's cold, mark it as candidate for move
-		cold = append(cold, c)
+		if err := coldw.Write(c); err != nil {
+			return xerrors.Errorf("error writing cid to coldstore: %w", err)
+		}
 		coldCnt++

 		return nil
@@ -498,12 +614,12 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		return xerrors.Errorf("error collecting cold objects: %w", err)
 	}

-	log.Infow("cold collection done", "took", time.Since(startCollect))
-
-	if coldCnt > 0 {
-		s.coldPurgeSize = coldCnt + coldCnt>>2 // overestimate a bit
+	if err := coldw.Close(); err != nil {
+		return xerrors.Errorf("error closing coldset: %w", err)
 	}

+	log.Infow("cold collection done", "took", time.Since(startCollect))
+
 	log.Infow("compaction stats", "hot", hotCnt, "cold", coldCnt)
 	stats.Record(s.ctx, metrics.SplitstoreCompactionHot.M(int64(hotCnt)))
 	stats.Record(s.ctx, metrics.SplitstoreCompactionCold.M(int64(coldCnt)))
@@ -521,11 +637,17 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		return err
 	}

+	coldr, err := NewColdSetReader(s.coldSetPath())
+	if err != nil {
+		return xerrors.Errorf("error opening coldset: %w", err)
+	}
+	defer coldr.Close() //nolint:errcheck
+
 	// 3. copy the cold objects to the coldstore -- if we have one
 	if !s.cfg.DiscardColdBlocks {
 		log.Info("moving cold objects to the coldstore")
 		startMove := time.Now()
-		err = s.moveColdBlocks(cold)
+		err = s.moveColdBlocks(coldr)
 		if err != nil {
 			return xerrors.Errorf("error moving cold objects: %w", err)
 		}
@@ -534,41 +656,64 @@ func (s *SplitStore) doCompact(curTs *types.TipSet) error {
 		if err := s.checkClosing(); err != nil {
 			return err
 		}
+
+		if err := coldr.Reset(); err != nil {
+			return xerrors.Errorf("error resetting coldset: %w", err)
+		}
 	}

-	// 4. sort cold objects so that the dags with most references are deleted first
-	//    this ensures that we can't refer to a dag with its consituents already deleted, ie
-	//    we lave no dangling references.
-	log.Info("sorting cold objects")
-	startSort := time.Now()
-	err = s.sortObjects(cold)
-	if err != nil {
-		return xerrors.Errorf("error sorting objects: %w", err)
-	}
-	log.Infow("sorting done", "took", time.Since(startSort))
-
-	// 4.1 protect transactional refs once more
-	//     strictly speaking, this is not necessary as purge will do it before deleting each
-	//     batch.  however, there is likely a largish number of references accumulated during
-	//     ths sort and this protects before entering pruge context.
-	err = s.protectTxnRefs(markSet)
-	if err != nil {
-		return xerrors.Errorf("error protecting transactional refs: %w", err)
+	// 4. Purge cold objects with checkpointing for recovery.
+	// This is the critical section of compaction, whereby any cold object not in the markSet is
+	// considered already deleted.
+	// We delete cold objects in batches, holding the transaction lock, where we check the markSet
+	// again for new references created by the VM.
+	// After each batch, we write a checkpoint to disk; if the process is interrupted before completion,
+	// the process will continue from the checkpoint in the next recovery.
+	if err := s.beginCriticalSection(markSet); err != nil {
+		return xerrors.Errorf("error beginning critical section: %w", err)
 	}

 	if err := s.checkClosing(); err != nil {
 		return err
 	}

+	// wait for the head to catch up so that the current tipset is marked
+	s.waitForSync()
+
+	if err := s.checkClosing(); err != nil {
+		return err
+	}
+
+	checkpoint, err := NewCheckpoint(s.checkpointPath())
+	if err != nil {
+		return xerrors.Errorf("error creating checkpoint: %w", err)
+	}
+	defer checkpoint.Close() //nolint:errcheck
+
 	// 5. purge cold objects from the hotstore, taking protected references into account
 	log.Info("purging cold objects from the hotstore")
 	startPurge := time.Now()
-	err = s.purge(cold, markSet)
+	err = s.purge(coldr, checkpoint, markSet)
 	if err != nil {
-		return xerrors.Errorf("error purging cold blocks: %w", err)
+		return xerrors.Errorf("error purging cold objects: %w", err)
 	}
 	log.Infow("purging cold objects from hotstore done", "took", time.Since(startPurge))

+	s.endCriticalSection()
+
+	if err := checkpoint.Close(); err != nil {
+		log.Warnf("error closing checkpoint: %s", err)
+	}
+	if err := os.Remove(s.checkpointPath()); err != nil {
+		log.Warnf("error removing checkpoint: %s", err)
+	}
+	if err := coldr.Close(); err != nil {
+		log.Warnf("error closing coldset: %s", err)
+	}
+	if err := os.Remove(s.coldSetPath()); err != nil {
+		log.Warnf("error removing coldset: %s", err)
+	}
+
 	// we are done; do some housekeeping
 	s.endTxnProtect()
 	s.gcHotstore()
@@ -599,12 +744,51 @@ func (s *SplitStore) beginTxnProtect() {
 	defer s.txnLk.Unlock()

 	s.txnActive = true
+	s.txnSync = false
 	s.txnRefs = make(map[cid.Cid]struct{})
 	s.txnMissing = make(map[cid.Cid]struct{})
 }

-func (s *SplitStore) beginTxnMarking(markSet MarkSet) {
-	log.Info("beginning transactional marking")
+func (s *SplitStore) beginCriticalSection(markSet MarkSet) error {
+	log.Info("beginning critical section")
+
+	// do that once first to get the bulk before the markset is in critical section
+	if err := s.protectTxnRefs(markSet); err != nil {
+		return xerrors.Errorf("error protecting transactional references: %w", err)
+	}
+
+	if err := markSet.BeginCriticalSection(); err != nil {
+		return xerrors.Errorf("error beginning critical section for markset: %w", err)
+	}
+
+	s.txnLk.Lock()
+	defer s.txnLk.Unlock()
+
+	s.txnMarkSet = markSet
+
+	// and do it again while holding the lock to mark references that might have been created
+	// in the meantime and avoid races of the type Has->txnRef->enterCS->Get fails because
+	// it's not in the markset
+	if err := s.protectTxnRefs(markSet); err != nil {
+		return xerrors.Errorf("error protecting transactional references: %w", err)
+	}
+
+	return nil
+}
+
+func (s *SplitStore) waitForSync() {
+	log.Info("waiting for sync")
+	startWait := time.Now()
+	defer func() {
+		log.Infow("waiting for sync done", "took", time.Since(startWait))
+	}()
+
+	s.txnSyncMx.Lock()
+	defer s.txnSyncMx.Unlock()
+
+	for !s.txnSync {
+		s.txnSyncCond.Wait()
+	}
 }

 func (s *SplitStore) endTxnProtect() {
@@ -616,8 +800,20 @@ func (s *SplitStore) endTxnProtect() {
 	}

 	s.txnActive = false
+	s.txnSync = false
 	s.txnRefs = nil
 	s.txnMissing = nil
+	s.txnMarkSet = nil
+}
+
+func (s *SplitStore) endCriticalSection() {
+	log.Info("ending critical section")
+
+	s.txnLk.Lock()
+	defer s.txnLk.Unlock()
+
+	s.txnMarkSet.EndCriticalSection()
+	s.txnMarkSet = nil
 }

 func (s *SplitStore) walkChain(ts *types.TipSet, inclState, inclMsgs abi.ChainEpoch,
@@ -857,7 +1053,7 @@ func (s *SplitStore) walkObjectIncomplete(c cid.Cid, visitor ObjectVisitor, f, m
 	return nil
 }

-// internal version used by walk
+// internal version used during compaction and related operations
 func (s *SplitStore) view(c cid.Cid, cb func([]byte) error) error {
 	if isIdentiyCid(c) {
 		data, err := decodeIdentityCid(c)
@@ -892,10 +1088,34 @@ func (s *SplitStore) has(c cid.Cid) (bool, error) {
 	return s.cold.Has(s.ctx, c)
 }

-func (s *SplitStore) moveColdBlocks(cold []cid.Cid) error {
+func (s *SplitStore) get(c cid.Cid) (blocks.Block, error) {
+	blk, err := s.hot.Get(s.ctx, c)
+	switch err {
+	case nil:
+		return blk, nil
+	case bstore.ErrNotFound:
+		return s.cold.Get(s.ctx, c)
+	default:
+		return nil, err
+	}
+}
+
+func (s *SplitStore) getSize(c cid.Cid) (int, error) {
+	sz, err := s.hot.GetSize(s.ctx, c)
+	switch err {
+	case nil:
+		return sz, nil
+	case bstore.ErrNotFound:
+		return s.cold.GetSize(s.ctx, c)
+	default:
+		return 0, err
+	}
+}
+
+func (s *SplitStore) moveColdBlocks(coldr *ColdSetReader) error {
 	batch := make([]blocks.Block, 0, batchSize)

-	for _, c := range cold {
+	err := coldr.ForEach(func(c cid.Cid) error {
 		if err := s.checkClosing(); err != nil {
 			return err
 		}
@@ -904,7 +1124,7 @@ func (s *SplitStore) moveColdBlocks(cold []cid.Cid) error {
 		if err != nil {
 			if err == bstore.ErrNotFound {
 				log.Warnf("hotstore missing block %s", c)
-				continue
+				return nil
 			}

 			return xerrors.Errorf("error retrieving block %s from hotstore: %w", c, err)
@@ -918,6 +1138,12 @@ func (s *SplitStore) moveColdBlocks(cold []cid.Cid) error {
 			}
 			batch = batch[:0]
 		}
+
+		return nil
+	})
+
+	if err != nil {
+		return xerrors.Errorf("error iterating coldset: %w", err)
 	}

 	if len(batch) > 0 {
@@ -930,177 +1156,202 @@ func (s *SplitStore) moveColdBlocks(cold []cid.Cid) error {
 	return nil
 }

-// sorts a slice of objects heaviest first -- it's a little expensive but worth the
-// guarantee that we don't leave dangling references behind, e.g. if we die in the middle
-// of a purge.
-func (s *SplitStore) sortObjects(cids []cid.Cid) error {
-	// we cache the keys to avoid making a gazillion of strings
-	keys := make(map[cid.Cid]string)
-	key := func(c cid.Cid) string {
-		s, ok := keys[c]
-		if !ok {
-			s = string(c.Hash())
-			keys[c] = s
-		}
-		return s
-	}
-
-	// compute sorting weights as the cumulative number of DAG links
-	weights := make(map[string]int)
-	for _, c := range cids {
-		// this can take quite a while, so check for shutdown with every opportunity
-		if err := s.checkClosing(); err != nil {
-			return err
-		}
-
-		w := s.getObjectWeight(c, weights, key)
-		weights[key(c)] = w
-	}
-
-	// sort!
-	sort.Slice(cids, func(i, j int) bool {
-		wi := weights[key(cids[i])]
-		wj := weights[key(cids[j])]
-		if wi == wj {
-			return bytes.Compare(cids[i].Hash(), cids[j].Hash()) > 0
-		}
-
-		return wi > wj
-	})
-
-	return nil
-}
-
-func (s *SplitStore) getObjectWeight(c cid.Cid, weights map[string]int, key func(cid.Cid) string) int {
-	w, ok := weights[key(c)]
-	if ok {
-		return w
-	}
-
-	// we treat block headers specially to avoid walking the entire chain
-	var hdr types.BlockHeader
-	err := s.view(c, func(data []byte) error {
-		return hdr.UnmarshalCBOR(bytes.NewBuffer(data))
-	})
-	if err == nil {
-		w1 := s.getObjectWeight(hdr.ParentStateRoot, weights, key)
-		weights[key(hdr.ParentStateRoot)] = w1
-
-		w2 := s.getObjectWeight(hdr.Messages, weights, key)
-		weights[key(hdr.Messages)] = w2
-
-		return 1 + w1 + w2
-	}
-
-	var links []cid.Cid
-	err = s.view(c, func(data []byte) error {
-		return cbg.ScanForLinks(bytes.NewReader(data), func(c cid.Cid) {
-			links = append(links, c)
-		})
-	})
-	if err != nil {
-		return 1
-	}
-
-	w = 1
-	for _, c := range links {
-		// these are internal refs, so dags will be dags
-		if c.Prefix().Codec != cid.DagCBOR {
-			w++
-			continue
-		}
-
-		wc := s.getObjectWeight(c, weights, key)
-		weights[key(c)] = wc
-
-		w += wc
-	}
-
-	return w
-}
-
-func (s *SplitStore) purgeBatch(cids []cid.Cid, deleteBatch func([]cid.Cid) error) error {
-	if len(cids) == 0 {
-		return nil
-	}
-
-	// we don't delete one giant batch of millions of objects, but rather do smaller batches
-	// so that we don't stop the world for an extended period of time
-	done := false
-	for i := 0; !done; i++ {
-		start := i * batchSize
-		end := start + batchSize
-		if end >= len(cids) {
-			end = len(cids)
-			done = true
-		}
-
-		err := deleteBatch(cids[start:end])
-		if err != nil {
-			return xerrors.Errorf("error deleting batch: %w", err)
-		}
-	}
-
-	return nil
-}
-
-func (s *SplitStore) purge(cids []cid.Cid, markSet MarkSet) error {
+func (s *SplitStore) purge(coldr *ColdSetReader, checkpoint *Checkpoint, markSet MarkSet) error {
+	batch := make([]cid.Cid, 0, batchSize)
 	deadCids := make([]cid.Cid, 0, batchSize)
+
 	var purgeCnt, liveCnt int
 	defer func() {
 		log.Infow("purged cold objects", "purged", purgeCnt, "live", liveCnt)
 	}()

-	return s.purgeBatch(cids,
-		func(cids []cid.Cid) error {
-			deadCids := deadCids[:0]
+	deleteBatch := func() error {
+		pc, lc, err := s.purgeBatch(batch, deadCids, checkpoint, markSet)

-			for {
-				if err := s.checkClosing(); err != nil {
-					return err
-				}
+		purgeCnt += pc
+		liveCnt += lc
+		batch = batch[:0]

-				s.txnLk.Lock()
-				if len(s.txnRefs) == 0 {
-					// keep the lock!
-					break
-				}
+		return err
+	}

-				// unlock and protect
-				s.txnLk.Unlock()
+	err := coldr.ForEach(func(c cid.Cid) error {
+		batch = append(batch, c)
+		if len(batch) == batchSize {
+			return deleteBatch()
+		}

-				err := s.protectTxnRefs(markSet)
-				if err != nil {
-					return xerrors.Errorf("error protecting transactional refs: %w", err)
-				}
+		return nil
+	})
+
+	if err != nil {
+		return err
+	}
+
+	if len(batch) > 0 {
+		return deleteBatch()
+	}
+
+	return nil
+}
+
+func (s *SplitStore) purgeBatch(batch, deadCids []cid.Cid, checkpoint *Checkpoint, markSet MarkSet) (purgeCnt int, liveCnt int, err error) {
+	if err := s.checkClosing(); err != nil {
+		return 0, 0, err
+	}
+
+	s.txnLk.Lock()
+	defer s.txnLk.Unlock()
+
+	for _, c := range batch {
+		has, err := markSet.Has(c)
+		if err != nil {
+			return 0, 0, xerrors.Errorf("error checking markset for liveness: %w", err)
+		}
+
+		if has {
+			liveCnt++
+			continue
+		}
+
+		deadCids = append(deadCids, c)
+	}
+
+	if len(deadCids) == 0 {
+		if err := checkpoint.Set(batch[len(batch)-1]); err != nil {
+			return 0, 0, xerrors.Errorf("error setting checkpoint: %w", err)
+		}
+
+		return 0, liveCnt, nil
+	}
+
+	if err := s.hot.DeleteMany(s.ctx, deadCids); err != nil {
+		return 0, liveCnt, xerrors.Errorf("error purging cold objects: %w", err)
+	}
+
+	s.debug.LogDelete(deadCids)
+	purgeCnt = len(deadCids)
+
+	if err := checkpoint.Set(batch[len(batch)-1]); err != nil {
+		return purgeCnt, liveCnt, xerrors.Errorf("error setting checkpoint: %w", err)
+	}
+
+	return purgeCnt, liveCnt, nil
+}
+
+func (s *SplitStore) coldSetPath() string {
+	return filepath.Join(s.path, "coldset")
+}
+
+func (s *SplitStore) checkpointPath() string {
+	return filepath.Join(s.path, "checkpoint")
+}
+
+func (s *SplitStore) checkpointExists() bool {
+	_, err := os.Stat(s.checkpointPath())
+	return err == nil
+}
+
+func (s *SplitStore) completeCompaction() error {
+	checkpoint, last, err := OpenCheckpoint(s.checkpointPath())
+	if err != nil {
+		return xerrors.Errorf("error opening checkpoint: %w", err)
+	}
+	defer checkpoint.Close() //nolint:errcheck
+
+	coldr, err := NewColdSetReader(s.coldSetPath())
+	if err != nil {
+		return xerrors.Errorf("error opening coldset: %w", err)
+	}
+	defer coldr.Close() //nolint:errcheck
+
+	markSet, err := s.markSetEnv.Recover("live")
+	if err != nil {
+		return xerrors.Errorf("error recovering markset: %w", err)
+	}
+	defer markSet.Close() //nolint:errcheck
+
+	// PURGE
+	log.Info("purging cold objects from the hotstore")
+	startPurge := time.Now()
+	err = s.completePurge(coldr, checkpoint, last, markSet)
+	if err != nil {
+		return xerrors.Errorf("error purging cold objects: %w", err)
+	}
+	log.Infow("purging cold objects from hotstore done", "took", time.Since(startPurge))
+
+	markSet.EndCriticalSection()
+
+	if err := checkpoint.Close(); err != nil {
+		log.Warnf("error closing checkpoint: %s", err)
+	}
+	if err := os.Remove(s.checkpointPath()); err != nil {
+		log.Warnf("error removing checkpoint: %s", err)
+	}
+	if err := coldr.Close(); err != nil {
+		log.Warnf("error closing coldset: %s", err)
+	}
+	if err := os.Remove(s.coldSetPath()); err != nil {
+		log.Warnf("error removing coldset: %s", err)
+	}
+
+	// Note: at this point we can start the splitstore; a compaction should run on
+	//       the first head change, which will trigger gc on the hotstore.
+	//       We don't mind the second (back-to-back) compaction as the head will
+	//       have advanced during marking and coldset accumulation.
+	return nil
+}
+
+func (s *SplitStore) completePurge(coldr *ColdSetReader, checkpoint *Checkpoint, start cid.Cid, markSet MarkSet) error {
+	if !start.Defined() {
+		return s.purge(coldr, checkpoint, markSet)
+	}
+
+	seeking := true
+	batch := make([]cid.Cid, 0, batchSize)
+	deadCids := make([]cid.Cid, 0, batchSize)
+
+	var purgeCnt, liveCnt int
+	defer func() {
+		log.Infow("purged cold objects", "purged", purgeCnt, "live", liveCnt)
+	}()
+
+	deleteBatch := func() error {
+		pc, lc, err := s.purgeBatch(batch, deadCids, checkpoint, markSet)
+
+		purgeCnt += pc
+		liveCnt += lc
+		batch = batch[:0]
+
+		return err
+	}
+
+	err := coldr.ForEach(func(c cid.Cid) error {
+		if seeking {
+			if start.Equals(c) {
+				seeking = false
 			}

-			defer s.txnLk.Unlock()
-
-			for _, c := range cids {
-				live, err := markSet.Has(c)
-				if err != nil {
-					return xerrors.Errorf("error checking for liveness: %w", err)
-				}
-
-				if live {
-					liveCnt++
-					continue
-				}
-
-				deadCids = append(deadCids, c)
-			}
-
-			err := s.hot.DeleteMany(s.ctx, deadCids)
-			if err != nil {
-				return xerrors.Errorf("error purging cold objects: %w", err)
-			}
-
-			s.debug.LogDelete(deadCids)
-
-			purgeCnt += len(deadCids)
 			return nil
-		})
+		}
+
+		batch = append(batch, c)
+		if len(batch) == batchSize {
+			return deleteBatch()
+		}
+
+		return nil
+	})
+
+	if err != nil {
+		return err
+	}
+
+	if len(batch) > 0 {
+		return deleteBatch()
+	}
+
+	return nil
 }

 // I really don't like having this code, but we seem to have some occasional DAG references with
@@ -0,0 +1,214 @@
+package splitstore
+
+import (
+	"errors"
+	"runtime"
+	"sync/atomic"
+
+	"golang.org/x/xerrors"
+
+	blocks "github.com/ipfs/go-block-format"
+	cid "github.com/ipfs/go-cid"
+)
+
+var (
+	errReifyLimit = errors.New("reification limit reached")
+	ReifyLimit    = 16384
+)
+
+func (s *SplitStore) reifyColdObject(c cid.Cid) {
+	if !s.isWarm() {
+		return
+	}
+
+	if isUnitaryObject(c) {
+		return
+	}
+
+	s.reifyMx.Lock()
+	defer s.reifyMx.Unlock()
+
+	_, ok := s.reifyInProgress[c]
+	if ok {
+		return
+	}
+
+	s.reifyPend[c] = struct{}{}
+	s.reifyCond.Broadcast()
+}
+
+func (s *SplitStore) reifyOrchestrator() {
+	workers := runtime.NumCPU() / 4
+	if workers < 2 {
+		workers = 2
+	}
+
+	workch := make(chan cid.Cid, workers)
+	defer close(workch)
+
+	for i := 0; i < workers; i++ {
+		s.reifyWorkers.Add(1)
+		go s.reifyWorker(workch)
+	}
+
+	for {
+		s.reifyMx.Lock()
+		for len(s.reifyPend) == 0 && atomic.LoadInt32(&s.closing) == 0 {
+			s.reifyCond.Wait()
+		}
+
+		if atomic.LoadInt32(&s.closing) != 0 {
+			s.reifyMx.Unlock()
+			return
+		}
+
+		reifyPend := s.reifyPend
+		s.reifyPend = make(map[cid.Cid]struct{})
+		s.reifyMx.Unlock()
+
+		for c := range reifyPend {
+			select {
+			case workch <- c:
+			case <-s.ctx.Done():
+				return
+			}
+		}
+	}
+}
+
+func (s *SplitStore) reifyWorker(workch chan cid.Cid) {
+	defer s.reifyWorkers.Done()
+	for c := range workch {
+		s.doReify(c)
+	}
+}
+
+func (s *SplitStore) doReify(c cid.Cid) {
+	var toreify, totrack, toforget []cid.Cid
+
+	defer func() {
+		s.reifyMx.Lock()
+		defer s.reifyMx.Unlock()
+
+		for _, c := range toreify {
+			delete(s.reifyInProgress, c)
+		}
+		for _, c := range totrack {
+			delete(s.reifyInProgress, c)
+		}
+		for _, c := range toforget {
+			delete(s.reifyInProgress, c)
+		}
+	}()
+
+	s.txnLk.RLock()
+	defer s.txnLk.RUnlock()
+
+	count := 0
+	err := s.walkObjectIncomplete(c, newTmpVisitor(),
+		func(c cid.Cid) error {
+			if isUnitaryObject(c) {
+				return errStopWalk
+			}
+
+			count++
+			if count > ReifyLimit {
+				return errReifyLimit
+			}
+
+			s.reifyMx.Lock()
+			_, inProgress := s.reifyInProgress[c]
+			if !inProgress {
+				s.reifyInProgress[c] = struct{}{}
+			}
+			s.reifyMx.Unlock()
+
+			if inProgress {
+				return errStopWalk
+			}
+
+			has, err := s.hot.Has(s.ctx, c)
+			if err != nil {
+				return xerrors.Errorf("error checking hotstore: %w", err)
+			}
+
+			if has {
+				if s.txnMarkSet != nil {
+					hasMark, err := s.txnMarkSet.Has(c)
+					if err != nil {
+						log.Warnf("error checking markset: %s", err)
+					} else if hasMark {
+						toforget = append(toforget, c)
+						return errStopWalk
+					}
+				} else {
+					totrack = append(totrack, c)
+					return errStopWalk
+				}
+			}
+
+			toreify = append(toreify, c)
+			return nil
+		},
+		func(missing cid.Cid) error {
+			log.Warnf("missing reference while reifying %s: %s", c, missing)
+			return errStopWalk
+		})
+
+	if err != nil {
+		if xerrors.Is(err, errReifyLimit) {
+			log.Debug("reification aborted; reify limit reached")
+			return
+		}
+
+		log.Warnf("error walking cold object for reification (cid: %s): %s", c, err)
+		return
+	}
+
+	log.Debugf("reifying %d objects rooted at %s", len(toreify), c)
+
+	// this should not get too big, maybe some 100s of objects.
+	batch := make([]blocks.Block, 0, len(toreify))
+	for _, c := range toreify {
+		blk, err := s.cold.Get(s.ctx, c)
+		if err != nil {
+			log.Warnf("error retrieving cold object for reification (cid: %s): %s", c, err)
+			continue
+		}
+
+		if err := s.checkClosing(); err != nil {
+			return
+		}
+
+		batch = append(batch, blk)
+	}
+
+	if len(batch) > 0 {
+		err = s.hot.PutMany(s.ctx, batch)
+		if err != nil {
+			log.Warnf("error reifying cold object (cid: %s): %s", c, err)
+			return
+		}
+	}
+
+	if s.txnMarkSet != nil {
+		if len(toreify) > 0 {
+			if err := s.txnMarkSet.MarkMany(toreify); err != nil {
+				log.Warnf("error marking reified objects: %s", err)
+			}
+		}
+		if len(totrack) > 0 {
+			if err := s.txnMarkSet.MarkMany(totrack); err != nil {
+				log.Warnf("error marking tracked objects: %s", err)
+			}
+		}
+	} else {
+		// if txnActive is false these are noops
+		if len(toreify) > 0 {
+			s.trackTxnRefMany(toreify)
+		}
+		if len(totrack) > 0 {
+			s.trackTxnRefMany(totrack)
+		}
+	}
+}
@@ -1,9 +1,11 @@
+//stm: #unit
 package splitstore

 import (
 	"context"
 	"errors"
 	"fmt"
+	"math/rand"
 	"sync"
 	"sync/atomic"
 	"testing"
@@ -20,12 +22,14 @@ import (
 	datastore "github.com/ipfs/go-datastore"
 	dssync "github.com/ipfs/go-datastore/sync"
 	logging "github.com/ipfs/go-log/v2"
+	mh "github.com/multiformats/go-multihash"
 )

 func init() {
 	CompactionThreshold = 5
 	CompactionBoundary = 2
 	WarmupBoundary = 0
+	SyncWaitTime = time.Millisecond
 	logging.SetLogLevel("splitstore", "DEBUG")
 }

@@ -80,8 +84,10 @@ func testSplitStore(t *testing.T, cfg *Config) {
 		t.Fatal(err)
 	}

+	path := t.TempDir()
+
 	// open the splitstore
-	ss, err := Open("", ds, hot, cold, cfg)
+	ss, err := Open(path, ds, hot, cold, cfg)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -125,6 +131,10 @@ func testSplitStore(t *testing.T, cfg *Config) {
 	}

 	waitForCompaction := func() {
+		ss.txnSyncMx.Lock()
+		ss.txnSync = true
+		ss.txnSyncCond.Broadcast()
+		ss.txnSyncMx.Unlock()
 		for atomic.LoadInt32(&ss.compacting) == 1 {
 			time.Sleep(100 * time.Millisecond)
 		}
@@ -210,10 +220,16 @@ func testSplitStore(t *testing.T, cfg *Config) {
 }

 func TestSplitStoreCompaction(t *testing.T) {
+	//stm: @SPLITSTORE_SPLITSTORE_OPEN_001, @SPLITSTORE_SPLITSTORE_CLOSE_001
+	//stm: @SPLITSTORE_SPLITSTORE_PUT_001, @SPLITSTORE_SPLITSTORE_ADD_PROTECTOR_001
+	//stm: @SPLITSTORE_SPLITSTORE_CLOSE_001
 	testSplitStore(t, &Config{MarkSetType: "map"})
 }

 func TestSplitStoreCompactionWithBadger(t *testing.T) {
+	//stm: @SPLITSTORE_SPLITSTORE_OPEN_001, @SPLITSTORE_SPLITSTORE_CLOSE_001
+	//stm: @SPLITSTORE_SPLITSTORE_PUT_001, @SPLITSTORE_SPLITSTORE_ADD_PROTECTOR_001
+	//stm: @SPLITSTORE_SPLITSTORE_CLOSE_001
 	bs := badgerMarkSetBatchSize
 	badgerMarkSetBatchSize = 1
 	t.Cleanup(func() {
@@ -223,6 +239,9 @@ func TestSplitStoreCompactionWithBadger(t *testing.T) {
 }

 func TestSplitStoreSuppressCompactionNearUpgrade(t *testing.T) {
+	//stm: @SPLITSTORE_SPLITSTORE_OPEN_001, @SPLITSTORE_SPLITSTORE_CLOSE_001
+	//stm: @SPLITSTORE_SPLITSTORE_PUT_001, @SPLITSTORE_SPLITSTORE_ADD_PROTECTOR_001
+	//stm: @SPLITSTORE_SPLITSTORE_CLOSE_001
 	ctx := context.Background()
 	chain := &mockChain{t: t}

@@ -259,8 +278,10 @@ func TestSplitStoreSuppressCompactionNearUpgrade(t *testing.T) {
 		t.Fatal(err)
 	}

+	path := t.TempDir()
+
 	// open the splitstore
-	ss, err := Open("", ds, hot, cold, &Config{MarkSetType: "map"})
+	ss, err := Open(path, ds, hot, cold, &Config{MarkSetType: "map"})
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -305,6 +326,10 @@ func TestSplitStoreSuppressCompactionNearUpgrade(t *testing.T) {
 	}

 	waitForCompaction := func() {
+		ss.txnSyncMx.Lock()
+		ss.txnSync = true
+		ss.txnSyncCond.Broadcast()
+		ss.txnSyncMx.Unlock()
 		for atomic.LoadInt32(&ss.compacting) == 1 {
 			time.Sleep(100 * time.Millisecond)
 		}
@@ -357,6 +382,221 @@ func TestSplitStoreSuppressCompactionNearUpgrade(t *testing.T) {
 	}
 }

+func testSplitStoreReification(t *testing.T, f func(context.Context, blockstore.Blockstore, cid.Cid) error) {
+	ds := dssync.MutexWrap(datastore.NewMapDatastore())
+	hot := newMockStore()
+	cold := newMockStore()
+
+	mkRandomBlock := func() blocks.Block {
+		data := make([]byte, 128)
+		_, err := rand.Read(data)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return blocks.NewBlock(data)
+	}
+
+	block1 := mkRandomBlock()
+	block2 := mkRandomBlock()
+	block3 := mkRandomBlock()
+
+	hdr := mock.MkBlock(nil, 0, 0)
+	hdr.Messages = block1.Cid()
+	hdr.ParentMessageReceipts = block2.Cid()
+	hdr.ParentStateRoot = block3.Cid()
+	block4, err := hdr.ToStorageBlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	allBlocks := []blocks.Block{block1, block2, block3, block4}
+	for _, blk := range allBlocks {
+		err := cold.Put(context.Background(), blk)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	path := t.TempDir()
+
+	ss, err := Open(path, ds, hot, cold, &Config{MarkSetType: "map"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ss.Close() //nolint
+
+	ss.warmupEpoch = 1
+	go ss.reifyOrchestrator()
+
+	waitForReification := func() {
+		for {
+			ss.reifyMx.Lock()
+			ready := len(ss.reifyPend) == 0 && len(ss.reifyInProgress) == 0
+			ss.reifyMx.Unlock()
+
+			if ready {
+				return
+			}
+
+			time.Sleep(time.Millisecond)
+		}
+	}
+
+	// first access using the standard view
+	err = f(context.Background(), ss, block4.Cid())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// nothing should be reified
+	waitForReification()
+	for _, blk := range allBlocks {
+		has, err := hot.Has(context.Background(), blk.Cid())
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("block unexpectedly reified")
+		}
+	}
+
+	// now make the hot/reifying view and ensure access reifies
+	err = f(blockstore.WithHotView(context.Background()), ss, block4.Cid())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	// everything should be reified
+	waitForReification()
+	for i, blk := range allBlocks {
+		has, err := hot.Has(context.Background(), blk.Cid())
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if !has {
+			t.Fatalf("block%d was not reified", i+1)
+		}
+	}
+}
+
+func testSplitStoreReificationLimit(t *testing.T, f func(context.Context, blockstore.Blockstore, cid.Cid) error) {
+	ds := dssync.MutexWrap(datastore.NewMapDatastore())
+	hot := newMockStore()
+	cold := newMockStore()
+
+	mkRandomBlock := func() blocks.Block {
+		data := make([]byte, 128)
+		_, err := rand.Read(data)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		return blocks.NewBlock(data)
+	}
+
+	block1 := mkRandomBlock()
+	block2 := mkRandomBlock()
+	block3 := mkRandomBlock()
+
+	hdr := mock.MkBlock(nil, 0, 0)
+	hdr.Messages = block1.Cid()
+	hdr.ParentMessageReceipts = block2.Cid()
+	hdr.ParentStateRoot = block3.Cid()
+	block4, err := hdr.ToStorageBlock()
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	allBlocks := []blocks.Block{block1, block2, block3, block4}
+	for _, blk := range allBlocks {
+		err := cold.Put(context.Background(), blk)
+		if err != nil {
+			t.Fatal(err)
+		}
+	}
+
+	path := t.TempDir()
+
+	ss, err := Open(path, ds, hot, cold, &Config{MarkSetType: "map"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer ss.Close() //nolint
+
+	ss.warmupEpoch = 1
+	go ss.reifyOrchestrator()
+
+	waitForReification := func() {
+		for {
+			ss.reifyMx.Lock()
+			ready := len(ss.reifyPend) == 0 && len(ss.reifyInProgress) == 0
+			ss.reifyMx.Unlock()
+
+			if ready {
+				return
+			}
+
+			time.Sleep(time.Millisecond)
+		}
+	}
+
+	// do a hot access -- nothing should be reified as the limit should be exceeded
+	oldReifyLimit := ReifyLimit
+	ReifyLimit = 2
+	t.Cleanup(func() {
+		ReifyLimit = oldReifyLimit
+	})
+
+	err = f(blockstore.WithHotView(context.Background()), ss, block4.Cid())
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	waitForReification()
+
+	for _, blk := range allBlocks {
+		has, err := hot.Has(context.Background(), blk.Cid())
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if has {
+			t.Fatal("block unexpectedly reified")
+		}
+	}
+
+}
+
+func TestSplitStoreReification(t *testing.T) {
+	t.Log("test reification with Has")
+	testSplitStoreReification(t, func(ctx context.Context, s blockstore.Blockstore, c cid.Cid) error {
+		_, err := s.Has(ctx, c)
+		return err
+	})
+	t.Log("test reification with Get")
+	testSplitStoreReification(t, func(ctx context.Context, s blockstore.Blockstore, c cid.Cid) error {
+		_, err := s.Get(ctx, c)
+		return err
+	})
+	t.Log("test reification with GetSize")
+	testSplitStoreReification(t, func(ctx context.Context, s blockstore.Blockstore, c cid.Cid) error {
+		_, err := s.GetSize(ctx, c)
+		return err
+	})
+	t.Log("test reification with View")
+	testSplitStoreReification(t, func(ctx context.Context, s blockstore.Blockstore, c cid.Cid) error {
+		return s.View(ctx, c, func(_ []byte) error { return nil })
+	})
+	t.Log("test reification limit")
+	testSplitStoreReificationLimit(t, func(ctx context.Context, s blockstore.Blockstore, c cid.Cid) error {
+		_, err := s.Has(ctx, c)
+		return err
+	})
+}
+
 type mockChain struct {
 	t testing.TB

@@ -426,17 +666,25 @@ func (c *mockChain) SubscribeHeadChanges(change func(revert []*types.TipSet, app

 type mockStore struct {
 	mx  sync.Mutex
-	set map[cid.Cid]blocks.Block
+	set map[string]blocks.Block
 }

 func newMockStore() *mockStore {
-	return &mockStore{set: make(map[cid.Cid]blocks.Block)}
+	return &mockStore{set: make(map[string]blocks.Block)}
+}
+
+func (b *mockStore) keyOf(c cid.Cid) string {
+	return string(c.Hash())
+}
+
+func (b *mockStore) cidOf(k string) cid.Cid {
+	return cid.NewCidV1(cid.Raw, mh.Multihash([]byte(k)))
 }

 func (b *mockStore) Has(_ context.Context, cid cid.Cid) (bool, error) {
 	b.mx.Lock()
 	defer b.mx.Unlock()
-	_, ok := b.set[cid]
+	_, ok := b.set[b.keyOf(cid)]
 	return ok, nil
 }

@@ -446,7 +694,7 @@ func (b *mockStore) Get(_ context.Context, cid cid.Cid) (blocks.Block, error) {
 	b.mx.Lock()
 	defer b.mx.Unlock()

-	blk, ok := b.set[cid]
+	blk, ok := b.set[b.keyOf(cid)]
 	if !ok {
 		return nil, blockstore.ErrNotFound
 	}
@@ -474,7 +722,7 @@ func (b *mockStore) Put(_ context.Context, blk blocks.Block) error {
 	b.mx.Lock()
 	defer b.mx.Unlock()

-	b.set[blk.Cid()] = blk
+	b.set[b.keyOf(blk.Cid())] = blk
 	return nil
 }

@@ -483,7 +731,7 @@ func (b *mockStore) PutMany(_ context.Context, blks []blocks.Block) error {
 	defer b.mx.Unlock()

 	for _, blk := range blks {
-		b.set[blk.Cid()] = blk
+		b.set[b.keyOf(blk.Cid())] = blk
 	}
 	return nil
 }
@@ -492,7 +740,7 @@ func (b *mockStore) DeleteBlock(_ context.Context, cid cid.Cid) error {
 	b.mx.Lock()
 	defer b.mx.Unlock()

-	delete(b.set, cid)
+	delete(b.set, b.keyOf(cid))
 	return nil
 }

@@ -501,7 +749,7 @@ func (b *mockStore) DeleteMany(_ context.Context, cids []cid.Cid) error {
 	defer b.mx.Unlock()

 	for _, c := range cids {
-		delete(b.set, c)
+		delete(b.set, b.keyOf(c))
 	}
 	return nil
 }
@@ -515,7 +763,7 @@ func (b *mockStore) ForEachKey(f func(cid.Cid) error) error {
 	defer b.mx.Unlock()

 	for c := range b.set {
-		err := f(c)
+		err := f(b.cidOf(c))
 		if err != nil {
 			return err
 		}
@@ -62,7 +62,7 @@ func (s *SplitStore) doWarmup(curTs *types.TipSet) error {
 	xcount := new(int64)
 	missing := new(int64)

-	visitor, err := s.markSetEnv.Create("warmup", 0)
+	visitor, err := s.markSetEnv.New("warmup", 0)
 	if err != nil {
 		return xerrors.Errorf("error creating visitor: %w", err)
 	}
@@ -26,6 +26,10 @@ type tmpVisitor struct {
 var _ ObjectVisitor = (*tmpVisitor)(nil)

 func (v *tmpVisitor) Visit(c cid.Cid) (bool, error) {
+	if isUnitaryObject(c) {
+		return false, nil
+	}
+
 	return v.set.Visit(c), nil
 }

@@ -45,6 +49,10 @@ func newConcurrentVisitor() *concurrentVisitor {
 }

 func (v *concurrentVisitor) Visit(c cid.Cid) (bool, error) {
+	if isUnitaryObject(c) {
+		return false, nil
+	}
+
 	v.mx.Lock()
 	defer v.mx.Unlock()

@@ -1,3 +1,4 @@
+//stm: #unit
 package blockstore

 import (
@@ -13,6 +14,9 @@ import (
 )

 func TestTimedCacheBlockstoreSimple(t *testing.T) {
+	//stm: @SPLITSTORE_TIMED_BLOCKSTORE_START_001
+	//stm: @SPLITSTORE_TIMED_BLOCKSTORE_PUT_001, @SPLITSTORE_TIMED_BLOCKSTORE_HAS_001, @SPLITSTORE_TIMED_BLOCKSTORE_GET_001
+	//stm: @SPLITSTORE_TIMED_BLOCKSTORE_ALL_KEYS_CHAN_001
 	tc := NewTimedCacheBlockstore(10 * time.Millisecond)
 	mClock := clock.NewMock()
 	mClock.Set(time.Now())
@@ -1,3 +1,4 @@
+//stm: #unit
 package blockstore

 import (
@@ -15,6 +16,7 @@ var (
 )

 func TestUnionBlockstore_Get(t *testing.T) {
+	//stm: @SPLITSTORE_UNION_BLOCKSTORE_GET_001
 	ctx := context.Background()
 	m1 := NewMemory()
 	m2 := NewMemory()
@@ -34,6 +36,9 @@ func TestUnionBlockstore_Get(t *testing.T) {
 }

 func TestUnionBlockstore_Put_PutMany_Delete_AllKeysChan(t *testing.T) {
+	//stm: @SPLITSTORE_UNION_BLOCKSTORE_PUT_001, @SPLITSTORE_UNION_BLOCKSTORE_HAS_001
+	//stm: @SPLITSTORE_UNION_BLOCKSTORE_PUT_MANY_001, @SPLITSTORE_UNION_BLOCKSTORE_DELETE_001
+	//stm: @SPLITSTORE_UNION_BLOCKSTORE_ALL_KEYS_CHAN_001
 	ctx := context.Background()
 	m1 := NewMemory()
 	m2 := NewMemory()
@@ -0,0 +1,18 @@
+# Bundles
+
+This directory includes the actors bundles for each release. Each actor bundle is a zstd compressed
+tarfile containing one bundle per network type. These tarfiles are subsequently embedded in the
+lotus binary.
+
+## Updating
+
+To update, run the `./pack.sh` script. For example, the following will pack the [builtin actors release](https://github.com/filecoin-project/builtin-actors/releases) `dev/20220602` into the `v8` tarfile.
+
+```bash
+./pack.sh v8 dev/20220602
+```
+
+This will:
+
+1. Download the actors bundles and pack them into the appropriate tarfile (`$VERSION.tar.zst`).
+2. Run `make bundle-gen` in the top-level directory to regenerate the bundle metadata file for _all_ network versions (all `*.tar.zst` files in this directory).
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e
+
+if [[ $# -ne 2 ]]; then
+    echo "expected two arguments, an actors version (e.g., v8) and an actors release"
+    exit 1
+fi
+
+VERSION="$1" # actors version
+RELEASE="$2" # actors release name
+NETWORKS=(devnet mainnet caterpillarnet butterflynet testing testing-fake-proofs calibrationnet)
+
+echo "Downloading bundles for actors version ${VERSION}, release ${RELEASE}"
+
+TARGET_FILE="$(pwd)/${VERSION}.tar.zst"
+WORKDIR=$(mktemp -d -t "actor-bundles-${VERSION}.XXXXXXXXXX")
+trap 'rm -rf -- "$WORKDIR"' EXIT
+
+pushd "${WORKDIR}"
+encoded_release="$(jq -rn --arg release "$RELEASE" '$release | @uri')"
+for network in "${NETWORKS[@]}"; do
+    wget "https://github.com/filecoin-project/builtin-actors/releases/download/${encoded_release}/builtin-actors-${network}"{.car,.sha256}
+done
+
+echo "Checking the checksums..."
+
+sha256sum -c -- *.sha256
+
+
+echo "Packing..."
+
+rm -f -- "$TARGET_FILE"
+tar -cf "$TARGET_FILE" --use-compress-program "zstd -19" -- *.car
+popd
+
+echo "Generating metadata..."
+
+make -C ../../ bundle-gen
@@ -1,2 +1,2 @@
-/dns4/bootstrap-0.butterfly.fildev.network/tcp/1347/p2p/12D3KooWBdRCBLUeKvoy22u5DcXs61adFn31v8WWCZgmBjDCjbsC
-/dns4/bootstrap-1.butterfly.fildev.network/tcp/1347/p2p/12D3KooWDUQJBA18njjXnG9RtLxoN3muvdU7PEy55QorUEsdAqdy
+/dns4/bootstrap-0.butterfly.fildev.network/tcp/1347/p2p/12D3KooWFHDtFx7CVTy4xoCDutVo1cScvSnQjDeaM8UzwVS1qwkh
+/dns4/bootstrap-1.butterfly.fildev.network/tcp/1347/p2p/12D3KooWKt8cwpkiumkT8x32c3YFxsPRwhV5J8hCYPn9mhUmcAXt
@@ -1,2 +1,2 @@
-/dns4/bootstrap-0.interop.fildev.network/tcp/1347/p2p/12D3KooWLGPq9JL1xwL6gHok7HSNxtK1Q5kyfg4Hk69ifRPghn4i
-/dns4/bootstrap-1.interop.fildev.network/tcp/1347/p2p/12D3KooWFYS1f31zafv8mqqYu8U3hEqYvaZ6avWzYU3BmZdpyH3h
+/dns4/bootstrap-0.interop.fildev.network/tcp/1347/p2p/12D3KooWDY249nj6gxSiBTocNBnkbBBvnfPgkxq5SBUVrccjwRnr
+/dns4/bootstrap-1.interop.fildev.network/tcp/1347/p2p/12D3KooWCwFsKt4NyoJQk7vjiACXL9LznBWANXKjCebKJ7MHh3h4
@@ -13,3 +13,4 @@
 /dns4/node.glif.io/tcp/1235/p2p/12D3KooWBF8cpp65hp2u9LK5mh19x67ftAam84z9LsfaquTDSBpt
 /dns4/bootstrap-0.ipfsmain.cn/tcp/34721/p2p/12D3KooWQnwEGNqcM2nAcPtRR9rAX8Hrg4k9kJLCHoTR5chJfz6d
 /dns4/bootstrap-1.ipfsmain.cn/tcp/34723/p2p/12D3KooWMKxMkD5DMpSWsW7dBddKxKT7L2GgbNuckz9otxvkvByP
+/dns4/bootstarp-0.1475.io/tcp/61256/p2p/12D3KooWQjaNmbz9b1XmheQB3RWsRjKSzuRLfjeiDZHyX7Y5RcBr
@@ -0,0 +1,263 @@
+package build
+
+import (
+	"archive/tar"
+	"context"
+	"embed"
+	"fmt"
+	"io"
+	"os"
+	"path"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/filecoin-project/lotus/blockstore"
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	"github.com/DataDog/zstd"
+	"github.com/ipfs/go-cid"
+	cbor "github.com/ipfs/go-ipld-cbor"
+	"github.com/ipld/go-car"
+	"golang.org/x/xerrors"
+)
+
+//go:embed actors/*.tar.zst
+var embeddedBuiltinActorReleases embed.FS
+
+func init() {
+	if BundleOverrides == nil {
+		BundleOverrides = make(map[actors.Version]string)
+	}
+	for _, av := range actors.Versions {
+		path := os.Getenv(fmt.Sprintf("LOTUS_BUILTIN_ACTORS_V%d_BUNDLE", av))
+		if path == "" {
+			continue
+		}
+		BundleOverrides[actors.Version(av)] = path
+	}
+	if err := loadManifests(NetworkBundle); err != nil {
+		panic(err)
+	}
+}
+
+// UseNetworkBundle switches to a different network bundle, by name.
+func UseNetworkBundle(netw string) error {
+	if NetworkBundle == netw {
+		return nil
+	}
+	if err := loadManifests(netw); err != nil {
+		return err
+	}
+	NetworkBundle = netw
+	return nil
+}
+
+func loadManifests(netw string) error {
+	overridden := make(map[actors.Version]struct{})
+	var newMetadata []*BuiltinActorsMetadata
+	// First, prefer overrides.
+	for av, path := range BundleOverrides {
+		root, actorCids, err := readBundleManifestFromFile(path)
+		if err != nil {
+			return err
+		}
+		newMetadata = append(newMetadata, &BuiltinActorsMetadata{
+			Network:     netw,
+			Version:     av,
+			ManifestCid: root,
+			Actors:      actorCids,
+		})
+		overridden[av] = struct{}{}
+	}
+
+	// Then load embedded bundle metadata.
+	for _, meta := range EmbeddedBuiltinActorsMetadata {
+		if meta.Network != netw {
+			continue
+		}
+		if _, ok := overridden[meta.Version]; ok {
+			continue
+		}
+		newMetadata = append(newMetadata, meta)
+	}
+
+	actors.ClearManifests()
+
+	for _, meta := range newMetadata {
+		actors.RegisterManifest(meta.Version, meta.ManifestCid, meta.Actors)
+	}
+
+	return nil
+}
+
+type BuiltinActorsMetadata struct {
+	Network     string
+	Version     actors.Version
+	ManifestCid cid.Cid
+	Actors      map[string]cid.Cid
+}
+
+// ReadEmbeddedBuiltinActorsMetadata reads the metadata from the embedded built-in actor bundles.
+// There should be no need to call this method as the result is cached in the
+// `EmbeddedBuiltinActorsMetadata` variable on `make gen`.
+func ReadEmbeddedBuiltinActorsMetadata() ([]*BuiltinActorsMetadata, error) {
+	files, err := embeddedBuiltinActorReleases.ReadDir("actors")
+	if err != nil {
+		return nil, xerrors.Errorf("failed to read embedded bundle directory: %s", err)
+	}
+	var bundles []*BuiltinActorsMetadata
+	for _, dirent := range files {
+		name := dirent.Name()
+		b, err := readEmbeddedBuiltinActorsMetadata(name)
+		if err != nil {
+			return nil, err
+		}
+		bundles = append(bundles, b...)
+	}
+	// Sort by network, then by bundle.
+	sort.Slice(bundles, func(i, j int) bool {
+		if bundles[i].Network == bundles[j].Network {
+			return bundles[i].Version < bundles[j].Version
+		}
+		return bundles[i].Network < bundles[j].Network
+	})
+	return bundles, nil
+}
+
+func readEmbeddedBuiltinActorsMetadata(bundle string) ([]*BuiltinActorsMetadata, error) {
+	const (
+		archiveExt   = ".tar.zst"
+		bundleExt    = ".car"
+		bundlePrefix = "builtin-actors-"
+	)
+
+	if !strings.HasPrefix(bundle, "v") {
+		return nil, xerrors.Errorf("bundle bundle '%q' doesn't start with a 'v'", bundle)
+	}
+	if !strings.HasSuffix(bundle, archiveExt) {
+		return nil, xerrors.Errorf("bundle bundle '%q' doesn't end with '%s'", bundle, archiveExt)
+	}
+	version, err := strconv.ParseInt(bundle[1:len(bundle)-len(archiveExt)], 10, 0)
+	if err != nil {
+		return nil, xerrors.Errorf("failed to parse actors version from bundle '%q': %s", bundle, err)
+	}
+	fi, err := embeddedBuiltinActorReleases.Open(fmt.Sprintf("actors/%s", bundle))
+	if err != nil {
+		return nil, err
+	}
+	defer fi.Close() //nolint
+
+	uncompressed := zstd.NewReader(fi)
+	defer uncompressed.Close() //nolint
+
+	var bundles []*BuiltinActorsMetadata
+
+	tarReader := tar.NewReader(uncompressed)
+	for {
+		header, err := tarReader.Next()
+		switch err {
+		case io.EOF:
+			return bundles, nil
+		case nil:
+		default:
+			return nil, err
+		}
+
+		// Read the network name from the bundle name.
+		name := path.Base(header.Name)
+		if !strings.HasSuffix(name, bundleExt) {
+			return nil, xerrors.Errorf("expected bundle to end with .car: %s", name)
+		}
+		if !strings.HasPrefix(name, bundlePrefix) {
+			return nil, xerrors.Errorf("expected bundle to end with .car: %s", name)
+		}
+		name = name[len(bundlePrefix) : len(name)-len(bundleExt)]
+
+		// Load the bundle.
+		root, actorCids, err := readBundleManifest(tarReader)
+		if err != nil {
+			return nil, xerrors.Errorf("error loading builtin actors bundle: %w", err)
+		}
+		bundles = append(bundles, &BuiltinActorsMetadata{
+			Network:     name,
+			Version:     actors.Version(version),
+			ManifestCid: root,
+			Actors:      actorCids,
+		})
+	}
+}
+
+func readBundleManifestFromFile(path string) (cid.Cid, map[string]cid.Cid, error) {
+	fi, err := os.Open(path)
+	if err != nil {
+		return cid.Undef, nil, err
+	}
+	defer fi.Close() //nolint
+
+	return readBundleManifest(fi)
+}
+
+func readBundleManifest(r io.Reader) (cid.Cid, map[string]cid.Cid, error) {
+	// Load the bundle.
+	bs := blockstore.NewMemory()
+	hdr, err := car.LoadCar(context.Background(), bs, r)
+	if err != nil {
+		return cid.Undef, nil, xerrors.Errorf("error loading builtin actors bundle: %w", err)
+	}
+
+	if len(hdr.Roots) != 1 {
+		return cid.Undef, nil, xerrors.Errorf("expected one root when loading actors bundle, got %d", len(hdr.Roots))
+	}
+	root := hdr.Roots[0]
+	actorCids, err := actors.ReadManifest(context.Background(), adt.WrapStore(context.Background(), cbor.NewCborStore(bs)), root)
+	if err != nil {
+		return cid.Undef, nil, err
+	}
+
+	// Make sure we have all the actors.
+	for name, c := range actorCids {
+		if has, err := bs.Has(context.Background(), c); err != nil {
+			return cid.Undef, nil, xerrors.Errorf("got an error when checking that the bundle has the actor %q: %w", name, err)
+		} else if !has {
+			return cid.Undef, nil, xerrors.Errorf("actor %q missing from bundle", name)
+		}
+	}
+
+	return root, actorCids, nil
+}
+
+// GetEmbeddedBuiltinActorsBundle returns the builtin-actors bundle for the given actors version.
+func GetEmbeddedBuiltinActorsBundle(version actors.Version) ([]byte, bool) {
+	fi, err := embeddedBuiltinActorReleases.Open(fmt.Sprintf("actors/v%d.tar.zst", version))
+	if err != nil {
+		return nil, false
+	}
+	defer fi.Close() //nolint
+
+	uncompressed := zstd.NewReader(fi)
+	defer uncompressed.Close() //nolint
+
+	tarReader := tar.NewReader(uncompressed)
+	targetFileName := fmt.Sprintf("builtin-actors-%s.car", NetworkBundle)
+	for {
+		header, err := tarReader.Next()
+		switch err {
+		case io.EOF:
+			return nil, false
+		case nil:
+		default:
+			panic(err)
+		}
+		if header.Name != targetFileName {
+			continue
+		}
+
+		car, err := io.ReadAll(tarReader)
+		if err != nil {
+			panic(err)
+		}
+		return car, true
+	}
+}
@@ -0,0 +1,128 @@
+// WARNING: This file has automatically been generated
+
+package build
+
+import (
+	"github.com/ipfs/go-cid"
+)
+
+var EmbeddedBuiltinActorsMetadata []*BuiltinActorsMetadata = []*BuiltinActorsMetadata{{
+	Network:     "butterflynet",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzaced6uuyvoidi5gmqk6wsx7hlchpjfvzrkqlbnto2p5tvzcnaf6gmey"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzaceckohebftaeh3umtazldwcm2yjfsv74tf7qbxledmhm5uiqoslhgy"),
+		"cron":             MustParseCid("bafk2bzacebjgaky46lkkwh7dk6vxxcoktem3wvd64pamjlmjiuw4dpw6ip4gs"),
+		"init":             MustParseCid("bafk2bzacebjzrzjtrq7fops45chsb5xwr2ljmsbpn6rdhaeofhgazqfnnnvia"),
+		"multisig":         MustParseCid("bafk2bzacecumdo2d2vpmkd66vqdkj32zu6m54ddpaqiqcchybq7fljygips6e"),
+		"paymentchannel":   MustParseCid("bafk2bzacecmsfeq364zbysebk4xkpmtcxe4bv4lrlfdzidqoudnsdihph4d6u"),
+		"reward":           MustParseCid("bafk2bzacecegz7l24oflfaljv2leyt5hm43xtnpiud6onb5cj7rxii64skro4"),
+		"storagemarket":    MustParseCid("bafk2bzacedhbgxtzn7njswwj6nddtwvikiawg6v6nfd5j2m4kzwpmzx3hs6za"),
+		"storageminer":     MustParseCid("bafk2bzacedesl6liweoc2tbd2tu7srt4gl47s4mkpxuutyhsp5xdgfon7dhde"),
+		"storagepower":     MustParseCid("bafk2bzaceaanma6h3fgx6i7z44rq43ztpgsm5p5kv7o67tgx37w2deg22747u"),
+		"system":           MustParseCid("bafk2bzaceb7hdtxcgmjyad73fmwqsitaj45tdnf33w4ppr6yviwrng42vrfqk"),
+		"verifiedregistry": MustParseCid("bafk2bzacebevs25cjj2swznkyyauodmwpvcwkgqldbw2x5sd7dwjg7vvntnzu"),
+	},
+}, {
+	Network:     "calibrationnet",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzacedrdn6z3z7xz7lx4wll3tlgktirhllzqxb766dxpaqp3ukxsjfsba"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzacecruossn66xqbeutqx5r4k2kjzgd43frmwd4qkw6haez44ubvvpxo"),
+		"cron":             MustParseCid("bafk2bzaceaxlezmclw5ugldhhtfgvn7yztux45scqik3ez4yhwiqhg5ssib44"),
+		"init":             MustParseCid("bafk2bzaceadyfilb22bcvzvnpzbg2lyg6npmperyq6es2brvzjdh5rmywc4ry"),
+		"multisig":         MustParseCid("bafk2bzacec66wmb4kohuzvuxsulhcgiwju7sqkldwfpmmgw7dbbwgm5l2574q"),
+		"paymentchannel":   MustParseCid("bafk2bzaceblot4pemhfgwb3lceellwrpgxaqkpselzbpqu32maffpopdunlha"),
+		"reward":           MustParseCid("bafk2bzaceayah37uvj7brl5no4gmvmqbmtndh5raywuts7h6tqbgbq2ge7dhu"),
+		"storagemarket":    MustParseCid("bafk2bzacebotg5coqnglzsdrqxtkqk2eq4krxt6zvds3i3vb2yejgxhexl2n6"),
+		"storageminer":     MustParseCid("bafk2bzacea6rabflc7kpwr6y4lzcqsnuahr4zblyq3rhzrrsfceeiw2lufrb4"),
+		"storagepower":     MustParseCid("bafk2bzacecpwr4mynn55bg5hrlns3osvg7sty3rca6zlai3vl52vbbjk7ulfa"),
+		"system":           MustParseCid("bafk2bzaceaqrkllksxv2jsfgjvmuewx5vbzrammw5mdscod6gkdr3ijih2q64"),
+		"verifiedregistry": MustParseCid("bafk2bzaceaihibfu625lbtzdp3tcftscshrmbgghgrc7kzqhxn4455pycpdkm"),
+	},
+}, {
+	Network:     "caterpillarnet",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzacebitcr6geekzzkiggl35gi7f32zph46ufgz5lxkd7pqccqgzvpqyc"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzaceaqeughlonz5okhkep3busavpt6qlaxy3x4lx2go3wsf4oval42go"),
+		"cron":             MustParseCid("bafk2bzacedixwc4mo3k2akjstogi3hsu6yzibe6uzs3hke2m74j7umpe7ydwk"),
+		"init":             MustParseCid("bafk2bzacedrygc7pawj6rgfy5uawgfkykias2phw7lgjfj7yyxtfpk3wsyj7c"),
+		"multisig":         MustParseCid("bafk2bzacececbmijm2t4uemwgrspnnslpgnksozvshrwgf3ozh6zncz7aqr4c"),
+		"paymentchannel":   MustParseCid("bafk2bzacedv3lmu3ut7nrl5zpxl22je2qiognakt3m4eibux4x74nwibdegeu"),
+		"reward":           MustParseCid("bafk2bzacebaxil4vhggtxaz57s4rdxsmjgiegexoyyol77gdtkaxmzuuk2fts"),
+		"storagemarket":    MustParseCid("bafk2bzacecsr53mwcmsdqvg6o45j6skvs56rszpk6qitgctebqmjhntatkhie"),
+		"storageminer":     MustParseCid("bafk2bzacecamuvyexrh27koduxutjtmiats7knwgduujhpx2ppbcidnyrsj22"),
+		"storagepower":     MustParseCid("bafk2bzaceadhmwub5wksxgcakprhahrnm6rhmcle2unlc5lqcnnkplxcy3tby"),
+		"system":           MustParseCid("bafk2bzacebnierpf3g52brlzcs3of4stltmrfw3nhgy3y67e2lndohpuckv72"),
+		"verifiedregistry": MustParseCid("bafk2bzaceckqvl6647so55jgmnoa7jchs3ifbgncdb3qx6e33l2smcnthrkgi"),
+	},
+}, {
+	Network:     "devnet",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzaceajvuce5g5f3lxosfupsizwtlppix6xcwrjphv5rto3rf63j5cdfy"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzacedt3rrna27knzqv45rntnzblcpbdyb7abwprqqc3m3sclhhs5rcbm"),
+		"cron":             MustParseCid("bafk2bzaceacwupgz6ywehqvepuyo5zmmk5zckeep2unnrh2v4m55zzfmuybnm"),
+		"init":             MustParseCid("bafk2bzacedetk52vj6vfpqw3wfd5shnkfigokmyhrfojhtvz43336m43thham"),
+		"multisig":         MustParseCid("bafk2bzacebtypmb6dqnhowzttf643kbgtdhf6iclasc4ffxkkq5atriqc42g6"),
+		"paymentchannel":   MustParseCid("bafk2bzacedvd4cfhfz7duxkudnu2cxbqkmanodgvpf623jmtz75njif5d5d3a"),
+		"reward":           MustParseCid("bafk2bzaceaegqj6sg3dkfb6pcduktclnaqg7lwxfvbmnb75dbwdft7p7ovwh4"),
+		"storagemarket":    MustParseCid("bafk2bzacecfzobcdmc3hxivo7e4w66xlvz2ekbx2g24yzom5b2wxfmt775nus"),
+		"storageminer":     MustParseCid("bafk2bzacebjmefvh4a3qee4e5pnjdhtpwz3hcvysofuclfxl4v7r3wmjggoja"),
+		"storagepower":     MustParseCid("bafk2bzacebxp6iwxv4ofpij2yf4etg42w6spbwt44f7cioyvo6u6rt76mkrvi"),
+		"system":           MustParseCid("bafk2bzacec3t66vrvb6ltgjvtga7xmtvy4x2xvfgq262v44gs7nsalbklamzc"),
+		"verifiedregistry": MustParseCid("bafk2bzaceantjiul66lkpcq6jpujmo3gy2nft44w2tud44wzznrodqm5imegk"),
+	},
+}, {
+	Network:     "mainnet",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzaceclwsaafb4h7nofp64v7ctxq5cs75545mylvw3hwaxdign6xk5kka"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzaceb2bkfdnv2ohescckcywwtrmhtbn53aenbo2x5ybrvtnjfspkud4g"),
+		"cron":             MustParseCid("bafk2bzaceaxoogtk2e4onrx32eykhqy43l3hzcrkz6okhdujjohrfuy6z4ygk"),
+		"init":             MustParseCid("bafk2bzacecxkeddlvo5azclqbasrlymu3a2k3y6jsbaeov4lix5pwzdra5bek"),
+		"multisig":         MustParseCid("bafk2bzacebqhfu4doyffwknjsw7vjldpkccf253i6sncx6ty7ofm2q3d2ttys"),
+		"paymentchannel":   MustParseCid("bafk2bzacebk5kb6ofhksspgv3wp6uwbcrn7x37ego54bgakywseg7bgw4ffdq"),
+		"reward":           MustParseCid("bafk2bzaced2lusdnjdfn7o6fb5cqzdccllqgb5i6ofqlfdknvpuaz7wkkq324"),
+		"storagemarket":    MustParseCid("bafk2bzacedcpb2vsb6xzz32jzgxc5hh4bmhjggjjitizusr5eucfrziizt7tk"),
+		"storageminer":     MustParseCid("bafk2bzacecbnz4cxd3j46taxsfzq3jkzai5sef3zwnxzft77unterfkcukk6w"),
+		"storagepower":     MustParseCid("bafk2bzaceaz7dharmmwjghgobsnefiyciz6ogj6uzdoomlyid6h3ye4nzpurs"),
+		"system":           MustParseCid("bafk2bzaceckspyzcsqyrigwziyubzj7nv3bfiu2p7mwfltyhmzxg34lwj4dfm"),
+		"verifiedregistry": MustParseCid("bafk2bzacecztqq7o5po5hbbtgi3uc7znxkmjl4qqeyhuy42svo3p3zc6cev2c"),
+	},
+}, {
+	Network:     "testing",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzacea33t2faxpcqd47layvl7j6e2rzctc4of4m7nwx5wjagvulwasjzs"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzacearozlorchwfq4gkgkdtmvd43lcjblnge6j3putfetavneycdum4i"),
+		"cron":             MustParseCid("bafk2bzacean2fewjae57hwyomnf7ktyiahuenyxhzrpkhsrlwsecyv2lk2hto"),
+		"init":             MustParseCid("bafk2bzacecioxkb2gqaze7lnaq7xj2aibiqgapl4jq2qyccjbvuzanzzkwqnc"),
+		"multisig":         MustParseCid("bafk2bzacecyeqb2ilsuoxfphqpfxrtwaz7vfbrq3kq67j5uof6sbrw675zbry"),
+		"paymentchannel":   MustParseCid("bafk2bzacedsi4nwln57uqf2vhjma3qfsmavjhyjwk6bch2nl3zbwmwln3cgk6"),
+		"reward":           MustParseCid("bafk2bzacec3no7avpydxxkqzc7druqiljmfs6antcmdbhjtyytlzfrj3nemlm"),
+		"storagemarket":    MustParseCid("bafk2bzacedqlm6c4yhtcw3f3fkhx4bc3cfckyvkk6tfsdnzita47poq4jfv5i"),
+		"storageminer":     MustParseCid("bafk2bzacedcxbj6ntcnmupkmxwr42pvfrurqjykbs4mzndmvjgjg63ka2wupo"),
+		"storagepower":     MustParseCid("bafk2bzacebg663joio3mq5utzm2k3je6piwmqlyindcklbhnsukku6u26mrus"),
+		"system":           MustParseCid("bafk2bzaceaxy3h63qnazdiny57sh2yaq3c3azyt6zgpefpom3hs2lyfsmw3ui"),
+		"verifiedregistry": MustParseCid("bafk2bzacebeauqrzfv4cr644udm2fnltuz6cddoyzo2n7cvpa6l3ktnofu7w2"),
+	},
+}, {
+	Network:     "testing-fake-proofs",
+	Version:     8,
+	ManifestCid: MustParseCid("bafy2bzacedsjtsrqey2n54hm7eblf25ygmvv6e73uvqsdiklavtmqmxilcdjc"),
+	Actors: map[string]cid.Cid{
+		"account":          MustParseCid("bafk2bzacearozlorchwfq4gkgkdtmvd43lcjblnge6j3putfetavneycdum4i"),
+		"cron":             MustParseCid("bafk2bzacean2fewjae57hwyomnf7ktyiahuenyxhzrpkhsrlwsecyv2lk2hto"),
+		"init":             MustParseCid("bafk2bzacebwfsgvfuuogwodiq53m23ggae5saavabeqouttmo6s52pdmzmg36"),
+		"multisig":         MustParseCid("bafk2bzacecyeqb2ilsuoxfphqpfxrtwaz7vfbrq3kq67j5uof6sbrw675zbry"),
+		"paymentchannel":   MustParseCid("bafk2bzacedsi4nwln57uqf2vhjma3qfsmavjhyjwk6bch2nl3zbwmwln3cgk6"),
+		"reward":           MustParseCid("bafk2bzacec3no7avpydxxkqzc7druqiljmfs6antcmdbhjtyytlzfrj3nemlm"),
+		"storagemarket":    MustParseCid("bafk2bzaceckvmh2knnsuzx2jqcmjnmckccoffznr3uah25p7ndphva6qwhfuc"),
+		"storageminer":     MustParseCid("bafk2bzacedngg6mggpxoeyineuiwp26doj7h46yxp6fk6rftfo6suwsd23fku"),
+		"storagepower":     MustParseCid("bafk2bzacectbtyzafwpjtsfbsi75wky6i6ufoggrch6nc66bxcskmxie4ho34"),
+		"system":           MustParseCid("bafk2bzaceaxy3h63qnazdiny57sh2yaq3c3azyt6zgpefpom3hs2lyfsmw3ui"),
+		"verifiedregistry": MustParseCid("bafk2bzacebeauqrzfv4cr644udm2fnltuz6cddoyzo2n7cvpa6l3ktnofu7w2"),
+	},
+}}
@@ -0,0 +1,33 @@
+package build_test
+
+import (
+	"testing"
+
+	"github.com/filecoin-project/lotus/build"
+	"github.com/filecoin-project/lotus/chain/actors"
+	"github.com/stretchr/testify/require"
+)
+
+// Test that the embedded metadata is correct.
+func TestEmbeddedMetadata(t *testing.T) {
+	metadata, err := build.ReadEmbeddedBuiltinActorsMetadata()
+	require.NoError(t, err)
+
+	require.Equal(t, metadata, build.EmbeddedBuiltinActorsMetadata)
+}
+
+// Test that we're registering the manifest correctly.
+func TestRegistration(t *testing.T) {
+	manifestCid, found := actors.GetManifest(actors.Version8)
+	require.True(t, found)
+	require.True(t, manifestCid.Defined())
+
+	for _, key := range actors.GetBuiltinActorsKeys() {
+		actorCid, found := actors.GetActorCodeID(actors.Version8, key)
+		require.True(t, found)
+		name, version, found := actors.GetActorMetaByCode(actorCid)
+		require.True(t, found)
+		require.Equal(t, actors.Version8, version)
+		require.Equal(t, key, name)
+	}
+}
@@ -1,3 +1,4 @@
+//stm: #unit
 package build

 import (
@@ -7,6 +8,7 @@ import (
 )

 func TestOpenRPCDiscoverJSON_Version(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_OPENRPC_VERSION_001
 	// openRPCDocVersion is the current OpenRPC version of the API docs.
 	openRPCDocVersion := "1.2.6"

@@ -11,13 +11,18 @@ import (

 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
+
+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 )

 const BootstrappersFile = ""
 const GenesisFile = ""

-const GenesisNetworkVersion = network.Version15
+var NetworkBundle = "devnet"
+var BundleOverrides map[actors.Version]string
+
+const GenesisNetworkVersion = network.Version16

 var UpgradeBreezeHeight = abi.ChainEpoch(-1)

@@ -48,16 +53,25 @@ var UpgradeHyperdriveHeight = abi.ChainEpoch(-16)
 var UpgradeChocolateHeight = abi.ChainEpoch(-17)

 var UpgradeOhSnapHeight = abi.ChainEpoch(-18)
+var UpgradeSkyrHeight = abi.ChainEpoch(-19)

 var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,
 }

+var SupportedProofTypes = []abi.RegisteredSealProof{
+	abi.RegisteredSealProof_StackedDrg2KiBV1,
+	abi.RegisteredSealProof_StackedDrg8MiBV1,
+}
+var ConsensusMinerMinPower = abi.NewStoragePower(2048)
+var MinVerifiedDealSize = abi.NewStoragePower(256)
+var PreCommitChallengeDelay = abi.ChainEpoch(10)
+
 func init() {
-	policy.SetSupportedProofTypes(abi.RegisteredSealProof_StackedDrg2KiBV1, abi.RegisteredSealProof_StackedDrg8MiBV1)
-	policy.SetConsensusMinerMinPower(abi.NewStoragePower(2048))
-	policy.SetMinVerifiedDealSize(abi.NewStoragePower(256))
-	policy.SetPreCommitChallengeDelay(abi.ChainEpoch(10))
+	policy.SetSupportedProofTypes(SupportedProofTypes...)
+	policy.SetConsensusMinerMinPower(ConsensusMinerMinPower)
+	policy.SetMinVerifiedDealSize(MinVerifiedDealSize)
+	policy.SetPreCommitChallengeDelay(PreCommitChallengeDelay)

 	getUpgradeHeight := func(ev string, def abi.ChainEpoch) abi.ChainEpoch {
 		hs, found := os.LookupEnv(ev)
@@ -91,6 +105,7 @@ func init() {
 	UpgradeHyperdriveHeight = getUpgradeHeight("LOTUS_HYPERDRIVE_HEIGHT", UpgradeHyperdriveHeight)
 	UpgradeChocolateHeight = getUpgradeHeight("LOTUS_CHOCOLATE_HEIGHT", UpgradeChocolateHeight)
 	UpgradeOhSnapHeight = getUpgradeHeight("LOTUS_OHSNAP_HEIGHT", UpgradeOhSnapHeight)
+	UpgradeSkyrHeight = getUpgradeHeight("LOTUS_SKYR_HEIGHT", UpgradeSkyrHeight)

 	BuildType |= Build2k

@@ -7,6 +7,7 @@ import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
 	"github.com/ipfs/go-cid"
@@ -16,7 +17,10 @@ var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,
 }

-const GenesisNetworkVersion = network.Version14
+const GenesisNetworkVersion = network.Version15
+
+var NetworkBundle = "butterflynet"
+var BundleOverrides map[actors.Version]string

 const BootstrappersFile = "butterflynet.pi"
 const GenesisFile = "butterflynet.car"
@@ -42,16 +46,24 @@ const UpgradeTurboHeight = -15
 const UpgradeHyperdriveHeight = -16
 const UpgradeChocolateHeight = -17

-// 2022-01-17T19:00:00Z
-const UpgradeOhSnapHeight = 30262
+const UpgradeOhSnapHeight = -18
+
+const UpgradeSkyrHeight = abi.ChainEpoch(50)
+
+var SupportedProofTypes = []abi.RegisteredSealProof{
+	abi.RegisteredSealProof_StackedDrg512MiBV1,
+	abi.RegisteredSealProof_StackedDrg32GiBV1,
+	abi.RegisteredSealProof_StackedDrg64GiBV1,
+}
+var ConsensusMinerMinPower = abi.NewStoragePower(2 << 30)
+var MinVerifiedDealSize = abi.NewStoragePower(1 << 20)
+var PreCommitChallengeDelay = abi.ChainEpoch(150)

 func init() {
-	policy.SetConsensusMinerMinPower(abi.NewStoragePower(2 << 30))
-	policy.SetSupportedProofTypes(
-		abi.RegisteredSealProof_StackedDrg512MiBV1,
-		abi.RegisteredSealProof_StackedDrg32GiBV1,
-		abi.RegisteredSealProof_StackedDrg64GiBV1,
-	)
+	policy.SetSupportedProofTypes(SupportedProofTypes...)
+	policy.SetConsensusMinerMinPower(ConsensusMinerMinPower)
+	policy.SetMinVerifiedDealSize(MinVerifiedDealSize)
+	policy.SetPreCommitChallengeDelay(PreCommitChallengeDelay)

 	SetAddressNetwork(address.Testnet)

@@ -7,6 +7,7 @@ import (
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
 	"github.com/ipfs/go-cid"
@@ -18,6 +19,9 @@ var DrandSchedule = map[abi.ChainEpoch]DrandEnum{

 const GenesisNetworkVersion = network.Version0

+var NetworkBundle = "calibrationnet"
+var BundleOverrides map[actors.Version]string
+
 const BootstrappersFile = "calibnet.pi"
 const GenesisFile = "calibnet.car"

@@ -54,14 +58,25 @@ const UpgradeHyperdriveHeight = 420

 const UpgradeChocolateHeight = 312746

-const UpgradeOhSnapHeight = 99999999
+// 2022-02-10T19:23:00Z
+const UpgradeOhSnapHeight = 682006
+
+// 2022-06-16T17:30:00Z
+const UpgradeSkyrHeight = 1044660
+
+var SupportedProofTypes = []abi.RegisteredSealProof{
+	abi.RegisteredSealProof_StackedDrg32GiBV1,
+	abi.RegisteredSealProof_StackedDrg64GiBV1,
+}
+var ConsensusMinerMinPower = abi.NewStoragePower(32 << 30)
+var MinVerifiedDealSize = abi.NewStoragePower(1 << 20)
+var PreCommitChallengeDelay = abi.ChainEpoch(150)

 func init() {
-	policy.SetConsensusMinerMinPower(abi.NewStoragePower(32 << 30))
-	policy.SetSupportedProofTypes(
-		abi.RegisteredSealProof_StackedDrg32GiBV1,
-		abi.RegisteredSealProof_StackedDrg64GiBV1,
-	)
+	policy.SetSupportedProofTypes(SupportedProofTypes...)
+	policy.SetConsensusMinerMinPower(ConsensusMinerMinPower)
+	policy.SetMinVerifiedDealSize(MinVerifiedDealSize)
+	policy.SetPreCommitChallengeDelay(PreCommitChallengeDelay)

 	SetAddressNetwork(address.Testnet)

@@ -7,19 +7,22 @@ import (
 	"os"
 	"strconv"

-	"github.com/ipfs/go-cid"
-
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
+	"github.com/ipfs/go-cid"
 )

+var NetworkBundle = "caterpillarnet"
+var BundleOverrides map[actors.Version]string
+
 const BootstrappersFile = "interopnet.pi"
 const GenesisFile = "interopnet.car"

-const GenesisNetworkVersion = network.Version13
+const GenesisNetworkVersion = network.Version15

 var UpgradeBreezeHeight = abi.ChainEpoch(-1)

@@ -48,20 +51,26 @@ var UpgradeTurboHeight = abi.ChainEpoch(-15)
 var UpgradeHyperdriveHeight = abi.ChainEpoch(-16)
 var UpgradeChocolateHeight = abi.ChainEpoch(-17)
 var UpgradeOhSnapHeight = abi.ChainEpoch(-18)
+var UpgradeSkyrHeight = abi.ChainEpoch(100)

 var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	0: DrandMainnet,
 }

+var SupportedProofTypes = []abi.RegisteredSealProof{
+	abi.RegisteredSealProof_StackedDrg2KiBV1,
+	abi.RegisteredSealProof_StackedDrg8MiBV1,
+	abi.RegisteredSealProof_StackedDrg512MiBV1,
+}
+var ConsensusMinerMinPower = abi.NewStoragePower(2048)
+var MinVerifiedDealSize = abi.NewStoragePower(256)
+var PreCommitChallengeDelay = abi.ChainEpoch(10)
+
 func init() {
-	policy.SetSupportedProofTypes(
-		abi.RegisteredSealProof_StackedDrg2KiBV1,
-		abi.RegisteredSealProof_StackedDrg8MiBV1,
-		abi.RegisteredSealProof_StackedDrg512MiBV1,
-	)
-	policy.SetConsensusMinerMinPower(abi.NewStoragePower(2048))
-	policy.SetMinVerifiedDealSize(abi.NewStoragePower(256))
-	policy.SetPreCommitChallengeDelay(abi.ChainEpoch(10))
+	policy.SetSupportedProofTypes(SupportedProofTypes...)
+	policy.SetConsensusMinerMinPower(ConsensusMinerMinPower)
+	policy.SetMinVerifiedDealSize(MinVerifiedDealSize)
+	policy.SetPreCommitChallengeDelay(PreCommitChallengeDelay)

 	getUpgradeHeight := func(ev string, def abi.ChainEpoch) abi.ChainEpoch {
 		hs, found := os.LookupEnv(ev)
@@ -93,6 +102,9 @@ func init() {
 	UpgradeNorwegianHeight = getUpgradeHeight("LOTUS_NORWEGIAN_HEIGHT", UpgradeNorwegianHeight)
 	UpgradeTurboHeight = getUpgradeHeight("LOTUS_ACTORSV4_HEIGHT", UpgradeTurboHeight)
 	UpgradeHyperdriveHeight = getUpgradeHeight("LOTUS_HYPERDRIVE_HEIGHT", UpgradeHyperdriveHeight)
+	UpgradeChocolateHeight = getUpgradeHeight("LOTUS_CHOCOLATE_HEIGHT", UpgradeChocolateHeight)
+	UpgradeOhSnapHeight = getUpgradeHeight("LOTUS_OHSNAP_HEIGHT", UpgradeOhSnapHeight)
+	UpgradeSkyrHeight = getUpgradeHeight("LOTUS_SKYR_HEIGHT", UpgradeSkyrHeight)

 	BuildType |= BuildInteropnet
 	SetAddressNetwork(address.Testnet)
@@ -1,5 +1,5 @@
-//go:build !debug && !2k && !testground && !calibnet && !nerpanet && !butterflynet && !interopnet
-// +build !debug,!2k,!testground,!calibnet,!nerpanet,!butterflynet,!interopnet
+//go:build !debug && !2k && !testground && !calibnet && !butterflynet && !interopnet
+// +build !debug,!2k,!testground,!calibnet,!butterflynet,!interopnet

 package build

@@ -8,6 +8,7 @@ import (
 	"os"

 	"github.com/filecoin-project/go-state-types/network"
+	"github.com/filecoin-project/lotus/chain/actors"

 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/abi"
@@ -19,6 +20,11 @@ var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 	UpgradeSmokeHeight: DrandMainnet,
 }

+var NetworkBundle = "mainnet"
+
+// NOTE: DO NOT change this unless you REALLY know what you're doing. This is consensus critical.
+var BundleOverrides map[actors.Version]string
+
 const GenesisNetworkVersion = network.Version0

 const BootstrappersFile = "mainnet.pi"
@@ -67,15 +73,26 @@ const UpgradeHyperdriveHeight = 892800
 // 2021-10-26T13:30:00Z
 const UpgradeChocolateHeight = 1231620

-var UpgradeOhSnapHeight = abi.ChainEpoch(999999999999)
+// 2022-03-01T15:00:00Z
+const UpgradeOhSnapHeight = 1594680
+
+var UpgradeSkyrHeight = abi.ChainEpoch(99999999999999)
+
+var SupportedProofTypes = []abi.RegisteredSealProof{
+	abi.RegisteredSealProof_StackedDrg32GiBV1,
+	abi.RegisteredSealProof_StackedDrg64GiBV1,
+}
+var ConsensusMinerMinPower = abi.NewStoragePower(10 << 40)
+var MinVerifiedDealSize = abi.NewStoragePower(1 << 20)
+var PreCommitChallengeDelay = abi.ChainEpoch(150)

 func init() {
 	if os.Getenv("LOTUS_USE_TEST_ADDRESSES") != "1" {
 		SetAddressNetwork(address.Mainnet)
 	}

-	if os.Getenv("LOTUS_DISABLE_SNAPDEALS") == "1" {
-		UpgradeOhSnapHeight = math.MaxInt64
+	if os.Getenv("LOTUS_DISABLE_SKYR") == "1" {
+		UpgradeSkyrHeight = math.MaxInt64
 	}

 	Devnet = false
@@ -1,87 +0,0 @@
-//go:build nerpanet
-// +build nerpanet
-
-package build
-
-import (
-	"github.com/filecoin-project/go-state-types/abi"
-	"github.com/filecoin-project/go-state-types/network"
-	"github.com/filecoin-project/lotus/chain/actors/policy"
-	"github.com/ipfs/go-cid"
-
-	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
-)
-
-var DrandSchedule = map[abi.ChainEpoch]DrandEnum{
-	0: DrandMainnet,
-}
-
-const GenesisNetworkVersion = network.Version0
-
-const BootstrappersFile = "nerpanet.pi"
-const GenesisFile = "nerpanet.car"
-
-const UpgradeBreezeHeight = -1
-const BreezeGasTampingDuration = 0
-
-const UpgradeSmokeHeight = -1
-
-const UpgradeIgnitionHeight = -2
-const UpgradeRefuelHeight = -3
-
-const UpgradeLiftoffHeight = -5
-
-const UpgradeAssemblyHeight = 30 // critical: the network can bootstrap from v1 only
-const UpgradeTapeHeight = 60
-
-const UpgradeKumquatHeight = 90
-
-const UpgradeCalicoHeight = 100
-const UpgradePersianHeight = UpgradeCalicoHeight + (builtin2.EpochsInHour * 1)
-
-const UpgradeClausHeight = 250
-
-const UpgradeOrangeHeight = 300
-
-const UpgradeTrustHeight = 600
-const UpgradeNorwegianHeight = 201000
-const UpgradeTurboHeight = 203000
-const UpgradeHyperdriveHeight = 379178
-
-const UpgradeChocolateHeight = 999999999
-
-func init() {
-	// Minimum block production power is set to 4 TiB
-	// Rationale is to discourage small-scale miners from trying to take over the network
-	// One needs to invest in ~2.3x the compute to break consensus, making it not worth it
-	//
-	// DOWNSIDE: the fake-seals need to be kept alive/protected, otherwise network will seize
-	//
-	policy.SetConsensusMinerMinPower(abi.NewStoragePower(4 << 40))
-
-	policy.SetSupportedProofTypes(
-		abi.RegisteredSealProof_StackedDrg512MiBV1,
-		abi.RegisteredSealProof_StackedDrg32GiBV1,
-		abi.RegisteredSealProof_StackedDrg64GiBV1,
-	)
-
-	// Lower the most time-consuming parts of PoRep
-	policy.SetPreCommitChallengeDelay(10)
-
-	// TODO - make this a variable
-	//miner.WPoStChallengeLookback = abi.ChainEpoch(2)
-
-	Devnet = false
-
-	BuildType = BuildNerpanet
-
-}
-
-const BlockDelaySecs = uint64(builtin2.EpochDurationSeconds)
-
-const PropagationDelaySecs = uint64(6)
-
-// BootstrapPeerThreshold is the minimum number peers we need to track for a sync worker to start
-const BootstrapPeerThreshold = 4
-
-var WhitelistedBlock = cid.Undef
@@ -34,7 +34,7 @@ const NewestNetworkVersion = network.Version{{.latestNetworkVersion}}

 /* inline-gen start */

-const NewestNetworkVersion = network.Version15
+const NewestNetworkVersion = network.Version16

 /* inline-gen end */

@@ -17,6 +17,7 @@ import (

 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"

+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
 )

@@ -33,6 +34,12 @@ var (
 	MinimumBaseFee        = int64(100)
 	BlockDelaySecs        = uint64(builtin2.EpochDurationSeconds)
 	PropagationDelaySecs  = uint64(6)
+	SupportedProofTypes   = []abi.RegisteredSealProof{
+		abi.RegisteredSealProof_StackedDrg32GiBV1,
+		abi.RegisteredSealProof_StackedDrg64GiBV1,
+	}
+	ConsensusMinerMinPower  = abi.NewStoragePower(10 << 40)
+	PreCommitChallengeDelay = abi.ChainEpoch(150)

 	AllowableClockDriftSecs = uint64(1)

@@ -100,12 +107,15 @@ var (
 	UpgradeHyperdriveHeight abi.ChainEpoch = -15
 	UpgradeChocolateHeight  abi.ChainEpoch = -16
 	UpgradeOhSnapHeight     abi.ChainEpoch = -17
+	UpgradeSkyrHeight       abi.ChainEpoch = -18

 	DrandSchedule = map[abi.ChainEpoch]DrandEnum{
 		0: DrandMainnet,
 	}

 	GenesisNetworkVersion = network.Version0
+	NetworkBundle         = "devnet"
+	BundleOverrides       map[actors.Version]string

 	NewestNetworkVersion       = network.Version15
 	ActorUpgradeNetworkVersion = network.Version15
@@ -1,4 +1,54 @@
 {
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-61fa69f38b9cc771ba27b670124714b4ea77fbeae05e377fb859c4a43b73a30c.params": {
+    "cid": "Qma5WL6abSqYg9uUQAZ3EHS286bsNsha7oAGsJBD48Bq2q",
+    "digest": "c3ad7bb549470b82ad52ed070aebb4f4",
+    "sector_size": 536870912
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-61fa69f38b9cc771ba27b670124714b4ea77fbeae05e377fb859c4a43b73a30c.vk": {
+    "cid": "QmUa7f9JtJMsqJJ3s3ZXk6WyF4xJLE8FiqYskZGgk8GCDv",
+    "digest": "994c5b7d450ca9da348c910689f2dc7f",
+    "sector_size": 536870912
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-92180959e1918d26350b8e6cfe217bbdd0a2d8de51ebec269078b364b715ad63.params": {
+    "cid": "QmQiT4qBGodrVNEgVTDXxBNDdPbaD8Ag7Sx3ZTq1zHX79S",
+    "digest": "5aedd2cf3e5c0a15623d56a1b43110ad",
+    "sector_size": 8388608
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-92180959e1918d26350b8e6cfe217bbdd0a2d8de51ebec269078b364b715ad63.vk": {
+    "cid": "QmdcpKUQvHM8RFRVKbk1yHfEqMcBzhtFWKRp9SNEmWq37i",
+    "digest": "abd80269054d391a734febdac0d2e687",
+    "sector_size": 8388608
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-fb9e095bebdd77511c0269b967b4d87ba8b8a525edaa0e165de23ba454510194.params": {
+    "cid": "QmYM6Hg7mjmvA3ZHTsqkss1fkdyDju5dDmLiBZGJ5pz9y9",
+    "digest": "311f92a3e75036ced01b1c0025f1fa0c",
+    "sector_size": 2048
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-0-0-fb9e095bebdd77511c0269b967b4d87ba8b8a525edaa0e165de23ba454510194.vk": {
+    "cid": "QmaQsTLL3nc5dw6wAvaioJSBfd1jhQrA2o6ucFf7XeV74P",
+    "digest": "eadad9784969890d30f2749708c79771",
+    "sector_size": 2048
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-8-0-3b7f44a9362e3985369454947bc94022e118211e49fd672d52bec1cbfd599d18.params": {
+    "cid": "QmNPc75iEfcahCwNKdqnWLtxnjspUGGR4iscjiz3wP3RtS",
+    "digest": "1b3cfd761a961543f9eb273e435a06a2",
+    "sector_size": 34359738368
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-8-0-3b7f44a9362e3985369454947bc94022e118211e49fd672d52bec1cbfd599d18.vk": {
+    "cid": "QmdFFUe1gcz9MMHc6YW8aoV48w4ckvcERjt7PkydQAMfCN",
+    "digest": "3a6941983754737fde880d29c7094905",
+    "sector_size": 34359738368
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-8-2-102e1444a7e9a97ebf1e3d6855dcc77e66c011ea66f936d9b2c508f87f2f83a7.params": {
+    "cid": "QmUB6xTVjzBQGuDNeyJMrrJ1byk58vhPm8eY2Lv9pgwanp",
+    "digest": "1a392e7b759fb18e036c7559b5ece816",
+    "sector_size": 68719476736
+  },
+  "v28-empty-sector-update-merkletree-poseidon_hasher-8-8-2-102e1444a7e9a97ebf1e3d6855dcc77e66c011ea66f936d9b2c508f87f2f83a7.vk": {
+    "cid": "Qmd794Jty7k26XJ8Eg4NDEks65Qk8G4GVfGkwqvymv8HAg",
+    "digest": "80e366df2f1011953c2d01c7b7c9ee8e",
+    "sector_size": 68719476736
+  },
  "v28-proof-of-spacetime-fallback-merkletree-poseidon_hasher-8-0-0-0170db1f394b35d995252228ee359194b13199d259380541dc529fb0099096b0.params": {
    "cid": "QmVxjFRyhmyQaZEtCh7nk2abc7LhFkzhnRX4rcHqCCpikR",
    "digest": "7610b9f82bfc88405b7a832b651ce2f6",
@@ -37,7 +37,7 @@ func BuildTypeString() string {
 }

 // BuildVersion is the local build version
-const BuildVersion = "1.15.0-dev"
+const BuildVersion = "1.16.0-rc1"

 func UserVersion() string {
 	if os.Getenv("LOTUS_VERSION_IGNORE_COMMIT") == "1" {
@@ -1,3 +1,4 @@
+//stm: #unit
 package adt

 import (
@@ -44,6 +45,7 @@ func TestDiffAdtArray(t *testing.T) {

 	changes := new(TestDiffArray)

+	//stm: @CHAIN_ADT_ARRAY_DIFF_001
 	assert.NoError(t, DiffAdtArray(arrA, arrB, changes))
 	assert.NotNil(t, changes)

@@ -98,6 +100,7 @@ func TestDiffAdtMap(t *testing.T) {

 	changes := new(TestDiffMap)

+	//stm: @CHAIN_ADT_MAP_DIFF_001
 	assert.NoError(t, DiffAdtMap(mapA, mapB, changes))
 	assert.NotNil(t, changes)

@@ -1,3 +1,4 @@
+//stm: #unit
 package aerrors_test

 import (
@@ -11,6 +12,7 @@ import (
 )

 func TestFatalError(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_ACTOR_ERRORS_001
 	e1 := xerrors.New("out of disk space")
 	e2 := xerrors.Errorf("could not put node: %w", e1)
 	e3 := xerrors.Errorf("could not save head: %w", e2)
@@ -24,6 +26,7 @@ func TestFatalError(t *testing.T) {
 	assert.True(t, IsFatal(aw4), "should be fatal")
 }
 func TestAbsorbeError(t *testing.T) {
+	//stm: @OTHER_IMPLEMENTATION_ACTOR_ERRORS_001
 	e1 := xerrors.New("EOF")
 	e2 := xerrors.Errorf("could not decode: %w", e1)
 	ae := Absorb(e2, 35, "failed to decode CBOR")
@@ -3,6 +3,7 @@ package main
 import (
 	"bytes"
 	"fmt"
+	"go/format"
 	"io/ioutil"
 	"os"
 	"path/filepath"
@@ -77,7 +78,12 @@ func generateAdapters() error {
 				return err
 			}

-			if err := ioutil.WriteFile(filepath.Join(actDir, fmt.Sprintf("%s.go", act)), b.Bytes(), 0666); err != nil {
+			fmted, err := format.Source(b.Bytes())
+			if err != nil {
+				return err
+			}
+
+			if err := ioutil.WriteFile(filepath.Join(actDir, fmt.Sprintf("%s.go", act)), fmted, 0666); err != nil {
 				return err
 			}
 		}
@@ -6,10 +6,8 @@ import (

 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/cbor"
-	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"

 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
@@ -25,42 +23,26 @@ import (
 	builtin6 "github.com/filecoin-project/specs-actors/v6/actors/builtin"

 	builtin7 "github.com/filecoin-project/specs-actors/v7/actors/builtin"
+
+	builtin8 "github.com/filecoin-project/go-state-types/builtin"
 )

-func init() {
-
-	builtin.RegisterActorState(builtin0.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load0(store, root)
-	})
-
-	builtin.RegisterActorState(builtin2.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load2(store, root)
-	})
-
-	builtin.RegisterActorState(builtin3.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load3(store, root)
-	})
-
-	builtin.RegisterActorState(builtin4.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load4(store, root)
-	})
-
-	builtin.RegisterActorState(builtin5.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load5(store, root)
-	})
-
-	builtin.RegisterActorState(builtin6.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load6(store, root)
-	})
-
-	builtin.RegisterActorState(builtin7.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load7(store, root)
-	})
-}
-
-var Methods = builtin4.MethodsAccount
+var Methods = builtin8.MethodsAccount

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+		if name != actors.AccountKey {
+			return nil, xerrors.Errorf("actor code is not account: %s", name)
+		}
+
+		switch av {
+
+		case actors.Version8:
+			return load8(store, act.Head)
+
+		}
+	}
+
 	switch act.Code {

 	case builtin0.AccountActorCodeID:
@@ -85,6 +67,7 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load7(store, act.Head)

 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -112,39 +95,13 @@ func MakeState(store adt.Store, av actors.Version, addr address.Address) (State,
 	case actors.Version7:
 		return make7(store, addr)

+	case actors.Version8:
+		return make8(store, addr)
+
 	}
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-
-	case actors.Version0:
-		return builtin0.AccountActorCodeID, nil
-
-	case actors.Version2:
-		return builtin2.AccountActorCodeID, nil
-
-	case actors.Version3:
-		return builtin3.AccountActorCodeID, nil
-
-	case actors.Version4:
-		return builtin4.AccountActorCodeID, nil
-
-	case actors.Version5:
-		return builtin5.AccountActorCodeID, nil
-
-	case actors.Version6:
-		return builtin6.AccountActorCodeID, nil
-
-	case actors.Version7:
-		return builtin7.AccountActorCodeID, nil
-
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler

@@ -6,32 +6,45 @@ import (

 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-state-types/cbor"
-	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"
 {{range .versions}}
-	builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+    {{if (le . 7)}}
+	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+	{{else}}
+        builtin{{.}} "github.com/filecoin-project/go-state-types/builtin"
+    {{end}}
 {{end}}
 )

-func init() {
-{{range .versions}}
-	builtin.RegisterActorState(builtin{{.}}.AccountActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load{{.}}(store, root)
-	})
-{{end}}}
-
-var Methods = builtin4.MethodsAccount
+var Methods = builtin{{.latestVersion}}.MethodsAccount

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+       if name != actors.AccountKey {
+          return nil, xerrors.Errorf("actor code is not account: %s", name)
+       }
+
+       switch av {
+            {{range .versions}}
+                {{if (ge . 8)}}
+                case actors.Version{{.}}:
+                     return load{{.}}(store, act.Head)
+                 {{end}}
+            {{end}}
+       }
+	}
+
 	switch act.Code {
 {{range .versions}}
-	case builtin{{.}}.AccountActorCodeID:
-		return load{{.}}(store, act.Head)
+    {{if (le . 7)}}
+        case builtin{{.}}.AccountActorCodeID:
+            return load{{.}}(store, act.Head)
+    {{end}}
 {{end}}
 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -45,17 +58,6 @@ func MakeState(store adt.Store, av actors.Version, addr address.Address) (State,
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-{{range .versions}}
-	case actors.Version{{.}}:
-		return builtin{{.}}.AccountActorCodeID, nil
-{{end}}
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler

@@ -6,7 +6,11 @@ import (

 	"github.com/filecoin-project/lotus/chain/actors/adt"

+{{if (le .v 7)}}
 	account{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin/account"
+{{else}}
+	account{{.v}} "github.com/filecoin-project/go-state-types/builtin{{.import}}account"
+{{end}}
 )

 var _ State = (*state{{.v}})(nil)
@@ -0,0 +1,40 @@
+package account
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	account8 "github.com/filecoin-project/go-state-types/builtin/v8/account"
+)
+
+var _ State = (*state8)(nil)
+
+func load8(store adt.Store, root cid.Cid) (State, error) {
+	out := state8{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+func make8(store adt.Store, addr address.Address) (State, error) {
+	out := state8{store: store}
+	out.State = account8.State{Address: addr}
+	return &out, nil
+}
+
+type state8 struct {
+	account8.State
+	store adt.Store
+}
+
+func (s *state8) PubkeyAddress() (address.Address, error) {
+	return s.Address, nil
+}
+
+func (s *state8) GetState() interface{} {
+	return &s.State
+}
@@ -1,133 +1,76 @@
 package builtin

 import (
+	"fmt"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"

 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
-	smoothing0 "github.com/filecoin-project/specs-actors/actors/util/smoothing"

 	builtin2 "github.com/filecoin-project/specs-actors/v2/actors/builtin"
-	smoothing2 "github.com/filecoin-project/specs-actors/v2/actors/util/smoothing"

 	builtin3 "github.com/filecoin-project/specs-actors/v3/actors/builtin"
-	smoothing3 "github.com/filecoin-project/specs-actors/v3/actors/util/smoothing"

 	builtin4 "github.com/filecoin-project/specs-actors/v4/actors/builtin"
-	smoothing4 "github.com/filecoin-project/specs-actors/v4/actors/util/smoothing"

 	builtin5 "github.com/filecoin-project/specs-actors/v5/actors/builtin"
-	smoothing5 "github.com/filecoin-project/specs-actors/v5/actors/util/smoothing"

 	builtin6 "github.com/filecoin-project/specs-actors/v6/actors/builtin"
-	smoothing6 "github.com/filecoin-project/specs-actors/v6/actors/util/smoothing"

 	builtin7 "github.com/filecoin-project/specs-actors/v7/actors/builtin"
-	smoothing7 "github.com/filecoin-project/specs-actors/v7/actors/util/smoothing"
+
+	builtin8 "github.com/filecoin-project/specs-actors/v8/actors/builtin"

 	"github.com/filecoin-project/go-state-types/abi"
-	"github.com/filecoin-project/go-state-types/cbor"
+	"github.com/filecoin-project/go-state-types/builtin"
+	"github.com/filecoin-project/go-state-types/proof"

-	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/actors"

-	miner7 "github.com/filecoin-project/specs-actors/v7/actors/builtin/miner"
-	proof7 "github.com/filecoin-project/specs-actors/v7/actors/runtime/proof"
+	miner8 "github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	smoothingtypes "github.com/filecoin-project/go-state-types/builtin/v8/util/smoothing"
 )

-var SystemActorAddr = builtin7.SystemActorAddr
-var BurntFundsActorAddr = builtin7.BurntFundsActorAddr
-var CronActorAddr = builtin7.CronActorAddr
+var SystemActorAddr = builtin.SystemActorAddr
+var BurntFundsActorAddr = builtin.BurntFundsActorAddr
+var CronActorAddr = builtin.CronActorAddr
 var SaftAddress = makeAddress("t0122")
 var ReserveAddress = makeAddress("t090")
 var RootVerifierAddress = makeAddress("t080")

 var (
-	ExpectedLeadersPerEpoch = builtin7.ExpectedLeadersPerEpoch
+	ExpectedLeadersPerEpoch = builtin.ExpectedLeadersPerEpoch
 )

 const (
-	EpochDurationSeconds = builtin7.EpochDurationSeconds
-	EpochsInDay          = builtin7.EpochsInDay
-	SecondsInDay         = builtin7.SecondsInDay
+	EpochDurationSeconds = builtin.EpochDurationSeconds
+	EpochsInDay          = builtin.EpochsInDay
+	SecondsInDay         = builtin.SecondsInDay
 )

 const (
-	MethodSend        = builtin7.MethodSend
-	MethodConstructor = builtin7.MethodConstructor
+	MethodSend        = builtin.MethodSend
+	MethodConstructor = builtin.MethodConstructor
 )

 // These are all just type aliases across actor versions. In the future, that might change
 // and we might need to do something fancier.
-type SectorInfo = proof7.SectorInfo
-type ExtendedSectorInfo = proof7.ExtendedSectorInfo
-type PoStProof = proof7.PoStProof
-type FilterEstimate = smoothing0.FilterEstimate
+type SectorInfo = proof.SectorInfo
+type ExtendedSectorInfo = proof.ExtendedSectorInfo
+type PoStProof = proof.PoStProof
+type FilterEstimate = smoothingtypes.FilterEstimate

 func QAPowerForWeight(size abi.SectorSize, duration abi.ChainEpoch, dealWeight, verifiedWeight abi.DealWeight) abi.StoragePower {
-	return miner7.QAPowerForWeight(size, duration, dealWeight, verifiedWeight)
-}
-
-func FromV0FilterEstimate(v0 smoothing0.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v0) //nolint:unconvert
-
-}
-
-func FromV2FilterEstimate(v2 smoothing2.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v2)
-
-}
-
-func FromV3FilterEstimate(v3 smoothing3.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v3)
-
-}
-
-func FromV4FilterEstimate(v4 smoothing4.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v4)
-
-}
-
-func FromV5FilterEstimate(v5 smoothing5.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v5)
-
-}
-
-func FromV6FilterEstimate(v6 smoothing6.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v6)
-
-}
-
-func FromV7FilterEstimate(v7 smoothing7.FilterEstimate) FilterEstimate {
-
-	return (FilterEstimate)(v7)
-
-}
-
-type ActorStateLoader func(store adt.Store, root cid.Cid) (cbor.Marshaler, error)
-
-var ActorStateLoaders = make(map[cid.Cid]ActorStateLoader)
-
-func RegisterActorState(code cid.Cid, loader ActorStateLoader) {
-	ActorStateLoaders[code] = loader
-}
-
-func Load(store adt.Store, act *types.Actor) (cbor.Marshaler, error) {
-	loader, found := ActorStateLoaders[act.Code]
-	if !found {
-		return nil, xerrors.Errorf("unknown actor code %s", act.Code)
-	}
-	return loader(store, act.Head)
+	return miner8.QAPowerForWeight(size, duration, dealWeight, verifiedWeight)
 }

 func ActorNameByCode(c cid.Cid) string {
+	if name, version, ok := actors.GetActorMetaByCode(c); ok {
+		return fmt.Sprintf("fil/%d/%s", version, name)
+	}
+
 	switch {

 	case builtin0.IsBuiltinActor(c):
@@ -151,12 +94,19 @@ func ActorNameByCode(c cid.Cid) string {
 	case builtin7.IsBuiltinActor(c):
 		return builtin7.ActorNameByCode(c)

+	case builtin8.IsBuiltinActor(c):
+		return builtin8.ActorNameByCode(c)
+
 	default:
 		return "<unknown>"
 	}
 }

 func IsBuiltinActor(c cid.Cid) bool {
+	_, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return true
+	}

 	if builtin0.IsBuiltinActor(c) {
 		return true
@@ -189,7 +139,44 @@ func IsBuiltinActor(c cid.Cid) bool {
 	return false
 }

+func GetAccountActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.AccountKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.AccountActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.AccountActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.AccountActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.AccountActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.AccountActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.AccountActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.AccountActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsAccountActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return name == "account"
+	}

 	if c == builtin0.AccountActorCodeID {
 		return true
@@ -222,7 +209,143 @@ func IsAccountActor(c cid.Cid) bool {
 	return false
 }

+func GetCronActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.CronKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.CronActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.CronActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.CronActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.CronActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.CronActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.CronActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.CronActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetInitActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.InitKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.InitActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.InitActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.InitActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.InitActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.InitActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.InitActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.InitActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetMarketActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MarketKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.StorageMarketActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.StorageMarketActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.StorageMarketActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.StorageMarketActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.StorageMarketActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.StorageMarketActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.StorageMarketActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetMinerActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MinerKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.StorageMinerActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.StorageMinerActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.StorageMinerActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.StorageMinerActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.StorageMinerActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.StorageMinerActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.StorageMinerActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsStorageMinerActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return name == actors.MinerKey
+	}

 	if c == builtin0.StorageMinerActorCodeID {
 		return true
@@ -255,7 +378,44 @@ func IsStorageMinerActor(c cid.Cid) bool {
 	return false
 }

+func GetMultisigActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MultisigKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.MultisigActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.MultisigActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.MultisigActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.MultisigActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.MultisigActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.MultisigActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.MultisigActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsMultisigActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return name == actors.MultisigKey
+	}

 	if c == builtin0.MultisigActorCodeID {
 		return true
@@ -288,7 +448,44 @@ func IsMultisigActor(c cid.Cid) bool {
 	return false
 }

+func GetPaymentChannelActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.PaychKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.PaymentChannelActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.PaymentChannelActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.PaymentChannelActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.PaymentChannelActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.PaymentChannelActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.PaymentChannelActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.PaymentChannelActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsPaymentChannelActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+	if ok {
+		return name == "paymentchannel"
+	}

 	if c == builtin0.PaymentChannelActorCodeID {
 		return true
@@ -321,6 +518,138 @@ func IsPaymentChannelActor(c cid.Cid) bool {
 	return false
 }

+func GetPowerActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.PowerKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.StoragePowerActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.StoragePowerActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.StoragePowerActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.StoragePowerActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.StoragePowerActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.StoragePowerActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.StoragePowerActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetRewardActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.RewardKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.RewardActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.RewardActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.RewardActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.RewardActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.RewardActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.RewardActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.RewardActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetSystemActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.SystemKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.SystemActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.SystemActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.SystemActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.SystemActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.SystemActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.SystemActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.SystemActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetVerifregActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.VerifregKey); ok {
+		return c, nil
+	}
+
+	switch av {
+
+	case actors.Version0:
+		return builtin0.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version2:
+		return builtin2.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version3:
+		return builtin3.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version4:
+		return builtin4.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version5:
+		return builtin5.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version6:
+		return builtin6.VerifiedRegistryActorCodeID, nil
+
+	case actors.Version7:
+		return builtin7.VerifiedRegistryActorCodeID, nil
+
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func makeAddress(addr string) address.Address {
 	ret, err := address.NewFromString(addr)
 	if err != nil {
@@ -1,140 +1,341 @@
 package builtin

 import (
+	"fmt"
+
 	"github.com/filecoin-project/go-address"
 	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"

-	{{range .versions}}
-		builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
-		smoothing{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/util/smoothing"
-	{{end}}
+{{range .versions}}
+	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+{{end}}

 	"github.com/filecoin-project/go-state-types/abi"
-	"github.com/filecoin-project/go-state-types/cbor"
+	"github.com/filecoin-project/go-state-types/proof"
+    "github.com/filecoin-project/go-state-types/builtin"

-	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/chain/actors"

-	miner{{.latestVersion}} "github.com/filecoin-project/specs-actors{{import .latestVersion}}actors/builtin/miner"
-	proof{{.latestVersion}} "github.com/filecoin-project/specs-actors{{import .latestVersion}}actors/runtime/proof"
+	miner{{.latestVersion}} "github.com/filecoin-project/go-state-types/builtin/v8/miner"
+	smoothingtypes "github.com/filecoin-project/go-state-types/builtin/v8/util/smoothing"
 )

-var SystemActorAddr = builtin{{.latestVersion}}.SystemActorAddr
-var BurntFundsActorAddr = builtin{{.latestVersion}}.BurntFundsActorAddr
-var CronActorAddr = builtin{{.latestVersion}}.CronActorAddr
+var SystemActorAddr = builtin.SystemActorAddr
+var BurntFundsActorAddr = builtin.BurntFundsActorAddr
+var CronActorAddr = builtin.CronActorAddr
 var SaftAddress = makeAddress("t0122")
 var ReserveAddress = makeAddress("t090")
 var RootVerifierAddress = makeAddress("t080")

 var (
-	ExpectedLeadersPerEpoch = builtin{{.latestVersion}}.ExpectedLeadersPerEpoch
+	ExpectedLeadersPerEpoch = builtin.ExpectedLeadersPerEpoch
 )

 const (
-	EpochDurationSeconds = builtin{{.latestVersion}}.EpochDurationSeconds
-	EpochsInDay          = builtin{{.latestVersion}}.EpochsInDay
-	SecondsInDay         = builtin{{.latestVersion}}.SecondsInDay
+	EpochDurationSeconds = builtin.EpochDurationSeconds
+	EpochsInDay          = builtin.EpochsInDay
+	SecondsInDay         = builtin.SecondsInDay
 )

 const (
-	MethodSend        = builtin{{.latestVersion}}.MethodSend
-	MethodConstructor = builtin{{.latestVersion}}.MethodConstructor
+	MethodSend        = builtin.MethodSend
+	MethodConstructor = builtin.MethodConstructor
 )

 // These are all just type aliases across actor versions. In the future, that might change
 // and we might need to do something fancier.
-type SectorInfo = proof{{.latestVersion}}.SectorInfo
-type ExtendedSectorInfo = proof{{.latestVersion}}.ExtendedSectorInfo
-type PoStProof = proof{{.latestVersion}}.PoStProof
-type FilterEstimate = smoothing0.FilterEstimate
+type SectorInfo = proof.SectorInfo
+type ExtendedSectorInfo = proof.ExtendedSectorInfo
+type PoStProof = proof.PoStProof
+type FilterEstimate = smoothingtypes.FilterEstimate

 func QAPowerForWeight(size abi.SectorSize, duration abi.ChainEpoch, dealWeight, verifiedWeight abi.DealWeight) abi.StoragePower {
 	return miner{{.latestVersion}}.QAPowerForWeight(size, duration, dealWeight, verifiedWeight)
 }

-{{range .versions}}
-	func FromV{{.}}FilterEstimate(v{{.}} smoothing{{.}}.FilterEstimate) FilterEstimate {
-	{{if (eq . 0)}}
-		return (FilterEstimate)(v{{.}}) //nolint:unconvert
-	{{else}}
-		return (FilterEstimate)(v{{.}})
-	{{end}}
-	}
-{{end}}
-
-type ActorStateLoader func(store adt.Store, root cid.Cid) (cbor.Marshaler, error)
-
-var ActorStateLoaders = make(map[cid.Cid]ActorStateLoader)
-
-func RegisterActorState(code cid.Cid, loader ActorStateLoader) {
-	ActorStateLoaders[code] = loader
-}
-
-func Load(store adt.Store, act *types.Actor) (cbor.Marshaler, error) {
-	loader, found := ActorStateLoaders[act.Code]
-	if !found {
-		return nil, xerrors.Errorf("unknown actor code %s", act.Code)
-	}
-	return loader(store, act.Head)
-}
-
 func ActorNameByCode(c cid.Cid) string {
+	if name, version, ok := actors.GetActorMetaByCode(c); ok {
+		return fmt.Sprintf("fil/%d/%s", version, name)
+	}
+
 	switch {
-		{{range .versions}}
-			case builtin{{.}}.IsBuiltinActor(c):
-			return builtin{{.}}.ActorNameByCode(c)
-		{{end}}
+	    {{range .versions}}
+            case builtin{{.}}.IsBuiltinActor(c):
+            return builtin{{.}}.ActorNameByCode(c)
+        {{end}}
 	default:
 		return "<unknown>"
 	}
 }

 func IsBuiltinActor(c cid.Cid) bool {
+	_, _, ok := actors.GetActorMetaByCode(c)
+    if ok {
+    	return true
+	}
+
 	{{range .versions}}
-		if builtin{{.}}.IsBuiltinActor(c) {
-			return true
-		}
+	    {{if (le . 7)}}
+            if builtin{{.}}.IsBuiltinActor(c) {
+                return true
+            }
+	    {{end}}
 	{{end}}
 	return false
 }

+func GetAccountActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.AccountKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.AccountActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsAccountActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+    if ok {
+    	return name == "account"
+	}
+
 	{{range .versions}}
-		if c == builtin{{.}}.AccountActorCodeID {
-			return true
-		}
+        {{if (le . 7)}}
+            if c == builtin{{.}}.AccountActorCodeID {
+                return true
+            }
+        {{end}}
 	{{end}}
 	return false
 }

+func GetCronActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.CronKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.CronActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetInitActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.InitKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.InitActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetMarketActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MarketKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.StorageMarketActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetMinerActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MinerKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.StorageMinerActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsStorageMinerActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+    if ok {
+    	return name == actors.MinerKey
+	}
+
 	{{range .versions}}
-		if c == builtin{{.}}.StorageMinerActorCodeID {
-			return true
-		}
+        {{if (le . 7)}}
+            if c == builtin{{.}}.StorageMinerActorCodeID {
+                return true
+            }
+        {{end}}
 	{{end}}
 	return false
 }

+func GetMultisigActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.MultisigKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.MultisigActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsMultisigActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+    if ok {
+    	return name == actors.MultisigKey
+	}
+
 	{{range .versions}}
-		if c == builtin{{.}}.MultisigActorCodeID {
-			return true
-		}
+        {{if (le . 7)}}
+            if c == builtin{{.}}.MultisigActorCodeID {
+                return true
+            }
+        {{end}}
 	{{end}}
 	return false
 }

+func GetPaymentChannelActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.PaychKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.PaymentChannelActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func IsPaymentChannelActor(c cid.Cid) bool {
+	name, _, ok := actors.GetActorMetaByCode(c)
+    if ok {
+    	return name == "paymentchannel"
+	}
+
 	{{range .versions}}
-		if c == builtin{{.}}.PaymentChannelActorCodeID {
-			return true
-		}
+        {{if (le . 7)}}
+            if c == builtin{{.}}.PaymentChannelActorCodeID {
+                return true
+            }
+        {{end}}
 	{{end}}
 	return false
 }

+func GetPowerActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.PowerKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.StoragePowerActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetRewardActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.RewardKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.RewardActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetSystemActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.SystemKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.SystemActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
+func GetVerifregActorCodeID(av actors.Version) (cid.Cid, error) {
+	if c, ok := actors.GetActorCodeID(av, actors.VerifregKey); ok {
+		return c, nil
+	}
+
+	switch av {
+        {{range .versions}}
+            {{if (le . 7)}}
+            case actors.Version{{.}}:
+                return builtin{{.}}.VerifiedRegistryActorCodeID, nil
+            {{end}}
+        {{end}}
+	}
+
+	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
+}
+
 func makeAddress(addr string) address.Address {
 	ret, err := address.NewFromString(addr)
 	if err != nil {
@@ -4,12 +4,45 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"golang.org/x/xerrors"
-	"github.com/ipfs/go-cid"
+	"github.com/filecoin-project/lotus/chain/types"
+
 {{range .versions}}
-	builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+    {{if (le . 7)}}
+	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+	{{else}}
+        builtin{{.}} "github.com/filecoin-project/go-state-types/builtin"
+    {{end}}
 {{end}}
 )

+func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+       if name != actors.CronKey {
+          return nil, xerrors.Errorf("actor code is not cron: %s", name)
+       }
+
+       switch av {
+            {{range .versions}}
+                {{if (ge . 8)}}
+                case actors.Version{{.}}:
+                     return load{{.}}(store, act.Head)
+                 {{end}}
+            {{end}}
+       }
+	}
+
+	switch act.Code {
+{{range .versions}}
+    {{if (le . 7)}}
+        case builtin{{.}}.CronActorCodeID:
+            return load{{.}}(store, act.Head)
+    {{end}}
+{{end}}
+	}
+
+	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
+}
+
 func MakeState(store adt.Store, av actors.Version) (State, error) {
 	switch av {
 {{range .versions}}
@@ -20,17 +53,6 @@ func MakeState(store adt.Store, av actors.Version) (State, error) {
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-{{range .versions}}
-	case actors.Version{{.}}:
-		return builtin{{.}}.CronActorCodeID, nil
-{{end}}
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 var (
 	Address = builtin{{.latestVersion}}.CronActorAddr
 	Methods = builtin{{.latestVersion}}.MethodsCron
@@ -3,7 +3,7 @@ package cron
 import (
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/ipfs/go-cid"
+	"github.com/filecoin-project/lotus/chain/types"
 	"golang.org/x/xerrors"

 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"
@@ -19,8 +19,52 @@ import (
 	builtin6 "github.com/filecoin-project/specs-actors/v6/actors/builtin"

 	builtin7 "github.com/filecoin-project/specs-actors/v7/actors/builtin"
+
+	builtin8 "github.com/filecoin-project/go-state-types/builtin"
 )

+func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+		if name != actors.CronKey {
+			return nil, xerrors.Errorf("actor code is not cron: %s", name)
+		}
+
+		switch av {
+
+		case actors.Version8:
+			return load8(store, act.Head)
+
+		}
+	}
+
+	switch act.Code {
+
+	case builtin0.CronActorCodeID:
+		return load0(store, act.Head)
+
+	case builtin2.CronActorCodeID:
+		return load2(store, act.Head)
+
+	case builtin3.CronActorCodeID:
+		return load3(store, act.Head)
+
+	case builtin4.CronActorCodeID:
+		return load4(store, act.Head)
+
+	case builtin5.CronActorCodeID:
+		return load5(store, act.Head)
+
+	case builtin6.CronActorCodeID:
+		return load6(store, act.Head)
+
+	case builtin7.CronActorCodeID:
+		return load7(store, act.Head)
+
+	}
+
+	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
+}
+
 func MakeState(store adt.Store, av actors.Version) (State, error) {
 	switch av {

@@ -45,42 +89,16 @@ func MakeState(store adt.Store, av actors.Version) (State, error) {
 	case actors.Version7:
 		return make7(store)

+	case actors.Version8:
+		return make8(store)
+
 	}
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-
-	case actors.Version0:
-		return builtin0.CronActorCodeID, nil
-
-	case actors.Version2:
-		return builtin2.CronActorCodeID, nil
-
-	case actors.Version3:
-		return builtin3.CronActorCodeID, nil
-
-	case actors.Version4:
-		return builtin4.CronActorCodeID, nil
-
-	case actors.Version5:
-		return builtin5.CronActorCodeID, nil
-
-	case actors.Version6:
-		return builtin6.CronActorCodeID, nil
-
-	case actors.Version7:
-		return builtin7.CronActorCodeID, nil
-
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 var (
-	Address = builtin7.CronActorAddr
-	Methods = builtin7.MethodsCron
+	Address = builtin8.CronActorAddr
+	Methods = builtin8.MethodsCron
 )

 type State interface {
@@ -5,7 +5,11 @@ import (

 	"github.com/filecoin-project/lotus/chain/actors/adt"

+{{if (le .v 7)}}
 	cron{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin/cron"
+{{else}}
+	cron{{.v}} "github.com/filecoin-project/go-state-types/builtin{{.import}}cron"
+{{end}}
 )

 var _ State = (*state{{.v}})(nil)
@@ -0,0 +1,35 @@
+package cron
+
+import (
+	"github.com/ipfs/go-cid"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+
+	cron8 "github.com/filecoin-project/go-state-types/builtin/v8/cron"
+)
+
+var _ State = (*state8)(nil)
+
+func load8(store adt.Store, root cid.Cid) (State, error) {
+	out := state8{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+func make8(store adt.Store) (State, error) {
+	out := state8{store: store}
+	out.State = *cron8.ConstructState(cron8.BuiltInEntries())
+	return &out, nil
+}
+
+type state8 struct {
+	cron8.State
+	store adt.Store
+}
+
+func (s *state8) GetState() interface{} {
+	return &s.State
+}
@@ -10,33 +10,47 @@ import (
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"
 {{range .versions}}
-	builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+    {{if (le . 7)}}
+	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+	{{else}}
+        builtin{{.}} "github.com/filecoin-project/go-state-types/builtin"
+    {{end}}
 {{end}}
 )

-func init() {
-{{range .versions}}
-	builtin.RegisterActorState(builtin{{.}}.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load{{.}}(store, root)
-	})
-{{end}}}
-
 var (
 	Address = builtin{{.latestVersion}}.InitActorAddr
 	Methods = builtin{{.latestVersion}}.MethodsInit
 )

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+       if name != actors.InitKey {
+          return nil, xerrors.Errorf("actor code is not init: %s", name)
+       }
+
+       switch av {
+            {{range .versions}}
+                {{if (ge . 8)}}
+                case actors.Version{{.}}:
+                     return load{{.}}(store, act.Head)
+                 {{end}}
+            {{end}}
+       }
+	}
+
 	switch act.Code {
 {{range .versions}}
-	case builtin{{.}}.InitActorCodeID:
-		return load{{.}}(store, act.Head)
+    {{if (le . 7)}}
+        case builtin{{.}}.InitActorCodeID:
+            return load{{.}}(store, act.Head)
+    {{end}}
 {{end}}
 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -50,17 +64,6 @@ func MakeState(store adt.Store, av actors.Version, networkName string) (State, e
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-{{range .versions}}
-	case actors.Version{{.}}:
-		return builtin{{.}}.InitActorCodeID, nil
-{{end}}
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler

@@ -10,7 +10,6 @@ import (
 	"github.com/ipfs/go-cid"

 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"

@@ -27,45 +26,29 @@ import (
 	builtin6 "github.com/filecoin-project/specs-actors/v6/actors/builtin"

 	builtin7 "github.com/filecoin-project/specs-actors/v7/actors/builtin"
+
+	builtin8 "github.com/filecoin-project/go-state-types/builtin"
 )

-func init() {
-
-	builtin.RegisterActorState(builtin0.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load0(store, root)
-	})
-
-	builtin.RegisterActorState(builtin2.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load2(store, root)
-	})
-
-	builtin.RegisterActorState(builtin3.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load3(store, root)
-	})
-
-	builtin.RegisterActorState(builtin4.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load4(store, root)
-	})
-
-	builtin.RegisterActorState(builtin5.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load5(store, root)
-	})
-
-	builtin.RegisterActorState(builtin6.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load6(store, root)
-	})
-
-	builtin.RegisterActorState(builtin7.InitActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load7(store, root)
-	})
-}
-
 var (
-	Address = builtin7.InitActorAddr
-	Methods = builtin7.MethodsInit
+	Address = builtin8.InitActorAddr
+	Methods = builtin8.MethodsInit
 )

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+		if name != actors.InitKey {
+			return nil, xerrors.Errorf("actor code is not init: %s", name)
+		}
+
+		switch av {
+
+		case actors.Version8:
+			return load8(store, act.Head)
+
+		}
+	}
+
 	switch act.Code {

 	case builtin0.InitActorCodeID:
@@ -90,6 +73,7 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load7(store, act.Head)

 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -117,39 +101,13 @@ func MakeState(store adt.Store, av actors.Version, networkName string) (State, e
 	case actors.Version7:
 		return make7(store, networkName)

+	case actors.Version8:
+		return make8(store, networkName)
+
 	}
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-
-	case actors.Version0:
-		return builtin0.InitActorCodeID, nil
-
-	case actors.Version2:
-		return builtin2.InitActorCodeID, nil
-
-	case actors.Version3:
-		return builtin3.InitActorCodeID, nil
-
-	case actors.Version4:
-		return builtin4.InitActorCodeID, nil
-
-	case actors.Version5:
-		return builtin5.InitActorCodeID, nil
-
-	case actors.Version6:
-		return builtin6.InitActorCodeID, nil
-
-	case actors.Version7:
-		return builtin7.InitActorCodeID, nil
-
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler

@@ -10,12 +10,17 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/node/modules/dtypes"

-{{if (ge .v 3)}}
-	builtin{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin"
-{{end}}
-
+{{if (le .v 7)}}
+    {{if (ge .v 3)}}
+        builtin{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin"
+    {{end}}
 	init{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin/init"
 	adt{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/util/adt"
+{{else}}
+	init{{.v}} "github.com/filecoin-project/go-state-types/builtin{{.import}}init"
+	adt{{.v}} "github.com/filecoin-project/go-state-types/builtin{{.import}}util/adt"
+	builtin{{.v}} "github.com/filecoin-project/go-state-types/builtin"
+{{end}}
 )

 var _ State = (*state{{.v}})(nil)
@@ -0,0 +1,113 @@
+package init
+
+import (
+	"github.com/filecoin-project/go-address"
+	"github.com/filecoin-project/go-state-types/abi"
+	"github.com/ipfs/go-cid"
+	cbg "github.com/whyrusleeping/cbor-gen"
+	"golang.org/x/xerrors"
+
+	"github.com/filecoin-project/lotus/chain/actors/adt"
+	"github.com/filecoin-project/lotus/node/modules/dtypes"
+
+	builtin8 "github.com/filecoin-project/go-state-types/builtin"
+	init8 "github.com/filecoin-project/go-state-types/builtin/v8/init"
+	adt8 "github.com/filecoin-project/go-state-types/builtin/v8/util/adt"
+)
+
+var _ State = (*state8)(nil)
+
+func load8(store adt.Store, root cid.Cid) (State, error) {
+	out := state8{store: store}
+	err := store.Get(store.Context(), root, &out)
+	if err != nil {
+		return nil, err
+	}
+	return &out, nil
+}
+
+func make8(store adt.Store, networkName string) (State, error) {
+	out := state8{store: store}
+
+	s, err := init8.ConstructState(store, networkName)
+	if err != nil {
+		return nil, err
+	}
+
+	out.State = *s
+
+	return &out, nil
+}
+
+type state8 struct {
+	init8.State
+	store adt.Store
+}
+
+func (s *state8) ResolveAddress(address address.Address) (address.Address, bool, error) {
+	return s.State.ResolveAddress(s.store, address)
+}
+
+func (s *state8) MapAddressToNewID(address address.Address) (address.Address, error) {
+	return s.State.MapAddressToNewID(s.store, address)
+}
+
+func (s *state8) ForEachActor(cb func(id abi.ActorID, address address.Address) error) error {
+	addrs, err := adt8.AsMap(s.store, s.State.AddressMap, builtin8.DefaultHamtBitwidth)
+	if err != nil {
+		return err
+	}
+	var actorID cbg.CborInt
+	return addrs.ForEach(&actorID, func(key string) error {
+		addr, err := address.NewFromBytes([]byte(key))
+		if err != nil {
+			return err
+		}
+		return cb(abi.ActorID(actorID), addr)
+	})
+}
+
+func (s *state8) NetworkName() (dtypes.NetworkName, error) {
+	return dtypes.NetworkName(s.State.NetworkName), nil
+}
+
+func (s *state8) SetNetworkName(name string) error {
+	s.State.NetworkName = name
+	return nil
+}
+
+func (s *state8) SetNextID(id abi.ActorID) error {
+	s.State.NextID = id
+	return nil
+}
+
+func (s *state8) Remove(addrs ...address.Address) (err error) {
+	m, err := adt8.AsMap(s.store, s.State.AddressMap, builtin8.DefaultHamtBitwidth)
+	if err != nil {
+		return err
+	}
+	for _, addr := range addrs {
+		if err = m.Delete(abi.AddrKey(addr)); err != nil {
+			return xerrors.Errorf("failed to delete entry for address: %s; err: %w", addr, err)
+		}
+	}
+	amr, err := m.Root()
+	if err != nil {
+		return xerrors.Errorf("failed to get address map root: %w", err)
+	}
+	s.State.AddressMap = amr
+	return nil
+}
+
+func (s *state8) SetAddressMap(mcid cid.Cid) error {
+	s.State.AddressMap = mcid
+	return nil
+}
+
+func (s *state8) AddressMap() (adt.Map, error) {
+	return adt8.AsMap(s.store, s.State.AddressMap, builtin8.DefaultHamtBitwidth)
+}
+
+func (s *state8) GetState() interface{} {
+	return &s.State
+}
@@ -1,6 +1,8 @@
 package market

 import (
+	"unicode/utf8"
+
 	"github.com/filecoin-project/go-state-types/network"
 	"golang.org/x/xerrors"

@@ -8,39 +10,52 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/cbor"
-	"github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"

-	market0 "github.com/filecoin-project/specs-actors/actors/builtin/market"
+	market{{.latestVersion}} "github.com/filecoin-project/go-state-types/builtin{{import .latestVersion}}market"
 {{range .versions}}
-	builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+    {{if (le . 7)}}
+	    builtin{{.}} "github.com/filecoin-project/specs-actors{{import .}}actors/builtin"
+	{{else}}
+        builtin{{.}} "github.com/filecoin-project/go-state-types/builtin"
+    {{end}}
 {{end}}

 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/actors"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"
 )

-func init() {
-{{range .versions}}
-	builtin.RegisterActorState(builtin{{.}}.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load{{.}}(store, root)
-	})
-{{end}}}
-
 var (
 	Address = builtin{{.latestVersion}}.StorageMarketActorAddr
 	Methods = builtin{{.latestVersion}}.MethodsMarket
 )

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+       if name != actors.MarketKey {
+          return nil, xerrors.Errorf("actor code is not market: %s", name)
+       }
+
+       switch av {
+            {{range .versions}}
+                {{if (ge . 8)}}
+                case actors.Version{{.}}:
+                     return load{{.}}(store, act.Head)
+                 {{end}}
+            {{end}}
+       }
+	}
+
 	switch act.Code {
 {{range .versions}}
-	case builtin{{.}}.StorageMarketActorCodeID:
-		return load{{.}}(store, act.Head)
+    {{if (le . 7)}}
+        case builtin{{.}}.StorageMarketActorCodeID:
+            return load{{.}}(store, act.Head)
+    {{end}}
 {{end}}
 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -54,17 +69,6 @@ func MakeState(store adt.Store, av actors.Version) (State, error) {
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-{{range .versions}}
-	case actors.Version{{.}}:
-		return builtin{{.}}.StorageMarketActorCodeID, nil
-{{end}}
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler
 	BalancesChanged(State) (bool, error)
@@ -96,19 +100,18 @@ type DealStates interface {
 }

 type DealProposals interface {
-	ForEach(cb func(id abi.DealID, dp DealProposal) error) error
-	Get(id abi.DealID) (*DealProposal, bool, error)
+	ForEach(cb func(id abi.DealID, dp market{{.latestVersion}}.DealProposal) error) error
+	Get(id abi.DealID) (*market{{.latestVersion}}.DealProposal, bool, error)

 	array() adt.Array
-	decode(*cbg.Deferred) (*DealProposal, error)
+	decode(*cbg.Deferred) (*market{{.latestVersion}}.DealProposal, error)
 }

-type PublishStorageDealsParams = market0.PublishStorageDealsParams

 type PublishStorageDealsReturn interface {
    DealIDs() ([]abi.DealID, error)
 	// Note that this index is based on the batch of deals that were published, NOT the DealID
-	IsDealValid(index uint64) (bool, error)
+	IsDealValid(index uint64) (bool, int, error)
 }

 func DecodePublishStorageDealsReturn(b []byte, nv network.Version) (PublishStorageDealsReturn, error) {
@@ -126,30 +129,9 @@ func DecodePublishStorageDealsReturn(b []byte, nv network.Version) (PublishStora
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-type VerifyDealsForActivationParams = market0.VerifyDealsForActivationParams
-type WithdrawBalanceParams = market0.WithdrawBalanceParams
+type DealProposal = market{{.latestVersion}}.DealProposal

-type ClientDealProposal = market0.ClientDealProposal
-
-type DealState struct {
-	SectorStartEpoch abi.ChainEpoch // -1 if not yet included in proven sector
-	LastUpdatedEpoch abi.ChainEpoch // -1 if deal state never updated
-	SlashEpoch       abi.ChainEpoch // -1 if deal never slashed
-}
-
-type DealProposal struct {
-	PieceCID			 cid.Cid
-	PieceSize			 abi.PaddedPieceSize
-	VerifiedDeal		 bool
-	Client				 address.Address
-	Provider			 address.Address
-	Label				 string
-	StartEpoch			 abi.ChainEpoch
-	EndEpoch			 abi.ChainEpoch
-	StoragePricePerEpoch abi.TokenAmount
-	ProviderCollateral	 abi.TokenAmount
-	ClientCollateral	 abi.TokenAmount
-}
+type DealState = market{{.latestVersion}}.DealState

 type DealStateChanges struct {
 	Added	 []DealIDState
@@ -176,7 +158,7 @@ type DealProposalChanges struct {

 type ProposalIDState struct {
 	ID		 abi.DealID
-	Proposal DealProposal
+	Proposal market{{.latestVersion}}.DealProposal
 }

 func EmptyDealState() *DealState {
@@ -188,7 +170,7 @@ func EmptyDealState() *DealState {
 }

 // returns the earned fees and pending fees for a given deal
-func (deal DealProposal) GetDealFees(height abi.ChainEpoch) (abi.TokenAmount, abi.TokenAmount) {
+func GetDealFees(deal market{{.latestVersion}}.DealProposal, height abi.ChainEpoch) (abi.TokenAmount, abi.TokenAmount) {
 	   tf := big.Mul(deal.StoragePricePerEpoch, big.NewInt(int64(deal.EndEpoch-deal.StartEpoch)))

 	   ef := big.Mul(deal.StoragePricePerEpoch, big.NewInt(int64(height-deal.StartEpoch)))
@@ -202,3 +184,11 @@ func (deal DealProposal) GetDealFees(height abi.ChainEpoch) (abi.TokenAmount, ab

 	   return ef, big.Sub(tf, ef)
 }
+
+func labelFromGoString(s string) (market{{.latestVersion}}.DealLabel, error) {
+	if utf8.ValidString(s) {
+		return market{{.latestVersion}}.NewLabelFromString(s)
+	} else {
+		return market{{.latestVersion}}.NewLabelFromBytes([]byte(s))
+	}
+}
@@ -1,6 +1,8 @@
 package market

 import (
+	"unicode/utf8"
+
 	"github.com/filecoin-project/go-state-types/network"
 	"golang.org/x/xerrors"

@@ -8,10 +10,9 @@ import (
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/go-state-types/big"
 	"github.com/filecoin-project/go-state-types/cbor"
-	"github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"

-	market0 "github.com/filecoin-project/specs-actors/actors/builtin/market"
+	market8 "github.com/filecoin-project/go-state-types/builtin/v8/market"

 	builtin0 "github.com/filecoin-project/specs-actors/actors/builtin"

@@ -27,49 +28,32 @@ import (

 	builtin7 "github.com/filecoin-project/specs-actors/v7/actors/builtin"

+	builtin8 "github.com/filecoin-project/go-state-types/builtin"
+
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/adt"
-	"github.com/filecoin-project/lotus/chain/actors/builtin"
 	"github.com/filecoin-project/lotus/chain/types"
 )

-func init() {
-
-	builtin.RegisterActorState(builtin0.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load0(store, root)
-	})
-
-	builtin.RegisterActorState(builtin2.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load2(store, root)
-	})
-
-	builtin.RegisterActorState(builtin3.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load3(store, root)
-	})
-
-	builtin.RegisterActorState(builtin4.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load4(store, root)
-	})
-
-	builtin.RegisterActorState(builtin5.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load5(store, root)
-	})
-
-	builtin.RegisterActorState(builtin6.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load6(store, root)
-	})
-
-	builtin.RegisterActorState(builtin7.StorageMarketActorCodeID, func(store adt.Store, root cid.Cid) (cbor.Marshaler, error) {
-		return load7(store, root)
-	})
-}
-
 var (
-	Address = builtin7.StorageMarketActorAddr
-	Methods = builtin7.MethodsMarket
+	Address = builtin8.StorageMarketActorAddr
+	Methods = builtin8.MethodsMarket
 )

 func Load(store adt.Store, act *types.Actor) (State, error) {
+	if name, av, ok := actors.GetActorMetaByCode(act.Code); ok {
+		if name != actors.MarketKey {
+			return nil, xerrors.Errorf("actor code is not market: %s", name)
+		}
+
+		switch av {
+
+		case actors.Version8:
+			return load8(store, act.Head)
+
+		}
+	}
+
 	switch act.Code {

 	case builtin0.StorageMarketActorCodeID:
@@ -94,6 +78,7 @@ func Load(store adt.Store, act *types.Actor) (State, error) {
 		return load7(store, act.Head)

 	}
+
 	return nil, xerrors.Errorf("unknown actor code %s", act.Code)
 }

@@ -121,39 +106,13 @@ func MakeState(store adt.Store, av actors.Version) (State, error) {
 	case actors.Version7:
 		return make7(store)

+	case actors.Version8:
+		return make8(store)
+
 	}
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-func GetActorCodeID(av actors.Version) (cid.Cid, error) {
-	switch av {
-
-	case actors.Version0:
-		return builtin0.StorageMarketActorCodeID, nil
-
-	case actors.Version2:
-		return builtin2.StorageMarketActorCodeID, nil
-
-	case actors.Version3:
-		return builtin3.StorageMarketActorCodeID, nil
-
-	case actors.Version4:
-		return builtin4.StorageMarketActorCodeID, nil
-
-	case actors.Version5:
-		return builtin5.StorageMarketActorCodeID, nil
-
-	case actors.Version6:
-		return builtin6.StorageMarketActorCodeID, nil
-
-	case actors.Version7:
-		return builtin7.StorageMarketActorCodeID, nil
-
-	}
-
-	return cid.Undef, xerrors.Errorf("unknown actor version %d", av)
-}
-
 type State interface {
 	cbor.Marshaler
 	BalancesChanged(State) (bool, error)
@@ -185,19 +144,17 @@ type DealStates interface {
 }

 type DealProposals interface {
-	ForEach(cb func(id abi.DealID, dp DealProposal) error) error
-	Get(id abi.DealID) (*DealProposal, bool, error)
+	ForEach(cb func(id abi.DealID, dp market8.DealProposal) error) error
+	Get(id abi.DealID) (*market8.DealProposal, bool, error)

 	array() adt.Array
-	decode(*cbg.Deferred) (*DealProposal, error)
+	decode(*cbg.Deferred) (*market8.DealProposal, error)
 }

-type PublishStorageDealsParams = market0.PublishStorageDealsParams
-
 type PublishStorageDealsReturn interface {
 	DealIDs() ([]abi.DealID, error)
 	// Note that this index is based on the batch of deals that were published, NOT the DealID
-	IsDealValid(index uint64) (bool, error)
+	IsDealValid(index uint64) (bool, int, error)
 }

 func DecodePublishStorageDealsReturn(b []byte, nv network.Version) (PublishStorageDealsReturn, error) {
@@ -229,34 +186,16 @@ func DecodePublishStorageDealsReturn(b []byte, nv network.Version) (PublishStora
 	case actors.Version7:
 		return decodePublishStorageDealsReturn7(b)

+	case actors.Version8:
+		return decodePublishStorageDealsReturn8(b)
+
 	}
 	return nil, xerrors.Errorf("unknown actor version %d", av)
 }

-type VerifyDealsForActivationParams = market0.VerifyDealsForActivationParams
-type WithdrawBalanceParams = market0.WithdrawBalanceParams
+type DealProposal = market8.DealProposal

-type ClientDealProposal = market0.ClientDealProposal
-
-type DealState struct {
-	SectorStartEpoch abi.ChainEpoch // -1 if not yet included in proven sector
-	LastUpdatedEpoch abi.ChainEpoch // -1 if deal state never updated
-	SlashEpoch       abi.ChainEpoch // -1 if deal never slashed
-}
-
-type DealProposal struct {
-	PieceCID             cid.Cid
-	PieceSize            abi.PaddedPieceSize
-	VerifiedDeal         bool
-	Client               address.Address
-	Provider             address.Address
-	Label                string
-	StartEpoch           abi.ChainEpoch
-	EndEpoch             abi.ChainEpoch
-	StoragePricePerEpoch abi.TokenAmount
-	ProviderCollateral   abi.TokenAmount
-	ClientCollateral     abi.TokenAmount
-}
+type DealState = market8.DealState

 type DealStateChanges struct {
 	Added    []DealIDState
@@ -283,7 +222,7 @@ type DealProposalChanges struct {

 type ProposalIDState struct {
 	ID       abi.DealID
-	Proposal DealProposal
+	Proposal market8.DealProposal
 }

 func EmptyDealState() *DealState {
@@ -295,7 +234,7 @@ func EmptyDealState() *DealState {
 }

 // returns the earned fees and pending fees for a given deal
-func (deal DealProposal) GetDealFees(height abi.ChainEpoch) (abi.TokenAmount, abi.TokenAmount) {
+func GetDealFees(deal market8.DealProposal, height abi.ChainEpoch) (abi.TokenAmount, abi.TokenAmount) {
 	tf := big.Mul(deal.StoragePricePerEpoch, big.NewInt(int64(deal.EndEpoch-deal.StartEpoch)))

 	ef := big.Mul(deal.StoragePricePerEpoch, big.NewInt(int64(height-deal.StartEpoch)))
@@ -309,3 +248,11 @@ func (deal DealProposal) GetDealFees(height abi.ChainEpoch) (abi.TokenAmount, ab

 	return ef, big.Sub(tf, ef)
 }
+
+func labelFromGoString(s string) (market8.DealLabel, error) {
+	if utf8.ValidString(s) {
+		return market8.NewLabelFromString(s)
+	} else {
+		return market8.NewLabelFromBytes([]byte(s))
+	}
+}
@@ -8,12 +8,22 @@ import (
 	"github.com/ipfs/go-cid"
 	cbg "github.com/whyrusleeping/cbor-gen"
 	"golang.org/x/xerrors"
+	{{if (ge .v 6)}}
+	rlepluslazy "github.com/filecoin-project/go-bitfield/rle"
+	"github.com/filecoin-project/go-bitfield"
+	{{end}}
+

 	"github.com/filecoin-project/lotus/chain/actors/adt"
 	"github.com/filecoin-project/lotus/chain/types"

+{{if (le .v 7)}}
 	market{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/builtin/market"
 	adt{{.v}} "github.com/filecoin-project/specs-actors{{.import}}actors/util/adt"
+{{else}}
+	market{{.v}} "github.com/filecoin-project/go-state-types/builtin{{.import}}market"
+	adt{{.v}} "github.com/filecoin-project/go-state-types/builtin/v8/util/adt"
+{{end}}
 )

 var _ State = (*state{{.v}})(nil)
@@ -190,7 +200,7 @@ func (s *dealStates{{.v}}) array() adt.Array {
 }

 func fromV{{.v}}DealState(v{{.v}} market{{.v}}.DealState) DealState {
-	return (DealState)(v{{.v}})
+        return (DealState)(v{{.v}})
 }

 type dealProposals{{.v}} struct {
@@ -206,14 +216,24 @@ func (s *dealProposals{{.v}}) Get(dealID abi.DealID) (*DealProposal, bool, error
 	if !found {
 		return nil, false, nil
 	}
-	proposal := fromV{{.v}}DealProposal(proposal{{.v}})
-	return &proposal, true, nil
+
+    proposal, err := fromV{{.v}}DealProposal(proposal{{.v}})
+    if err != nil {
+        return nil, true, xerrors.Errorf("decoding proposal: %w", err)
+    }
+
+    return &proposal, true, nil
 }

 func (s *dealProposals{{.v}}) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
 	var dp{{.v}} market{{.v}}.DealProposal
 	return s.Array.ForEach(&dp{{.v}}, func(idx int64) error {
-		return cb(abi.DealID(idx), fromV{{.v}}DealProposal(dp{{.v}}))
+        dp, err := fromV{{.v}}DealProposal(dp{{.v}})
+        if err != nil {
+            return xerrors.Errorf("decoding proposal: %w", err)
+        }
+
+        return cb(abi.DealID(idx), dp)
 	})
 }

@@ -222,18 +242,48 @@ func (s *dealProposals{{.v}}) decode(val *cbg.Deferred) (*DealProposal, error) {
 	if err := dp{{.v}}.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
 		return nil, err
 	}
-	dp := fromV{{.v}}DealProposal(dp{{.v}})
-	return &dp, nil
+
+    dp, err := fromV{{.v}}DealProposal(dp{{.v}})
+    if err != nil {
+        return nil, err
+    }
+
+    return &dp, nil
 }

 func (s *dealProposals{{.v}}) array() adt.Array {
 	return s.Array
 }

-func fromV{{.v}}DealProposal(v{{.v}} market{{.v}}.DealProposal) DealProposal {
-	return (DealProposal)(v{{.v}})
+func fromV{{.v}}DealProposal(v{{.v}} market{{.v}}.DealProposal) (DealProposal, error) {
+    {{if (le .v 7)}}
+        label, err := labelFromGoString(v{{.v}}.Label)
+        if err != nil {
+            return DealProposal{}, xerrors.Errorf("error setting deal label: %w", err)
+        }
+    {{else}}
+        label := v{{.v}}.Label
+    {{end}}
+
+    return DealProposal{
+        PieceCID: v{{.v}}.PieceCID,
+        PieceSize: v{{.v}}.PieceSize,
+        VerifiedDeal: v{{.v}}.VerifiedDeal,
+        Client: v{{.v}}.Client,
+        Provider: v{{.v}}.Provider,
+
+        Label: label,
+
+        StartEpoch: v{{.v}}.StartEpoch,
+        EndEpoch: v{{.v}}.EndEpoch,
+        StoragePricePerEpoch: v{{.v}}.StoragePricePerEpoch,
+
+        ProviderCollateral: v{{.v}}.ProviderCollateral,
+        ClientCollateral: v{{.v}}.ClientCollateral,
+    }, nil
 }

+
 func (s *state{{.v}}) GetState() interface{} {
 	return &s.State
 }
@@ -253,12 +303,29 @@ type publishStorageDealsReturn{{.v}} struct {
 	market{{.v}}.PublishStorageDealsReturn
 }

-func (r *publishStorageDealsReturn{{.v}}) IsDealValid(index uint64) (bool, error) {
+func (r *publishStorageDealsReturn{{.v}}) IsDealValid(index uint64) (bool, int, error) {
 	{{if (ge .v 6)}}
-	    return r.ValidDeals.IsSet(index)
+	set, err := r.ValidDeals.IsSet(index)
+	if err != nil || !set {
+		return false, -1, err
+	}
+	maskBf, err := bitfield.NewFromIter(&rlepluslazy.RunSliceIterator{
+		Runs: []rlepluslazy.Run{rlepluslazy.Run{Val: true, Len: index}}})
+	if err != nil {
+		return false, -1, err
+	}
+	before, err := bitfield.IntersectBitField(maskBf, r.ValidDeals)
+	if err != nil {
+		return false, -1, err
+	}
+	outIdx, err := before.Count()
+	if err != nil {
+		return false, -1, err
+	}
+	return set, int(outIdx), nil
 	{{else}}
 	    // PublishStorageDeals only succeeded if all deals were valid in this version of actors
-	    return true, nil
+	    return true, int(index), nil
 	{{end}}
 }

@@ -199,14 +199,24 @@ func (s *dealProposals0) Get(dealID abi.DealID) (*DealProposal, bool, error) {
 	if !found {
 		return nil, false, nil
 	}
-	proposal := fromV0DealProposal(proposal0)
+
+	proposal, err := fromV0DealProposal(proposal0)
+	if err != nil {
+		return nil, true, xerrors.Errorf("decoding proposal: %w", err)
+	}
+
 	return &proposal, true, nil
 }

 func (s *dealProposals0) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
 	var dp0 market0.DealProposal
 	return s.Array.ForEach(&dp0, func(idx int64) error {
-		return cb(abi.DealID(idx), fromV0DealProposal(dp0))
+		dp, err := fromV0DealProposal(dp0)
+		if err != nil {
+			return xerrors.Errorf("decoding proposal: %w", err)
+		}
+
+		return cb(abi.DealID(idx), dp)
 	})
 }

@@ -215,7 +225,12 @@ func (s *dealProposals0) decode(val *cbg.Deferred) (*DealProposal, error) {
 	if err := dp0.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
 		return nil, err
 	}
-	dp := fromV0DealProposal(dp0)
+
+	dp, err := fromV0DealProposal(dp0)
+	if err != nil {
+		return nil, err
+	}
+
 	return &dp, nil
 }

@@ -223,8 +238,29 @@ func (s *dealProposals0) array() adt.Array {
 	return s.Array
 }

-func fromV0DealProposal(v0 market0.DealProposal) DealProposal {
-	return (DealProposal)(v0)
+func fromV0DealProposal(v0 market0.DealProposal) (DealProposal, error) {
+
+	label, err := labelFromGoString(v0.Label)
+	if err != nil {
+		return DealProposal{}, xerrors.Errorf("error setting deal label: %w", err)
+	}
+
+	return DealProposal{
+		PieceCID:     v0.PieceCID,
+		PieceSize:    v0.PieceSize,
+		VerifiedDeal: v0.VerifiedDeal,
+		Client:       v0.Client,
+		Provider:     v0.Provider,
+
+		Label: label,
+
+		StartEpoch:           v0.StartEpoch,
+		EndEpoch:             v0.EndEpoch,
+		StoragePricePerEpoch: v0.StoragePricePerEpoch,
+
+		ProviderCollateral: v0.ProviderCollateral,
+		ClientCollateral:   v0.ClientCollateral,
+	}, nil
 }

 func (s *state0) GetState() interface{} {
@@ -246,10 +282,10 @@ type publishStorageDealsReturn0 struct {
 	market0.PublishStorageDealsReturn
 }

-func (r *publishStorageDealsReturn0) IsDealValid(index uint64) (bool, error) {
+func (r *publishStorageDealsReturn0) IsDealValid(index uint64) (bool, int, error) {

 	// PublishStorageDeals only succeeded if all deals were valid in this version of actors
-	return true, nil
+	return true, int(index), nil

 }

@@ -199,14 +199,24 @@ func (s *dealProposals2) Get(dealID abi.DealID) (*DealProposal, bool, error) {
 	if !found {
 		return nil, false, nil
 	}
-	proposal := fromV2DealProposal(proposal2)
+
+	proposal, err := fromV2DealProposal(proposal2)
+	if err != nil {
+		return nil, true, xerrors.Errorf("decoding proposal: %w", err)
+	}
+
 	return &proposal, true, nil
 }

 func (s *dealProposals2) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
 	var dp2 market2.DealProposal
 	return s.Array.ForEach(&dp2, func(idx int64) error {
-		return cb(abi.DealID(idx), fromV2DealProposal(dp2))
+		dp, err := fromV2DealProposal(dp2)
+		if err != nil {
+			return xerrors.Errorf("decoding proposal: %w", err)
+		}
+
+		return cb(abi.DealID(idx), dp)
 	})
 }

@@ -215,7 +225,12 @@ func (s *dealProposals2) decode(val *cbg.Deferred) (*DealProposal, error) {
 	if err := dp2.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
 		return nil, err
 	}
-	dp := fromV2DealProposal(dp2)
+
+	dp, err := fromV2DealProposal(dp2)
+	if err != nil {
+		return nil, err
+	}
+
 	return &dp, nil
 }

@@ -223,8 +238,29 @@ func (s *dealProposals2) array() adt.Array {
 	return s.Array
 }

-func fromV2DealProposal(v2 market2.DealProposal) DealProposal {
-	return (DealProposal)(v2)
+func fromV2DealProposal(v2 market2.DealProposal) (DealProposal, error) {
+
+	label, err := labelFromGoString(v2.Label)
+	if err != nil {
+		return DealProposal{}, xerrors.Errorf("error setting deal label: %w", err)
+	}
+
+	return DealProposal{
+		PieceCID:     v2.PieceCID,
+		PieceSize:    v2.PieceSize,
+		VerifiedDeal: v2.VerifiedDeal,
+		Client:       v2.Client,
+		Provider:     v2.Provider,
+
+		Label: label,
+
+		StartEpoch:           v2.StartEpoch,
+		EndEpoch:             v2.EndEpoch,
+		StoragePricePerEpoch: v2.StoragePricePerEpoch,
+
+		ProviderCollateral: v2.ProviderCollateral,
+		ClientCollateral:   v2.ClientCollateral,
+	}, nil
 }

 func (s *state2) GetState() interface{} {
@@ -246,10 +282,10 @@ type publishStorageDealsReturn2 struct {
 	market2.PublishStorageDealsReturn
 }

-func (r *publishStorageDealsReturn2) IsDealValid(index uint64) (bool, error) {
+func (r *publishStorageDealsReturn2) IsDealValid(index uint64) (bool, int, error) {

 	// PublishStorageDeals only succeeded if all deals were valid in this version of actors
-	return true, nil
+	return true, int(index), nil

 }

@@ -194,14 +194,24 @@ func (s *dealProposals3) Get(dealID abi.DealID) (*DealProposal, bool, error) {
 	if !found {
 		return nil, false, nil
 	}
-	proposal := fromV3DealProposal(proposal3)
+
+	proposal, err := fromV3DealProposal(proposal3)
+	if err != nil {
+		return nil, true, xerrors.Errorf("decoding proposal: %w", err)
+	}
+
 	return &proposal, true, nil
 }

 func (s *dealProposals3) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
 	var dp3 market3.DealProposal
 	return s.Array.ForEach(&dp3, func(idx int64) error {
-		return cb(abi.DealID(idx), fromV3DealProposal(dp3))
+		dp, err := fromV3DealProposal(dp3)
+		if err != nil {
+			return xerrors.Errorf("decoding proposal: %w", err)
+		}
+
+		return cb(abi.DealID(idx), dp)
 	})
 }

@@ -210,7 +220,12 @@ func (s *dealProposals3) decode(val *cbg.Deferred) (*DealProposal, error) {
 	if err := dp3.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
 		return nil, err
 	}
-	dp := fromV3DealProposal(dp3)
+
+	dp, err := fromV3DealProposal(dp3)
+	if err != nil {
+		return nil, err
+	}
+
 	return &dp, nil
 }

@@ -218,8 +233,29 @@ func (s *dealProposals3) array() adt.Array {
 	return s.Array
 }

-func fromV3DealProposal(v3 market3.DealProposal) DealProposal {
-	return (DealProposal)(v3)
+func fromV3DealProposal(v3 market3.DealProposal) (DealProposal, error) {
+
+	label, err := labelFromGoString(v3.Label)
+	if err != nil {
+		return DealProposal{}, xerrors.Errorf("error setting deal label: %w", err)
+	}
+
+	return DealProposal{
+		PieceCID:     v3.PieceCID,
+		PieceSize:    v3.PieceSize,
+		VerifiedDeal: v3.VerifiedDeal,
+		Client:       v3.Client,
+		Provider:     v3.Provider,
+
+		Label: label,
+
+		StartEpoch:           v3.StartEpoch,
+		EndEpoch:             v3.EndEpoch,
+		StoragePricePerEpoch: v3.StoragePricePerEpoch,
+
+		ProviderCollateral: v3.ProviderCollateral,
+		ClientCollateral:   v3.ClientCollateral,
+	}, nil
 }

 func (s *state3) GetState() interface{} {
@@ -241,10 +277,10 @@ type publishStorageDealsReturn3 struct {
 	market3.PublishStorageDealsReturn
 }

-func (r *publishStorageDealsReturn3) IsDealValid(index uint64) (bool, error) {
+func (r *publishStorageDealsReturn3) IsDealValid(index uint64) (bool, int, error) {

 	// PublishStorageDeals only succeeded if all deals were valid in this version of actors
-	return true, nil
+	return true, int(index), nil

 }

@@ -194,14 +194,24 @@ func (s *dealProposals4) Get(dealID abi.DealID) (*DealProposal, bool, error) {
 	if !found {
 		return nil, false, nil
 	}
-	proposal := fromV4DealProposal(proposal4)
+
+	proposal, err := fromV4DealProposal(proposal4)
+	if err != nil {
+		return nil, true, xerrors.Errorf("decoding proposal: %w", err)
+	}
+
 	return &proposal, true, nil
 }

 func (s *dealProposals4) ForEach(cb func(dealID abi.DealID, dp DealProposal) error) error {
 	var dp4 market4.DealProposal
 	return s.Array.ForEach(&dp4, func(idx int64) error {
-		return cb(abi.DealID(idx), fromV4DealProposal(dp4))
+		dp, err := fromV4DealProposal(dp4)
+		if err != nil {
+			return xerrors.Errorf("decoding proposal: %w", err)
+		}
+
+		return cb(abi.DealID(idx), dp)
 	})
 }

@@ -210,7 +220,12 @@ func (s *dealProposals4) decode(val *cbg.Deferred) (*DealProposal, error) {
 	if err := dp4.UnmarshalCBOR(bytes.NewReader(val.Raw)); err != nil {
 		return nil, err
 	}
-	dp := fromV4DealProposal(dp4)
+
+	dp, err := fromV4DealProposal(dp4)
+	if err != nil {
+		return nil, err
+	}
+
 	return &dp, nil
 }

@@ -218,8 +233,29 @@ func (s *dealProposals4) array() adt.Array {
 	return s.Array
 }

-func fromV4DealProposal(v4 market4.DealProposal) DealProposal {
-	return (DealProposal)(v4)
+func fromV4DealProposal(v4 market4.DealProposal) (DealProposal, error) {
+
+	label, err := labelFromGoString(v4.Label)
+	if err != nil {
+		return DealProposal{}, xerrors.Errorf("error setting deal label: %w", err)
+	}
+
+	return DealProposal{
+		PieceCID:     v4.PieceCID,
+		PieceSize:    v4.PieceSize,
+		VerifiedDeal: v4.VerifiedDeal,
+		Client:       v4.Client,
+		Provider:     v4.Provider,
+
+		Label: label,
+
+		StartEpoch:           v4.StartEpoch,
+		EndEpoch:             v4.EndEpoch,
+		StoragePricePerEpoch: v4.StoragePricePerEpoch,
+
+		ProviderCollateral: v4.ProviderCollateral,
+		ClientCollateral:   v4.ClientCollateral,
+	}, nil
 }

 func (s *state4) GetState() interface{} {
@@ -241,10 +277,10 @@ type publishStorageDealsReturn4 struct {
 	market4.PublishStorageDealsReturn
 }

-func (r *publishStorageDealsReturn4) IsDealValid(index uint64) (bool, error) {
+func (r *publishStorageDealsReturn4) IsDealValid(index uint64) (bool, int, error) {

 	// PublishStorageDeals only succeeded if all deals were valid in this version of actors
-	return true, nil
+	return true, int(index), nil

 }

--- a/Show More
+++ b/Show More