Merge pull request #124 from cerc-io/ian/v4_dev

bump leveldb-ethdb-rpc version
2023-03-31 10:25:24 -05:00 · 2023-03-31 10:17:34 -05:00 · 2023-03-31 09:53:11 -05:00 · 2023-03-31 09:04:54 -05:00 · 2023-03-31 09:02:54 -05:00 · 2023-03-20 07:53:09 -05:00
33 changed files with 1525 additions and 1397 deletions
--- a/.github/workflows/issues-notion-sync.yml
+++ b/.github/workflows/issues-notion-sync.yml
@ -1,29 +0,0 @@
-name: Notion Sync
-
-on:
-  workflow_dispatch:
-  issues:
-    types:
-      [
-        opened,
-        edited,
-        labeled,
-        unlabeled,
-        assigned,
-        unassigned,
-        milestoned,
-        demilestoned,
-        reopened,
-        closed,
-      ]
-
-jobs:
-  notion_job:
-    runs-on: ubuntu-latest
-    name: Add GitHub Issues to Notion
-    steps:
-      - name: Add GitHub Issues to Notion
-        uses: vulcanize/notion-github-action@v1.2.4-issueid
-        with:
-          notion-token: ${{ secrets.NOTION_TOKEN }}
-          notion-db: ${{ secrets.NOTION_DATABASE }}
--- a/.github/workflows/manual_publish.yml
+++ b/.github/workflows/manual_publish.yml
@ -0,0 +1,35 @@
+name: MANUAL Override Publish from release SHA to TAG 
+on:
+  workflow_dispatch:
+    inputs:
+      giteaPublishTag:
+        description: 'Release TAG to publish TO on gitea; e.g. v4.1.5-alpha'
+        required: true
+      cercContainerTag:
+        description: 'Container (truncated!!! SHA) to release-tag FROM'
+        required: true
+
+# A workflow run is made up of one or more jobs that can run sequentially or in parallel
+jobs:
+  # This workflow contains a single job called "build"
+  build:
+    name: Pull SHA and add release-tag
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get the version
+        id: vars
+        run: |
+          echo ::set-output name=sha::$(echo ${cercContainerTag:0:7})
+      - name: Pull docker image by SHA
+        run: docker pull git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{github.event.inputs.cercContainerTag}}
+      - name: Tag docker image TAG
+        run: docker tag git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{github.event.inputs.cercContainerTag}} git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{github.event.inputs.giteaPublishTag}}
+      - name: Tag docker image TAG
+        run: docker tag git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{github.event.inputs.cercContainerTag}} git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:latest
+      - name: Docker Login
+        run: echo ${{ secrets.GITEA_TOKEN }} | docker login https://git.vdb.to -u cerccicd --password-stdin
+      - name: Docker Push Release Tag
+        run: docker push git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{github.event.inputs.giteaPublishTag}}
+      - name: Docker Push LATEST Tag
+        run: docker push git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:latest
--- a/.github/workflows/on-pr.yaml
+++ b/.github/workflows/on-pr.yaml
@ -1,7 +0,0 @@
-name: Docker Build
-
-on: [pull_request]
-
-jobs:
-  run-tests:
-    uses: ./.github/workflows/tests.yml
--- a/.github/workflows/on-publish-pr.yml
+++ b/.github/workflows/on-publish-pr.yml
@ -0,0 +1,73 @@
+name: Publish Docker image
+on:
+  release:
+    types: [published]
+  pull_request:
+jobs:
+  pre_job:
+    # continue-on-error: true # Uncomment once integration is finished
+    runs-on: ubuntu-latest
+    # Map a step output to a job output
+    outputs:
+      should_skip: ${{ steps.skip_check.outputs.should_skip }}
+    steps:
+      - id: skip_check
+        uses: fkirc/skip-duplicate-actions@v4
+        with:
+          # All of these options are optional, so you can remove them if you are happy with the defaults
+          concurrent_skipping: "never"
+          skip_after_successful_duplicate: "true"
+          do_not_skip: '["workflow_dispatch", "schedule"]'
+  run-tests:
+    if: ${{ needs.pre_job.outputs.should_skip != 'true' }}
+    needs: pre_job
+    uses: ./.github/workflows/tests.yml
+  build:
+    name: Run docker build
+    runs-on: ubuntu-latest
+    if: |
+      always() &&
+      (needs.run-tests.result == 'success' || needs.run-tests.result == 'skipped') &&
+      github.event_name == 'release'
+    needs: run-tests
+    steps:
+      - uses: actions/checkout@v2
+      - name: Get the version
+        id: vars
+        run: |
+          echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
+          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
+      - name: Run docker build
+        run: make docker-build
+      - name: Tag docker image
+        run: docker tag cerc-io/eth-statediff-service git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+      - name: Tag docker image TAG
+        run: docker tag git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}} git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.tag}}
+      - name: Docker Login
+        run: echo ${{ secrets.GITEA_TOKEN }} | docker login https://git.vdb.to -u cerccicd --password-stdin
+      - name: Docker Push
+        run: docker push git.vdb.to/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+#  push_to_registries:
+#    name: Push Docker image to Docker Hub
+#    runs-on: ubuntu-latest
+#    if: |
+#      always() &&
+#      (needs.build.result == 'success') &&
+#      github.event_name == 'release'
+#    needs: build
+#    steps:
+#      - name: Get the version
+#        id: vars
+#        run: |
+#          echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
+#          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
+#      - name: Docker Login to Github Registry
+#        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
+#      - name: Docker Pull
+#        run: docker pull docker.pkg.github.com/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
+#      - name: Docker Login to Docker Registry
+#        run: echo ${{ secrets.VULCANIZEJENKINS_PAT }} | docker login -u vulcanizejenkins --password-stdin
+#      - name: Tag docker image
+#        run: docker tag docker.pkg.github.com/cerc-io/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}} cerc-io/eth-statediff-service:${{steps.vars.outputs.tag}}
+#      - name: Docker Push to Docker Hub
+#        run: docker push cerc-io/eth-statediff-service:${{steps.vars.outputs.tag}}
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@ -1,44 +0,0 @@
-name: Publish Docker image
-on:
-  release:
-    types: [published]
-jobs:
-  run-tests:
-    uses: ./.github/workflows/tests.yml
-  build:
-    name: Run docker build
-    runs-on: ubuntu-latest
-    needs: run-tests
-    steps:
-      - uses: actions/checkout@v2
-      - name: Get the version
-        id: vars
-        run: echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
-      - name: Run docker build
-        run: make docker-build
-      - name: Tag docker image
-        run: docker tag vulcanize/eth-statediff-service docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
-      - name: Docker Login
-        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
-      - name: Docker Push
-        run: docker push docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
-  push_to_registries:
-    name: Push Docker image to Docker Hub
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Get the version
-        id: vars
-        run: |
-          echo ::set-output name=sha::$(echo ${GITHUB_SHA:0:7})
-          echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
-      - name: Docker Login to Github Registry
-        run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
-      - name: Docker Pull
-        run: docker pull docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}}
-      - name: Docker Login to Docker Registry
-        run: echo ${{ secrets.VULCANIZEJENKINS_PAT }} | docker login -u vulcanizejenkins --password-stdin
-      - name: Tag docker image
-        run: docker tag docker.pkg.github.com/vulcanize/eth-statediff-service/eth-statediff-service:${{steps.vars.outputs.sha}} vulcanize/eth-statediff-service:${{steps.vars.outputs.tag}}
-      - name: Docker Push to Docker Hub
-        run: docker push vulcanize/eth-statediff-service:${{steps.vars.outputs.tag}}
--- a/.gitignore
+++ b/.gitignore
@ -1,2 +1,3 @@
 .idea/
 eth-statediff-service
+.vscode
--- a/16
+++ b/16
@ -1,14 +1,14 @@
-FROM golang:1.18-alpine as builder
+FROM golang:1.19-alpine as builder

 RUN apk --update --no-cache add make git g++ linux-headers
 # DEBUG
 RUN apk add busybox-extras

 # Get and build ipfs-blockchain-watcher
-ADD . /go/src/github.com/vulcanize/eth-statediff-service
-#RUN git clone https://github.com/vulcanize/eth-statediff-service.git /go/src/github.com/vulcanize/eth-statediff-service
+ADD . /go/src/github.com/cerc-io/eth-statediff-service
+#RUN git clone https://github.com/cerc-io/eth-statediff-service.git /go/src/github.com/vulcanize/eth-statediff-service

-WORKDIR /go/src/github.com/vulcanize/eth-statediff-service
+WORKDIR /go/src/github.com/cerc-io/eth-statediff-service
 RUN GO111MODULE=on GCO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-extldflags "-static"' -o eth-statediff-service .

 # app container
@ -27,12 +27,12 @@ USER $USER

 # chown first so dir is writable
 # note: using $USER is merged, but not in the stable release yet
-COPY --chown=5000:5000 --from=builder /go/src/github.com/vulcanize/eth-statediff-service/$CONFIG_FILE config.toml
-COPY --chown=5000:5000 --from=builder /go/src/github.com/vulcanize/eth-statediff-service/startup_script.sh .
-COPY --chown=5000:5000 --from=builder /go/src/github.com/vulcanize/eth-statediff-service/environments environments
+COPY --chown=5000:5000 --from=builder /go/src/github.com/cerc-io/eth-statediff-service/$CONFIG_FILE config.toml
+COPY --chown=5000:5000 --from=builder /go/src/github.com/cerc-io/eth-statediff-service/startup_script.sh .
+COPY --chown=5000:5000 --from=builder /go/src/github.com/cerc-io/eth-statediff-service/environments environments

 # keep binaries immutable
-COPY --from=builder /go/src/github.com/vulcanize/eth-statediff-service/eth-statediff-service eth-statediff-service
+COPY --from=builder /go/src/github.com/cerc-io/eth-statediff-service/eth-statediff-service eth-statediff-service

 EXPOSE $EXPOSE_PORT

--- a/4
+++ b/4
@ -1,10 +1,10 @@
 ## Build docker image
 .PHONY: docker-build
 docker-build:
-	docker build -t vulcanize/eth-statediff-service .
+	docker build -t cerc-io/eth-statediff-service .

 .PHONY: test
-test: | $(GOOSE)
+test:
 	go test -p 1 ./pkg/... -v

 build:
--- a/README.md
+++ b/README.md
@ -8,7 +8,7 @@ Purpose:

 Stand up a statediffing service directly on top of a go-ethereum LevelDB instance.
 This service can serve historical state data over the same rpc interface as
-[statediffing geth](https://github.com/vulcanize/go-ethereum/releases/tag/v1.9.11-statediff-0.0.5) without needing to run a full node
+[statediffing geth](https://github.com/cerc-io/go-ethereum) without needing to run a full node.

 ## Setup

@ -18,6 +18,116 @@ Build the binary:
 make build
 ```

+## Configuration
+
+An example config file:
+
+```toml
+[leveldb]
+    # LevelDB access mode <local | remote>
+    mode = "local"  # LVLDB_MODE
+
+    # in local mode
+    # LevelDB paths
+    path    = "/Users/user/Library/Ethereum/geth/chaindata"         # LVLDB_PATH
+    ancient = "/Users/user/Library/Ethereum/geth/chaindata/ancient" # LVLDB_ANCIENT
+
+    # in remote mode
+    # URL for leveldb-ethdb-rpc endpoint
+    url = "http://127.0.0.1:8082/"  # LVLDB_URL
+
+[server]
+    ipcPath  = ".ipc"           # SERVICE_IPC_PATH
+    httpPath = "127.0.0.1:8545" # SERVICE_HTTP_PATH
+
+[statediff]
+    prerun          = true  # STATEDIFF_PRERUN
+    serviceWorkers  = 1     # STATEDIFF_SERVICE_WORKERS
+    workerQueueSize = 1024  # STATEDIFF_WORKER_QUEUE_SIZE
+    trieWorkers     = 4     # STATEDIFF_TRIE_WORKERS
+
+[prerun]
+    only = false     # PRERUN_ONLY
+    parallel = true  # PRERUN_PARALLEL
+
+    # to perform prerun in a specific range (optional)
+    start = 0   # PRERUN_RANGE_START
+    stop  = 100 # PRERUN_RANGE_STOP
+
+    # to perform prerun over multiple ranges (optional)
+    ranges = [
+        [101, 1000]
+    ]
+
+    # statediffing params for prerun
+    [prerun.params]
+        intermediateStateNodes   = true # PRERUN_INTERMEDIATE_STATE_NODES
+        intermediateStorageNodes = true # PRERUN_INTERMEDIATE_STORAGE_NODES
+        includeBlock             = true # PRERUN_INCLUDE_BLOCK
+        includeReceipts          = true # PRERUN_INCLUDE_RECEIPTS
+        includeTD                = true # PRERUN_INCLUDE_TD
+        includeCode              = true # PRERUN_INCLUDE_CODE
+        watchedAddresses         = []
+
+[log]
+    file  = ""      # LOG_FILE_PATH
+    level = "info"  # LOG_LEVEL
+
+[database]
+    # output type <postgres | file | dump>
+    type = "postgres"
+
+    # with postgres type
+    # db credentials
+    name     = "vulcanize_test" # DATABASE_NAME
+    hostname = "localhost"      # DATABASE_HOSTNAME
+    port     = 5432             # DATABASE_PORT
+    user     = "vulcanize"      # DATABASE_USER
+    password = "..."            # DATABASE_PASSWORD
+    driver   = "sqlx"           # DATABASE_DRIVER_TYPE <sqlx | pgx>
+
+    # with file type
+    # file mode <sql | csv>
+    fileMode = "csv"    # DATABASE_FILE_MODE
+
+    # with SQL file mode
+    filePath = ""   # DATABASE_FILE_PATH
+
+    # with CSV file mode
+    fileCsvDir = "output_dir" # DATABASE_FILE_CSV_DIR
+
+    # with dump type
+    # <stdout | stderr | discard>
+    dumpDestination = ""    # DATABASE_DUMP_DST
+
+[cache]
+    database = 1024 # DB_CACHE_SIZE_MB
+    trie     = 1024 # TRIE_CACHE_SIZE_MB
+
+[prom]
+    # prometheus metrics
+    metrics  = true         # PROM_METRICS
+    http     = true         # PROM_HTTP
+    httpAddr = "localhost"  # PROM_HTTP_ADDR
+    httpPort = "8889"       # PROM_HTTP_PORT
+    dbStats = true          # PROM_DB_STATS
+
+[ethereum]
+    # node info
+    nodeID       = ""                       # ETH_NODE_ID
+    clientName   = "eth-statediff-service"  # ETH_CLIENT_NAME
+    networkID    = 1                        # ETH_NETWORK_ID
+    chainID      = 1                        # ETH_CHAIN_ID
+    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3" # ETH_GENESIS_BLOCK
+
+    # path to custom chain config file (optional)
+    # keep chainID same as that in chain config file
+    chainConfig  = "./chain.json"           # ETH_CHAIN_CONFIG
+
+[debug]
+    pprof = false                           # DEBUG_PPROF
+```
+
 ### Local Setup

 * Create a chain config file `chain.json` according to chain config in genesis json file used by local geth.
@ -42,52 +152,19 @@ make build
  }
  ```

-* Change the following in [config file](./environments/config.toml)
-
-    ```toml
-    [leveldb]
-        mode = "local"
-        # Path to geth LevelDB data
-        path = "/path-to-local-geth-data/chaindata"
-        ancient = "/path-to-local-geth-data/chaindata/ancient"
-
-    [ethereum]
-        chainConfig = "./chain.json" # Path to custom chain config file
-        chainID = 41337 # Same chain ID as in chain.json
-
-    [database]
-        # Update database config
-        name     = "vulcanize_testing"
-        hostname = "localhost"
-        port     = 5432
-        user     = "postgres"
-        password = "postgres"
-        type = "postgres"
-    ```
-
-* To write statediff for a range of block make changes in [config file](./environments/config.toml)
-    ```toml
-    [prerun]
-        only = false
-        ranges = [
-            [8, 15] # Block number range for which to write statediff.
-        ]
-    ```
-
-* To use remote LevelDB RPC endpoint change the following in [config file](./environments/config.toml)
-    ```toml
-    [leveldb]
-        mode = "remote"
-        url = "http://127.0.0.1:8082/" # Remote LevelDB RPC url
-    ```
+  Provide the path to the above file in the config.

 ## Usage

+* Create / update the config file (refer to example config above).
+
 ### `serve`

-To serve state diffs over RPC:
+* To serve the statediff RPC API:

-`eth-statediff-service serve --config=<config path>`
+    ```bash
+    ./eth-statediff-service serve --config=<config path>
+    ```

    Example:

@ -95,89 +172,137 @@ Example:
    ./eth-statediff-service serve --config environments/config.toml
    ```

-Available RPC methods are:
+* Available RPC methods:
    * `statediff_stateTrieAt()`
    * `statediff_streamCodeAndCodeHash()`
    * `statediff_stateDiffAt()`
    * `statediff_writeStateDiffAt()`
    * `statediff_writeStateDiffsInRange()`

-e.g. `curl -X POST -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"statediff_writeStateDiffsInRange","params":['"$BEGIN"', '"$END"', {"intermediateStateNodes":true,"intermediateStorageNodes":true,"includeBlock":true,"includeReceipts":true,"includeTD":true,"includeCode":true}],"id":1}' "$HOST":"$PORT"`
+    Example:

-The process can be configured locally with sets of ranges to process as a "prerun" to processing directed by the server endpoints.
-This is done by turning "prerun" on in the config (`statediff.prerun = true`) and defining ranged and params in the
-`prerun` section of the config as shown below.
-
-## Configuration
-
-An example config file:
-
-```toml
-[leveldb]
-    mode = "local"
-    # path and ancient LevelDB paths required in local mode
-    path = "/Users/user/Library/Ethereum/geth/chaindata"
-    ancient = "/Users/user/Library/Ethereum/geth/chaindata/ancient"
-    # url for leveldb-ethdb-rpc endpoint required in remote mode
-    url = "http://127.0.0.1:8082/"
-
-[server]
-    ipcPath = ".ipc"
-    httpPath = "127.0.0.1:8545"
-
-[statediff]
-    prerun = true
-    serviceWorkers = 1
-    workerQueueSize = 1024
-    trieWorkers = 4
-
-[prerun]
-    only = false
-    ranges = [
-        [0, 1000]
-    ]
-    [prerun.params]
-        intermediateStateNodes = true
-        intermediateStorageNodes = true
-        includeBlock = true
-        includeReceipts = true
-        includeTD = true
-        includeCode = true
-        watchedAddresses = []
-
-[log]
-    file = ""
-    level = "info"
-
-[eth]
-    chainID = 1
-
-[database]
-    name     = "vulcanize_test"
-    hostname = "localhost"
-    port     = 5432
-    user     = "vulcanize"
-    password = "..."
-    type = "postgres"
-    driver = "sqlx"
-    dumpDestination = ""
-    filePath = ""
-
-[cache]
-    database = 1024
-    trie = 1024
-
-[prom]
-    dbStats = false
-    metrics = true
-    http = true
-    httpAddr = "localhost"
-    httpPort = "8889"
-
-[ethereum]
-    nodeID = ""
-    clientName = "eth-statediff-service"
-    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"
-    networkID = 1
-    chainID = 1
+    ```bash
+    curl -X POST -H 'Content-Type: application/json' --data '{"jsonrpc":"2.0","method":"statediff_writeStateDiffsInRange","params":['"$BEGIN"', '"$END"', {"intermediateStateNodes":true,"intermediateStorageNodes":true,"includeBlock":true,"includeReceipts":true,"includeTD":true,"includeCode":true}],"id":1}' "$HOST":"$PORT"
    ```
+
+* Prerun:
+    * The process can be configured locally with sets of ranges to process as a "prerun" to processing directed by the server endpoints.
+    * This is done by turning "prerun" on in the config (`statediff.prerun = true`) and defining ranges and params in the
+`prerun` section of the config.
+    * Set the range using `prerun.start` and `prerun.stop`. Use `prerun.ranges` if prerun on more than one range is required.
+
+* NOTE: Currently, `params.includeTD` must be set to / passed as `true`.
+
+## Monitoring
+
+* Enable metrics using config parameters `prom.metrics` and `prom.http`.
+* `eth-statediff-service` exposes following prometheus metrics at `/metrics` endpoint:
+    * `ranges_queued`: Number of range requests currently queued.
+    * `loaded_height`: The last block that was loaded for processing.
+    * `processed_height`: The last block that was processed.
+    * `stats.t_block_load`: Block loading time.
+    * `stats.t_block_processing`: Block (header, uncles, txs, rcts, tx trie, rct trie) processing time.
+    * `stats.t_state_processing`: State (state trie, storage tries, and code) processing time.
+    * `stats.t_postgres_tx_commit`: Postgres tx commit time.
+    * `http.count`: HTTP request count.
+    * `http.duration`: HTTP request duration.
+    * `ipc.count`: Unix socket connection count.
+
+## Tests
+
+* Run unit tests:
+
+    ```bash
+    make test
+    ```
+
+## Import output data in file mode into a database
+
+* When `eth-statediff-service` is run in file mode (`database.type`) the output is in form of a SQL file or multiple CSV files.
+
+### SQL
+
+* Assuming the output files are located in host's `./output_dir` directory.
+
+* Create a directory to store post-processed output:
+
+    ```bash
+    mkdir -p output_dir/processed_output
+    ```
+
+* (Optional) Get row counts in the output:
+
+    ```bash
+    wc -l output_dir/statediff.sql > output_stats.txt
+    ```
+
+* De-duplicate data:
+
+    ```bash
+    sort -u output_dir/statediff.sql -o output_dir/processed_output/deduped-statediff.sql
+    ```
+
+* Copy over the post-processed output files to the DB server (say in `/output_dir`).
+
+* Run the following to import data:
+
+    ```bash
+    psql -U <DATABASE_USER> -h <DATABASE_HOSTNAME> -p <DATABASE_PORT> <DATABASE_NAME> --set ON_ERROR_STOP=on -f /output_dir/processed_output/deduped-statediff.sql
+    ```
+
+### CSV
+
+* Create an env file with the required variables. Refer [.sample.env](./scripts/.sample.env).
+
+* (Optional) Get row counts in the output:
+
+    ```bash
+    ./scripts/count-lines.sh <ENV_FILE_PATH>
+    ```
+
+* De-duplicate data:
+
+    ```bash
+    ./scripts/dedup.sh <ENV_FILE_PATH>
+    ```
+
+* Perform column checks:
+
+    ```bash
+    ./scripts/check-columns.sh <ENV_FILE_PATH>
+    ```
+
+    Check the output logs for any rows detected with unexpected number of columns.
+
+    Example:
+
+    ```bash
+    # log
+    eth.header_cids
+    Start: Wednesday 21 September 2022 06:00:38 PM IST
+    Time taken: 00:00:05
+    End: Wednesday 21 September 2022 06:00:43 PM IST
+    Total bad rows: 1 ./check-columns/eth.header_cids.txt
+
+    # bad row output
+    # line number, num. of columns, data
+    23 17 22,xxxxxx,0x07f5ea5c94aa8dea60b28f6b6315d92f2b6d78ca4b74ea409adeb191b5a114f2,0x5918487321aa57dd0c50977856c6231e7c4ee79e95b694c7c8830227d77a1ecc,bagiacgzaa726uxeuvkg6uyfsr5vwgfozf4vw26gkjn2ouqe232yzdnnbctza,45,geth,0,0xad8fa8df61b98dbda7acd6ca76d5ce4cbba663d5f608cc940957adcdb94cee8d,0xc621412320a20b4aaff5363bdf063b9d13e394ef82e55689ab703aae5db08e26,0x71ec1c7d81269ce115be81c81f13e1cc2601c292a7f20440a77257ecfdc69940,0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347,\x2000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000,1658408419,/blocks/DMQAP5PKLSKKVDPKMCZI623DCXMS6K3NPDFEW5HKICNN5MMRWWQRJ4Q,1,0x0000000000000000000000000000000000000000
+    ```
+
+* Import data using `timescaledb-parallel-copy`:  
+  (requires [`timescaledb-parallel-copy`](https://github.com/timescale/timescaledb-parallel-copy) installation; readily comes with TimescaleDB docker image)
+
+    ```bash
+    ./scripts/timescaledb-import.sh <ENV_FILE_PATH>
+    ```
+
+* NOTE: `COPY` command on CSVs inserts empty strings as `NULL` in the DB. Passing `FORCE_NOT_NULL <COLUMN_NAME>` forces it to insert empty strings instead. This is required to maintain compatibility of the imported statediff data with the data generated in `postgres` mode. Reference: https://www.postgresql.org/docs/14/sql-copy.html
+
+### Stats
+
+The binary includes a `stats` command which reports stats for the offline or remote levelDB.
+
+At this time, the only stat supported is to return the latest/highest block height and hash found the levelDB, this is
+useful for determining what the upper limit is for a standalone statediffing process on a given levelDB.
+
+`./eth-statediff-service stats --config={path to toml config file}`
--- a/cmd/env.go
+++ b/cmd/env.go
@ -50,6 +50,7 @@ const (
 	PROM_DB_STATS  = "PROM_DB_STATS"

 	PRERUN_ONLY                       = "PRERUN_ONLY"
+	PRERUN_PARALLEL                   = "PRERUN_PARALLEL"
 	PRERUN_RANGE_START                = "PRERUN_RANGE_START"
 	PRERUN_RANGE_STOP                 = "PRERUN_RANGE_STOP"
 	PRERUN_INTERMEDIATE_STATE_NODES   = "PRERUN_INTERMEDIATE_STATE_NODES"
@ -72,6 +73,8 @@ const (
 	DATABASE_DRIVER_TYPE  = "DATABASE_DRIVER_TYPE"
 	DATABASE_DUMP_DST     = "DATABASE_DUMP_DST"
 	DATABASE_FILE_PATH    = "DATABASE_FILE_PATH"
+	DATABASE_FILE_MODE    = "DATABASE_FILE_MODE"
+	DATABASE_FILE_CSV_DIR = "DATABASE_FILE_CSV_DIR"

 	DATABASE_MAX_IDLE_CONNECTIONS = "DATABASE_MAX_IDLE_CONNECTIONS"
 	DATABASE_MAX_OPEN_CONNECTIONS = "DATABASE_MAX_OPEN_CONNECTIONS"
@ -79,6 +82,8 @@ const (
 	DATABASE_MAX_CONN_LIFETIME    = "DATABASE_MAX_CONN_LIFETIME"
 	DATABASE_CONN_TIMEOUT         = "DATABSE_CONN_TIMEOUT"
 	DATABASE_MAX_CONN_IDLE_TIME   = "DATABASE_MAX_CONN_IDLE_TIME"
+
+	DEBUG_PPROF = "DEBUG_PPROF"
 )

 // Bind env vars for eth node and DB configuration
@ -109,7 +114,9 @@ func init() {
 	viper.BindEnv("database.type", DATABASE_TYPE)
 	viper.BindEnv("database.driver", DATABASE_DRIVER_TYPE)
 	viper.BindEnv("database.dumpDestination", DATABASE_DUMP_DST)
+	viper.BindEnv("database.fileMode", DATABASE_FILE_MODE)
 	viper.BindEnv("database.filePath", DATABASE_FILE_PATH)
+	viper.BindEnv("database.fileCsvDir", DATABASE_FILE_CSV_DIR)

 	viper.BindEnv("cache.database", DB_CACHE_SIZE_MB)
 	viper.BindEnv("cache.trie", TRIE_CACHE_SIZE_MB)
@ -131,6 +138,7 @@ func init() {

 	viper.BindEnv("statediff.prerun", STATEDIFF_PRERUN)
 	viper.BindEnv("prerun.only", PRERUN_ONLY)
+	viper.BindEnv("prerun.parallel", PRERUN_PARALLEL)
 	viper.BindEnv("prerun.start", PRERUN_RANGE_START)
 	viper.BindEnv("prerun.stop", PRERUN_RANGE_STOP)
 	viper.BindEnv("prerun.params.intermediateStateNodes", PRERUN_INTERMEDIATE_STATE_NODES)
@ -142,4 +150,6 @@ func init() {

 	viper.BindEnv("log.level", LOG_LEVEL)
 	viper.BindEnv("log.file", LOG_FILE_PATH)
+
+	viper.BindEnv("debug.pprof", DEBUG_PPROF)
 }
--- a/cmd/root.go
+++ b/cmd/root.go
@ -34,7 +34,7 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"

-	"github.com/vulcanize/eth-statediff-service/pkg/prom"
+	"github.com/cerc-io/eth-statediff-service/pkg/prom"
 )

 var (
@ -140,7 +140,9 @@ func init() {
 	rootCmd.PersistentFlags().String("database-type", "postgres", "database type (currently supported: postgres, dump)")
 	rootCmd.PersistentFlags().String("database-driver", "sqlx", "database driver type (currently supported: sqlx, pgx)")
 	rootCmd.PersistentFlags().String("database-dump-dst", "stdout", "dump destination (for database-type=dump; options: stdout, stderr, discard)")
-	rootCmd.PersistentFlags().String("database-file-path", "", "full file path (for database-type=file)")
+	rootCmd.PersistentFlags().String("database-file-mode", "csv", "mode for writing file (for database-type=file; options: csv, sql)")
+	rootCmd.PersistentFlags().String("database-file-csv-dir", "", "full directory path (for database-file-mode=csv)")
+	rootCmd.PersistentFlags().String("database-file-path", "", "full file path (for database-file-mode=sql)")

 	rootCmd.PersistentFlags().String("eth-node-id", "", "eth node id")
 	rootCmd.PersistentFlags().String("eth-client-name", "eth-statediff-service", "eth client name")
@ -198,6 +200,8 @@ func init() {
 	viper.BindPFlag("database.type", rootCmd.PersistentFlags().Lookup("database-type"))
 	viper.BindPFlag("database.driver", rootCmd.PersistentFlags().Lookup("database-driver"))
 	viper.BindPFlag("database.dumpDestination", rootCmd.PersistentFlags().Lookup("database-dump-dst"))
+	viper.BindPFlag("database.fileMode", rootCmd.PersistentFlags().Lookup("database-file-mode"))
+	viper.BindPFlag("database.fileCsvDir", rootCmd.PersistentFlags().Lookup("database-file-csv-dir"))
 	viper.BindPFlag("database.filePath", rootCmd.PersistentFlags().Lookup("database-file-path"))

 	viper.BindPFlag("ethereum.nodeID", rootCmd.PersistentFlags().Lookup("eth-node-id"))
@ -217,6 +221,7 @@ func init() {
 	viper.BindPFlag("prom.metrics", rootCmd.PersistentFlags().Lookup("prom-metrics"))

 	viper.BindPFlag("prerun.only", rootCmd.PersistentFlags().Lookup("prerun-only"))
+	viper.BindPFlag("prerun.parallel", rootCmd.PersistentFlags().Lookup("prerun-parallel"))
 	viper.BindPFlag("prerun.start", rootCmd.PersistentFlags().Lookup("prerun-start"))
 	viper.BindPFlag("prerun.stop", rootCmd.PersistentFlags().Lookup("prerun-stop"))
 	viper.BindPFlag("prerun.params.intermediateStateNodes", rootCmd.PersistentFlags().Lookup("prerun-intermediate-state-nodes"))
@ -226,6 +231,8 @@ func init() {
 	viper.BindPFlag("prerun.params.includeTD", rootCmd.PersistentFlags().Lookup("prerun-include-td"))
 	viper.BindPFlag("prerun.params.includeCode", rootCmd.PersistentFlags().Lookup("prerun-include-code"))

+	viper.BindPFlag("debug.pprof", rootCmd.PersistentFlags().Lookup("debug-pprof"))
+
 	rand.Seed(time.Now().UnixNano())
 }

@ -297,18 +304,35 @@ func getConfig(nodeInfo node.Info) (interfaces.Config, error) {
 	if err != nil {
 		return nil, err
 	}
-	logWithCommand.Infof("configuring service for database type: %s", dbType)
+	logWithCommand.Infof("Configuring service for database type: %s", dbType)
 	var indexerConfig interfaces.Config
 	switch dbType {
 	case shared.FILE:
-		logWithCommand.Info("starting in sql file writing mode")
-		filePathStr := viper.GetString("database.filePath")
-		if filePathStr == "" {
-			logWithCommand.Fatal("when operating in sql file writing mode a file path must be provided")
+		logWithCommand.Info("Starting in sql file writing mode")
+
+		fileModeStr := viper.GetString("database.fileMode")
+		fileMode, err := file.ResolveFileMode(fileModeStr)
+		if err != nil {
+			utils.Fatalf("%v", err)
+		}
+
+		filePathStr := viper.GetString("database.filePath")
+		if fileMode == file.SQL && filePathStr == "" {
+			logWithCommand.Fatal("When operating in sql file writing mode a file path must be provided")
+		}
+
+		fileCsvDirStr := viper.GetString("database.fileCsvDir")
+		if fileMode == file.CSV && fileCsvDirStr == "" {
+			logWithCommand.Fatal("When operating in csv file writing mode a directory path must be provided")
+		}
+
+		indexerConfig = file.Config{
+			Mode:      fileMode,
+			OutputDir: fileCsvDirStr,
+			FilePath:  filePathStr,
 		}
-		indexerConfig = file.Config{FilePath: filePathStr}
 	case shared.DUMP:
-		logWithCommand.Info("starting in data dump mode")
+		logWithCommand.Info("Starting in data dump mode")
 		dumpDstStr := viper.GetString("database.dumpDestination")
 		dumpDst, err := dump.ResolveDumpType(dumpDstStr)
 		if err != nil {
@ -325,7 +349,7 @@ func getConfig(nodeInfo node.Info) (interfaces.Config, error) {
 			return nil, fmt.Errorf("unrecognized dump destination: %s", dumpDst)
 		}
 	case shared.POSTGRES:
-		logWithCommand.Info("starting in postgres mode")
+		logWithCommand.Info("Starting in postgres mode")
 		driverTypeStr := viper.GetString("database.driver")
 		driverType, err := postgres.ResolveDriverType(driverTypeStr)
 		if err != nil {
--- a/cmd/serve.go
+++ b/cmd/serve.go
@ -16,8 +16,11 @@
 package cmd

 import (
+	"net/http"
+	_ "net/http/pprof"
 	"os"
 	"os/signal"
+	"runtime"
 	"sync"

 	"github.com/ethereum/go-ethereum/rpc"
@ -25,8 +28,8 @@ import (
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"

-	sd "github.com/vulcanize/eth-statediff-service/pkg"
-	srpc "github.com/vulcanize/eth-statediff-service/pkg/rpc"
+	sd "github.com/cerc-io/eth-statediff-service/pkg"
+	srpc "github.com/cerc-io/eth-statediff-service/pkg/rpc"
 )

 // serveCmd represents the serve command
@ -47,18 +50,51 @@ func init() {
 	rootCmd.AddCommand(serveCmd)
 }

+func maxParallelism() int {
+	maxProcs := runtime.GOMAXPROCS(0)
+	numCPU := runtime.NumCPU()
+	if maxProcs < numCPU {
+		return maxProcs
+	}
+	return numCPU
+}
+
 func serve() {
 	logWithCommand.Info("Running eth-statediff-service serve command")
+	logWithCommand.Infof("Parallelism: %d", maxParallelism())

-	statediffService, err := createStateDiffService()
+	reader, chainConf, nodeInfo := instantiateLevelDBReader()
+
+	// report latest block info
+	header, err := reader.GetLatestHeader()
+	if err != nil {
+		logWithCommand.Fatalf("Unable to determine latest header height and hash: %s", err.Error())
+	}
+	if header.Number == nil {
+		logWithCommand.Fatal("Latest header found in levelDB has a nil block height")
+	}
+	logWithCommand.Infof("Latest block found in the levelDB\r\nheight: %s, hash: %s", header.Number.String(), header.Hash().Hex())
+
+	statediffService, err := createStateDiffService(reader, chainConf, nodeInfo)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}

+	// Enable the pprof agent if configured
+	if viper.GetBool("debug.pprof") {
+		// See: https://www.farsightsecurity.com/blog/txt-record/go-remote-profiling-20161028/
+		// For security reasons: do not use the default http multiplexor elsewhere in this process.
+		go func() {
+			logWithCommand.Info("Starting pprof listener on port 6060")
+			logWithCommand.Fatal(http.ListenAndServe("localhost:6060", nil))
+		}()
+	}
+
 	// short circuit if we only want to perform prerun
 	if viper.GetBool("prerun.only") {
-		if err := statediffService.Run(nil); err != nil {
-			logWithCommand.Fatal("unable to perform prerun: %v", err)
+		parallel := viper.GetBool("prerun.parallel")
+		if err := statediffService.Run(nil, parallel); err != nil {
+			logWithCommand.Fatal("Unable to perform prerun: %v", err)
 		}
 		return
 	}
@ -88,17 +124,17 @@ func startServers(serv sd.StateDiffService) error {
 	ipcPath := viper.GetString("server.ipcPath")
 	httpPath := viper.GetString("server.httpPath")
 	if ipcPath == "" && httpPath == "" {
-		logWithCommand.Fatal("need an ipc path and/or an http path")
+		logWithCommand.Fatal("Need an ipc path and/or an http path")
 	}
 	if ipcPath != "" {
-		logWithCommand.Info("starting up IPC server")
+		logWithCommand.Info("Starting up IPC server")
 		_, _, err := srpc.StartIPCEndpoint(ipcPath, serv.APIs())
 		if err != nil {
 			return err
 		}
 	}
 	if httpPath != "" {
-		logWithCommand.Info("starting up HTTP server")
+		logWithCommand.Info("Starting up HTTP server")
 		_, err := srpc.StartHTTPEndpoint(httpPath, serv.APIs(), []string{"statediff"}, nil, []string{"*"}, rpc.HTTPTimeouts{})
 		if err != nil {
 			return err
--- a/cmd/stats.go
+++ b/cmd/stats.go
@ -0,0 +1,54 @@
+// Copyright © 2022 Vulcanize, Inc
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+package cmd
+
+import (
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/cobra"
+)
+
+// statsCmd represents the serve command
+var statsCmd = &cobra.Command{
+	Use:   "stats",
+	Short: "Report stats for cold levelDB",
+	Long: `Usage
+
+./eth-statediff-service stats --config={path to toml config file}`,
+	Run: func(cmd *cobra.Command, args []string) {
+		subCommand = cmd.CalledAs()
+		logWithCommand = *logrus.WithField("SubCommand", subCommand)
+		stats()
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(statsCmd)
+}
+
+func stats() {
+	logWithCommand.Info("Running eth-statediff-service stats command")
+
+	reader, _, _ := instantiateLevelDBReader()
+
+	header, err := reader.GetLatestHeader()
+	if err != nil {
+		logWithCommand.Fatalf("Unable to determine latest header height and hash: %s", err.Error())
+	}
+	if header.Number == nil {
+		logWithCommand.Fatal("Latest header found in levelDB has a nil block height")
+	}
+	logWithCommand.Infof("Latest block found in the levelDB\r\nheight: %s, hash: %s", header.Number.String(), header.Hash().Hex())
+}
--- a/cmd/util.go
+++ b/cmd/util.go
@ -6,83 +6,35 @@ import (
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/statediff"
-	gethsd "github.com/ethereum/go-ethereum/statediff"
 	ind "github.com/ethereum/go-ethereum/statediff/indexer"
+	"github.com/ethereum/go-ethereum/statediff/indexer/node"
+	"github.com/ethereum/go-ethereum/statediff/indexer/shared"
 	"github.com/ethereum/go-ethereum/trie"
 	"github.com/spf13/viper"

-	sd "github.com/vulcanize/eth-statediff-service/pkg"
+	sd "github.com/cerc-io/eth-statediff-service/pkg"
+	"github.com/cerc-io/eth-statediff-service/pkg/prom"
 )

 type blockRange [2]uint64

-func createStateDiffService() (sd.StateDiffService, error) {
-	// load some necessary params
-	logWithCommand.Info("Loading statediff service parameters")
-	mode := viper.GetString("leveldb.mode")
-	path := viper.GetString("leveldb.path")
-	ancientPath := viper.GetString("leveldb.ancient")
-	url := viper.GetString("leveldb.url")
-
-	if mode == "local" {
-		if path == "" || ancientPath == "" {
-			logWithCommand.Fatal("Require a valid eth LevelDB primary datastore path and ancient datastore path")
-		}
-	} else if mode == "remote" {
-		if url == "" {
-			logWithCommand.Fatal("Require a valid RPC url for accessing LevelDB")
-		}
-	} else {
-		logWithCommand.Fatal("Invalid mode provided for LevelDB access")
-	}
-
-	nodeInfo := getEthNodeInfo()
-
-	var chainConf *params.ChainConfig
-	var err error
-	chainConfigPath := viper.GetString("ethereum.chainConfig")
-
-	if chainConfigPath != "" {
-		chainConf, err = statediff.LoadConfig(chainConfigPath)
-	} else {
-		chainConf, err = statediff.ChainConfig(nodeInfo.ChainID)
-	}
-
-	if err != nil {
-		logWithCommand.Fatal(err)
-	}
-
-	// create LevelDB reader
-	logWithCommand.Info("Creating LevelDB reader")
-	readerConf := sd.LvLDBReaderConfig{
-		TrieConfig: &trie.Config{
-			Cache:     viper.GetInt("cache.trie"),
-			Journal:   "",
-			Preimages: false,
-		},
-		ChainConfig: chainConf,
-		Mode:        mode,
-		Path:        path,
-		AncientPath: ancientPath,
-		Url:         url,
-		DBCacheSize: viper.GetInt("cache.database"),
-	}
-	lvlDBReader, err := sd.NewLvlDBReader(readerConf)
-	if err != nil {
-		logWithCommand.Fatal(err)
-	}
-
+func createStateDiffService(lvlDBReader sd.Reader, chainConf *params.ChainConfig, nodeInfo node.Info) (sd.StateDiffService, error) {
 	// create statediff service
 	logWithCommand.Info("Setting up database")
 	conf, err := getConfig(nodeInfo)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+
 	logWithCommand.Info("Creating statediff indexer")
-	_, indexer, err := ind.NewStateDiffIndexer(context.Background(), chainConf, nodeInfo, conf)
+	db, indexer, err := ind.NewStateDiffIndexer(context.Background(), chainConf, nodeInfo, conf)
 	if err != nil {
 		logWithCommand.Fatal(err)
 	}
+	if conf.Type() == shared.POSTGRES && viper.GetBool("prom.dbStats") {
+		prom.RegisterDBCollector(viper.GetString("database.name"), db)
+	}
+
 	logWithCommand.Info("Creating statediff service")
 	sdConf := sd.Config{
 		ServiceWorkers:  viper.GetUint("statediff.serviceWorkers"),
@ -97,7 +49,7 @@ func setupPreRunRanges() []sd.RangeRequest {
 	if !viper.GetBool("statediff.prerun") {
 		return nil
 	}
-	preRunParams := gethsd.Params{
+	preRunParams := statediff.Params{
 		IntermediateStateNodes:   viper.GetBool("prerun.params.intermediateStateNodes"),
 		IntermediateStorageNodes: viper.GetBool("prerun.params.intermediateStorageNodes"),
 		IncludeBlock:             viper.GetBool("prerun.params.includeBlock"),
@ -134,3 +86,61 @@ func setupPreRunRanges() []sd.RangeRequest {

 	return blockRanges
 }
+
+func instantiateLevelDBReader() (sd.Reader, *params.ChainConfig, node.Info) {
+	// load some necessary params
+	logWithCommand.Info("Loading statediff service parameters")
+	mode := viper.GetString("leveldb.mode")
+	path := viper.GetString("leveldb.path")
+	ancientPath := viper.GetString("leveldb.ancient")
+	url := viper.GetString("leveldb.url")
+
+	if mode == "local" {
+		if path == "" || ancientPath == "" {
+			logWithCommand.Fatal("Require a valid eth LevelDB primary datastore path and ancient datastore path")
+		}
+	} else if mode == "remote" {
+		if url == "" {
+			logWithCommand.Fatal("Require a valid RPC url for accessing LevelDB")
+		}
+	} else {
+		logWithCommand.Fatal("Invalid mode provided for LevelDB access")
+	}
+
+	nodeInfo := getEthNodeInfo()
+
+	var chainConf *params.ChainConfig
+	var err error
+	chainConfigPath := viper.GetString("ethereum.chainConfig")
+
+	if chainConfigPath != "" {
+		chainConf, err = statediff.LoadConfig(chainConfigPath)
+	} else {
+		chainConf, err = statediff.ChainConfig(nodeInfo.ChainID)
+	}
+
+	if err != nil {
+		logWithCommand.Fatalf("Unable to instantiate chain config: %s", err.Error())
+	}
+
+	// create LevelDB reader
+	logWithCommand.Info("Creating LevelDB reader")
+	readerConf := sd.LvLDBReaderConfig{
+		TrieConfig: &trie.Config{
+			Cache:     viper.GetInt("cache.trie"),
+			Journal:   "",
+			Preimages: false,
+		},
+		ChainConfig: chainConf,
+		Mode:        mode,
+		Path:        path,
+		AncientPath: ancientPath,
+		Url:         url,
+		DBCacheSize: viper.GetInt("cache.database"),
+	}
+	reader, err := sd.NewLvlDBReader(readerConf)
+	if err != nil {
+		logWithCommand.Fatalf("Unable to instantiate levelDB reader: %s", err.Error())
+	}
+	return reader, chainConf, nodeInfo
+}
--- a/cmd/version.go
+++ b/cmd/version.go
@ -20,7 +20,7 @@ import (
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"

-	v "github.com/vulcanize/eth-statediff-service/version"
+	v "github.com/cerc-io/eth-statediff-service/version"
 )

 // versionCmd represents the version command
--- a/environments/config.toml
+++ b/environments/config.toml
@ -2,7 +2,6 @@
    mode = "local"
    path = "/app/geth-rw/chaindata"
    ancient = "/app/geth-rw/chaindata/ancient"
-    url = "http://127.0.0.1:8082/"

 [server]
    ipcPath = ""
@ -31,31 +30,29 @@
    level = "info"

 [database]
+    type = "postgres"
    name     = ""
    hostname = ""
    port     = 5432
    user     = ""
    password = ""
-    type = "postgres"
    driver = "sqlx"
-    dumpDestination = ""
-    filePath = ""

 [cache]
    database = 1024
    trie = 4096

 [prom]
-    dbStats = false
    metrics = true
    http = true
    httpAddr = "0.0.0.0"
    httpPort = 9100
+    dbStats = false

 [ethereum]
-    chainConfig = ""
    nodeID = ""
    clientName = "eth-statediff-service"
    genesisBlock = "0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3"
    networkID = 1
    chainID = 1
+    chainConfig = ""
--- a/go.mod
+++ b/go.mod
@ -1,35 +1,41 @@
-module github.com/vulcanize/eth-statediff-service
+module github.com/cerc-io/eth-statediff-service

 go 1.18

 require (
-	github.com/ethereum/go-ethereum v1.10.18
-	github.com/jmoiron/sqlx v1.2.0
-	github.com/prometheus/client_golang v1.4.0
-	github.com/sirupsen/logrus v1.7.0
+	github.com/cerc-io/leveldb-ethdb-rpc v1.1.13
+	github.com/ethereum/go-ethereum v1.11.5
+	github.com/jmoiron/sqlx v1.3.5 // indirect
+	github.com/prometheus/client_golang v1.14.0
+	github.com/sirupsen/logrus v1.9.0
 	github.com/spf13/cobra v1.3.0
 	github.com/spf13/viper v1.10.1
-	github.com/vulcanize/go-eth-state-node-iterator v1.0.3
-	github.com/vulcanize/leveldb-ethdb-rpc v0.1.2
 )

 require (
-	github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6 // indirect
+	github.com/DataDog/zstd v1.5.2 // indirect
 	github.com/VictoriaMetrics/fastcache v1.6.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/btcsuite/btcd/btcec/v2 v2.2.0 // indirect
-	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/cockroachdb/errors v1.9.1 // indirect
+	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b // indirect
+	github.com/cockroachdb/pebble v0.0.0-20230209160836-829675f94811 // indirect
+	github.com/cockroachdb/redact v1.1.3 // indirect
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/deckarep/golang-set v1.8.0 // indirect
+	github.com/deckarep/golang-set/v2 v2.1.0 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
 	github.com/deepmap/oapi-codegen v1.8.2 // indirect
 	github.com/edsrzf/mmap-go v1.0.0 // indirect
 	github.com/fjl/memsize v0.0.0-20190710130421-bcb5799ab5e5 // indirect
-	github.com/fsnotify/fsnotify v1.5.1 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/gballet/go-libpcsclite v0.0.0-20190607065134-2772fd86a8ff // indirect
-	github.com/georgysavva/scany v0.2.9 // indirect
-	github.com/go-ole/go-ole v1.2.1 // indirect
-	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/georgysavva/scany v1.2.1 // indirect
+	github.com/getsentry/sentry-go v0.18.0 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/go-stack/stack v1.8.1 // indirect
+	github.com/gofrs/flock v0.8.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang-jwt/jwt/v4 v4.3.0 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
@ -48,14 +54,15 @@ require (
 	github.com/influxdata/influxdb-client-go/v2 v2.4.0 // indirect
 	github.com/influxdata/line-protocol v0.0.0-20210311194329-9aa0e372d097 // indirect
 	github.com/ipfs/bbloom v0.0.4 // indirect
-	github.com/ipfs/go-block-format v0.0.2 // indirect
-	github.com/ipfs/go-cid v0.0.7 // indirect
-	github.com/ipfs/go-datastore v0.4.2 // indirect
-	github.com/ipfs/go-ipfs-blockstore v1.0.1 // indirect
-	github.com/ipfs/go-ipfs-ds-help v1.0.0 // indirect
-	github.com/ipfs/go-ipfs-util v0.0.1 // indirect
-	github.com/ipfs/go-ipld-format v0.2.0 // indirect
-	github.com/ipfs/go-log v0.0.1 // indirect
+	github.com/ipfs/go-block-format v0.0.3 // indirect
+	github.com/ipfs/go-cid v0.2.0 // indirect
+	github.com/ipfs/go-datastore v0.5.1 // indirect
+	github.com/ipfs/go-ipfs-blockstore v1.2.0 // indirect
+	github.com/ipfs/go-ipfs-ds-help v1.1.0 // indirect
+	github.com/ipfs/go-ipfs-util v0.0.2 // indirect
+	github.com/ipfs/go-ipld-format v0.4.0 // indirect
+	github.com/ipfs/go-log v1.0.5 // indirect
+	github.com/ipfs/go-log/v2 v2.1.3 // indirect
 	github.com/ipfs/go-metrics-interface v0.0.1 // indirect
 	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
 	github.com/jackc/pgconn v1.10.0 // indirect
@ -67,65 +74,70 @@ require (
 	github.com/jackc/pgx/v4 v4.13.0 // indirect
 	github.com/jackc/puddle v1.1.3 // indirect
 	github.com/jackpal/go-nat-pmp v1.0.2 // indirect
-	github.com/jbenet/goprocess v0.0.0-20160826012719-b497e2f366b8 // indirect
-	github.com/lib/pq v1.10.2 // indirect
+	github.com/jbenet/goprocess v0.1.4 // indirect
+	github.com/klauspost/compress v1.15.15 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.9 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
+	github.com/lib/pq v1.10.7 // indirect
 	github.com/magiconair/properties v1.8.5 // indirect
-	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
 	github.com/mattn/go-runewidth v0.0.9 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/minio/blake2b-simd v0.0.0-20160723061019-3f5f724cb5b1 // indirect
-	github.com/minio/sha256-simd v0.1.1-0.20190913151208-6de447530771 // indirect
+	github.com/minio/sha256-simd v1.0.0 // indirect
 	github.com/mitchellh/mapstructure v1.4.3 // indirect
 	github.com/mitchellh/pointerstructure v1.2.0 // indirect
-	github.com/mr-tron/base58 v1.1.3 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
 	github.com/multiformats/go-base32 v0.0.3 // indirect
 	github.com/multiformats/go-base36 v0.1.0 // indirect
 	github.com/multiformats/go-multibase v0.0.3 // indirect
-	github.com/multiformats/go-multihash v0.0.14 // indirect
-	github.com/multiformats/go-varint v0.0.5 // indirect
+	github.com/multiformats/go-multihash v0.1.0 // indirect
+	github.com/multiformats/go-varint v0.0.6 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/pelletier/go-toml v1.9.4 // indirect
 	github.com/peterh/liner v1.1.1-0.20190123174540-a2c9a5303de7 // indirect
-	github.com/pganalyze/pg_query_go/v2 v2.1.0 // indirect
+	github.com/pganalyze/pg_query_go/v2 v2.2.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_model v0.2.0 // indirect
-	github.com/prometheus/common v0.9.1 // indirect
-	github.com/prometheus/procfs v0.0.8 // indirect
-	github.com/prometheus/tsdb v0.7.1 // indirect
-	github.com/rjeczalik/notify v0.9.1 // indirect
+	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/prometheus/common v0.39.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
+	github.com/rogpeppe/go-internal v1.9.0 // indirect
 	github.com/rs/cors v1.7.0 // indirect
-	github.com/shirou/gopsutil v3.21.5+incompatible // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/shirou/gopsutil v3.21.11+incompatible // indirect
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
 	github.com/spf13/afero v1.6.0 // indirect
 	github.com/spf13/cast v1.4.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/status-im/keycard-go v0.0.0-20190316090335-8537d3370df4 // indirect
-	github.com/stretchr/objx v0.2.0 // indirect
-	github.com/stretchr/testify v1.7.0 // indirect
+	github.com/status-im/keycard-go v0.2.0 // indirect
 	github.com/subosito/gotenv v1.2.0 // indirect
-	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
-	github.com/thoas/go-funk v0.9.2 // indirect
-	github.com/tklauser/go-sysconf v0.3.6 // indirect
-	github.com/tklauser/numcpus v0.2.2 // indirect
-	github.com/tyler-smith/go-bip39 v1.0.1-0.20181017060643-dbb3b84ba2ef // indirect
-	github.com/whyrusleeping/go-logging v0.0.0-20170515211332-0457bb6b88fc // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220614013038-64ee5596c38a // indirect
+	github.com/thoas/go-funk v0.9.3 // indirect
+	github.com/tklauser/go-sysconf v0.3.11 // indirect
+	github.com/tklauser/numcpus v0.6.0 // indirect
+	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
+	github.com/urfave/cli/v2 v2.17.2-0.20221006022127-8f469abc00aa // indirect
+	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
+	github.com/yusufpapurcu/wmi v1.2.2 // indirect
 	go.uber.org/atomic v1.7.0 // indirect
-	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
-	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a // indirect
-	golang.org/x/text v0.3.7 // indirect
-	golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba // indirect
-	google.golang.org/protobuf v1.27.1 // indirect
-	gopkg.in/ini.v1 v1.66.2 // indirect
+	go.uber.org/multierr v1.6.0 // indirect
+	go.uber.org/zap v1.17.0 // indirect
+	golang.org/x/crypto v0.6.0 // indirect
+	golang.org/x/exp v0.0.0-20230206171751-46f607a40771 // indirect
+	golang.org/x/net v0.6.0 // indirect
+	golang.org/x/sync v0.1.0 // indirect
+	golang.org/x/sys v0.5.0 // indirect
+	golang.org/x/text v0.7.0 // indirect
+	golang.org/x/time v0.0.0-20220922220347-f3bd1da661af // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/natefinch/npipe.v2 v2.0.0-20160621034901-c1b8fa8bdcce // indirect
-	gopkg.in/urfave/cli.v1 v1.20.0 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	lukechampine.com/blake3 v1.1.6 // indirect
 )

-replace github.com/ethereum/go-ethereum v1.10.18 => github.com/vulcanize/go-ethereum v1.10.18-statediff-3.2.1
+replace github.com/ethereum/go-ethereum v1.11.5 => github.com/cerc-io/go-ethereum v1.11.5-statediff-4.3.9-alpha
--- a/go.sum
+++ b/go.sum
--- a/main.go
+++ b/main.go
@ -15,7 +15,7 @@

 package main

-import "github.com/vulcanize/eth-statediff-service/cmd"
+import "github.com/cerc-io/eth-statediff-service/cmd"

 func main() {
 	cmd.Execute()
--- a/pkg/builder.go
+++ b/pkg/builder.go
@ -20,93 +20,25 @@
 package statediff

 import (
-	"bytes"
 	"fmt"
 	"math/bits"
 	"sync"

-	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/state"
-	"github.com/ethereum/go-ethereum/core/types"
-	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/log"
-	"github.com/ethereum/go-ethereum/rlp"
 	sd "github.com/ethereum/go-ethereum/statediff"
-	sdtrie "github.com/ethereum/go-ethereum/statediff/trie_helpers"
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
-	"github.com/ethereum/go-ethereum/trie"
+	iter "github.com/ethereum/go-ethereum/trie/concurrent_iterator"
 	"github.com/sirupsen/logrus"
-
-	iter "github.com/vulcanize/go-eth-state-node-iterator"
 )

-var (
-	nullHashBytes     = common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")
-	emptyNode, _      = rlp.EncodeToBytes(&[]byte{})
-	emptyContractRoot = crypto.Keccak256Hash(emptyNode)
-	nullCodeHash      = crypto.Keccak256Hash([]byte{}).Bytes()
-)
-
-// Builder interface exposes the method for building a state diff between two blocks
-type Builder interface {
-	BuildStateDiffObject(args sd.Args, params sd.Params) (sdtypes.StateObject, error)
-	BuildStateTrieObject(current *types.Block) (sdtypes.StateObject, error)
-	WriteStateDiffObject(args sdtypes.StateRoots, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error
-}
-
 type builder struct {
-	stateCache state.Database
+	sd.StateDiffBuilder
 	numWorkers uint
 }

-type iterPair struct {
-	older, newer trie.NodeIterator
-}
-
-func resolveNode(it trie.NodeIterator, trieDB *trie.Database) (sdtypes.StateNode, []interface{}, error) {
-	nodePath := make([]byte, len(it.Path()))
-	copy(nodePath, it.Path())
-	node, err := trieDB.Node(it.Hash())
-	if err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	var nodeElements []interface{}
-	if err := rlp.DecodeBytes(node, &nodeElements); err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	ty, err := sdtrie.CheckKeyType(nodeElements)
-	if err != nil {
-		return sdtypes.StateNode{}, nil, err
-	}
-	return sdtypes.StateNode{
-		NodeType:  ty,
-		Path:      nodePath,
-		NodeValue: node,
-	}, nodeElements, nil
-}
-
-// convenience
-func stateNodeAppender(nodes *[]sdtypes.StateNode) sdtypes.StateNodeSink {
-	return func(node sdtypes.StateNode) error {
-		*nodes = append(*nodes, node)
-		return nil
-	}
-}
-func storageNodeAppender(nodes *[]sdtypes.StorageNode) sdtypes.StorageNodeSink {
-	return func(node sdtypes.StorageNode) error {
-		*nodes = append(*nodes, node)
-		return nil
-	}
-}
-func codeMappingAppender(data *[]sdtypes.CodeAndCodeHash) sdtypes.CodeSink {
-	return func(c sdtypes.CodeAndCodeHash) error {
-		*data = append(*data, c)
-		return nil
-	}
-}
-
 // NewBuilder is used to create a statediff builder
-func NewBuilder(stateCache state.Database, workers uint) (Builder, error) {
+func NewBuilder(stateCache state.Database, workers uint) (sd.Builder, error) {
 	if workers == 0 {
 		workers = 1
 	}
@ -114,88 +46,20 @@ func NewBuilder(stateCache state.Database, workers uint) (Builder, error) {
 		return nil, fmt.Errorf("workers must be a power of 2")
 	}
 	return &builder{
-		stateCache: stateCache, // state cache is safe for concurrent reads
+		StateDiffBuilder: sd.StateDiffBuilder{
+			StateCache: stateCache,
+		},
 		numWorkers: workers,
 	}, nil
 }

-// BuildStateTrieObject builds a state trie object from the provided block
-func (sdb *builder) BuildStateTrieObject(current *types.Block) (sdtypes.StateObject, error) {
-	currentTrie, err := sdb.stateCache.OpenTrie(current.Root())
-	if err != nil {
-		return sdtypes.StateObject{}, fmt.Errorf("error creating trie for block %d: %v", current.Number(), err)
-	}
-	it := currentTrie.NodeIterator([]byte{})
-	stateNodes, codeAndCodeHashes, err := sdb.buildStateTrie(it)
-	if err != nil {
-		return sdtypes.StateObject{}, fmt.Errorf("error collecting state nodes for block %d: %v", current.Number(), err)
-	}
-	return sdtypes.StateObject{
-		BlockNumber:       current.Number(),
-		BlockHash:         current.Hash(),
-		Nodes:             stateNodes,
-		CodeAndCodeHashes: codeAndCodeHashes,
-	}, nil
-}
-
-func (sdb *builder) buildStateTrie(it trie.NodeIterator) ([]sdtypes.StateNode, []sdtypes.CodeAndCodeHash, error) {
-	stateNodes := make([]sdtypes.StateNode, 0)
-	codeAndCodeHashes := make([]sdtypes.CodeAndCodeHash, 0)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			node.LeafKey = leafKey
-			if !bytes.Equal(account.CodeHash, nullCodeHash) {
-				var storageNodes []sdtypes.StorageNode
-				err := sdb.buildStorageNodesEventual(account.Root, true, storageNodeAppender(&storageNodes))
-				if err != nil {
-					return nil, nil, fmt.Errorf("failed building eventual storage diffs for account %+v\r\nerror: %v", account, err)
-				}
-				node.StorageNodes = storageNodes
-				// emit codehash => code mappings for code
-				codeHash := common.BytesToHash(account.CodeHash)
-				code, err := sdb.stateCache.ContractCode(common.Hash{}, codeHash)
-				if err != nil {
-					return nil, nil, fmt.Errorf("failed to retrieve code for codehash %s\r\n error: %v", codeHash.String(), err)
-				}
-				codeAndCodeHashes = append(codeAndCodeHashes, sdtypes.CodeAndCodeHash{
-					Hash: codeHash,
-					Code: code,
-				})
-			}
-			stateNodes = append(stateNodes, node)
-		case sdtypes.Extension, sdtypes.Branch:
-			stateNodes = append(stateNodes, node)
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return stateNodes, codeAndCodeHashes, it.Error()
-}
-
 // BuildStateDiffObject builds a statediff object from two blocks and the provided parameters
 func (sdb *builder) BuildStateDiffObject(args sd.Args, params sd.Params) (sdtypes.StateObject, error) {
 	var stateNodes []sdtypes.StateNode
 	var codeAndCodeHashes []sdtypes.CodeAndCodeHash
 	err := sdb.WriteStateDiffObject(
-		sdtypes.StateRoots{OldStateRoot: args.OldStateRoot, NewStateRoot: args.NewStateRoot},
-		params, stateNodeAppender(&stateNodes), codeMappingAppender(&codeAndCodeHashes))
+		args,
+		params, sd.StateNodeAppender(&stateNodes), sd.CodeMappingAppender(&codeAndCodeHashes))
 	if err != nil {
 		return sdtypes.StateObject{}, err
 	}
@ -208,19 +72,13 @@ func (sdb *builder) BuildStateDiffObject(args sd.Args, params sd.Params) (sdtype
 }

 // WriteStateDiffObject writes a statediff object to output callback
-func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	if len(params.WatchedAddresses) > 0 {
-		// if we are watching only specific accounts then we are only diffing leaf nodes
-		log.Info("Ignoring intermediate state nodes because WatchedAddresses was passed")
-		params.IntermediateStateNodes = false
-	}
-
+func (sdb *builder) WriteStateDiffObject(args sd.Args, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
 	// Load tries for old and new states
-	oldTrie, err := sdb.stateCache.OpenTrie(args.OldStateRoot)
+	oldTrie, err := sdb.StateCache.OpenTrie(args.OldStateRoot)
 	if err != nil {
 		return fmt.Errorf("error creating trie for oldStateRoot: %v", err)
 	}
-	newTrie, err := sdb.stateCache.OpenTrie(args.NewStateRoot)
+	newTrie, err := sdb.StateCache.OpenTrie(args.NewStateRoot)
 	if err != nil {
 		return fmt.Errorf("error creating trie for newStateRoot: %v", err)
 	}
@ -234,11 +92,11 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para
 	// Create iterators ahead of time to avoid race condition in state.Trie access
 	// We do two state iterations per subtrie: one for new/updated nodes,
 	// one for deleted/updated nodes; prepare 2 iterator instances for each task
-	var iterPairs [][]iterPair
+	var iterPairs [][]sd.IterPair
 	for i := uint(0); i < sdb.numWorkers; i++ {
-		iterPairs = append(iterPairs, []iterPair{
-			{older: oldIters1[i], newer: newIters1[i]},
-			{older: oldIters2[i], newer: newIters2[i]},
+		iterPairs = append(iterPairs, []sd.IterPair{
+			{Older: oldIters1[i], Newer: newIters1[i]},
+			{Older: oldIters2[i], Newer: newIters2[i]},
 		})
 	}

@ -255,8 +113,16 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para
 			wg.Add(1)
 			go func(worker uint) {
 				defer wg.Done()
-				if err := sdb.buildStateDiff(iterPairs[worker], params, nodeSender, codeSender); err != nil {
-					logrus.Errorf("buildStateDiff error for worker %d, pparams %+v", worker, params)
+				var err error
+				logger := log.New("hash", args.BlockHash.Hex(), "number", args.BlockNumber)
+				if !params.IntermediateStateNodes {
+					err = sdb.BuildStateDiffWithoutIntermediateStateNodes(iterPairs[worker], params, nodeSender, codeSender, logger)
+				} else {
+					err = sdb.BuildStateDiffWithIntermediateStateNodes(iterPairs[worker], params, nodeSender, codeSender, logger)
+				}
+
+				if err != nil {
+					logrus.Errorf("buildStateDiff error for worker %d, params %+v", worker, params)
 				}
 			}(w)
 		}
@ -288,599 +154,3 @@ func (sdb *builder) WriteStateDiffObject(args sdtypes.StateRoots, params sd.Para

 	return nil
 }
-
-func (sdb *builder) buildStateDiff(args []iterPair, params sd.Params, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	// collect a slice of all the intermediate nodes that were touched and exist at B
-	// a map of their leafkey to all the accounts that were touched and exist at B
-	// and a slice of all the paths for the nodes in both of the above sets
-	var diffAccountsAtB AccountMap
-	var diffPathsAtB map[string]bool
-	var err error
-	if params.IntermediateStateNodes {
-		diffAccountsAtB, diffPathsAtB, err = sdb.createdAndUpdatedStateWithIntermediateNodes(args[0], output)
-	} else {
-		diffAccountsAtB, diffPathsAtB, err = sdb.createdAndUpdatedState(args[0], params.WatchedAddressesLeafKeys())
-	}
-
-	if err != nil {
-		return fmt.Errorf("error collecting createdAndUpdatedNodes: %v", err)
-	}
-
-	// collect a slice of all the nodes that existed at a path in A that doesn't exist in B
-	// a map of their leafkey to all the accounts that were touched and exist at A
-	diffAccountsAtA, err := sdb.deletedOrUpdatedState(args[1], diffAccountsAtB, diffPathsAtB, params.WatchedAddressesLeafKeys(), params.IntermediateStorageNodes, output)
-	if err != nil {
-		return fmt.Errorf("error collecting deletedOrUpdatedNodes: %v", err)
-	}
-
-	// collect and sort the leafkeys for both account mappings into a slice
-	createKeys := sortKeys(diffAccountsAtB)
-	deleteKeys := sortKeys(diffAccountsAtA)
-
-	// and then find the intersection of these keys
-	// these are the leafkeys for the accounts which exist at both A and B but are different
-	// this also mutates the passed in createKeys and deleteKeys, removing the intersection keys
-	// and leaving the truly created or deleted keys in place
-	updatedKeys := findIntersection(createKeys, deleteKeys)
-
-	// build the diff nodes for the updated accounts using the mappings at both A and B as directed by the keys found as the intersection of the two
-	err = sdb.buildAccountUpdates(
-		diffAccountsAtB, diffAccountsAtA, updatedKeys, params.IntermediateStorageNodes, output)
-	if err != nil {
-		return fmt.Errorf("error building diff for updated accounts: %v", err)
-	}
-	// build the diff nodes for created accounts
-	err = sdb.buildAccountCreations(diffAccountsAtB, params.IntermediateStorageNodes, output, codeOutput)
-	if err != nil {
-		return fmt.Errorf("error building diff for created accounts: %v", err)
-	}
-	return nil
-}
-
-// createdAndUpdatedState returns
-// a mapping of their leafkeys to all the accounts that exist in a different state at B than A
-// and a slice of the paths for all of the nodes included in both
-func (sdb *builder) createdAndUpdatedState(iters iterPair, watchedAddressesLeafKeys map[common.Hash]struct{}) (AccountMap, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffAcountsAtB := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.older, iters.newer)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// created vs updated is important for leaf nodes since we need to diff their storage
-			// so we need to map all changed accounts at B to their leafkey, since account can change pathes but not leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if isWatchedAddress(watchedAddressesLeafKeys, leafKey) {
-				diffAcountsAtB[common.Bytes2Hex(leafKey)] = accountWrapper{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-					LeafKey:   leafKey,
-					Account:   &account,
-				}
-			}
-		}
-		// add both intermediate and leaf node paths to the list of diffPathsAtB
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffAcountsAtB, diffPathsAtB, it.Error()
-}
-
-// createdAndUpdatedStateWithIntermediateNodes returns
-// a slice of all the intermediate nodes that exist in a different state at B than A
-// a mapping of their leafkeys to all the accounts that exist in a different state at B than A
-// and a slice of the paths for all of the nodes included in both
-func (sdb *builder) createdAndUpdatedStateWithIntermediateNodes(iters iterPair, output sdtypes.StateNodeSink) (AccountMap, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffAcountsAtB := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.older, iters.newer)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// created vs updated is important for leaf nodes since we need to diff their storage
-			// so we need to map all changed accounts at B to their leafkey, since account can change paths but not leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			diffAcountsAtB[common.Bytes2Hex(leafKey)] = accountWrapper{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-				Account:   &account,
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// create a diff for any intermediate node that has changed at b
-			// created vs updated makes no difference for intermediate nodes since we do not need to diff storage
-			if err := output(sdtypes.StateNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-			}); err != nil {
-				return nil, nil, err
-			}
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-		// add both intermediate and leaf node paths to the list of diffPathsAtB
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffAcountsAtB, diffPathsAtB, it.Error()
-}
-
-// deletedOrUpdatedState returns a slice of all the paths that are emptied at B
-// and a mapping of their leafkeys to all the accounts that exist in a different state at A than B
-func (sdb *builder) deletedOrUpdatedState(iters iterPair, diffAccountsAtB AccountMap, diffPathsAtB map[string]bool, watchedAddressesLeafKeys map[common.Hash]struct{}, intermediateStorageNodes bool, output sdtypes.StateNodeSink) (AccountMap, error) {
-	diffAccountAtA := make(AccountMap)
-	it, _ := trie.NewDifferenceIterator(iters.newer, iters.older)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			// map all different accounts at A to their leafkey
-			var account types.StateAccount
-			if err := rlp.DecodeBytes(nodeElements[1].([]byte), &account); err != nil {
-				return nil, fmt.Errorf("error decoding account for leaf node at path %x nerror: %v", node.Path, err)
-			}
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if isWatchedAddress(watchedAddressesLeafKeys, leafKey) {
-				diffAccountAtA[common.Bytes2Hex(leafKey)] = accountWrapper{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-					LeafKey:   leafKey,
-					Account:   &account,
-				}
-				// if this node's path did not show up in diffPathsAtB
-				// that means the node at this path was deleted (or moved) in B
-				if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-					var diff sdtypes.StateNode
-					// if this node's leaf key also did not show up in diffAccountsAtB
-					// that means the node was deleted
-					// in that case, emit an empty "removed" diff state node
-					// include empty "removed" diff storage nodes for all the storage slots
-					if _, ok := diffAccountsAtB[common.Bytes2Hex(leafKey)]; !ok {
-						diff = sdtypes.StateNode{
-							NodeType:  sdtypes.Removed,
-							Path:      node.Path,
-							LeafKey:   leafKey,
-							NodeValue: []byte{},
-						}
-
-						var storageDiffs []sdtypes.StorageNode
-						err := sdb.buildRemovedAccountStorageNodes(account.Root, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-						if err != nil {
-							return nil, fmt.Errorf("failed building storage diffs for removed node %x\r\nerror: %v", node.Path, err)
-						}
-						diff.StorageNodes = storageDiffs
-					} else {
-						// emit an empty "removed" diff with empty leaf key if the account was moved
-						diff = sdtypes.StateNode{
-							NodeType:  sdtypes.Removed,
-							Path:      node.Path,
-							NodeValue: []byte{},
-						}
-					}
-
-					if err := output(diff); err != nil {
-						return nil, err
-					}
-				}
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted (or moved) in B
-			// emit an empty "removed" diff to signify as such
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				if err := output(sdtypes.StateNode{
-					Path:      node.Path,
-					NodeValue: []byte{},
-					NodeType:  sdtypes.Removed,
-				}); err != nil {
-					return nil, err
-				}
-			}
-			// fall through, we did everything we need to do with these node types
-		default:
-			return nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return diffAccountAtA, it.Error()
-}
-
-// buildAccountUpdates uses the account diffs maps for A => B and B => A and the known intersection of their leafkeys
-// to generate the statediff node objects for all of the accounts that existed at both A and B but in different states
-// needs to be called before building account creations and deletions as this mutates
-// those account maps to remove the accounts which were updated
-func (sdb *builder) buildAccountUpdates(creations, deletions AccountMap, updatedKeys []string, intermediateStorageNodes bool, output sdtypes.StateNodeSink) error {
-	var err error
-	for _, key := range updatedKeys {
-		createdAcc := creations[key]
-		deletedAcc := deletions[key]
-		var storageDiffs []sdtypes.StorageNode
-		if deletedAcc.Account != nil && createdAcc.Account != nil {
-			oldSR := deletedAcc.Account.Root
-			newSR := createdAcc.Account.Root
-			err = sdb.buildStorageNodesIncremental(oldSR, newSR, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-			if err != nil {
-				return fmt.Errorf("failed building incremental storage diffs for account with leafkey %s\r\nerror: %v", key, err)
-			}
-		}
-		if err = output(sdtypes.StateNode{
-			NodeType:     createdAcc.NodeType,
-			Path:         createdAcc.Path,
-			NodeValue:    createdAcc.NodeValue,
-			LeafKey:      createdAcc.LeafKey,
-			StorageNodes: storageDiffs,
-		}); err != nil {
-			return err
-		}
-		delete(creations, key)
-		delete(deletions, key)
-	}
-
-	return nil
-}
-
-// buildAccountCreations returns the statediff node objects for all the accounts that exist at B but not at A
-// it also returns the code and codehash for created contract accounts
-func (sdb *builder) buildAccountCreations(accounts AccountMap, intermediateStorageNodes bool, output sdtypes.StateNodeSink, codeOutput sdtypes.CodeSink) error {
-	for _, val := range accounts {
-		diff := sdtypes.StateNode{
-			NodeType:  val.NodeType,
-			Path:      val.Path,
-			LeafKey:   val.LeafKey,
-			NodeValue: val.NodeValue,
-		}
-		if !bytes.Equal(val.Account.CodeHash, nullCodeHash) {
-			// For contract creations, any storage node contained is a diff
-			var storageDiffs []sdtypes.StorageNode
-			err := sdb.buildStorageNodesEventual(val.Account.Root, intermediateStorageNodes, storageNodeAppender(&storageDiffs))
-			if err != nil {
-				return fmt.Errorf("failed building eventual storage diffs for node %x\r\nerror: %v", val.Path, err)
-			}
-			diff.StorageNodes = storageDiffs
-			// emit codehash => code mappings for code
-			codeHash := common.BytesToHash(val.Account.CodeHash)
-			code, err := sdb.stateCache.ContractCode(common.Hash{}, codeHash)
-			if err != nil {
-				return fmt.Errorf("failed to retrieve code for codehash %s\r\n error: %v", codeHash.String(), err)
-			}
-			if err := codeOutput(sdtypes.CodeAndCodeHash{
-				Hash: codeHash,
-				Code: code,
-			}); err != nil {
-				return err
-			}
-		}
-		if err := output(diff); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-// buildStorageNodesEventual builds the storage diff node objects for a created account
-// i.e. it returns all the storage nodes at this state, since there is no previous state
-func (sdb *builder) buildStorageNodesEventual(sr common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(sr.Bytes(), emptyContractRoot.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Root For Eventual Diff", "root", sr.Hex())
-	sTrie, err := sdb.stateCache.OpenTrie(sr)
-	if err != nil {
-		log.Info("error in build storage diff eventual", "error", err)
-		return err
-	}
-	it := sTrie.NodeIterator(make([]byte, 0))
-	err = sdb.buildStorageNodesFromTrie(it, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// buildStorageNodesFromTrie returns all the storage diff node objects in the provided node iterator
-// if any storage keys are provided it will only return those leaf nodes
-// including intermediate nodes can be turned on or off
-func (sdb *builder) buildStorageNodesFromTrie(it trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if err := output(sdtypes.StorageNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-			}); err != nil {
-				return err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-				}); err != nil {
-					return err
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// buildRemovedAccountStorageNodes builds the "removed" diffs for all the storage nodes for a destroyed account
-func (sdb *builder) buildRemovedAccountStorageNodes(sr common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(sr.Bytes(), emptyContractRoot.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Root For Removed Diffs", "root", sr.Hex())
-	sTrie, err := sdb.stateCache.OpenTrie(sr)
-	if err != nil {
-		log.Info("error in build removed account storage diffs", "error", err)
-		return err
-	}
-	it := sTrie.NodeIterator(make([]byte, 0))
-	err = sdb.buildRemovedStorageNodesFromTrie(it, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-// buildRemovedStorageNodesFromTrie returns diffs for all the storage nodes in the provided node interator
-// including intermediate nodes can be turned on or off
-func (sdb *builder) buildRemovedStorageNodesFromTrie(it trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			if err := output(sdtypes.StorageNode{
-				NodeType:  sdtypes.Removed,
-				Path:      node.Path,
-				NodeValue: []byte{},
-				LeafKey:   leafKey,
-			}); err != nil {
-				return err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  sdtypes.Removed,
-					Path:      node.Path,
-					NodeValue: []byte{},
-				}); err != nil {
-					return err
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// buildStorageNodesIncremental builds the storage diff node objects for all nodes that exist in a different state at B than A
-func (sdb *builder) buildStorageNodesIncremental(oldSR common.Hash, newSR common.Hash, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	if bytes.Equal(newSR.Bytes(), oldSR.Bytes()) {
-		return nil
-	}
-	log.Debug("Storage Roots for Incremental Diff", "old", oldSR.Hex(), "new", newSR.Hex())
-	oldTrie, err := sdb.stateCache.OpenTrie(oldSR)
-	if err != nil {
-		return err
-	}
-	newTrie, err := sdb.stateCache.OpenTrie(newSR)
-	if err != nil {
-		return err
-	}
-
-	diffSlotsAtB, diffPathsAtB, err := sdb.createdAndUpdatedStorage(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}), intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	err = sdb.deletedOrUpdatedStorage(oldTrie.NodeIterator([]byte{}), newTrie.NodeIterator([]byte{}), diffSlotsAtB, diffPathsAtB, intermediateNodes, output)
-	if err != nil {
-		return err
-	}
-	return nil
-}
-
-func (sdb *builder) createdAndUpdatedStorage(a, b trie.NodeIterator, intermediateNodes bool, output sdtypes.StorageNodeSink) (map[string]bool, map[string]bool, error) {
-	diffPathsAtB := make(map[string]bool)
-	diffSlotsAtB := make(map[string]bool)
-	it, _ := trie.NewDifferenceIterator(a, b)
-	for it.Next(true) {
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := resolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return nil, nil, err
-		}
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-			diffSlotsAtB[common.Bytes2Hex(leafKey)] = true
-			if err := output(sdtypes.StorageNode{
-				NodeType:  node.NodeType,
-				Path:      node.Path,
-				NodeValue: node.NodeValue,
-				LeafKey:   leafKey,
-			}); err != nil {
-				return nil, nil, err
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			if intermediateNodes {
-				if err := output(sdtypes.StorageNode{
-					NodeType:  node.NodeType,
-					Path:      node.Path,
-					NodeValue: node.NodeValue,
-				}); err != nil {
-					return nil, nil, err
-				}
-			}
-		default:
-			return nil, nil, fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-		diffPathsAtB[common.Bytes2Hex(node.Path)] = true
-	}
-	return diffSlotsAtB, diffPathsAtB, it.Error()
-}
-
-func (sdb *builder) deletedOrUpdatedStorage(a, b trie.NodeIterator, diffSlotsAtB, diffPathsAtB map[string]bool, intermediateNodes bool, output sdtypes.StorageNodeSink) error {
-	it, _ := trie.NewDifferenceIterator(b, a)
-	for it.Next(true) {
-		// skip value nodes
-		if it.Leaf() || bytes.Equal(nullHashBytes, it.Hash().Bytes()) {
-			continue
-		}
-		node, nodeElements, err := sdtrie.ResolveNode(it, sdb.stateCache.TrieDB())
-		if err != nil {
-			return err
-		}
-
-		switch node.NodeType {
-		case sdtypes.Leaf:
-			partialPath := trie.CompactToHex(nodeElements[0].([]byte))
-			valueNodePath := append(node.Path, partialPath...)
-			encodedPath := trie.HexToCompact(valueNodePath)
-			leafKey := encodedPath[1:]
-
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted (or moved) in B
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				// if this node's leaf key also did not show up in diffSlotsAtB
-				// that means the node was deleted
-				// in that case, emit an empty "removed" diff storage node
-				if _, ok := diffSlotsAtB[common.Bytes2Hex(leafKey)]; !ok {
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-						LeafKey:   leafKey,
-					}); err != nil {
-						return err
-					}
-				} else {
-					// emit an empty "removed" diff with empty leaf key if the account was moved
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-					}); err != nil {
-						return err
-					}
-				}
-			}
-		case sdtypes.Extension, sdtypes.Branch:
-			// if this node's path did not show up in diffPathsAtB
-			// that means the node at this path was deleted in B
-			// in that case, emit an empty "removed" diff storage node
-			if _, ok := diffPathsAtB[common.Bytes2Hex(node.Path)]; !ok {
-				if intermediateNodes {
-					if err := output(sdtypes.StorageNode{
-						NodeType:  sdtypes.Removed,
-						Path:      node.Path,
-						NodeValue: []byte{},
-					}); err != nil {
-						return err
-					}
-				}
-			}
-		default:
-			return fmt.Errorf("unexpected node type %s", node.NodeType)
-		}
-	}
-	return it.Error()
-}
-
-// isWatchedAddress is used to check if a state account corresponds to one of the addresses the builder is configured to watch
-func isWatchedAddress(watchedAddressesLeafKeys map[common.Hash]struct{}, stateLeafKey []byte) bool {
-	// If we aren't watching any specific addresses, we are watching everything
-	if len(watchedAddressesLeafKeys) == 0 {
-		return true
-	}
-
-	_, ok := watchedAddressesLeafKeys[common.BytesToHash(stateLeafKey)]
-	return ok
-}
-
-// isWatchedStorageKey is used to check if a storage leaf corresponds to one of the storage slots the builder is configured to watch
-func isWatchedStorageKey(watchedKeys []common.Hash, storageLeafKey []byte) bool {
-	// If we aren't watching any specific addresses, we are watching everything
-	if len(watchedKeys) == 0 {
-		return true
-	}
-	for _, hashKey := range watchedKeys {
-		if bytes.Equal(hashKey.Bytes(), storageLeafKey) {
-			return true
-		}
-	}
-	return false
-}
--- a/pkg/builder_test.go
+++ b/pkg/builder_test.go
@ -26,20 +26,19 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/ethereum/go-ethereum/statediff"
+	sd "github.com/ethereum/go-ethereum/statediff"
 	"github.com/ethereum/go-ethereum/statediff/test_helpers"
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"

-	pkg "github.com/vulcanize/eth-statediff-service/pkg"
+	pkg "github.com/cerc-io/eth-statediff-service/pkg"
 )

-// TODO: add test that filters on address
 var (
 	contractLeafKey                                        []byte
 	emptyDiffs                                             = make([]sdtypes.StateNode, 0)
 	emptyStorage                                           = make([]sdtypes.StorageNode, 0)
 	block0, block1, block2, block3, block4, block5, block6 *types.Block
-	builder                                                pkg.Builder
+	builder                                                sd.Builder
 	miningReward                                           = int64(2000000000000000000)
 	minerAddress                                           = common.HexToAddress("0x0")
 	minerLeafKey                                           = test_helpers.AddressToLeafKey(minerAddress)
@ -487,16 +486,16 @@ func TestBuilder(t *testing.T) {
 	block1 = blocks[0]
 	block2 = blocks[1]
 	block3 = blocks[2]
-	params := statediff.Params{}
+	params := sd.Params{}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -511,7 +510,7 @@ func TestBuilder(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -534,7 +533,7 @@ func TestBuilder(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@ -573,7 +572,7 @@ func TestBuilder(t *testing.T) {
 			// 1000 transferred from testBankAddress to account1Addr
 			// 1000 transferred from account1Addr to account2Addr
 			// account1addr creates a new contract
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@ -644,7 +643,7 @@ func TestBuilder(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@ -721,19 +720,19 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 	block2 = blocks[1]
 	block3 = blocks[2]
 	blocks = append([]*types.Block{block0}, blocks...)
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -748,7 +747,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -771,7 +770,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@ -816,7 +815,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 			// 1000 transferred from testBankAddress to account1Addr
 			// 1000 transferred from account1Addr to account2Addr
 			// account1addr creates a new contract
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@ -898,7 +897,7 @@ func TestBuilderWithIntermediateNodes(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@ -999,19 +998,21 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 	block1 = blocks[0]
 	block2 = blocks[1]
 	block3 = blocks[2]
-	params := statediff.Params{
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
 		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testEmptyDiff",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -1026,7 +1027,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 		{
 			"testBlock0",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: test_helpers.NullHash,
 				NewStateRoot: block0.Root(),
 				BlockNumber:  block0.Number(),
@ -1041,7 +1042,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 		{
 			"testBlock1",
 			//10000 transferred from testBankAddress to account1Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@ -1051,6 +1052,12 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block1.Number(),
 				BlockHash:   block1.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block1BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0e'},
 						NodeType:     sdtypes.Leaf,
@ -1065,7 +1072,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 			"testBlock2",
 			//1000 transferred from testBankAddress to account1Addr
 			//1000 transferred from account1Addr to account2Addr
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@ -1075,12 +1082,23 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block2.Number(),
 				BlockHash:   block2.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block2BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock2LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block2StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x02'},
 								NodeType:  sdtypes.Leaf,
@ -1115,7 +1133,7 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 			"testBlock3",
 			//the contract's storage is changed
 			//and the block is mined by account 2
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block2.Root(),
 				NewStateRoot: block3.Root(),
 				BlockNumber:  block3.Number(),
@ -1125,12 +1143,23 @@ func TestBuilderWithWatchedAddressList(t *testing.T) {
 				BlockNumber: block3.Number(),
 				BlockHash:   block3.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block3BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock3LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block3StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x0c'},
 								NodeType:  sdtypes.Leaf,
@ -1177,20 +1206,20 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		// blocks 0-3 are the same as in TestBuilderWithIntermediateNodes
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@ -1256,7 +1285,7 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@ -1316,7 +1345,7 @@ func TestBuilderWithRemovedAccountAndStorage(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@ -1412,20 +1441,20 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   false,
 		IntermediateStorageNodes: false,
 	}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		// blocks 0-3 are the same as in TestBuilderWithIntermediateNodes
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@ -1480,7 +1509,7 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@ -1529,7 +1558,7 @@ func TestBuilderWithRemovedAccountAndStorageWithoutIntermediateNodes(t *testing.
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@ -1611,19 +1640,21 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
 		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.Account2Addr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@ -1633,6 +1664,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block4.Number(),
 				BlockHash:   block4.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block4BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0c'},
 						NodeType:     sdtypes.Leaf,
@ -1645,7 +1682,7 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@ -1655,6 +1692,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block5.Number(),
 				BlockHash:   block5.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block5BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0e'},
 						NodeType:     sdtypes.Leaf,
@ -1667,7 +1710,7 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@ -1677,6 +1720,12 @@ func TestBuilderWithRemovedNonWatchedAccount(t *testing.T) {
 				BlockNumber: block6.Number(),
 				BlockHash:   block6.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block6BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:         []byte{'\x0c'},
 						NodeType:     sdtypes.Leaf,
@ -1729,19 +1778,21 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 	block4 = blocks[3]
 	block5 = blocks[4]
 	block6 = blocks[5]
-	params := statediff.Params{
+	params := sd.Params{
+		IntermediateStateNodes:   true,
+		IntermediateStorageNodes: true,
 		WatchedAddresses:         []common.Address{test_helpers.Account1Addr, test_helpers.ContractAddr},
 	}
-	params.ComputeWatchedAddressesLeafKeys()
+	params.ComputeWatchedAddressesLeafPaths()

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock4",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block3.Root(),
 				NewStateRoot: block4.Root(),
 				BlockNumber:  block4.Number(),
@ -1751,12 +1802,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block4.Number(),
 				BlockHash:   block4.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block4BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock4LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block4StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x04'},
 								NodeType:  sdtypes.Leaf,
@ -1782,7 +1844,7 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock5",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block4.Root(),
 				NewStateRoot: block5.Root(),
 				BlockNumber:  block5.Number(),
@ -1792,12 +1854,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block5.Number(),
 				BlockHash:   block5.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block5BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Leaf,
 						LeafKey:   contractLeafKey,
 						NodeValue: contractAccountAtBlock5LeafNode,
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Branch,
+								NodeValue: block5StorageBranchRootNode,
+							},
 							{
 								Path:      []byte{'\x0c'},
 								NodeType:  sdtypes.Leaf,
@ -1824,7 +1897,7 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 		},
 		{
 			"testBlock6",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block5.Root(),
 				NewStateRoot: block6.Root(),
 				BlockNumber:  block6.Number(),
@ -1834,12 +1907,23 @@ func TestBuilderWithRemovedWatchedAccount(t *testing.T) {
 				BlockNumber: block6.Number(),
 				BlockHash:   block6.Hash(),
 				Nodes: []sdtypes.StateNode{
+					{
+						Path:         []byte{},
+						NodeType:     sdtypes.Branch,
+						NodeValue:    block6BranchRootNode,
+						StorageNodes: emptyStorage,
+					},
 					{
 						Path:      []byte{'\x06'},
 						NodeType:  sdtypes.Removed,
 						LeafKey:   contractLeafKey,
 						NodeValue: []byte{},
 						StorageNodes: []sdtypes.StorageNode{
+							{
+								Path:      []byte{},
+								NodeType:  sdtypes.Removed,
+								NodeValue: []byte{},
+							},
 							{
 								Path:      []byte{'\x02'},
 								NodeType:  sdtypes.Removed,
@ -1979,19 +2063,19 @@ func TestBuilderWithMovedAccount(t *testing.T) {
 	block0 = test_helpers.Genesis
 	block1 = blocks[0]
 	block2 = blocks[1]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   true,
 		IntermediateStorageNodes: true,
 	}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock1",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@ -2050,7 +2134,7 @@ func TestBuilderWithMovedAccount(t *testing.T) {
 		},
 		{
 			"testBlock2",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
@ -2131,19 +2215,19 @@ func TestBuilderWithMovedAccountOnlyLeafs(t *testing.T) {
 	block0 = test_helpers.Genesis
 	block1 = blocks[0]
 	block2 = blocks[1]
-	params := statediff.Params{
+	params := sd.Params{
 		IntermediateStateNodes:   false,
 		IntermediateStorageNodes: false,
 	}

 	var tests = []struct {
 		name              string
-		startingArguments statediff.Args
+		startingArguments sd.Args
 		expected          *sdtypes.StateObject
 	}{
 		{
 			"testBlock1",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block0.Root(),
 				NewStateRoot: block1.Root(),
 				BlockNumber:  block1.Number(),
@ -2191,7 +2275,7 @@ func TestBuilderWithMovedAccountOnlyLeafs(t *testing.T) {
 		},
 		{
 			"testBlock2",
-			statediff.Args{
+			sd.Args{
 				OldStateRoot: block1.Root(),
 				NewStateRoot: block2.Root(),
 				BlockNumber:  block2.Number(),
--- a/pkg/prom/db_stats_collector.go
+++ b/pkg/prom/db_stats_collector.go
@ -17,9 +17,9 @@
 package prom

 import (
-	"database/sql"
-
 	"github.com/prometheus/client_golang/prometheus"
+
+	dbmetrics "github.com/ethereum/go-ethereum/statediff/indexer/database/metrics"
 )

 const (
@ -29,7 +29,7 @@ const (

 // DBStatsGetter is an interface that gets sql.DBStats.
 type DBStatsGetter interface {
-	Stats() sql.DBStats
+	Stats() dbmetrics.DbStats
 }

 // DBStatsCollector implements the prometheus.Collector interface.
@ -122,41 +122,41 @@ func (c DBStatsCollector) Collect(ch chan<- prometheus.Metric) {
 	ch <- prometheus.MustNewConstMetric(
 		c.maxOpenDesc,
 		prometheus.GaugeValue,
-		float64(stats.MaxOpenConnections),
+		float64(stats.MaxOpen()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.openDesc,
 		prometheus.GaugeValue,
-		float64(stats.OpenConnections),
+		float64(stats.Open()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.inUseDesc,
 		prometheus.GaugeValue,
-		float64(stats.InUse),
+		float64(stats.InUse()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.idleDesc,
 		prometheus.GaugeValue,
-		float64(stats.Idle),
+		float64(stats.Idle()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.waitedForDesc,
 		prometheus.CounterValue,
-		float64(stats.WaitCount),
+		float64(stats.WaitCount()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.blockedSecondsDesc,
 		prometheus.CounterValue,
-		stats.WaitDuration.Seconds(),
+		stats.WaitDuration().Seconds(),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.closedMaxIdleDesc,
 		prometheus.CounterValue,
-		float64(stats.MaxIdleClosed),
+		float64(stats.MaxIdleClosed()),
 	)
 	ch <- prometheus.MustNewConstMetric(
 		c.closedMaxLifetimeDesc,
 		prometheus.CounterValue,
-		float64(stats.MaxLifetimeClosed),
+		float64(stats.MaxLifetimeClosed()),
 	)
 }
--- a/pkg/prom/prom.go
+++ b/pkg/prom/prom.go
@ -19,7 +19,6 @@ package prom
 import (
 	"time"

-	"github.com/jmoiron/sqlx"
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promauto"
 )
@ -123,7 +122,7 @@ func Init() {
 }

 // RegisterDBCollector create metric collector for given connection
-func RegisterDBCollector(name string, db *sqlx.DB) {
+func RegisterDBCollector(name string, db DBStatsGetter) {
 	if metrics {
 		prometheus.Register(NewDBStatsCollector(name, db))
 	}
--- a/pkg/reader.go
+++ b/pkg/reader.go
@ -16,9 +16,11 @@
 package statediff

 import (
+	"errors"
 	"fmt"
 	"math/big"

+	"github.com/cerc-io/leveldb-ethdb-rpc/pkg/client"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/state"
@ -26,7 +28,6 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/params"
 	"github.com/ethereum/go-ethereum/trie"
-	"github.com/vulcanize/leveldb-ethdb-rpc/pkg/client"
 )

 // Reader interface required by the statediffing service
@ -36,6 +37,7 @@ type Reader interface {
 	GetReceiptsByHash(hash common.Hash) (types.Receipts, error)
 	GetTdByHash(hash common.Hash) (*big.Int, error)
 	StateDB() state.Database
+	GetLatestHeader() (*types.Header, error)
 }

 // LvlDBReader exposes the necessary Reader methods on lvldb
@ -60,7 +62,8 @@ func NewLvlDBReader(conf LvLDBReaderConfig) (*LvlDBReader, error) {
 	var err error

 	if conf.Mode == "local" {
-		edb, err = rawdb.NewLevelDBDatabaseWithFreezer(conf.Path, conf.DBCacheSize, 256, conf.AncientPath, "eth-statediff-service", true)
+		kvdb, _ := rawdb.NewLevelDBDatabase(conf.Path, conf.DBCacheSize, 256, "eth-statediff-service", true)
+		edb, err = rawdb.NewDatabaseWithFreezer(kvdb, conf.AncientPath, "eth-statediff-service", true)
 	}

 	if conf.Mode == "remote" {
@ -129,3 +132,12 @@ func (ldr *LvlDBReader) GetTdByHash(hash common.Hash) (*big.Int, error) {
 func (ldr *LvlDBReader) StateDB() state.Database {
 	return ldr.stateDB
 }
+
+// GetLatestHeader gets the latest header from the levelDB
+func (ldr *LvlDBReader) GetLatestHeader() (*types.Header, error) {
+	header := rawdb.ReadHeadHeader(ldr.ethDB)
+	if header == nil {
+		return nil, errors.New("unable to read head header")
+	}
+	return header, nil
+}
--- a/pkg/rpc/http.go
+++ b/pkg/rpc/http.go
@ -24,14 +24,14 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	log "github.com/sirupsen/logrus"

-	"github.com/vulcanize/eth-statediff-service/pkg/prom"
+	"github.com/cerc-io/eth-statediff-service/pkg/prom"
 )

 // StartHTTPEndpoint starts the HTTP RPC endpoint, configured with cors/vhosts/modules.
 func StartHTTPEndpoint(endpoint string, apis []rpc.API, modules []string, cors []string, vhosts []string, timeouts rpc.HTTPTimeouts) (*rpc.Server, error) {

 	srv := rpc.NewServer()
-	err := node.RegisterApis(apis, modules, srv, false)
+	err := node.RegisterApis(apis, modules, srv)
 	if err != nil {
 		utils.Fatalf("Could not register HTTP API: %w", err)
 	}
--- a/pkg/rpc/ipc.go
+++ b/pkg/rpc/ipc.go
@ -26,7 +26,7 @@ import (
 	"github.com/ethereum/go-ethereum/rpc"
 	log "github.com/sirupsen/logrus"

-	"github.com/vulcanize/eth-statediff-service/pkg/prom"
+	"github.com/cerc-io/eth-statediff-service/pkg/prom"
 )

 var (
--- a/pkg/service.go
+++ b/pkg/service.go
@ -33,7 +33,7 @@ import (
 	sdtypes "github.com/ethereum/go-ethereum/statediff/types"
 	"github.com/sirupsen/logrus"

-	"github.com/vulcanize/eth-statediff-service/pkg/prom"
+	"github.com/cerc-io/eth-statediff-service/pkg/prom"
 )

 const defaultQueueSize = 1024
@ -48,7 +48,7 @@ type StateDiffService interface {
 	// Loop is the main event loop for processing state diffs
 	Loop(wg *sync.WaitGroup) error
 	// Run is a one-off command to run on a predefined set of ranges
-	Run(ranges []RangeRequest) error
+	Run(ranges []RangeRequest, parallel bool) error
 	// StateDiffAt method to get state diff object at specific block
 	StateDiffAt(blockNumber uint64, params sd.Params) (*sd.Payload, error)
 	// StateDiffFor method to get state diff object at specific block
@ -66,7 +66,7 @@ type StateDiffService interface {
 // Service is the underlying struct for the state diffing service
 type Service struct {
 	// Used to build the state diff objects
-	Builder Builder
+	Builder sd.Builder
 	// Used to read data from LevelDB
 	lvlDBReader Reader
 	// Used to signal shutdown of the service
@ -117,19 +117,82 @@ func (sds *Service) APIs() []rpc.API {
 	}
 }

+func segmentRange(workers, start, stop uint64, params sd.Params) []RangeRequest {
+	segmentSize := ((stop - start) + 1) / workers
+	remainder := ((stop - start) + 1) % workers
+	numOfSegments := workers
+	if remainder > 0 {
+		numOfSegments++
+	}
+	segments := make([]RangeRequest, numOfSegments)
+	for i := range segments {
+		end := start + segmentSize - 1
+		if end > stop {
+			end = stop
+		}
+		segments[i] = RangeRequest{start, end, params}
+		start = end + 1
+	}
+	return segments
+}
+
 // Run does a one-off processing run on the provided RangeRequests + any pre-runs, exiting afterwards
-func (sds *Service) Run(rngs []RangeRequest) error {
+func (sds *Service) Run(rngs []RangeRequest, parallel bool) error {
 	for _, preRun := range sds.preruns {
-		logrus.Infof("processing prerun range (%d, %d)", preRun.Start, preRun.Stop)
+		// if the rangeSize is smaller than the number of workers
+		// make sure we do synchronous processing to avoid quantization issues
+		rangeSize := (preRun.Stop - preRun.Start) + 1
+		numWorkers := uint64(sds.workers)
+		if rangeSize < numWorkers {
+			parallel = false
+		}
+		if parallel {
+			logrus.Infof("parallel processing prerun range (%d, %d) (%d blocks) divided into %d sized chunks with %d workers", preRun.Start, preRun.Stop,
+				rangeSize, rangeSize/numWorkers, numWorkers)
+			workChan := make(chan RangeRequest)
+			quitChan := make(chan struct{})
+			// spin up numWorkers number of worker goroutines
+			wg := new(sync.WaitGroup)
+			for i := 0; i < int(numWorkers); i++ {
+				wg.Add(1)
+				go func(id int) {
+					defer wg.Done()
+					for {
+						select {
+						case workerSegment := <-workChan:
+							for j := workerSegment.Start; j <= workerSegment.Stop; j++ {
+								if err := sds.WriteStateDiffAt(j, workerSegment.Params); err != nil {
+									logrus.Errorf("error writing statediff at height %d in range (%d, %d) : %v", id, workerSegment.Start, workerSegment.Stop, err)
+								}
+							}
+							logrus.Infof("prerun worker %d finished processing range (%d, %d)", id, workerSegment.Start, workerSegment.Stop)
+						case <-quitChan:
+							return
+						}
+					}
+				}(i)
+			}
+			// break range up into segments
+			segments := segmentRange(numWorkers, preRun.Start, preRun.Stop, preRun.Params)
+			// send the segments to the work channel
+			for _, segment := range segments {
+				workChan <- segment
+			}
+			close(quitChan)
+			wg.Wait()
+		} else {
+			logrus.Infof("sequential processing prerun range (%d, %d)", preRun.Start, preRun.Stop)
 			for i := preRun.Start; i <= preRun.Stop; i++ {
 				if err := sds.WriteStateDiffAt(i, preRun.Params); err != nil {
 					return fmt.Errorf("error writing statediff at height %d in range (%d, %d) : %v", i, preRun.Start, preRun.Stop, err)
 				}
 			}
 		}
+	}
 	sds.preruns = nil
+	// At present this code is never called so we have not written the parallel version:
 	for _, rng := range rngs {
-		logrus.Infof("processing prerun range (%d, %d)", rng.Start, rng.Stop)
+		logrus.Infof("processing requested range (%d, %d)", rng.Start, rng.Stop)
 		for i := rng.Start; i <= rng.Stop; i++ {
 			if err := sds.WriteStateDiffAt(i, rng.Params); err != nil {
 				return fmt.Errorf("error writing statediff at height %d in range (%d, %d) : %v", i, rng.Start, rng.Stop, err)
@ -195,8 +258,8 @@ func (sds *Service) StateDiffAt(blockNumber uint64, params sd.Params) (*sd.Paylo
 	}
 	logrus.Infof("sending state diff at block %d", blockNumber)

-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()

 	if blockNumber == 0 {
 		return sds.processStateDiff(currentBlock, common.Hash{}, params)
@ -217,8 +280,8 @@ func (sds *Service) StateDiffFor(blockHash common.Hash, params sd.Params) (*sd.P
 	}
 	logrus.Infof("sending state diff at block %s", blockHash.Hex())

-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()

 	if currentBlock.NumberU64() == 0 {
 		return sds.processStateDiff(currentBlock, common.Hash{}, params)
@ -290,8 +353,8 @@ func (sds *Service) StateTrieAt(blockNumber uint64, params sd.Params) (*sd.Paylo
 	}
 	logrus.Infof("sending state trie at block %d", blockNumber)

-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()

 	return sds.processStateTrie(currentBlock, params)
 }
@ -333,8 +396,8 @@ func (sds *Service) WriteStateDiffAt(blockNumber uint64, params sd.Params) error
 		return err
 	}

-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()

 	parentRoot := common.Hash{}
 	if blockNumber != 0 {
@ -358,8 +421,8 @@ func (sds *Service) WriteStateDiffFor(blockHash common.Hash, params sd.Params) e
 		return err
 	}

-	// compute leaf keys of watched addresses in the params
-	params.ComputeWatchedAddressesLeafKeys()
+	// compute leaf paths of watched addresses in the params
+	params.ComputeWatchedAddressesLeafPaths()

 	parentRoot := common.Hash{}
 	if currentBlock.NumberU64() != 0 {
@ -406,7 +469,7 @@ func (sds *Service) writeStateDiff(block *types.Block, parentRoot common.Hash, p
 	}
 	prom.SetTimeMetric(prom.T_BLOCK_PROCESSING, time.Now().Sub(t))
 	t = time.Now()
-	err = sds.Builder.WriteStateDiffObject(sdtypes.StateRoots{
+	err = sds.Builder.WriteStateDiffObject(sd.Args{
 		NewStateRoot: block.Root(),
 		OldStateRoot: parentRoot,
 	}, params, output, codeOutput)
--- a/scripts/.env.example
+++ b/scripts/.env.example
@ -0,0 +1,28 @@
+# Used by the script to count rows (count-lines.sh)
+COUNT_LINES_LOG=./count-lines.log
+COUNT_LINES_INPUT_DIR=~/eth-statediff-service/output_dir
+COUNT_LINES_OUTPUT_FILE=./output-stats.txt
+
+# Used by the script to dedup output files (dedup.sh)
+DEDUP_LOG=./dedup.log
+DEDUP_INPUT_DIR=~/eth-statediff-service/output_dir
+DEDUP_OUTPUT_DIR=~/eth-statediff-service/dedup_dir
+DEDUP_SORT_DIR=./.sort
+
+# Used by the script to perform column checks (check-columns.sh)
+CHECK_COLUMNS_LOG=./check-columns.log
+CHECK_COLUMNS_INPUT_DIR=~/eth-statediff-service/output_dir
+CHECK_COLUMNS_INPUT_DEDUP_DIR=~/eth-statediff-service/dedup_dir
+CHECK_COLUMNS_OUTPUT_DIR=./check-columns
+
+# Used by the script to import data (timescaledb-import.sh)
+IMPORT_LOG=./tsdb-import.log
+IMPORT_INPUT_DIR=~/eth-statediff-service/output_dir
+IMPORT_INPUT_DEDUP_DIR=~/eth-statediff-service/dedup_dir
+TIMESCALEDB_WORKERS=8
+
+DATABASE_USER=vdbm
+DATABASE_HOSTNAME=localhost
+DATABASE_PORT=8077
+DATABASE_NAME=vulcanize_testing
+DATABASE_PASSWORD=password
--- a/scripts/check-columns.sh
+++ b/scripts/check-columns.sh
@ -0,0 +1,58 @@
+#!/bin/bash
+
+# Requires:
+# CHECK_COLUMNS_LOG
+# CHECK_COLUMNS_INPUT_DIR
+# CHECK_COLUMNS_INPUT_DEDUP_DIR
+# CHECK_COLUMNS_OUTPUT_DIR
+
+# env file arg
+ENV=$1
+echo "Using env file: ${ENV}"
+
+# read env file
+export $(grep -v '^#' ${ENV} | xargs)
+
+# redirect stdout/stderr to a file
+exec >"${CHECK_COLUMNS_LOG}" 2>&1
+
+# create output dir if not exists
+mkdir -p "${CHECK_COLUMNS_OUTPUT_DIR}"
+
+start_timestamp=$(date +%s)
+
+declare -A expected_columns
+expected_columns=(
+  ["public.nodes"]="5"
+  ["public.blocks"]="3"
+  # ["eth.access_list_elements"]="?" # skipping as values include ','
+  ["eth.log_cids"]="12"
+  ["eth.state_accounts"]="7"
+  ["eth.storage_cids"]="9"
+  ["eth.uncle_cids"]="7"
+  ["eth.header_cids"]="16"
+  ["eth.receipt_cids"]="10"
+  ["eth.state_cids"]="8"
+  ["eth.transaction_cids"]="11"
+)
+
+for table_name in "${!expected_columns[@]}";
+do
+  if [ "${table_name}" = "public.blocks" ];
+  then
+    command="$(dirname "$0")/find-bad-rows.sh -i ${CHECK_COLUMNS_INPUT_DEDUP_DIR}/deduped-${table_name}.csv -c ${expected_columns[${table_name}]} -d true -o ${CHECK_COLUMNS_OUTPUT_DIR}/${table_name}.txt"
+  else
+    command="$(dirname "$0")/find-bad-rows.sh -i ${CHECK_COLUMNS_INPUT_DIR}/${table_name}.csv -c ${expected_columns[${table_name}]} -d true -o ${CHECK_COLUMNS_OUTPUT_DIR}/${table_name}.txt"
+  fi
+
+  echo "${table_name}"
+  echo Start: "$(date)"
+  eval "${command}"
+  echo End: "$(date)"
+  echo Total bad rows: $(wc -l ${CHECK_COLUMNS_OUTPUT_DIR}/${table_name}.txt)
+  echo
+done
+
+difference=$(($(date +%s)-start_timestamp))
+echo Time taken: $((difference/86400)):$(date -d@${difference} -u +%H:%M:%S)
+echo
--- a/scripts/count-lines.sh
+++ b/scripts/count-lines.sh
@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Requires:
+# COUNT_LINES_LOG
+# COUNT_LINES_INPUT_DIR
+# COUNT_LINES_OUTPUT_FILE
+
+# env file arg
+ENV=$1
+echo "Using env file: ${ENV}"
+
+# read env file
+export $(grep -v '^#' ${ENV} | xargs)
+
+# redirect stdout/stderr to a file
+exec >"${COUNT_LINES_LOG}" 2>&1
+
+start_timestamp=$(date +%s)
+
+table_names=(
+  "public.nodes"
+  "public.blocks"
+  "eth.access_list_elements"
+  "eth.log_cids"
+  "eth.state_accounts"
+  "eth.storage_cids"
+  "eth.uncle_cids"
+  "eth.header_cids"
+  "eth.receipt_cids"
+  "eth.state_cids"
+  "eth.transaction_cids"
+)
+
+echo "Row counts:" > "${COUNT_LINES_OUTPUT_FILE}"
+
+for table_name in "${table_names[@]}";
+do
+  echo "${table_name}";
+  echo Start: "$(date)"
+  wc -l "${COUNT_LINES_INPUT_DIR}"/"${table_name}.csv" >> "${COUNT_LINES_OUTPUT_FILE}"
+  echo End: "$(date)"
+  echo
+done
+
+difference=$(($(date +%s)-start_timestamp))
+echo Time taken: $((difference/86400)):$(date -d@${difference} -u +%H:%M:%S)
--- a/scripts/dedup.sh
+++ b/scripts/dedup.sh
@ -0,0 +1,35 @@
+#!/bin/bash
+
+# Requires:
+# DEDUP_LOG
+# DEDUP_INPUT_DIR
+# DEDUP_OUTPUT_DIR
+# DEDUP_SORT_DIR
+
+# env file arg
+ENV=$1
+echo "Using env file: ${ENV}"
+
+# read env file
+export $(grep -v '^#' ${ENV} | xargs)
+
+# redirect stdout/stderr to a file
+exec >"${DEDUP_LOG}" 2>&1
+
+# create output dir if not exists
+mkdir -p "${DEDUP_OUTPUT_DIR}"
+
+start_timestamp=$(date +%s)
+
+echo "public.blocks"
+echo Start: "$(date)"
+sort -T "${DEDUP_SORT_DIR}" -u "${DEDUP_INPUT_DIR}"/public.blocks.csv -o "${DEDUP_OUTPUT_DIR}"/deduped-public.blocks.csv
+echo End: "$(date)"
+echo Total deduped rows: $(wc -l ${DEDUP_OUTPUT_DIR}/deduped-public.blocks.csv)
+echo
+
+difference=$(($(date +%s)-start_timestamp))
+echo Time taken: $((difference/86400)):$(date -d@${difference} -u +%H:%M:%S)
+
+# NOTE: This script currently only dedups public.blocks output file.
+# If the output contains blocks that were statediffed more than once, output files for other tables will have to be deduped as well.
--- a/scripts/find-bad-rows.sh
+++ b/scripts/find-bad-rows.sh
@ -0,0 +1,43 @@
+#!/bin/bash
+
+# flags
+# -i <input-file>:        Input data file path
+# -c <expected-columns>:  Expected number of columns in each row of the input file
+# -o [output-file]:       Output destination file path (default: STDOUT)
+# -d [include-data]:      Whether to include the data row in output (true | false) (default: false)
+
+# eg: ./scripts/find-bad-rows.sh -i eth.state_cids.csv -c 8 -o res.txt -d true
+# output: 1 9 1500000,xxxxxxxx,0x83952d392f9b0059eea94b10d1a095eefb1943ea91595a16c6698757127d4e1c,,
+#         baglacgzasvqcntdahkxhufdnkm7a22s2eetj6mx6nzkarwxtkvy4x3bubdgq,\x0f,0,f,/blocks/,
+#         DMQJKYBGZRQDVLT2CRWVGPQNNJNCCJU7GL7G4VAI3LZVK4OL5Q2ARTI
+
+while getopts i:c:o:d: OPTION
+do
+  case "${OPTION}" in
+    i) inputFile=${OPTARG};;
+    c) expectedColumns=${OPTARG};;
+    o) outputFile=${OPTARG};;
+    d) data=${OPTARG};;
+  esac
+done
+
+timestamp=$(date +%s)
+
+# if data requested, dump row number, number of columns and the row
+if [ "${data}" = true ] ; then
+  if [ -z "${outputFile}" ]; then
+    awk -F"," "NF!=${expectedColumns} {print NR, NF, \$0}" < ${inputFile}
+  else
+    awk -F"," "NF!=${expectedColumns} {print NR, NF, \$0}" < ${inputFile} > ${outputFile}
+  fi
+# else, dump only row number, number of columns
+else
+  if [ -z "${outputFile}" ]; then
+    awk -F"," "NF!=${expectedColumns} {print NR, NF}" < ${inputFile}
+  else
+    awk -F"," "NF!=${expectedColumns} {print NR, NF}" < ${inputFile} > ${outputFile}
+  fi
+fi
+
+difference=$(($(date +%s)-timestamp))
+echo Time taken: $(date -d@${difference} -u +%H:%M:%S)
--- a/scripts/timescaledb-import.sh
+++ b/scripts/timescaledb-import.sh
@ -0,0 +1,75 @@
+#!/bin/bash
+
+# Requires:
+# IMPORT_LOG
+# IMPORT_INPUT_DIR
+# IMPORT_INPUT_DEDUP_DIR
+# TIMESCALEDB_WORKERS
+# DATABASE_USER
+# DATABASE_HOSTNAME
+# DATABASE_PORT
+# DATABASE_NAME
+# DATABASE_PASSWORD
+
+DEFAULT_TIMESCALEDB_WORKERS=8
+
+# env file arg
+ENV=$1
+echo "Using env file: ${ENV}"
+
+# read env file
+export $(grep -v '^#' ${ENV} | xargs)
+
+if [ "$TIMESCALEDB_WORKERS" = "" ]; then
+	TIMESCALEDB_WORKERS=$DEFAULT_TIMESCALEDB_WORKERS
+fi
+
+# redirect stdout/stderr to a file
+exec >"${IMPORT_LOG}" 2>&1
+
+start_timestamp=$(date +%s)
+
+declare -a tables
+# schema-table-copyOptions
+tables=(
+  "public-nodes"
+  "public-blocks"
+  "eth-access_list_elements"
+  "eth-log_cids-FORCE NOT NULL topic0, topic1, topic2, topic3 CSV"
+  "eth-state_accounts"
+  "eth-storage_cids-FORCE NOT NULL storage_leaf_key CSV"
+  "eth-uncle_cids"
+  "eth-header_cids"
+  "eth-receipt_cids-FORCE NOT NULL post_state, contract, contract_hash CSV"
+  "eth-state_cids-FORCE NOT NULL state_leaf_key CSV"
+  "eth-transaction_cids-FORCE NOT NULL dst CSV"
+)
+
+for elem in "${tables[@]}";
+do
+	IFS='-' read -a arr <<< "${elem}"
+
+	if [ "${arr[0]}.${arr[1]}" = "public.blocks" ];
+	then
+		copy_command="timescaledb-parallel-copy --connection \"host=${DATABASE_HOSTNAME} port=${DATABASE_PORT} user=${DATABASE_USER} password=${DATABASE_PASSWORD} sslmode=disable\" --db-name ${DATABASE_NAME} --schema ${arr[0]} --table ${arr[1]} --file ${IMPORT_INPUT_DEDUP_DIR}/deduped-${arr[0]}.${arr[1]}.csv --workers ${TIMESCALEDB_WORKERS} --reporting-period 300s"
+	else
+		copy_command="timescaledb-parallel-copy --connection \"host=${DATABASE_HOSTNAME} port=${DATABASE_PORT} user=${DATABASE_USER} password=${DATABASE_PASSWORD} sslmode=disable\" --db-name ${DATABASE_NAME} --schema ${arr[0]} --table ${arr[1]} --file ${IMPORT_INPUT_DIR}/${arr[0]}.${arr[1]}.csv --workers ${TIMESCALEDB_WORKERS} --reporting-period 300s"
+	fi
+
+	if [ "${arr[2]}" != "" ];
+	then
+		copy_with_options="${copy_command} --copy-options \"${arr[2]}\""
+	else
+		copy_with_options=${copy_command}
+	fi
+
+	echo "${arr[0]}.${arr[1]}"
+	echo Start: "$(date)"
+	eval "${copy_with_options}"
+	echo End: "$(date)"
+	echo
+done
+
+difference=$(($(date +%s)-start_timestamp))
+echo Time taken: $((difference/86400)):$(date -d@${difference} -u +%H:%M:%S)
+echo
Author	SHA1	Message	Date
Ian Norden	18a7f23173	Merge pull request #124 from cerc-io/ian/v4_dev bump leveldb-ethdb-rpc version	2023-03-31 10:25:24 -05:00
i-norden	ef1846f58c	bump leveldb-ethdb-rpc version	2023-03-31 10:17:34 -05:00
Ian Norden	2eaa2c2262	Merge pull request #123 from cerc-io/ian/v4_dev [v4] bump to vdb v4 geth v1.11.5	2023-03-31 09:53:11 -05:00
i-norden	bfb0447710	use internal concurrent iterator pkg	2023-03-31 09:04:54 -05:00
i-norden	2c08f5594c	bump to vdb v4 geth v1.11.5	2023-03-31 09:02:54 -05:00
Ian Norden	253b1087bf	Merge pull request #112 from cerc-io/ian_test_3 Avoid quantization problems during segmentation and use worker chan to spread work across set # of workers	2023-03-20 07:53:09 -05:00
Michael	8a3b6bf2ac	Merge pull request #121 from cerc-io/rebase-1.11.4-wip version update for geth 1.11.4 statediff and container to go 1.19	2023-03-17 14:05:56 -04:00
Michael Shaw	b221bde694	version update for geth 1.11.4 statediff and container to go 1.19	2023-03-17 13:51:46 -04:00
Michael	2c41537636	Merge pull request #120 from cerc-io/rebase-v1.11.2-wip update interface for failing docker build step	2023-03-15 11:18:30 -04:00
Michael Shaw	d83b088c37	update interface for failing docker build step	2023-03-15 01:38:22 -04:00
Michael	aca78f89b7	Merge pull request #118 from cerc-io/rebase-v1.11.2-wip update for interface changes in 1.11.2 geth statediffing 4.3.7	2023-03-14 15:09:38 -04:00
Michael Shaw	1788b899a4	update for interface changes in 1.11.2 geth statediffing 4.3.7	2023-03-13 18:35:54 -04:00
Michael	1fe7a04af0	Merge pull request #116 from cerc-io/v4.1.6-wip dependency updates for geth 1.10.26 and leveldb cerc migraiton	2022-11-08 11:41:19 -05:00
Michael Shaw	68ebdca6f9	dependency updates for geth 1.10.26 and leveldb cerc migraiton	2022-11-08 11:19:27 -05:00
i-norden	5f7915649d	avoid quantization and use worker channel to ensure expected number of workers	2022-10-12 18:39:28 -05:00
Ian Norden	f6df15cb38	Merge pull request #110 from cerc-io/ian_util latest block height util	2022-10-10 18:31:14 -05:00
i-norden	03517a0eb4	add short description for stats command in the readme	2022-10-10 18:24:24 -05:00
i-norden	54205d8787	conform capitalization in logWithCommand logs	2022-10-10 13:44:46 -05:00
i-norden	8d8ff99d19	cmd for checking latest header height/hash; update serve command to report the latest header height/hash	2022-10-10 13:39:06 -05:00
i-norden	3054063942	add method to reader interface for accessing latest header	2022-10-10 13:38:33 -05:00
Michael	54e181ca68	Update manual_publish.yml publish SHA as latest	2022-09-28 17:50:24 -04:00
Michael	269333bb17	Update manual_publish.yml	2022-09-28 17:47:42 -04:00
Michael	db532467cc	Update manual_publish.yml	2022-09-28 17:45:25 -04:00
Michael	ccdf9d91fc	Update manual_publish.yml	2022-09-28 17:43:19 -04:00
Michael	aea3decebf	Update manual_publish.yml	2022-09-28 17:40:14 -04:00
Michael	2db16d69da	Create manual_publish.yml	2022-09-28 17:37:08 -04:00
Michael	e3d694e63c	Merge pull request #106 from cerc-io/geth-1.10.25-wip dependency updates for geth 1.10.25 rebase	2022-09-23 14:25:02 -04:00
Michael Shaw	2c0f3456f5	dependency updates for geth 1.10.25 rebase	2022-09-23 14:17:51 -04:00
David Boreham	46cd8b1834	Merge pull request #103 from cerc-io/dboreham/prerun-workers use workers in prerun mode	2022-09-22 07:37:38 -06:00
David Boreham	c0cd87ba6a	Make doc consistent	2022-09-22 07:26:32 -06:00
prathamesh0	2db235f244	Add helper scripts for processing and importing statediffed data (#105 ) * Add helper scripts for processing and importing statediffed data * Add instructions to use the helper scripts * Update scripts to use arrays * Update README with bad row output example * Remove delimiter option from xargs command	2022-09-22 13:52:47 +05:30
David Boreham	a827c4a36b	Merge branch 'v4' into dboreham/prerun-workers	2022-09-21 14:04:46 -06:00
David Boreham	14b9c169bc	Add viper boiler plate	2022-09-21 14:00:45 -06:00
David Boreham	a2772762e1	Make pprof configurable, remove todos	2022-09-21 13:33:15 -06:00
David Boreham	b1440d9673	Fix off by one error	2022-09-21 13:06:41 -06:00
Michael Shaw	67d8bced4f	one more reference changed to git.vdb.to	2022-09-21 13:27:05 -04:00
Michael Shaw	12f4810ced	missed Makefile update for cerc-io	2022-09-21 11:55:17 -04:00
Michael Shaw	7a8d38c955	indentation problem in yml	2022-09-21 11:24:43 -04:00
Michael Shaw	d09cd0afe6	update tagging and push to git.vdb.to registry	2022-09-21 11:13:23 -04:00
Michael	bcca82eaa3	Cerc refactor (#104 ) * cerc refactor waiting on unpublished dependencies * updated go.mod for published dependencies in cerc-io refactoring	2022-09-20 14:00:10 -04:00
Michael	dad77b561d	Merge pull request #102 from vulcanize/rebase-1.10.23-wip update for geth 1.10.23	2022-09-02 16:16:34 -04:00
Michael Shaw	c939822a95	update for geth 1.10.23	2022-09-02 15:56:56 -04:00
David Boreham	6d103cb1f1	Add some logging	2022-09-02 10:51:13 -06:00
David Boreham	99f84b6fe6	Comment	2022-09-01 23:43:38 -06:00
David Boreham	5b7f5feb1b	Enable pprof	2022-09-01 23:42:55 -06:00
David Boreham	7f8885f044	Add comment	2022-08-31 07:54:16 -06:00
David Boreham	d235f3b84c	Initial version of parallel workers for prerun-only mode	2022-08-30 22:31:54 -06:00
Michael	1fdb8763ac	Merge pull request #101 from vulcanize/geth_1_10_21_wip updates for geth 1.10.21	2022-08-03 10:21:22 -04:00
Michael Shaw	cd5aee30c7	missed go mod tidy	2022-08-03 10:08:01 -04:00
Michael Shaw	040638ca05	updates for geth 1.10.21	2022-08-03 10:03:57 -04:00
Ashwin Phatak	681e656034	Merge pull request #98 from deep-stack/pm-import-instructions Add instructions to import data output in file mode	2022-07-19 15:10:25 +05:30
prathamesh0	85896f91b7	Expose database stats in metrics	2022-07-19 15:00:01 +05:30
prathamesh0	52c7f84432	Update instructions to import data output	2022-07-18 19:14:41 +05:30
prathamesh0	aa6ee578f4	Add instructions to import data output in file mode	2022-07-13 19:33:47 +05:30
prathamesh0	1f898f60c3	Upgrade geth after schema changes (#97 ) * Include intermediate nodes in builder tests for watched addresses * Upgrade geth	2022-07-12 16:38:05 +05:30
nikugogoi	0c56037e1f	Upgrade geth and add params for CSV file mode (#96 ) * Upgrade geth and add params for CSV file mode * Add options for file mode flag * index intermediate nodes when watching addresses	2022-07-01 13:29:48 +05:30
prathamesh0	9aa683442e	Reuse builder from vulcanize-geth (#92 ) * Reuse builder code from vulcanize-geth * Upgrade geth dependency	2022-06-24 14:12:58 +05:30
Abdul Rabbani	adf3dd4b6f	Update CICD pipeline to skip duplicate tests (#95 ) * Update CICD pipeline to skip duplicate tests * fix dependencies * Fix other dep	2022-06-17 09:45:53 -04:00
Abdul Rabbani	5ea4b6766a	Merge pull request #94 from vulcanize/feature/update-geth-v1.10.19 Update geth and check for duplicate jobs in CI	2022-06-17 09:00:19 -04:00
Abdul Rabbani	2c4fd6f099	Update geth and check for duplicate jobs in CI	2022-06-17 08:56:25 -04:00
Ashwin Phatak	f964b53fe3	Merge pull request #91 from vulcanize/ng-update-iterator Update go-eth-state-node-iterator version	2022-06-10 15:27:31 +05:30
nabarun	b8dad6a09b	Update go-eth-state-node-iterator version	2022-06-10 15:02:42 +05:30
Abdul Rabbani	1dc90d0417	Merge pull request #89 from vulcanize/feature/update-go-geth-sharding Feature/update go geth sharding	2022-05-31 13:41:15 -04:00
Abdul Rabbani	784ffb8726	Update geth version	2022-05-31 13:37:35 -04:00
Abdul Rabbani	1ddffe65be	Merge branch 'master' into feature/update-go-geth-sharding	2022-05-31 13:35:11 -04:00
nikugogoi	cdcc3df9f2	Upgrade geth version to v4 (#85 ) * Upgrade geth version to v4 * Upgrade go-eth-state-node-iterator version	2022-05-17 19:22:30 +05:30