diff --git a/api/api_full.go b/api/api_full.go
index 57f7b121a..49878f8d1 100644
--- a/api/api_full.go
+++ b/api/api_full.go
@@ -381,7 +381,7 @@ type MiningBaseInfo struct {
 	MinerPower      types.BigInt
 	NetworkPower    types.BigInt
 	Sectors         []*ChainSectorInfo
-	Worker          address.Address
+	WorkerKey       address.Address
 	SectorSize      abi.SectorSize
 	PrevBeaconEntry types.BeaconEntry
 }
diff --git a/chain/gen/gen.go b/chain/gen/gen.go
index 71a7f3127..3b57b1d88 100644
--- a/chain/gen/gen.go
+++ b/chain/gen/gen.go
@@ -537,7 +537,7 @@ func IsRoundWinner(ctx context.Context, ts *types.TipSet, round abi.ChainEpoch,
 		return nil, xerrors.Errorf("failed to draw randomness: %w", err)
 	}
 
-	vrfout, err := ComputeVRF(ctx, a.WalletSign, mbi.Worker, electionRand)
+	vrfout, err := ComputeVRF(ctx, a.WalletSign, mbi.WorkerKey, electionRand)
 	if err != nil {
 		return nil, xerrors.Errorf("failed to compute VRF: %w", err)
 	}
diff --git a/chain/gen/genesis/miners.go b/chain/gen/genesis/miners.go
index 0946ebe76..a576139d0 100644
--- a/chain/gen/genesis/miners.go
+++ b/chain/gen/genesis/miners.go
@@ -185,11 +185,11 @@ func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sroot cid.Cid
 						RegisteredProof: preseal.ProofType,
 						SectorNumber:    preseal.SectorID,
 						SealedCID:       preseal.CommR,
-						SealRandEpoch:   0,
+						SealRandEpoch:   0, // TODO: REVIEW: Correct?
 						DealIDs:         []abi.DealID{dealIDs[pi]},
 						Expiration:      preseal.Deal.EndEpoch,
 					},
-					ActivationEpoch: 0,
+					ActivationEpoch: 0, // TODO: REVIEW: Correct?
 					DealWeight:      dealWeight,
 				}
 
@@ -200,7 +200,6 @@ func SetupStorageMiners(ctx context.Context, cs *store.ChainStore, sroot cid.Cid
 						return xerrors.Errorf("failed to prove commit: %v", err)
 					}
 
-					panic("assign deadlines")
 					return nil
 				})
 				if err != nil {
diff --git a/chain/stmgr/utils.go b/chain/stmgr/utils.go
index ae3d898e6..56df6f711 100644
--- a/chain/stmgr/utils.go
+++ b/chain/stmgr/utils.go
@@ -417,11 +417,16 @@ func MinerGetBaseInfo(ctx context.Context, sm *StateManager, tsk types.TipSetKey
 		return nil, xerrors.Errorf("failed to get latest beacon entry: %w", err)
 	}
 
+	worker, err := sm.ResolveToKeyAddress(ctx, mas.GetWorker(), ts)
+	if err != nil {
+		return nil, xerrors.Errorf("resolving worker address: %w", err)
+	}
+
 	return &api.MiningBaseInfo{
 		MinerPower:      mpow,
 		NetworkPower:    tpow,
 		Sectors:         provset,
-		Worker:          mas.GetWorker(),
+		WorkerKey:       worker,
 		SectorSize:      mas.Info.SectorSize,
 		PrevBeaconEntry: *prev,
 	}, nil
diff --git a/chain/vm/syscalls.go b/chain/vm/syscalls.go
index eba2660a0..28062a30b 100644
--- a/chain/vm/syscalls.go
+++ b/chain/vm/syscalls.go
@@ -6,6 +6,7 @@ import (
 
 	"github.com/filecoin-project/go-address"
 	"github.com/ipfs/go-cid"
+	"github.com/minio/blake2b-simd"
 	mh "github.com/multiformats/go-multihash"
 	"golang.org/x/xerrors"
 
@@ -46,7 +47,7 @@ func (ss *syscallShim) ComputeUnsealedSectorCID(st abi.RegisteredProof, pieces [
 }
 
 func (ss *syscallShim) HashBlake2b(data []byte) [32]byte {
-	panic("NYI")
+	return blake2b.Sum256(data)
 }
 
 func (ss *syscallShim) VerifyConsensusFault(a, b, extra []byte) (*runtime.ConsensusFault, error) {
diff --git a/storage/wdpost_sched.go b/storage/wdpost_sched.go
index cf972ee17..0a2243462 100644
--- a/storage/wdpost_sched.go
+++ b/storage/wdpost_sched.go
@@ -12,7 +12,6 @@ import (
 	"github.com/filecoin-project/specs-actors/actors/abi"
 	"github.com/filecoin-project/specs-storage/storage"
 
-	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/store"
 	"github.com/filecoin-project/lotus/chain/types"
 )
@@ -56,10 +55,6 @@ func NewWindowedPoStScheduler(api storageMinerApi, sb storage.Prover, actor addr
 	return &WindowPoStScheduler{api: api, prover: sb, actor: actor, worker: worker, proofType: rt}, nil
 }
 
-const ProvingDeadlineEpochs = (30 * 60) / build.BlockDelay
-const ProvingPeriodDeadlines = 48
-const ProvingPeriodEpochs = ProvingDeadlineEpochs * ProvingDeadlineEpochs
-
 type Deadline struct {
 	// ID
 	start abi.ChainEpoch
@@ -223,6 +218,8 @@ func (s *WindowPoStScheduler) abortActivePoSt() {
 }
 
 func (s *WindowPoStScheduler) shouldPost(ctx context.Context, ts *types.TipSet) (bool, *Deadline, error) {
+
+
 	// call getCurrentDeadline, set activeDeadline if needed
 	panic("todo check actor state for post in the deadline")
 	return true, nil, nil