diff --git a/api/api_storage.go b/api/api_storage.go
index 3fa2ab6d0..e01f859cf 100644
--- a/api/api_storage.go
+++ b/api/api_storage.go
@@ -19,7 +19,7 @@ const (
 
 	Unsealed      // sealing / queued
 	PreCommitting // on chain pre-commit
-	PreCommitted  // waiting for seed
+	WaitSeed      // waiting for seed
 	Committing
 	CommitWait // waiting for message to land on chain
 	Proving
@@ -61,7 +61,7 @@ var SectorStates = []string{
 	Packing:              "Packing",
 	Unsealed:             "Unsealed",
 	PreCommitting:        "PreCommitting",
-	PreCommitted:         "PreCommitted",
+	WaitSeed:             "WaitSeed",
 	Committing:           "Committing",
 	CommitWait:           "CommitWait",
 	Proving:              "Proving",
diff --git a/storage/sealing/fsm.go b/storage/sealing/fsm.go
index 5c37020d2..7459b7487 100644
--- a/storage/sealing/fsm.go
+++ b/storage/sealing/fsm.go
@@ -36,10 +36,10 @@ var fsmPlanners = []func(events []statemachine.Event, state *SectorInfo) error{
 		on(SectorSealFailed{}, api.SealFailed),
 	),
 	api.PreCommitting: planOne(
-		on(SectorPreCommitted{}, api.PreCommitted),
+		on(SectorPreCommitted{}, api.WaitSeed),
 		on(SectorPreCommitFailed{}, api.PreCommitFailed),
 	),
-	api.PreCommitted: planOne(
+	api.WaitSeed: planOne(
 		on(SectorSeedReady{}, api.Committing),
 		on(SectorPreCommitFailed{}, api.PreCommitFailed),
 	),
@@ -87,7 +87,7 @@ func (m *Sealing) plan(events []statemachine.Event, state *SectorInfo) (func(sta
 		*   PreCommitting <--> PreCommitFailed
 		|   |                  ^
 		|   v                  |
-		*<- PreCommitted ------/
+		*<- WaitSeed ----------/
 		|   |||
 		|   vvv      v--> SealCommitFailed
 		*<- Committing
@@ -115,8 +115,8 @@ func (m *Sealing) plan(events []statemachine.Event, state *SectorInfo) (func(sta
 		return m.handleUnsealed, nil
 	case api.PreCommitting:
 		return m.handlePreCommitting, nil
-	case api.PreCommitted:
-		return m.handlePreCommitted, nil
+	case api.WaitSeed:
+		return m.handleWaitSeed, nil
 	case api.Committing:
 		return m.handleCommitting, nil
 	case api.CommitWait:
@@ -172,7 +172,7 @@ func planCommitting(events []statemachine.Event, state *SectorInfo) error {
 			e.apply(state)
 			state.State = api.Committing
 			return nil
-		case SectorSealCommitFailed:
+		case SectorComputeProofFailed:
 			state.State = api.SealCommitFailed
 		case SectorSealFailed:
 			state.State = api.CommitFailed
diff --git a/storage/sealing/fsm_events.go b/storage/sealing/fsm_events.go
index 8392d13e7..662379e9a 100644
--- a/storage/sealing/fsm_events.go
+++ b/storage/sealing/fsm_events.go
@@ -96,7 +96,7 @@ func (evt SectorSeedReady) apply(state *SectorInfo) {
 	state.Seed = evt.seed
 }
 
-type SectorSealCommitFailed struct{ error }
+type SectorComputeProofFailed struct{ error }
 type SectorCommitFailed struct{ error }
 type SectorCommitted struct {
 	message cid.Cid
diff --git a/storage/sealing/fsm_test.go b/storage/sealing/fsm_test.go
index a76a547dc..2dada5470 100644
--- a/storage/sealing/fsm_test.go
+++ b/storage/sealing/fsm_test.go
@@ -41,7 +41,7 @@ func TestHappyPath(t *testing.T) {
 	require.Equal(m.t, m.state.State, api.PreCommitting)
 
 	m.planSingle(SectorPreCommitted{})
-	require.Equal(m.t, m.state.State, api.PreCommitted)
+	require.Equal(m.t, m.state.State, api.WaitSeed)
 
 	m.planSingle(SectorSeedReady{})
 	require.Equal(m.t, m.state.State, api.Committing)
@@ -67,7 +67,7 @@ func TestSeedRevert(t *testing.T) {
 	require.Equal(m.t, m.state.State, api.PreCommitting)
 
 	m.planSingle(SectorPreCommitted{})
-	require.Equal(m.t, m.state.State, api.PreCommitted)
+	require.Equal(m.t, m.state.State, api.WaitSeed)
 
 	m.planSingle(SectorSeedReady{})
 	require.Equal(m.t, m.state.State, api.Committing)
diff --git a/storage/sealing/sealing.go b/storage/sealing/sealing.go
index 5b8ce1bb5..5a486f6ef 100644
--- a/storage/sealing/sealing.go
+++ b/storage/sealing/sealing.go
@@ -6,7 +6,6 @@ import (
 
 	"github.com/filecoin-project/go-address"
 	"github.com/filecoin-project/go-sectorbuilder"
-	"github.com/filecoin-project/lotus/lib/padreader"
 	"github.com/ipfs/go-cid"
 	"github.com/ipfs/go-datastore"
 	"github.com/ipfs/go-datastore/namespace"
@@ -14,9 +13,11 @@ import (
 	"golang.org/x/xerrors"
 
 	"github.com/filecoin-project/lotus/api"
+	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/events"
 	"github.com/filecoin-project/lotus/chain/store"
 	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/lib/padreader"
 	"github.com/filecoin-project/lotus/lib/statemachine"
 )
 
@@ -37,6 +38,7 @@ type sealingApi interface { // TODO: trim down
 	StateWaitMsg(context.Context, cid.Cid) (*api.MsgWait, error) // TODO: removeme eventually
 	StateGetActor(ctx context.Context, actor address.Address, ts *types.TipSet) (*types.Actor, error)
 	StateGetReceipt(context.Context, cid.Cid, *types.TipSet) (*types.MessageReceipt, error)
+	StateMarketStorageDeal(context.Context, uint64, *types.TipSet) (*actors.OnChainDeal, error)
 
 	MpoolPushMessage(context.Context, *types.Message) (*types.SignedMessage, error)
 
diff --git a/storage/sealing/states.go b/storage/sealing/states.go
index 1bebdb243..ad4a8f542 100644
--- a/storage/sealing/states.go
+++ b/storage/sealing/states.go
@@ -97,7 +97,7 @@ func (m *Sealing) handlePreCommitting(ctx statemachine.Context, sector SectorInf
 	return ctx.Send(SectorPreCommitted{message: smsg.Cid()})
 }
 
-func (m *Sealing) handlePreCommitted(ctx statemachine.Context, sector SectorInfo) error {
+func (m *Sealing) handleWaitSeed(ctx statemachine.Context, sector SectorInfo) error {
 	// would be ideal to just use the events.Called handler, but it wouldnt be able to handle individual message timeouts
 	log.Info("Sector precommitted: ", sector.SectorID)
 	mw, err := m.api.StateWaitMsg(ctx.Context(), *sector.PreCommitMessage)
@@ -147,7 +147,7 @@ func (m *Sealing) handleCommitting(ctx statemachine.Context, sector SectorInfo)
 
 	proof, err := m.sb.SealCommit(ctx.Context(), sector.SectorID, sector.Ticket.SB(), sector.Seed.SB(), sector.pieceInfos(), sector.rspco())
 	if err != nil {
-		return ctx.Send(SectorSealCommitFailed{xerrors.Errorf("computing seal proof failed: %w", err)})
+		return ctx.Send(SectorComputeProofFailed{xerrors.Errorf("computing seal proof failed: %w", err)})
 	}
 
 	// TODO: Consider splitting states and persist proof for faster recovery
diff --git a/storage/sealing/types.go b/storage/sealing/types.go
index 6e248050e..096e83d08 100644
--- a/storage/sealing/types.go
+++ b/storage/sealing/types.go
@@ -49,7 +49,7 @@ func (p *Piece) ppi() (out sectorbuilder.PublicPieceInfo) {
 type SectorInfo struct {
 	State    api.SectorState
 	SectorID uint64
-	Nonce    uint64
+	Nonce    uint64 // TODO: remove
 
 	// Packing
 
@@ -63,7 +63,7 @@ type SectorInfo struct {
 
 	PreCommitMessage *cid.Cid
 
-	// PreCommitted
+	// WaitSeed
 	Seed SealSeed
 
 	// Committing