Set LastProofHash when statesync

state/store.go

@@ -233,11 +233,11 @@ func (store dbStore) Bootstrap(state State) error {
 		return err
 	}
 
-	if err := store.saveVoterParams(height+1, state.VoterParams); err != nil {
+	if err := store.saveVoterParams(height, state.VoterParams); err != nil {
 		return err
 	}
 
-	if err := store.saveProofHash(height+1, state.LastProofHash); err != nil {
+	if err := store.saveProofHash(height, state.LastProofHash); err != nil {
 		return err
 	}
 	return store.db.SetSync(stateKey, state.Bytes())

statesync/stateprovider.go

@@ -6,6 +6,8 @@ import (
 	"strings"
 	"time"
 
+	"github.com/line/ostracon/crypto/vrf"
+
 	dbm "github.com/tendermint/tm-db"
 
 	"github.com/line/ostracon/libs/log"
@@ -169,6 +171,12 @@ func (s *lightClientStateProvider) State(ctx context.Context, height uint64) (sm
 		return sm.State{}, err
 	}
 
+	// VRF proof
+	proofHash, err := vrf.ProofToHash(lastLightBlock.Proof.Bytes())
+	if err != nil {
+		return sm.State{}, err
+	}
+
 	state.LastBlockHeight = lastLightBlock.Height
 	state.LastBlockTime = lastLightBlock.Time
 	state.LastBlockID = lastLightBlock.Commit.BlockID
@@ -179,6 +187,7 @@ func (s *lightClientStateProvider) State(ctx context.Context, height uint64) (sm
 	state.Voters = currentLightBlock.VoterSet
 	state.NextValidators = nextLightBlock.ValidatorSet
 	state.LastHeightValidatorsChanged = nextLightBlock.Height
+	state.LastProofHash = proofHash
 
 	// We'll also need to fetch consensus params via RPC, using light client verification.
 	primaryURL, ok := s.providers[s.lc.Primary()]