call it LastResultsHash

lite/helpers.go

@@ -120,11 +120,11 @@ func genHeader(chainID string, height int64, txs types.Txs,
 		TotalTxs: int64(len(txs)),
 		// LastBlockID
 		// LastCommitHash
-		ValidatorsHash: vals.Hash(),
-		DataHash:       txs.Hash(),
-		AppHash:        appHash,
-		ConsensusHash:  consHash,
-		ResultsHash:    resHash,
+		ValidatorsHash:  vals.Hash(),
+		DataHash:        txs.Hash(),
+		AppHash:         appHash,
+		ConsensusHash:   consHash,
+		LastResultsHash: resHash,
 	}
 }
 

state/execution.go

@@ -243,7 +243,7 @@ func (s *State) MakeBlock(height int64, txs []types.Tx, commit *types.Commit) (*
 	block.ValidatorsHash = s.Validators.Hash()
 	block.AppHash = s.AppHash
 	block.ConsensusHash = s.LastConsensusParams.Hash()
-	block.ResultsHash = s.LastResultHash
+	block.LastResultsHash = s.LastResultsHash
 
 	return block, block.MakePartSet(s.ConsensusParams.BlockGossip.BlockPartSizeBytes)
 }
@@ -282,8 +282,8 @@ func (s *State) validateBlock(b *types.Block) error {
 	if !bytes.Equal(b.ConsensusHash, s.LastConsensusParams.Hash()) {
 		return fmt.Errorf("Wrong Block.Header.ConsensusHash.  Expected %X, got %v", s.LastConsensusParams.Hash(), b.ConsensusHash)
 	}
-	if !bytes.Equal(b.ResultsHash, s.LastResultHash) {
-		return fmt.Errorf("Wrong Block.Header.ResultsHash.  Expected %X, got %v", s.LastResultHash, b.ResultsHash)
+	if !bytes.Equal(b.LastResultsHash, s.LastResultsHash) {
+		return fmt.Errorf("Wrong Block.Header.LastResultsHash.  Expected %X, got %v", s.LastResultsHash, b.LastResultsHash)
 	}
 
 	// Validate block LastCommit.

state/execution_test.go

@@ -70,7 +70,7 @@ func TestValidateBlock(t *testing.T) {
 
 	// wrong results hash fails
 	block = makeBlock(state, 1)
-	block.ResultsHash = []byte("wrong results hash")
+	block.LastResultsHash = []byte("wrong results hash")
 	err = state.ValidateBlock(block)
 	require.Error(t, err)
 }

state/state.go

@@ -75,7 +75,7 @@ type State struct {
 	LastHeightConsensusParamsChanged int64
 
 	// Merkle root of the results from executing prev block
-	LastResultHash []byte
+	LastResultsHash []byte
 
 	// The latest AppHash we've received from calling abci.Commit()
 	AppHash []byte
@@ -151,7 +151,7 @@ func (s *State) Copy() *State {
 
 		AppHash: s.AppHash,
 
-		LastResultHash: s.LastResultHash,
+		LastResultsHash: s.LastResultsHash,
 
 		logger: s.logger,
 	}
@@ -377,7 +377,7 @@ func (s *State) setBlockAndValidators(height int64,
 	s.LastConsensusParams = s.ConsensusParams
 	s.ConsensusParams = params
 
-	s.LastResultHash = resultsHash
+	s.LastResultsHash = resultsHash
 }
 
 // GetValidators returns the last and current validator sets.
@@ -387,9 +387,9 @@ func (s *State) GetValidators() (last *types.ValidatorSet, current *types.Valida
 
 //------------------------------------------------------------------------
 
-// ABCIResponses retains the deterministic components of the responses
+// ABCIResponses retains the responses
 // of the various ABCI calls during block processing.
-// It is persisted to disk before calling Commit.
+// It is persisted to disk for each height before calling Commit.
 type ABCIResponses struct {
 	DeliverTx []*abci.ResponseDeliverTx
 	EndBlock  *abci.ResponseEndBlock

state/state_test.go

@@ -422,7 +422,6 @@ func TestLessThanOneThirdOfVotingPowerPerBlockEnforced(t *testing.T) {
 		height := state.LastBlockHeight + 1
 		block := makeBlock(state, height)
 		abciResponses := &ABCIResponses{
-			Height:   height,
 			EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: tc.valUpdatesFn(state.Validators)},
 		}
 		err := state.SetBlockAndValidators(block.Header, types.PartSetHeader{}, abciResponses)
@@ -512,7 +511,6 @@ func makeHeaderPartsResponsesValPowerChange(state *State, height int64,
 
 	block := makeBlock(state, height)
 	abciResponses := &ABCIResponses{
-		Height:   height,
 		EndBlock: &abci.ResponseEndBlock{ValidatorUpdates: []*abci.Validator{}},
 	}
 

types/block.go

@@ -150,10 +150,10 @@ type Header struct {
 	DataHash       data.Bytes `json:"data_hash"`        // transactions
 
 	// hashes from the app output from the prev block
-	ValidatorsHash data.Bytes `json:"validators_hash"` // validators for the current block
-	ConsensusHash  data.Bytes `json:"consensus_hash"`  // consensus params for current block
-	AppHash        data.Bytes `json:"app_hash"`        // state after txs from the previous block
-	ResultsHash    data.Bytes `json:"results_hash"`    // root hash of all results from the txs from the previous block
+	ValidatorsHash  data.Bytes `json:"validators_hash"`   // validators for the current block
+	ConsensusHash   data.Bytes `json:"consensus_hash"`    // consensus params for current block
+	AppHash         data.Bytes `json:"app_hash"`          // state after txs from the previous block
+	LastResultsHash data.Bytes `json:"last_results_hash"` // root hash of all results from the txs from the previous block
 }
 
 // Hash returns the hash of the header.
@@ -174,7 +174,7 @@ func (h *Header) Hash() data.Bytes {
 		"Validators":  h.ValidatorsHash,
 		"App":         h.AppHash,
 		"Consensus":   h.ConsensusHash,
-		"Results":     h.ResultsHash,
+		"Results":     h.LastResultsHash,
 	})
 }
 
@@ -208,7 +208,7 @@ func (h *Header) StringIndented(indent string) string {
 		indent, h.ValidatorsHash,
 		indent, h.AppHash,
 		indent, h.ConsensusHash,
-		indent, h.ResultsHash,
+		indent, h.LastResultsHash,
 		indent, h.Hash())
 }
 

types/results.go

@@ -1,10 +1,6 @@
 package types
 
 import (
-	"fmt"
-
-	"golang.org/x/crypto/ripemd160"
-
 	abci "github.com/tendermint/abci/types"
 	wire "github.com/tendermint/go-wire"
 	"github.com/tendermint/go-wire/data"
@@ -14,18 +10,15 @@ import (
 //-----------------------------------------------------------------------------
 
 // ABCIResult is the deterministic component of a ResponseDeliverTx.
+// TODO: add Tags
 type ABCIResult struct {
 	Code uint32     `json:"code"`
 	Data data.Bytes `json:"data"`
 }
 
-// Hash returns the canonical json hash of the ABCIResult
+// Hash returns the canonical hash of the ABCIResult
 func (a ABCIResult) Hash() []byte {
-	// stupid canonical json output, easy to check in any language
-	bs := fmt.Sprintf(`{"code":%d,"data":"%s"}`, a.Code, a.Data)
-	var hasher = ripemd160.New()
-	hasher.Write([]byte(bs))
-	return hasher.Sum(nil)
+	return wire.BinaryRipemd160(a)
 }
 
 // ABCIResults wraps the deliver tx results to return a proof