Remove HF activation code (#2152)

* Remove HF activation code

* Remove unused var totalInputs

app/appmessage/p2p_msgtx.go

@@ -159,7 +159,7 @@ func (msg *MsgTx) IsCoinBase() bool {
 
 // TxHash generates the Hash for the transaction.
 func (msg *MsgTx) TxHash() *externalapi.DomainHash {
-	return consensushashing.TransactionHash(MsgTxToDomainTransaction(msg), false)
+	return consensushashing.TransactionHash(MsgTxToDomainTransaction(msg))
 }
 
 // TxID generates the Hash for the transaction without the signature script, gas and payload fields.

app/appmessage/p2p_msgtx_test.go

@@ -133,7 +133,7 @@ func TestTx(t *testing.T) {
 
 // TestTxHash tests the ability to generate the hash of a transaction accurately.
 func TestTxHashAndID(t *testing.T) {
-	txHash1Str := "93663e597f6c968d32d229002f76408edf30d6a0151ff679fc729812d8cb2acc"
+	txHash1Str := "b06f8b650115b5cf4d59499e10764a9312742930cb43c9b4ff6495d76f332ed7"
 	txID1Str := "e20225c3d065ee41743607ee627db44d01ef396dc9779b05b2caf55bac50e12d"
 	wantTxID1, err := transactionid.FromString(txID1Str)
 	if err != nil {
@@ -185,7 +185,7 @@ func TestTxHashAndID(t *testing.T) {
 			spew.Sprint(tx1ID), spew.Sprint(wantTxID1))
 	}
 
-	hash2Str := "8dafd1bec24527d8e3b443ceb0a3b92fffc0d60026317f890b2faf5e9afc177a"
+	hash2Str := "fa16a8ce88d52ca1ff45187bbba0d33044e9f5fe309e8d0b22d4812dcf1782b7"
 	wantHash2, err := externalapi.NewDomainHashFromString(hash2Str)
 	if err != nil {
 		t.Errorf("NewTxIDFromStr: %v", err)

app/rpc/rpccontext/verbosedata.go

@@ -123,19 +123,9 @@ func (ctx *Context) PopulateTransactionWithVerboseData(
 
 	ctx.Domain.Consensus().PopulateMass(domainTransaction)
 
-	var daaScore uint64
-	if domainBlockHeader != nil {
-		daaScore = domainBlockHeader.DAAScore()
-	} else {
-		daaScore, err = ctx.Domain.Consensus().GetVirtualDAAScore()
-		if err != nil {
-			return err
-		}
-	}
-
 	transaction.VerboseData = &appmessage.RPCTransactionVerboseData{
 		TransactionID: consensushashing.TransactionID(domainTransaction).String(),
-		Hash:          consensushashing.TransactionHash(domainTransaction, daaScore >= ctx.Config.NetParams().HFDAAScore).String(),
+		Hash:          consensushashing.TransactionHash(domainTransaction).String(),
 		Mass:          domainTransaction.Mass,
 	}
 	if domainBlockHeader != nil {

cmd/kaspawallet/daemon/server/split_transaction.go

@@ -158,7 +158,7 @@ func (s *server) splitAndInputPerSplitCounts(transaction *serialization.Partiall
 	// to calculate how much mass do all the inputs have
 	transactionWithoutInputs := transaction.Tx.Clone()
 	transactionWithoutInputs.Inputs = []*externalapi.DomainTransactionInput{}
-	massWithoutInputs := s.txMassCalculator.CalculateTransactionMass(transactionWithoutInputs, true)
+	massWithoutInputs := s.txMassCalculator.CalculateTransactionMass(transactionWithoutInputs)
 
 	massOfAllInputs := transactionMass - massWithoutInputs
 
@@ -177,7 +177,7 @@ func (s *server) splitAndInputPerSplitCounts(transaction *serialization.Partiall
 		return 0, 0, err
 	}
 	massForEverythingExceptInputsInSplitTransaction :=
-		s.txMassCalculator.CalculateTransactionMass(splitTransactionWithoutInputs.Tx, true)
+		s.txMassCalculator.CalculateTransactionMass(splitTransactionWithoutInputs.Tx)
 	massForInputsInSplitTransaction := mempool.MaximumStandardTransactionMass - massForEverythingExceptInputsInSplitTransaction
 
 	inputsPerSplitCount = int(massForInputsInSplitTransaction / massPerInput)
@@ -245,7 +245,7 @@ func (s *server) estimateMassAfterSignatures(transaction *serialization.Partiall
 		return 0, err
 	}
 
-	return s.txMassCalculator.CalculateTransactionMass(transactionWithSignatures, true), nil
+	return s.txMassCalculator.CalculateTransactionMass(transactionWithSignatures), nil
 }
 
 func (s *server) moreUTXOsForMergeTransaction(alreadySelectedUTXOs []*libkaspawallet.UTXO, requiredAmount uint64) (

cmd/kaspawallet/daemon/server/split_transaction_test.go

@@ -58,7 +58,7 @@ func TestEstimateMassAfterSignatures(t *testing.T) {
 			t.Fatalf("ExtractTransaction: %+v", err)
 		}
 
-		actualMassAfterSignatures := serverInstance.txMassCalculator.CalculateTransactionMass(extractedSignedTx, true)
+		actualMassAfterSignatures := serverInstance.txMassCalculator.CalculateTransactionMass(extractedSignedTx)
 
 		if estimatedMassAfterSignatures != actualMassAfterSignatures {
 			t.Errorf("Estimated mass after signatures: %d but actually got %d",

cmd/kaspawallet/sweep.go

@@ -184,7 +184,7 @@ func createSplitTransactionsWithSchnorrPrivteKey(
 			ScriptPublicKey: scriptPublicKey,
 		}
 
-		if massCalculater.CalculateTransactionMass(currentTx, true)+extraMass >= mempool.MaximumStandardTransactionMass {
+		if massCalculater.CalculateTransactionMass(currentTx)+extraMass >= mempool.MaximumStandardTransactionMass {
 
 			//in this loop we assume a transaction with one input and one output cannot violate max transaction mass, hence a sanity check.
 			if len(currentTx.Inputs) == 1 {

domain/consensus/consensus.go

@@ -21,7 +21,6 @@ type consensus struct {
 
 	genesisBlock *externalapi.DomainBlock
 	genesisHash  *externalapi.DomainHash
-	hfDAAScore   uint64
 
 	expectedDAAWindowDurationInMilliseconds int64
 
@@ -918,7 +917,7 @@ func (s *consensus) EstimateNetworkHashesPerSecond(startHash *externalapi.Domain
 }
 
 func (s *consensus) PopulateMass(transaction *externalapi.DomainTransaction) {
-	s.transactionValidator.PopulateMass(transaction, s.hfDAAScore)
+	s.transactionValidator.PopulateMass(transaction)
 }
 
 func (s *consensus) ResolveVirtual(progressReportCallback func(uint64, uint64)) error {

domain/consensus/factory.go

@@ -216,7 +216,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 	transactionValidator := transactionvalidator.New(config.BlockCoinbaseMaturity,
 		config.EnableNonNativeSubnetworks,
 		config.MaxCoinbasePayloadLength,
-		config.HFDAAScore,
 		config.K,
 		config.CoinbasePayloadScriptPublicKeyMaxLength,
 		dbManager,
@@ -247,7 +246,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 		config.GenesisHash,
 		config.DeflationaryPhaseDaaScore,
 		config.DeflationaryPhaseBaseSubsidy,
-		config.HFDAAScore,
 
 		dagTraversalManager,
 		ghostdagDataStore,
@@ -284,7 +282,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 		config.MaxBlockParents,
 		config.MergeSetSizeLimit,
 		genesisHash,
-		config.HFDAAScore,
 
 		ghostdagManager,
 		dagTopologyManager,
@@ -353,7 +350,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 		config.TimestampDeviationTolerance,
 		config.TargetTimePerBlock,
 		config.MaxBlockLevel,
-		config.HFDAAScore,
 
 		dbManager,
 		difficultyManager,
@@ -401,7 +397,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 	blockBuilder := blockbuilder.New(
 		dbManager,
 		genesisHash,
-		config.HFDAAScore,
 
 		difficultyManager,
 		pastMedianTimeManager,
@@ -483,7 +478,6 @@ func (f *factory) NewConsensus(config *Config, db infrastructuredatabase.Databas
 
 		genesisBlock: config.GenesisBlock,
 		genesisHash:  config.GenesisHash,
-		hfDAAScore:   config.HFDAAScore,
 
 		expectedDAAWindowDurationInMilliseconds: config.TargetTimePerBlock.Milliseconds() *
 			int64(config.DifficultyAdjustmentWindowSize),

domain/consensus/model/interface_processes_coinbasemanager.go

@@ -8,5 +8,5 @@ type CoinbaseManager interface {
 	ExpectedCoinbaseTransaction(stagingArea *StagingArea, blockHash *externalapi.DomainHash,
 		coinbaseData *externalapi.DomainCoinbaseData) (expectedTransaction *externalapi.DomainTransaction, hasRedReward bool, err error)
 	CalcBlockSubsidy(stagingArea *StagingArea, blockHash *externalapi.DomainHash) (uint64, error)
-	ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *externalapi.DomainTransaction, postHF bool) (blueScore uint64, coinbaseData *externalapi.DomainCoinbaseData, subsidy uint64, err error)
+	ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *externalapi.DomainTransaction) (blueScore uint64, coinbaseData *externalapi.DomainCoinbaseData, subsidy uint64, err error)
 }

domain/consensus/model/interface_processes_transactionvalidator.go

@@ -12,5 +12,5 @@ type TransactionValidator interface {
 		povBlockHash *externalapi.DomainHash, povBlockPastMedianTime int64) error
 	ValidateTransactionInContextAndPopulateFee(stagingArea *StagingArea,
 		tx *externalapi.DomainTransaction, povBlockHash *externalapi.DomainHash) error
-	PopulateMass(transaction *externalapi.DomainTransaction, daaScore uint64)
+	PopulateMass(transaction *externalapi.DomainTransaction)
 }

domain/consensus/processes/blockbuilder/block_builder.go

@@ -20,7 +20,6 @@ import (
 type blockBuilder struct {
 	databaseContext model.DBManager
 	genesisHash     *externalapi.DomainHash
-	hfDAAScore      uint64
 
 	difficultyManager     model.DifficultyManager
 	pastMedianTimeManager model.PastMedianTimeManager
@@ -43,7 +42,6 @@ type blockBuilder struct {
 func New(
 	databaseContext model.DBManager,
 	genesisHash *externalapi.DomainHash,
-	hfDAAScore uint64,
 
 	difficultyManager model.DifficultyManager,
 	pastMedianTimeManager model.PastMedianTimeManager,
@@ -65,7 +63,6 @@ func New(
 	return &blockBuilder{
 		databaseContext: databaseContext,
 		genesisHash:     genesisHash,
-		hfDAAScore:      hfDAAScore,
 
 		difficultyManager:     difficultyManager,
 		pastMedianTimeManager: pastMedianTimeManager,
@@ -209,7 +206,7 @@ func (bb *blockBuilder) buildHeader(stagingArea *model.StagingArea, transactions
 	if err != nil {
 		return nil, err
 	}
-	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions, daaScore >= bb.hfDAAScore)
+	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions)
 	acceptedIDMerkleRoot, err := bb.newBlockAcceptedIDMerkleRoot(stagingArea)
 	if err != nil {
 		return nil, err
@@ -282,8 +279,8 @@ func (bb *blockBuilder) newBlockDifficulty(stagingArea *model.StagingArea) (uint
 	return bb.difficultyManager.RequiredDifficulty(stagingArea, model.VirtualBlockHash)
 }
 
-func (bb *blockBuilder) newBlockHashMerkleRoot(transactions []*externalapi.DomainTransaction, postHF bool) *externalapi.DomainHash {
+func (bb *blockBuilder) newBlockHashMerkleRoot(transactions []*externalapi.DomainTransaction) *externalapi.DomainHash {
-	return merkle.CalculateHashMerkleRoot(transactions, postHF)
+	return merkle.CalculateHashMerkleRoot(transactions)
 }
 
 func (bb *blockBuilder) newBlockAcceptedIDMerkleRoot(stagingArea *model.StagingArea) (*externalapi.DomainHash, error) {

domain/consensus/processes/blockbuilder/test_block_builder.go

@@ -76,7 +76,7 @@ func (bb *testBlockBuilder) buildUTXOInvalidHeader(stagingArea *model.StagingAre
 		return nil, err
 	}
 
-	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions, daaScore >= bb.hfDAAScore)
+	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions)
 
 	pruningPoint, err := bb.newBlockPruningPoint(stagingArea, tempBlockHash)
 	if err != nil {
@@ -120,7 +120,7 @@ func (bb *testBlockBuilder) buildHeaderWithParents(stagingArea *model.StagingAre
 		return nil, err
 	}
 
-	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions, daaScore >= bb.hfDAAScore)
+	hashMerkleRoot := bb.newBlockHashMerkleRoot(transactions)
 	acceptedIDMerkleRoot, err := bb.calculateAcceptedIDMerkleRoot(acceptanceData)
 	if err != nil {
 		return nil, err

domain/consensus/processes/blockprocessor/validate_and_insert_block_test.go

@@ -94,7 +94,7 @@ func TestBlockStatus(t *testing.T) {
 		invalidBlock.Header = blockheader.NewImmutableBlockHeader(
 			disqualifiedBlock.Header.Version(),
 			disqualifiedBlock.Header.Parents(),
-			merkle.CalculateHashMerkleRoot(invalidBlock.Transactions, invalidBlock.Header.DAAScore() >= consensusConfig.HFDAAScore),
+			merkle.CalculateHashMerkleRoot(invalidBlock.Transactions),
 			disqualifiedBlock.Header.AcceptedIDMerkleRoot(),
 			disqualifiedBlock.Header.UTXOCommitment(),
 			disqualifiedBlock.Header.TimeInMilliseconds(),

domain/consensus/processes/blockvalidator/block_body_in_context.go

@@ -187,7 +187,7 @@ func (v *blockValidator) checkCoinbaseSubsidy(
 		return err
 	}
 
-	_, _, subsidy, err := v.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex], block.Header.DAAScore() >= v.hfDAAScore)
+	_, _, subsidy, err := v.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex])
 	if err != nil {
 		return err
 	}

domain/consensus/processes/blockvalidator/block_body_in_isolation.go

@@ -5,7 +5,6 @@ import (
 	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/consensushashing"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/merkle"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
 	"github.com/kaspanet/kaspad/domain/consensus/utils/transactionhelper"
@@ -89,21 +88,11 @@ func (v *blockValidator) ValidateBodyInIsolation(stagingArea *model.StagingArea,
 		return err
 	}
 
-	if block.Header.DAAScore() < v.hfDAAScore {
-		totalInputs := 0
-		for _, tx := range block.Transactions {
-			totalInputs += len(tx.Inputs)
-			if totalInputs > constants.MaxBlockInputsPreHF {
-				return errors.Wrapf(ruleerrors.ErrOverMaxBlockInputsPreHF, "block has more than %d inputs", constants.MaxBlockInputsPreHF)
-			}
-		}
-	}
-
 	return nil
 }
 
 func (v *blockValidator) checkCoinbaseBlueScore(block *externalapi.DomainBlock) error {
-	coinbaseBlueScore, _, _, err := v.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex], block.Header.DAAScore() >= v.hfDAAScore)
+	coinbaseBlueScore, _, _, err := v.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex])
 	if err != nil {
 		return err
 	}
@@ -162,7 +151,7 @@ func (v *blockValidator) checkTransactionsInIsolation(block *externalapi.DomainB
 }
 
 func (v *blockValidator) checkBlockHashMerkleRoot(block *externalapi.DomainBlock) error {
-	calculatedHashMerkleRoot := merkle.CalculateHashMerkleRoot(block.Transactions, block.Header.DAAScore() >= v.hfDAAScore)
+	calculatedHashMerkleRoot := merkle.CalculateHashMerkleRoot(block.Transactions)
 	if !block.Header.HashMerkleRoot().Equal(calculatedHashMerkleRoot) {
 		return errors.Wrapf(ruleerrors.ErrBadMerkleRoot, "block hash merkle root is invalid - block "+
 			"header indicates %s, but calculated value is %s",
@@ -232,7 +221,7 @@ func (v *blockValidator) validateGasLimit(block *externalapi.DomainBlock) error
 func (v *blockValidator) checkBlockMass(block *externalapi.DomainBlock) error {
 	mass := uint64(0)
 	for _, transaction := range block.Transactions {
-		v.transactionValidator.PopulateMass(transaction, block.Header.DAAScore())
+		v.transactionValidator.PopulateMass(transaction)
 
 		massBefore := mass
 		mass += transaction.Mass

domain/consensus/processes/blockvalidator/block_body_in_isolation_test.go

@@ -34,7 +34,6 @@ func TestBlockValidator_ValidateBodyInIsolation(t *testing.T) {
 		CheckFirstBlockTransactionIsCoinbase,
 	}
 	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
-		consensusConfig.HFDAAScore = 10
 		tc, teardown, err := consensus.NewFactory().NewTestConsensus(consensusConfig, "TestChainedTransactions")
 		if err != nil {
 			t.Fatalf("Error setting up consensus: %+v", err)
@@ -170,10 +169,10 @@ var unOrderedParentsBlock = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x31, 0x33, 0x37, 0x72, 0x5c, 0xde, 0x1c, 0xdf,
+			0x7e, 0xe2, 0x10, 0x4e, 0x21, 0x2f, 0x2a, 0xb1,
-			0xf5, 0x9f, 0xde, 0x16, 0x74, 0xbf, 0x0c, 0x64,
+			0x7d, 0x22, 0xf5, 0xe8, 0xa0, 0x98, 0xef, 0x53,
-			0x37, 0x40, 0x49, 0xdf, 0x02, 0x05, 0xca, 0x6d,
+			0x83, 0xae, 0x59, 0x1f, 0x83, 0xf3, 0x78, 0x5d,
-			0x52, 0x23, 0x6f, 0xc2, 0x2b, 0xec, 0xad, 0x42,
+			0x30, 0xae, 0x3e, 0xb3, 0x06, 0x08, 0x6f, 0x79,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0x80, 0xf7, 0x00, 0xe3, 0x16, 0x3d, 0x04, 0x95,
@@ -203,20 +202,7 @@ var unOrderedParentsBlock = externalapi.DomainBlock{
 	Transactions: []*externalapi.DomainTransaction{
 		{
 			Version: 0,
-			Inputs: []*externalapi.DomainTransactionInput{
+			Inputs:  nil,
-				{
-					PreviousOutpoint: externalapi.DomainOutpoint{
-						TransactionID: *externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{}),
-						Index:         0xffffffff,
-					},
-					SignatureScript: []byte{
-						0x02, 0x10, 0x27, 0x08, 0xac, 0x29, 0x2f, 0x2f,
-						0xcf, 0x70, 0xb0, 0x7e, 0x0b, 0x2f, 0x50, 0x32,
-						0x53, 0x48, 0x2f, 0x62, 0x74, 0x63, 0x64, 0x2f,
-					},
-					Sequence: math.MaxUint64,
-				},
-			},
 			Outputs: []*externalapi.DomainTransactionOutput{
 				{
 					Value: 0x12a05f200, // 5000000000
@@ -447,10 +433,10 @@ var exampleValidBlock = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x86, 0x8b, 0x73, 0xcd, 0x20, 0x51, 0x23, 0x60,
+			0x46, 0xec, 0xf4, 0x5b, 0xe3, 0xba, 0xca, 0x34,
-			0xea, 0x62, 0x99, 0x9b, 0x87, 0xf6, 0xdd, 0x8d,
+			0x9d, 0xfe, 0x8a, 0x78, 0xde, 0xaf, 0x05, 0x3b,
-			0xa4, 0x0b, 0xd7, 0xcf, 0xc6, 0x32, 0x38, 0xee,
+			0x0a, 0xa6, 0xd5, 0x38, 0x97, 0x4d, 0xa5, 0x0f,
-			0xd9, 0x68, 0x72, 0x1f, 0xa2, 0x51, 0xe4, 0x28,
+			0xd6, 0xef, 0xb4, 0xd2, 0x66, 0xbc, 0x8d, 0x21,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0x8a, 0xb7, 0xd6, 0x73, 0x1b, 0xe6, 0xc5, 0xd3,
@@ -475,21 +461,7 @@ var exampleValidBlock = externalapi.DomainBlock{
 	Transactions: []*externalapi.DomainTransaction{
 		{
 			Version: 0,
-			Inputs: []*externalapi.DomainTransactionInput{
+			Inputs:  nil,
-				{
-					PreviousOutpoint: externalapi.DomainOutpoint{
-						TransactionID: *externalapi.NewDomainTransactionIDFromByteArray(&[externalapi.DomainHashSize]byte{
-							0x9b, 0x22, 0x59, 0x44, 0x66, 0xf0, 0xbe, 0x50,
-							0x7c, 0x1c, 0x8a, 0xf6, 0x06, 0x27, 0xe6, 0x33,
-							0x38, 0x7e, 0xd1, 0xd5, 0x8c, 0x42, 0x59, 0x1a,
-							0x31, 0xac, 0x9a, 0xa6, 0x2e, 0xd5, 0x2b, 0x0f,
-						}),
-						Index: 0xffffffff,
-					},
-					SignatureScript: nil,
-					Sequence:        math.MaxUint64,
-				},
-			},
 			Outputs: []*externalapi.DomainTransactionOutput{
 				{
 					Value: 0x12a05f200, // 5000000000
@@ -752,10 +724,10 @@ var blockWithWrongTxOrder = externalapi.DomainBlock{
 			}),
 		}},
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
-			0x7b, 0x25, 0x8b, 0xfa, 0xfb, 0x49, 0xe4, 0x94,
+			0xd5, 0xd2, 0x32, 0xe4, 0xbe, 0x9c, 0x33, 0xbd,
-			0x48, 0x2c, 0xf9, 0x74, 0xdd, 0xad, 0x9d, 0x6f,
+			0xf1, 0x0a, 0xd2, 0x9d, 0x0c, 0xbd, 0xe5, 0xae,
-			0x98, 0x8f, 0xfb, 0x01, 0x9d, 0x49, 0x29, 0xbe,
+			0xcb, 0x1a, 0xf9, 0x5a, 0x3e, 0xfb, 0xf3, 0xc7,
-			0x3c, 0xec, 0x90, 0xfe, 0xa5, 0x0c, 0xaf, 0x6b,
+			0x2b, 0x4d, 0x10, 0xa6, 0xbd, 0x5f, 0x07, 0xe7,
 		}),
 		externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 			0xa0, 0x69, 0x2d, 0x16, 0xb5, 0xd7, 0xe4, 0xf3,
@@ -1310,7 +1282,7 @@ func initBlockWithFirstTransactionDifferentThanCoinbase(consensusConfig *consens
 		Header: blockheader.NewImmutableBlockHeader(
 			constants.BlockVersion,
 			[]externalapi.BlockLevelParents{[]*externalapi.DomainHash{consensusConfig.GenesisHash}},
-			merkle.CalculateHashMerkleRoot([]*externalapi.DomainTransaction{tx}, consensusConfig.HFDAAScore == 0),
+			merkle.CalculateHashMerkleRoot([]*externalapi.DomainTransaction{tx}),
 			&externalapi.DomainHash{},
 			externalapi.NewDomainHashFromByteArray(&[externalapi.DomainHashSize]byte{
 				0x80, 0xf7, 0x00, 0xe3, 0x16, 0x3d, 0x04, 0x95,

domain/consensus/processes/blockvalidator/blockvalidator.go

@@ -25,7 +25,6 @@ type blockValidator struct {
 	timestampDeviationTolerance int
 	targetTimePerBlock          time.Duration
 	maxBlockLevel               int
-	hfDAAScore                  uint64
 
 	databaseContext       model.DBReader
 	difficultyManager     model.DifficultyManager
@@ -65,7 +64,6 @@ func New(powMax *big.Int,
 	timestampDeviationTolerance int,
 	targetTimePerBlock time.Duration,
 	maxBlockLevel int,
-	hfDAAScore uint64,
 
 	databaseContext model.DBReader,
 
@@ -105,7 +103,6 @@ func New(powMax *big.Int,
 		mergeSetSizeLimit:          mergeSetSizeLimit,
 		maxBlockParents:            maxBlockParents,
 		maxBlockLevel:              maxBlockLevel,
-		hfDAAScore:                 hfDAAScore,
 
 		timestampDeviationTolerance: timestampDeviationTolerance,
 		targetTimePerBlock:          targetTimePerBlock,

domain/consensus/processes/blockvalidator/pruning_violation_proof_of_work_and_difficulty_test.go

@@ -181,7 +181,7 @@ func TestCheckParentHeadersExist(t *testing.T) {
 		invalidBlock.Header = blockheader.NewImmutableBlockHeader(
 			invalidBlock.Header.Version(),
 			invalidBlock.Header.Parents(),
-			merkle.CalculateHashMerkleRoot(invalidBlock.Transactions, orphanBlock.Header.DAAScore() >= consensusConfig.HFDAAScore),
+			merkle.CalculateHashMerkleRoot(invalidBlock.Transactions),
 			orphanBlock.Header.AcceptedIDMerkleRoot(),
 			orphanBlock.Header.UTXOCommitment(),
 			orphanBlock.Header.TimeInMilliseconds(),

domain/consensus/processes/coinbasemanager/coinbasemanager.go

@@ -19,7 +19,6 @@ type coinbaseManager struct {
 	genesisHash                             *externalapi.DomainHash
 	deflationaryPhaseDaaScore               uint64
 	deflationaryPhaseBaseSubsidy            uint64
-	hfDAAScore                              uint64
 
 	databaseContext     model.DBReader
 	dagTraversalManager model.DAGTraversalManager
@@ -128,8 +127,7 @@ func (c *coinbaseManager) coinbaseOutputForBlueBlock(stagingArea *model.StagingA
 	}
 
 	// the ScriptPublicKey for the coinbase is parsed from the coinbase payload
-	// We pass postHF=true since it only affects the deserialization of the subsidy, which is not used in this context.
+	_, coinbaseData, _, err := c.ExtractCoinbaseDataBlueScoreAndSubsidy(blockAcceptanceData.TransactionAcceptanceData[0].Transaction)
-	_, coinbaseData, _, err := c.ExtractCoinbaseDataBlueScoreAndSubsidy(blockAcceptanceData.TransactionAcceptanceData[0].Transaction, true)
 	if err != nil {
 		return nil, false, err
 	}
@@ -267,7 +265,7 @@ func (c *coinbaseManager) calcMergedBlockReward(stagingArea *model.StagingArea,
 		return 0, err
 	}
 
-	_, _, subsidy, err := c.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex], block.Header.DAAScore() >= c.hfDAAScore)
+	_, _, subsidy, err := c.ExtractCoinbaseDataBlueScoreAndSubsidy(block.Transactions[transactionhelper.CoinbaseTransactionIndex])
 	if err != nil {
 		return 0, err
 	}
@@ -285,7 +283,6 @@ func New(
 	genesisHash *externalapi.DomainHash,
 	deflationaryPhaseDaaScore uint64,
 	deflationaryPhaseBaseSubsidy uint64,
-	hfDAAScore uint64,
 
 	dagTraversalManager model.DAGTraversalManager,
 	ghostdagDataStore model.GHOSTDAGDataStore,
@@ -304,7 +301,6 @@ func New(
 		genesisHash:                             genesisHash,
 		deflationaryPhaseDaaScore:               deflationaryPhaseDaaScore,
 		deflationaryPhaseBaseSubsidy:            deflationaryPhaseBaseSubsidy,
-		hfDAAScore:                              hfDAAScore,
 
 		dagTraversalManager: dagTraversalManager,
 		ghostdagDataStore:   ghostdagDataStore,

domain/consensus/processes/coinbasemanager/coinbasemanager_external_test.go

@@ -20,17 +20,14 @@ func TestExtractCoinbaseDataBlueScoreAndSubsidy(t *testing.T) {
 		tests := []struct {
 			name                   string
 			scriptPublicKeyVersion uint16
-			expectedScriptPublicKeyVersionBeforeHF uint16
 		}{
 			{
 				name:                   "below 255",
 				scriptPublicKeyVersion: 100,
-				expectedScriptPublicKeyVersionBeforeHF: 100,
 			},
 			{
 				name:                   "above 255",
 				scriptPublicKeyVersion: 300,
-				expectedScriptPublicKeyVersionBeforeHF: 44,
 			},
 		}
 
@@ -46,16 +43,7 @@ func TestExtractCoinbaseDataBlueScoreAndSubsidy(t *testing.T) {
 				t.Fatal(err)
 			}
 
-			_, cbData, _, err := tc.CoinbaseManager().ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx, false)
+			_, cbData, _, err := tc.CoinbaseManager().ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			if cbData.ScriptPublicKey.Version != test.expectedScriptPublicKeyVersionBeforeHF {
-				t.Fatalf("test %s pre HF expected %d but got %d", test.name, test.expectedScriptPublicKeyVersionBeforeHF, cbData.ScriptPublicKey.Version)
-			}
-
-			_, cbData, _, err = tc.CoinbaseManager().ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx, true)
 			if err != nil {
 				t.Fatal(err)
 			}

domain/consensus/processes/coinbasemanager/coinbasemanager_test.go

@@ -21,7 +21,6 @@ func TestCalcDeflationaryPeriodBlockSubsidy(t *testing.T) {
 		&externalapi.DomainHash{},
 		deflationaryPhaseDaaScore,
 		deflationaryPhaseBaseSubsidy,
-		0,
 		nil,
 		nil,
 		nil,
@@ -97,7 +96,6 @@ func TestBuildSubsidyTable(t *testing.T) {
 		&externalapi.DomainHash{},
 		0,
 		deflationaryPhaseBaseSubsidy,
-		0,
 		nil,
 		nil,
 		nil,

domain/consensus/processes/coinbasemanager/payload.go

@@ -61,7 +61,7 @@ func ModifyCoinbasePayload(payload []byte, coinbaseData *externalapi.DomainCoinb
 }
 
 // ExtractCoinbaseDataBlueScoreAndSubsidy deserializes the coinbase payload to its component (scriptPubKey, extra data, and subsidy).
-func (c *coinbaseManager) ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *externalapi.DomainTransaction, postHF bool) (
+func (c *coinbaseManager) ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *externalapi.DomainTransaction) (
 	blueScore uint64, coinbaseData *externalapi.DomainCoinbaseData, subsidy uint64, err error) {
 
 	minLength := uint64Len + lengthOfSubsidy + lengthOfVersionScriptPubKey + lengthOfScriptPubKeyLength
@@ -73,10 +73,7 @@ func (c *coinbaseManager) ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTx *ext
 	blueScore = binary.LittleEndian.Uint64(coinbaseTx.Payload[:uint64Len])
 	subsidy = binary.LittleEndian.Uint64(coinbaseTx.Payload[uint64Len:])
 
-	scriptPubKeyVersion := uint16(coinbaseTx.Payload[uint64Len+lengthOfSubsidy])
+	scriptPubKeyVersion := binary.LittleEndian.Uint16(coinbaseTx.Payload[uint64Len+lengthOfSubsidy : uint64Len+lengthOfSubsidy+uint16Len])
-	if postHF {
-		scriptPubKeyVersion = binary.LittleEndian.Uint16(coinbaseTx.Payload[uint64Len+lengthOfSubsidy : uint64Len+lengthOfSubsidy+uint16Len])
-	}
 
 	scriptPubKeyScriptLength := coinbaseTx.Payload[uint64Len+lengthOfSubsidy+lengthOfVersionScriptPubKey]
 

domain/consensus/processes/consensusstatemanager/consensus_state_manager.go

@@ -10,7 +10,6 @@ type consensusStateManager struct {
 	maxBlockParents   externalapi.KType
 	mergeSetSizeLimit uint64
 	genesisHash       *externalapi.DomainHash
-	hfDAAScore        uint64
 	databaseContext   model.DBManager
 
 	ghostdagManager       model.GHOSTDAGManager
@@ -45,7 +44,6 @@ func New(
 	maxBlockParents externalapi.KType,
 	mergeSetSizeLimit uint64,
 	genesisHash *externalapi.DomainHash,
-	hfDAAScore uint64,
 
 	ghostdagManager model.GHOSTDAGManager,
 	dagTopologyManager model.DAGTopologyManager,
@@ -74,7 +72,6 @@ func New(
 		maxBlockParents:   maxBlockParents,
 		mergeSetSizeLimit: mergeSetSizeLimit,
 		genesisHash:       genesisHash,
-		hfDAAScore:        hfDAAScore,
 
 		databaseContext: databaseContext,
 

domain/consensus/processes/consensusstatemanager/verify_and_build_utxo.go

@@ -39,7 +39,7 @@ func (csm *consensusStateManager) verifyUTXO(stagingArea *model.StagingArea, blo
 	coinbaseTransaction := block.Transactions[0]
 	log.Debugf("Validating coinbase transaction %s for block %s",
 		consensushashing.TransactionID(coinbaseTransaction), blockHash)
-	err = csm.validateCoinbaseTransaction(stagingArea, blockHash, coinbaseTransaction, block.Header.DAAScore() >= csm.hfDAAScore)
+	err = csm.validateCoinbaseTransaction(stagingArea, blockHash, coinbaseTransaction)
 	if err != nil {
 		return err
 	}
@@ -153,14 +153,14 @@ func calculateAcceptedIDMerkleRoot(multiblockAcceptanceData externalapi.Acceptan
 }
 
 func (csm *consensusStateManager) validateCoinbaseTransaction(stagingArea *model.StagingArea,
-	blockHash *externalapi.DomainHash, coinbaseTransaction *externalapi.DomainTransaction, postHF bool) error {
+	blockHash *externalapi.DomainHash, coinbaseTransaction *externalapi.DomainTransaction) error {
 
 	log.Tracef("validateCoinbaseTransaction start for block %s", blockHash)
 	defer log.Tracef("validateCoinbaseTransaction end for block %s", blockHash)
 
 	log.Tracef("Extracting coinbase data for coinbase transaction %s in block %s",
 		consensushashing.TransactionID(coinbaseTransaction), blockHash)
-	_, coinbaseData, _, err := csm.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTransaction, postHF)
+	_, coinbaseData, _, err := csm.coinbaseManager.ExtractCoinbaseDataBlueScoreAndSubsidy(coinbaseTransaction)
 	if err != nil {
 		return err
 	}
@@ -172,8 +172,8 @@ func (csm *consensusStateManager) validateCoinbaseTransaction(stagingArea *model
 		return err
 	}
 
-	coinbaseTransactionHash := consensushashing.TransactionHash(coinbaseTransaction, true)
+	coinbaseTransactionHash := consensushashing.TransactionHash(coinbaseTransaction)
-	expectedCoinbaseTransactionHash := consensushashing.TransactionHash(expectedCoinbaseTransaction, true)
+	expectedCoinbaseTransactionHash := consensushashing.TransactionHash(expectedCoinbaseTransaction)
 	log.Tracef("given coinbase hash: %s, expected coinbase hash: %s",
 		coinbaseTransactionHash, expectedCoinbaseTransactionHash)
 

domain/consensus/processes/transactionvalidator/mass.go

@@ -5,9 +5,9 @@ import (
 )
 
 // PopulateMass calculates and populates the mass of the given transaction
-func (v *transactionValidator) PopulateMass(transaction *externalapi.DomainTransaction, daaScore uint64) {
+func (v *transactionValidator) PopulateMass(transaction *externalapi.DomainTransaction) {
 	if transaction.Mass != 0 {
 		return
 	}
-	transaction.Mass = v.txMassCalculator.CalculateTransactionMass(transaction, daaScore >= v.hfDAAScore)
+	transaction.Mass = v.txMassCalculator.CalculateTransactionMass(transaction)
 }

domain/consensus/processes/transactionvalidator/transaction_in_context.go

@@ -90,12 +90,7 @@ func (v *transactionValidator) ValidateTransactionInContextAndPopulateFee(stagin
 		return err
 	}
 
-	daaScore, err := v.daaBlocksStore.DAAScore(v.databaseContext, stagingArea, povBlockHash)
+	err = v.validateTransactionSigOpCounts(tx)
-	if err != nil {
-		return err
-	}
-
-	err = v.validateTransactionSigOpCounts(tx, daaScore >= v.hfDAAScore)
 	if err != nil {
 		return err
 	}
@@ -346,7 +341,7 @@ func (v *transactionValidator) sequenceLockActive(sequenceLock *sequenceLock, bl
 	return true
 }
 
-func (v *transactionValidator) validateTransactionSigOpCounts(tx *externalapi.DomainTransaction, postHF bool) error {
+func (v *transactionValidator) validateTransactionSigOpCounts(tx *externalapi.DomainTransaction) error {
 	for i, input := range tx.Inputs {
 		utxoEntry := input.UTXOEntry
 
@@ -356,20 +351,11 @@ func (v *transactionValidator) validateTransactionSigOpCounts(tx *externalapi.Do
 		isP2SH := txscript.IsPayToScriptHash(utxoEntry.ScriptPublicKey())
 		sigOpCount := txscript.GetPreciseSigOpCount(sigScript, utxoEntry.ScriptPublicKey(), isP2SH)
 
-		if postHF {
 		if sigOpCount != int(input.SigOpCount) {
 			return errors.Wrapf(ruleerrors.ErrWrongSigOpCount,
 				"input %d specifies SigOpCount %d while actual SigOpCount is %d",
 				i, input.SigOpCount, sigOpCount)
 		}
-		} else {
-			const sigOpCountLimit = 10
-			if sigOpCount > sigOpCountLimit {
-				return errors.Wrapf(ruleerrors.ErrWrongSigOpCount,
-					"input %d is using SigOpCount %d while the limit is %d",
-					i, sigOpCount, sigOpCountLimit)
-			}
-		}
 	}
 	return nil
 }

domain/consensus/processes/transactionvalidator/transaction_in_isolation.go

@@ -23,7 +23,7 @@ func (v *transactionValidator) ValidateTransactionInIsolation(tx *externalapi.Do
 	if err != nil {
 		return err
 	}
-	err = v.checkCoinbaseInIsolation(tx, povDAAScore >= v.hfDAAScore)
+	err = v.checkCoinbaseInIsolation(tx)
 	if err != nil {
 		return err
 	}
@@ -114,7 +114,7 @@ func (v *transactionValidator) checkDuplicateTransactionInputs(tx *externalapi.D
 	return nil
 }
 
-func (v *transactionValidator) checkCoinbaseInIsolation(tx *externalapi.DomainTransaction, postHF bool) error {
+func (v *transactionValidator) checkCoinbaseInIsolation(tx *externalapi.DomainTransaction) error {
 	if !transactionhelper.IsCoinBase(tx) {
 		return nil
 	}
@@ -127,7 +127,6 @@ func (v *transactionValidator) checkCoinbaseInIsolation(tx *externalapi.DomainTr
 			payloadLen, v.maxCoinbasePayloadLength)
 	}
 
-	if postHF {
 	if len(tx.Inputs) != 0 {
 		return errors.Wrap(ruleerrors.ErrCoinbaseWithInputs, "coinbase has inputs")
 	}
@@ -143,7 +142,6 @@ func (v *transactionValidator) checkCoinbaseInIsolation(tx *externalapi.DomainTr
 
 		}
 	}
-	}
 
 	return nil
 }

domain/consensus/processes/transactionvalidator/transaction_in_isolation_test.go

@@ -22,7 +22,6 @@ type txSubnetworkData struct {
 func TestValidateTransactionInIsolationAndPopulateMass(t *testing.T) {
 	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
 		cfg := *consensusConfig
-		cfg.HFDAAScore = 1000
 
 		factory := consensus.NewFactory()
 		tc, teardown, err := factory.NewTestConsensus(&cfg, "TestValidateTransactionInIsolationAndPopulateMass")
@@ -70,22 +69,14 @@ func TestValidateTransactionInIsolationAndPopulateMass(t *testing.T) {
 				nil,
 				func(tx *externalapi.DomainTransaction) { tx.Inputs[1].PreviousOutpoint.Index = 0 },
 				ruleerrors.ErrDuplicateTxInputs, 0},
-			{"1 input coinbase - pre HF",
+			{"1 input coinbase",
 				1,
 				1,
 				1,
 				subnetworks.SubnetworkIDNative,
 				&txSubnetworkData{subnetworks.SubnetworkIDCoinbase, 0, nil},
 				nil,
-				nil, 0},
+				ruleerrors.ErrCoinbaseWithInputs, 0},
-			{"1 input coinbase - post HF",
-				1,
-				1,
-				1,
-				subnetworks.SubnetworkIDNative,
-				&txSubnetworkData{subnetworks.SubnetworkIDCoinbase, 0, nil},
-				nil,
-				ruleerrors.ErrCoinbaseWithInputs, cfg.HFDAAScore},
 			{"no inputs coinbase",
 				0,
 				1,

domain/consensus/processes/transactionvalidator/transactionvalidator.go

@@ -19,7 +19,6 @@ type transactionValidator struct {
 	daaBlocksStore                          model.DAABlocksStore
 	enableNonNativeSubnetworks              bool
 	maxCoinbasePayloadLength                uint64
-	hfDAAScore                              uint64
 	ghostdagK                               externalapi.KType
 	coinbasePayloadScriptPublicKeyMaxLength uint8
 	sigCache                                *txscript.SigCache
@@ -31,7 +30,6 @@ type transactionValidator struct {
 func New(blockCoinbaseMaturity uint64,
 	enableNonNativeSubnetworks bool,
 	maxCoinbasePayloadLength uint64,
-	hfDAAScore uint64,
 	ghostdagK externalapi.KType,
 	coinbasePayloadScriptPublicKeyMaxLength uint8,
 	databaseContext model.DBReader,
@@ -44,7 +42,6 @@ func New(blockCoinbaseMaturity uint64,
 		blockCoinbaseMaturity:                   blockCoinbaseMaturity,
 		enableNonNativeSubnetworks:              enableNonNativeSubnetworks,
 		maxCoinbasePayloadLength:                maxCoinbasePayloadLength,
-		hfDAAScore:                              hfDAAScore,
 		ghostdagK:                               ghostdagK,
 		coinbasePayloadScriptPublicKeyMaxLength: coinbasePayloadScriptPublicKeyMaxLength,
 		databaseContext:                         databaseContext,

domain/consensus/ruleerrors/rule_error.go

@@ -244,7 +244,6 @@ var (
 	ErrCoinbaseWithInputs                             = newRuleError("ErrCoinbaseWithInputs")
 	ErrCoinbaseTooManyOutputs                         = newRuleError("ErrCoinbaseTooManyOutputs")
 	ErrCoinbaseTooLongScriptPublicKey                 = newRuleError("ErrCoinbaseTooLongScriptPublicKey")
-	ErrOverMaxBlockInputsPreHF                        = newRuleError("ErrOverMaxBlockInputsPreHF")
 )
 
 // RuleError identifies a rule violation. It is used to indicate that

domain/consensus/utils/consensushashing/transaction.go

@@ -23,11 +23,11 @@ const (
 )
 
 // TransactionHash returns the transaction hash.
-func TransactionHash(tx *externalapi.DomainTransaction, postHF bool) *externalapi.DomainHash {
+func TransactionHash(tx *externalapi.DomainTransaction) *externalapi.DomainHash {
 	// Encode the header and hash everything prior to the number of
 	// transactions.
 	writer := hashes.NewTransactionHashWriter()
-	err := serializeTransaction(writer, tx, txEncodingFull, postHF)
+	err := serializeTransaction(writer, tx, txEncodingFull)
 	if err != nil {
 		// It seems like this could only happen if the writer returned an error.
 		// and this writer should never return an error (no allocations or possible failures)
@@ -52,7 +52,7 @@ func TransactionID(tx *externalapi.DomainTransaction) *externalapi.DomainTransac
 		encodingFlags = txEncodingExcludeSignatureScript
 	}
 	writer := hashes.NewTransactionIDWriter()
-	err := serializeTransaction(writer, tx, encodingFlags, true)
+	err := serializeTransaction(writer, tx, encodingFlags)
 	if err != nil {
 		// this writer never return errors (no allocations or possible failures) so errors can only come from validity checks,
 		// and we assume we never construct malformed transactions.
@@ -74,7 +74,7 @@ func TransactionIDs(txs []*externalapi.DomainTransaction) []*externalapi.DomainT
 	return txIDs
 }
 
-func serializeTransaction(w io.Writer, tx *externalapi.DomainTransaction, encodingFlags txEncoding, postHF bool) error {
+func serializeTransaction(w io.Writer, tx *externalapi.DomainTransaction, encodingFlags txEncoding) error {
 	err := binaryserializer.PutUint16(w, tx.Version)
 	if err != nil {
 		return err
@@ -87,7 +87,7 @@ func serializeTransaction(w io.Writer, tx *externalapi.DomainTransaction, encodi
 	}
 
 	for _, ti := range tx.Inputs {
-		err = writeTransactionInput(w, ti, encodingFlags, postHF)
+		err = writeTransactionInput(w, ti, encodingFlags)
 		if err != nil {
 			return err
 		}
@@ -131,7 +131,7 @@ func serializeTransaction(w io.Writer, tx *externalapi.DomainTransaction, encodi
 
 // writeTransactionInput encodes ti to the kaspa protocol encoding for a transaction
 // input to w.
-func writeTransactionInput(w io.Writer, ti *externalapi.DomainTransactionInput, encodingFlags txEncoding, postHF bool) error {
+func writeTransactionInput(w io.Writer, ti *externalapi.DomainTransactionInput, encodingFlags txEncoding) error {
 	err := writeOutpoint(w, &ti.PreviousOutpoint)
 	if err != nil {
 		return err
@@ -143,12 +143,10 @@ func writeTransactionInput(w io.Writer, ti *externalapi.DomainTransactionInput,
 			return err
 		}
 
-		if postHF {
 		_, err = w.Write([]byte{ti.SigOpCount})
 		if err != nil {
 			return err
 		}
-		}
 	} else {
 		err = writeVarBytes(w, []byte{})
 		if err != nil {

domain/consensus/utils/constants/constants.go

@@ -38,7 +38,4 @@ const (
 	// UnacceptedDAAScore is used to for UTXOEntries that were created by transactions in the mempool, or otherwise
 	// not-yet-accepted transactions.
 	UnacceptedDAAScore = math.MaxUint64
-
-	// MaxBlockInputsPreHF is the maximum number of inputs a block can hold before the HF
-	MaxBlockInputsPreHF = 900
 )

domain/consensus/utils/merkle/merkle.go

@@ -37,10 +37,10 @@ func hashMerkleBranches(left, right *externalapi.DomainHash) *externalapi.Domain
 
 // CalculateHashMerkleRoot calculates the merkle root of a tree consisted of the given transaction hashes.
 // See `merkleRoot` for more info.
-func CalculateHashMerkleRoot(transactions []*externalapi.DomainTransaction, postHF bool) *externalapi.DomainHash {
+func CalculateHashMerkleRoot(transactions []*externalapi.DomainTransaction) *externalapi.DomainHash {
 	txHashes := make([]*externalapi.DomainHash, len(transactions))
 	for i, tx := range transactions {
-		txHashes[i] = consensushashing.TransactionHash(tx, postHF)
+		txHashes[i] = consensushashing.TransactionHash(tx)
 	}
 	return merkleRoot(txHashes)
 }

domain/dagconfig/params.go

@@ -188,8 +188,6 @@ type Params struct {
 	MaxBlockLevel int
 
 	MergeDepth uint64
-
-	HFDAAScore uint64
 }
 
 // NormalizeRPCServerAddress returns addr with the current network default
@@ -290,8 +288,6 @@ var MainnetParams = Params{
 	// This means that any block that has a level lower or equal to genesis will be level 0.
 	MaxBlockLevel: 225,
 	MergeDepth:    defaultMergeDepth,
-
-	HFDAAScore: 27905000,
 }
 
 // TestnetParams defines the network parameters for the test Kaspa network.
@@ -354,7 +350,6 @@ var TestnetParams = Params{
 
 	MaxBlockLevel: 250,
 	MergeDepth:    defaultMergeDepth,
-	HFDAAScore:    14106400,
 }
 
 // SimnetParams defines the network parameters for the simulation test Kaspa

domain/miningmanager/blocktemplatebuilder/blocktemplatebuilder.go

@@ -37,19 +37,17 @@ type blockTemplateBuilder struct {
 	policy             policy
 
 	coinbasePayloadScriptPublicKeyMaxLength uint8
-	hfDAAScore                              uint64
 }
 
 // New creates a new blockTemplateBuilder
 func New(consensusReference consensusreference.ConsensusReference, mempool miningmanagerapi.Mempool,
-	blockMaxMass uint64, coinbasePayloadScriptPublicKeyMaxLength uint8, hfDAAScore uint64) miningmanagerapi.BlockTemplateBuilder {
+	blockMaxMass uint64, coinbasePayloadScriptPublicKeyMaxLength uint8) miningmanagerapi.BlockTemplateBuilder {
 	return &blockTemplateBuilder{
 		consensusReference: consensusReference,
 		mempool:            mempool,
 		policy:             policy{BlockMaxMass: blockMaxMass},
 
 		coinbasePayloadScriptPublicKeyMaxLength: coinbasePayloadScriptPublicKeyMaxLength,
-		hfDAAScore:                              hfDAAScore,
 	}
 }
 
@@ -192,7 +190,7 @@ func (btb *blockTemplateBuilder) ModifyBlockTemplate(newCoinbaseData *consensuse
 	// Update the hash merkle root according to the modified transactions
 	mutableHeader := blockTemplateToModify.Block.Header.ToMutable()
 	// TODO: can be optimized to O(log(#transactions)) by caching the whole merkle tree in BlockTemplate and changing only the relevant path
-	mutableHeader.SetHashMerkleRoot(merkle.CalculateHashMerkleRoot(blockTemplateToModify.Block.Transactions, mutableHeader.DAAScore() >= btb.hfDAAScore))
+	mutableHeader.SetHashMerkleRoot(merkle.CalculateHashMerkleRoot(blockTemplateToModify.Block.Transactions))
 
 	newTimestamp := mstime.Now().UnixMilliseconds()
 	if newTimestamp >= mutableHeader.TimeInMilliseconds() {

domain/miningmanager/blocktemplatebuilder/txselection.go

@@ -1,7 +1,6 @@
 package blocktemplatebuilder
 
 import (
-	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
 	"math"
 	"math/rand"
 	"sort"
@@ -75,8 +74,6 @@ func (btb *blockTemplateBuilder) selectTransactions(candidateTxs []*candidateTx)
 		usedP += candidateTx.p
 	}
 
-	totalInputs := 0
-
 	selectedTxs := make([]*candidateTx, 0)
 	for len(candidateTxs)-usedCount > 0 {
 		// Rebalance the candidates if it's required
@@ -102,10 +99,6 @@ func (btb *blockTemplateBuilder) selectTransactions(candidateTxs []*candidateTx)
 		}
 		tx := selectedTx.DomainTransaction
 
-		if totalInputs+len(tx.Inputs) > maxBlockInputsPreHF(btb.hfDAAScore) {
-			continue
-		}
-
 		// Enforce maximum transaction mass per block. Also check
 		// for overflow.
 		if txsForBlockTemplate.totalMass+selectedTx.Mass < txsForBlockTemplate.totalMass ||
@@ -150,7 +143,6 @@ func (btb *blockTemplateBuilder) selectTransactions(candidateTxs []*candidateTx)
 		// save the masses, fees, and signature operation counts to the
 		// result.
 		selectedTxs = append(selectedTxs, selectedTx)
-		totalInputs += len(selectedTx.Inputs)
 		txsForBlockTemplate.totalMass += selectedTx.Mass
 		txsForBlockTemplate.totalFees += selectedTx.Fee
 
@@ -158,10 +150,6 @@ func (btb *blockTemplateBuilder) selectTransactions(candidateTxs []*candidateTx)
 			consensushashing.TransactionID(tx), selectedTx.Fee*1e6/selectedTx.Mass)
 
 		markCandidateTxForDeletion(selectedTx)
-
-		if totalInputs == maxBlockInputsPreHF(btb.hfDAAScore) {
-			break
-		}
 	}
 
 	sort.Slice(selectedTxs, func(i, j int) bool {
@@ -175,10 +163,6 @@ func (btb *blockTemplateBuilder) selectTransactions(candidateTxs []*candidateTx)
 	return txsForBlockTemplate
 }
 
-func maxBlockInputsPreHF(hfDAAScore uint64) int {
-	return constants.MaxBlockInputsPreHF
-}
-
 func rebalanceCandidates(oldCandidateTxs []*candidateTx, isFirstRun bool) (
 	candidateTxs []*candidateTx, totalP float64) {
 

domain/miningmanager/factory.go

@@ -21,7 +21,7 @@ func (f *factory) NewMiningManager(consensusReference consensusreference.Consens
 	mempoolConfig *mempoolpkg.Config) MiningManager {
 
 	mempool := mempoolpkg.New(mempoolConfig, consensusReference)
-	blockTemplateBuilder := blocktemplatebuilder.New(consensusReference, mempool, params.MaxBlockMass, params.CoinbasePayloadScriptPublicKeyMaxLength, params.HFDAAScore)
+	blockTemplateBuilder := blocktemplatebuilder.New(consensusReference, mempool, params.MaxBlockMass, params.CoinbasePayloadScriptPublicKeyMaxLength)
 
 	return &miningManager{
 		consensusReference:   consensusReference,

util/txmass/calculator.go

@@ -31,7 +31,7 @@ func (c *Calculator) MassPerScriptPubKeyByte() uint64 { return c.massPerScriptPu
 func (c *Calculator) MassPerSigOp() uint64 { return c.massPerSigOp }
 
 // CalculateTransactionMass calculates the mass of the given transaction
-func (c *Calculator) CalculateTransactionMass(transaction *externalapi.DomainTransaction, postHF bool) uint64 {
+func (c *Calculator) CalculateTransactionMass(transaction *externalapi.DomainTransaction) uint64 {
 	if transactionhelper.IsCoinBase(transaction) {
 		return 0
 	}
@@ -49,14 +49,11 @@ func (c *Calculator) CalculateTransactionMass(transaction *externalapi.DomainTra
 	massForScriptPubKey := totalScriptPubKeySize * c.massPerScriptPubKeyByte
 
 	// calculate mass for SigOps
-	massForSigOps := uint64(0)
-	if postHF {
 	totalSigOpCount := uint64(0)
 	for _, input := range transaction.Inputs {
 		totalSigOpCount += uint64(input.SigOpCount)
 	}
-		massForSigOps = totalSigOpCount * c.massPerSigOp
+	massForSigOps := totalSigOpCount * c.massPerSigOp
-	}
 
 	// Sum all components of mass
 	return massForSize + massForScriptPubKey + massForSigOps