diff --git a/app/appmessage/rpc_estimate_network_hashes_per_second.go b/app/appmessage/rpc_estimate_network_hashes_per_second.go
index 48fe6c46e..d298c91bc 100644
--- a/app/appmessage/rpc_estimate_network_hashes_per_second.go
+++ b/app/appmessage/rpc_estimate_network_hashes_per_second.go
@@ -4,6 +4,7 @@ package appmessage
 // its respective RPC message
 type EstimateNetworkHashesPerSecondRequestMessage struct {
 	baseMessage
+	StartHash  string
 	WindowSize uint32
 }
 
@@ -13,8 +14,9 @@ func (msg *EstimateNetworkHashesPerSecondRequestMessage) Command() MessageComman
 }
 
 // NewEstimateNetworkHashesPerSecondRequestMessage returns a instance of the message
-func NewEstimateNetworkHashesPerSecondRequestMessage(windowSize uint32) *EstimateNetworkHashesPerSecondRequestMessage {
+func NewEstimateNetworkHashesPerSecondRequestMessage(startHash string, windowSize uint32) *EstimateNetworkHashesPerSecondRequestMessage {
 	return &EstimateNetworkHashesPerSecondRequestMessage{
+		StartHash:  startHash,
 		WindowSize: windowSize,
 	}
 }
diff --git a/app/protocol/flows/testing/handle_relay_invs_test.go b/app/protocol/flows/testing/handle_relay_invs_test.go
index cf753ab36..230638a01 100644
--- a/app/protocol/flows/testing/handle_relay_invs_test.go
+++ b/app/protocol/flows/testing/handle_relay_invs_test.go
@@ -130,7 +130,7 @@ type fakeRelayInvsContext struct {
 	rwLock                                        sync.RWMutex
 }
 
-func (f *fakeRelayInvsContext) EstimateNetworkHashesPerSecond(windowSize int) (uint64, error) {
+func (f *fakeRelayInvsContext) EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
 	panic(errors.Errorf("called unimplemented function from test '%s'", f.testName))
 }
 
diff --git a/app/rpc/rpchandlers/estimate_network_hashes_per_second.go b/app/rpc/rpchandlers/estimate_network_hashes_per_second.go
index 41e359a5f..505c62b2a 100644
--- a/app/rpc/rpchandlers/estimate_network_hashes_per_second.go
+++ b/app/rpc/rpchandlers/estimate_network_hashes_per_second.go
@@ -3,19 +3,35 @@ package rpchandlers
 import (
 	"github.com/kaspanet/kaspad/app/appmessage"
 	"github.com/kaspanet/kaspad/app/rpc/rpccontext"
+	"github.com/kaspanet/kaspad/domain/consensus/model"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/infrastructure/network/netadapter/router"
 )
 
 // HandleEstimateNetworkHashesPerSecond handles the respectively named RPC command
-func HandleEstimateNetworkHashesPerSecond(context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
+func HandleEstimateNetworkHashesPerSecond(
+	context *rpccontext.Context, _ *router.Router, request appmessage.Message) (appmessage.Message, error) {
+
 	estimateNetworkHashesPerSecondRequest := request.(*appmessage.EstimateNetworkHashesPerSecondRequestMessage)
 
 	windowSize := int(estimateNetworkHashesPerSecondRequest.WindowSize)
-	networkHashesPerSecond, err := context.Domain.Consensus().EstimateNetworkHashesPerSecond(windowSize)
+	startHash := model.VirtualBlockHash
+	if estimateNetworkHashesPerSecondRequest.StartHash != "" {
+		var err error
+		startHash, err = externalapi.NewDomainHashFromString(estimateNetworkHashesPerSecondRequest.StartHash)
+		if err != nil {
+			response := &appmessage.EstimateNetworkHashesPerSecondResponseMessage{}
+			response.Error = appmessage.RPCErrorf("StartHash '%s' is not a valid block hash",
+				estimateNetworkHashesPerSecondRequest.StartHash)
+			return response, nil
+		}
+	}
+
+	networkHashesPerSecond, err := context.Domain.Consensus().EstimateNetworkHashesPerSecond(startHash, windowSize)
 	if err != nil {
 		response := &appmessage.EstimateNetworkHashesPerSecondResponseMessage{}
 		response.Error = appmessage.RPCErrorf("could not resolve network hashes per "+
-			"second for window size %d: %s", windowSize, err)
+			"second for startHash %s and window size %d: %s", startHash, windowSize, err)
 		return response, nil
 	}
 
diff --git a/cmd/kaspactl/command_parser.go b/cmd/kaspactl/command_parser.go
index ee74bfc6b..6c174d9df 100644
--- a/cmd/kaspactl/command_parser.go
+++ b/cmd/kaspactl/command_parser.go
@@ -48,6 +48,10 @@ func setField(commandValue reflect.Value, parameterValue reflect.Value, paramete
 }
 
 func stringToValue(parameterDesc *parameterDescription, valueStr string) (reflect.Value, error) {
+	if valueStr == "-" {
+		return reflect.Zero(parameterDesc.typeof), nil
+	}
+
 	var value interface{}
 	var err error
 	switch parameterDesc.typeof.Kind() {
diff --git a/cmd/kaspactl/config.go b/cmd/kaspactl/config.go
index 0b240529a..7053d4573 100644
--- a/cmd/kaspactl/config.go
+++ b/cmd/kaspactl/config.go
@@ -27,7 +27,8 @@ func parseConfig() (*configFlags, error) {
 	}
 	parser := flags.NewParser(cfg, flags.HelpFlag)
 	parser.Usage = "kaspactl [OPTIONS] [COMMAND] [COMMAND PARAMETERS].\n\nCommand can be supplied only if --json is not used." +
-		"\n\nUse `kaspactl --list-commands` to get a list of all commands and their parameters"
+		"\n\nUse `kaspactl --list-commands` to get a list of all commands and their parameters." +
+		"\nFor optional parameters- use '-' without quotes to not pass the parameter.\n"
 	remainingArgs, err := parser.Parse()
 	if err != nil {
 		return nil, err
diff --git a/cmd/kaspawallet/daemon/server/log.go b/cmd/kaspawallet/daemon/server/log.go
index b58080a29..82a77a34a 100644
--- a/cmd/kaspawallet/daemon/server/log.go
+++ b/cmd/kaspawallet/daemon/server/log.go
@@ -1,6 +1,12 @@
 package server
 
 import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/kaspanet/kaspad/util"
+
 	"github.com/kaspanet/kaspad/infrastructure/logger"
 	"github.com/kaspanet/kaspad/util/panics"
 )
@@ -9,4 +15,33 @@ var (
 	backendLog = logger.NewBackend()
 	log        = backendLog.Logger("KSWD")
 	spawn      = panics.GoroutineWrapperFunc(log)
+
+	defaultAppDir     = util.AppDir("kaspawallet", false)
+	defaultLogFile    = filepath.Join(defaultAppDir, "daemon.log")
+	defaultErrLogFile = filepath.Join(defaultAppDir, "daemon_err.log")
 )
+
+func initLog(logFile, errLogFile string) {
+	log.SetLevel(logger.LevelDebug)
+	err := backendLog.AddLogFile(logFile, logger.LevelTrace)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding log file %s as log rotator for level %s: %s", logFile, logger.LevelTrace, err)
+		os.Exit(1)
+	}
+	err = backendLog.AddLogFile(errLogFile, logger.LevelWarn)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding log file %s as log rotator for level %s: %s", errLogFile, logger.LevelWarn, err)
+		os.Exit(1)
+	}
+	err = backendLog.AddLogWriter(os.Stdout, logger.LevelInfo)
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error adding stdout to the loggerfor level %s: %s", logger.LevelWarn, err)
+		os.Exit(1)
+	}
+	err = backendLog.Run()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "Error starting the logger: %s ", err)
+		os.Exit(1)
+	}
+
+}
diff --git a/cmd/kaspawallet/daemon/server/server.go b/cmd/kaspawallet/daemon/server/server.go
index bf5090161..c2cf8cbe2 100644
--- a/cmd/kaspawallet/daemon/server/server.go
+++ b/cmd/kaspawallet/daemon/server/server.go
@@ -2,6 +2,11 @@ package server
 
 import (
 	"fmt"
+	"net"
+	"os"
+	"sync"
+	"time"
+
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/daemon/pb"
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/keys"
 	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
@@ -10,10 +15,6 @@ import (
 	"github.com/kaspanet/kaspad/infrastructure/os/signal"
 	"github.com/kaspanet/kaspad/util/panics"
 	"github.com/pkg/errors"
-	"net"
-	"os"
-	"sync"
-	"time"
 
 	"google.golang.org/grpc"
 )
@@ -33,6 +34,8 @@ type server struct {
 
 // Start starts the kaspawalletd server
 func Start(params *dagconfig.Params, listen, rpcServer string, keysFilePath string) error {
+	initLog(defaultLogFile, defaultErrLogFile)
+
 	defer panics.HandlePanic(log, "MAIN", nil)
 	interrupt := signal.InterruptListener()
 
@@ -40,6 +43,7 @@ func Start(params *dagconfig.Params, listen, rpcServer string, keysFilePath stri
 	if err != nil {
 		return (errors.Wrapf(err, "Error listening to tcp at %s", listen))
 	}
+	log.Infof("Listening on %s", listen)
 
 	rpcClient, err := connectToRPC(params, rpcServer)
 	if err != nil {
diff --git a/cmd/kaspawallet/libkaspawallet/bip39.go b/cmd/kaspawallet/libkaspawallet/bip39.go
index a64667fa8..53acda51b 100644
--- a/cmd/kaspawallet/libkaspawallet/bip39.go
+++ b/cmd/kaspawallet/libkaspawallet/bip39.go
@@ -2,6 +2,7 @@ package libkaspawallet
 
 import (
 	"fmt"
+
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
 	"github.com/kaspanet/kaspad/domain/dagconfig"
 	"github.com/pkg/errors"
@@ -15,23 +16,23 @@ func CreateMnemonic() (string, error) {
 	return bip39.NewMnemonic(entropy)
 }
 
+// Purpose and CoinType constants
+const (
+	SingleSignerPurpose = 44
+	// Note: this is not entirely compatible to BIP 45 since
+	// BIP 45 doesn't have a coin type in its derivation path.
+	MultiSigPurpose = 45
+	// TODO: Register the coin type in https://github.com/satoshilabs/slips/blob/master/slip-0044.md
+	CoinType = 111111
+)
+
 func defaultPath(isMultisig bool) string {
-	const (
-		singleSignerPurpose = 44
-
-		// Note: this is not entirely compatible to BIP 45 since
-		// BIP 45 doesn't have a coin type in its derivation path.
-		multiSigPurpose = 45
-	)
-
-	purpose := singleSignerPurpose
+	purpose := SingleSignerPurpose
 	if isMultisig {
-		purpose = multiSigPurpose
+		purpose = MultiSigPurpose
 	}
 
-	// TODO: Register the coin type in https://github.com/satoshilabs/slips/blob/master/slip-0044.md
-	const coinType = 111111
-	return fmt.Sprintf("m/%d'/%d'/0'", coinType, purpose)
+	return fmt.Sprintf("m/%d'/%d'/0'", purpose, CoinType)
 }
 
 // MasterPublicKeyFromMnemonic returns the master public key with the correct derivation for the given mnemonic.
diff --git a/cmd/kaspawallet/libkaspawallet/keypair.go b/cmd/kaspawallet/libkaspawallet/keypair.go
index bf4b69f51..41c99de36 100644
--- a/cmd/kaspawallet/libkaspawallet/keypair.go
+++ b/cmd/kaspawallet/libkaspawallet/keypair.go
@@ -1,14 +1,15 @@
 package libkaspawallet
 
 import (
+	"math"
+	"sort"
+	"strings"
+
 	"github.com/kaspanet/go-secp256k1"
 	"github.com/kaspanet/kaspad/cmd/kaspawallet/libkaspawallet/bip32"
 	"github.com/kaspanet/kaspad/domain/dagconfig"
 	"github.com/kaspanet/kaspad/util"
 	"github.com/pkg/errors"
-	"math"
-	"sort"
-	"strings"
 )
 
 // CreateKeyPair generates a private-public key pair
diff --git a/cmd/kaspawallet/utils/readline.go b/cmd/kaspawallet/utils/readline.go
index 90342edce..7b83cb0b8 100644
--- a/cmd/kaspawallet/utils/readline.go
+++ b/cmd/kaspawallet/utils/readline.go
@@ -3,13 +3,15 @@ package utils
 import (
 	"bufio"
 	"strings"
+
+	"github.com/pkg/errors"
 )
 
 // ReadLine reads one line from the given reader with trimmed white space.
 func ReadLine(reader *bufio.Reader) (string, error) {
 	line, err := reader.ReadBytes('\n')
 	if err != nil {
-		return "", err
+		return "", errors.WithStack(err)
 	}
 
 	return strings.TrimSpace(string(line)), nil
diff --git a/domain/consensus/consensus.go b/domain/consensus/consensus.go
index fa0d7c1b7..425a9b808 100644
--- a/domain/consensus/consensus.go
+++ b/domain/consensus/consensus.go
@@ -536,9 +536,9 @@ func (s *consensus) Anticone(blockHash *externalapi.DomainHash) ([]*externalapi.
 	return s.dagTraversalManager.Anticone(stagingArea, blockHash)
 }
 
-func (s *consensus) EstimateNetworkHashesPerSecond(windowSize int) (uint64, error) {
+func (s *consensus) EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
 	s.lock.Lock()
 	defer s.lock.Unlock()
 
-	return s.difficultyManager.EstimateNetworkHashesPerSecond(windowSize)
+	return s.difficultyManager.EstimateNetworkHashesPerSecond(startHash, windowSize)
 }
diff --git a/domain/consensus/model/externalapi/consensus.go b/domain/consensus/model/externalapi/consensus.go
index 64075cf39..c565a0f90 100644
--- a/domain/consensus/model/externalapi/consensus.go
+++ b/domain/consensus/model/externalapi/consensus.go
@@ -33,5 +33,5 @@ type Consensus interface {
 	IsInSelectedParentChainOf(blockHashA *DomainHash, blockHashB *DomainHash) (bool, error)
 	GetHeadersSelectedTip() (*DomainHash, error)
 	Anticone(blockHash *DomainHash) ([]*DomainHash, error)
-	EstimateNetworkHashesPerSecond(windowSize int) (uint64, error)
+	EstimateNetworkHashesPerSecond(startHash *DomainHash, windowSize int) (uint64, error)
 }
diff --git a/domain/consensus/model/ghostdag.go b/domain/consensus/model/ghostdag.go
index 5b77cd83d..4ebe4372e 100644
--- a/domain/consensus/model/ghostdag.go
+++ b/domain/consensus/model/ghostdag.go
@@ -67,13 +67,3 @@ func (bgd *BlockGHOSTDAGData) MergeSetReds() []*externalapi.DomainHash {
 func (bgd *BlockGHOSTDAGData) BluesAnticoneSizes() map[externalapi.DomainHash]KType {
 	return bgd.bluesAnticoneSizes
 }
-
-// MergeSet returns the whole MergeSet of the block (equivalent to MergeSetBlues+MergeSetReds)
-func (bgd *BlockGHOSTDAGData) MergeSet() []*externalapi.DomainHash {
-	mergeSet := make([]*externalapi.DomainHash, len(bgd.mergeSetBlues)+len(bgd.mergeSetReds))
-	copy(mergeSet, bgd.mergeSetBlues)
-	if len(bgd.mergeSetReds) > 0 {
-		copy(mergeSet[len(bgd.mergeSetBlues):], bgd.mergeSetReds)
-	}
-	return mergeSet
-}
diff --git a/domain/consensus/model/interface_processes_difficultymanager.go b/domain/consensus/model/interface_processes_difficultymanager.go
index 999e74ec0..704b0b929 100644
--- a/domain/consensus/model/interface_processes_difficultymanager.go
+++ b/domain/consensus/model/interface_processes_difficultymanager.go
@@ -9,5 +9,5 @@ import (
 type DifficultyManager interface {
 	StageDAADataAndReturnRequiredDifficulty(stagingArea *StagingArea, blockHash *externalapi.DomainHash) (uint32, error)
 	RequiredDifficulty(stagingArea *StagingArea, blockHash *externalapi.DomainHash) (uint32, error)
-	EstimateNetworkHashesPerSecond(windowSize int) (uint64, error)
+	EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error)
 }
diff --git a/domain/consensus/model/interface_processes_ghostdagmanager.go b/domain/consensus/model/interface_processes_ghostdagmanager.go
index be831c488..95025696a 100644
--- a/domain/consensus/model/interface_processes_ghostdagmanager.go
+++ b/domain/consensus/model/interface_processes_ghostdagmanager.go
@@ -8,4 +8,5 @@ type GHOSTDAGManager interface {
 	ChooseSelectedParent(stagingArea *StagingArea, blockHashes ...*externalapi.DomainHash) (*externalapi.DomainHash, error)
 	Less(blockHashA *externalapi.DomainHash, ghostdagDataA *BlockGHOSTDAGData,
 		blockHashB *externalapi.DomainHash, ghostdagDataB *BlockGHOSTDAGData) bool
+	GetSortedMergeSet(stagingArea *StagingArea, current *externalapi.DomainHash) ([]*externalapi.DomainHash, error)
 }
diff --git a/domain/consensus/processes/blockvalidator/block_header_in_context.go b/domain/consensus/processes/blockvalidator/block_header_in_context.go
index 71fe0be8b..957295c2c 100644
--- a/domain/consensus/processes/blockvalidator/block_header_in_context.go
+++ b/domain/consensus/processes/blockvalidator/block_header_in_context.go
@@ -147,7 +147,7 @@ func (v *blockValidator) checkMergeSizeLimit(stagingArea *model.StagingArea, has
 		return err
 	}
 
-	mergeSetSize := len(ghostdagData.MergeSet())
+	mergeSetSize := len(ghostdagData.MergeSetBlues()) + len(ghostdagData.MergeSetReds())
 
 	if uint64(mergeSetSize) > v.mergeSetSizeLimit {
 		return errors.Wrapf(ruleerrors.ErrViolatingMergeLimit,
diff --git a/domain/consensus/processes/blockvalidator/pruning_violation_proof_of_work_and_difficulty_test.go b/domain/consensus/processes/blockvalidator/pruning_violation_proof_of_work_and_difficulty_test.go
index 73b595774..972c8259a 100644
--- a/domain/consensus/processes/blockvalidator/pruning_violation_proof_of_work_and_difficulty_test.go
+++ b/domain/consensus/processes/blockvalidator/pruning_violation_proof_of_work_and_difficulty_test.go
@@ -313,6 +313,6 @@ func (dm *mocDifficultyManager) StageDAADataAndReturnRequiredDifficulty(stagingA
 	return dm.testDifficulty, nil
 }
 
-func (dm *mocDifficultyManager) EstimateNetworkHashesPerSecond(windowSize int) (uint64, error) {
+func (dm *mocDifficultyManager) EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
 	return 0, nil
 }
diff --git a/domain/consensus/processes/coinbasemanager/coinbasemanager.go b/domain/consensus/processes/coinbasemanager/coinbasemanager.go
index a19e739ec..61230429d 100644
--- a/domain/consensus/processes/coinbasemanager/coinbasemanager.go
+++ b/domain/consensus/processes/coinbasemanager/coinbasemanager.go
@@ -39,8 +39,9 @@ func (c *coinbaseManager) ExpectedCoinbaseTransaction(stagingArea *model.Staging
 	}
 
 	txOuts := make([]*externalapi.DomainTransactionOutput, 0, len(ghostdagData.MergeSetBlues()))
-	for i, blue := range ghostdagData.MergeSetBlues() {
-		txOut, hasReward, err := c.coinbaseOutputForBlueBlock(stagingArea, blue, acceptanceData[i], daaAddedBlocksSet)
+	acceptanceDataMap := acceptanceDataFromArrayToMap(acceptanceData)
+	for _, blue := range ghostdagData.MergeSetBlues() {
+		txOut, hasReward, err := c.coinbaseOutputForBlueBlock(stagingArea, blue, acceptanceDataMap[*blue], daaAddedBlocksSet)
 		if err != nil {
 			return nil, err
 		}
@@ -120,10 +121,10 @@ func (c *coinbaseManager) coinbaseOutputForRewardFromRedBlocks(stagingArea *mode
 	ghostdagData *model.BlockGHOSTDAGData, acceptanceData externalapi.AcceptanceData, daaAddedBlocksSet hashset.HashSet,
 	coinbaseData *externalapi.DomainCoinbaseData) (*externalapi.DomainTransactionOutput, bool, error) {
 
+	acceptanceDataMap := acceptanceDataFromArrayToMap(acceptanceData)
 	totalReward := uint64(0)
-	mergeSetBluesCount := len(ghostdagData.MergeSetBlues())
-	for i, red := range ghostdagData.MergeSetReds() {
-		reward, err := c.calcMergedBlockReward(stagingArea, red, acceptanceData[mergeSetBluesCount+i], daaAddedBlocksSet)
+	for _, red := range ghostdagData.MergeSetReds() {
+		reward, err := c.calcMergedBlockReward(stagingArea, red, acceptanceDataMap[*red], daaAddedBlocksSet)
 		if err != nil {
 			return nil, false, err
 		}
@@ -141,6 +142,14 @@ func (c *coinbaseManager) coinbaseOutputForRewardFromRedBlocks(stagingArea *mode
 	}, true, nil
 }
 
+func acceptanceDataFromArrayToMap(acceptanceData externalapi.AcceptanceData) map[externalapi.DomainHash]*externalapi.BlockAcceptanceData {
+	acceptanceDataMap := make(map[externalapi.DomainHash]*externalapi.BlockAcceptanceData, len(acceptanceData))
+	for _, blockAcceptanceData := range acceptanceData {
+		acceptanceDataMap[*blockAcceptanceData.BlockHash] = blockAcceptanceData
+	}
+	return acceptanceDataMap
+}
+
 // calcBlockSubsidy returns the subsidy amount a block at the provided blue score
 // should have. This is mainly used for determining how much the coinbase for
 // newly generated blocks awards as well as validating the coinbase for blocks
diff --git a/domain/consensus/processes/consensusstatemanager/add_block_to_virtual.go b/domain/consensus/processes/consensusstatemanager/add_block_to_virtual.go
index 629a4bd4b..e4ea5ccbb 100644
--- a/domain/consensus/processes/consensusstatemanager/add_block_to_virtual.go
+++ b/domain/consensus/processes/consensusstatemanager/add_block_to_virtual.go
@@ -129,7 +129,8 @@ func (csm *consensusStateManager) calculateNewTips(
 	if err != nil {
 		return nil, err
 	}
-	log.Debugf("The current tips are: %s", currentTips)
+	log.Debugf("The number of tips is: %d", len(currentTips))
+	log.Tracef("The current tips are: %s", currentTips)
 
 	newTipParents, err := csm.dagTopologyManager.Parents(stagingArea, newTipHash)
 	if err != nil {
@@ -151,7 +152,8 @@ func (csm *consensusStateManager) calculateNewTips(
 			newTips = append(newTips, currentTip)
 		}
 	}
-	log.Debugf("The calculated new tips are: %s", newTips)
+	log.Debugf("The new number of tips is: %d", len(newTips))
+	log.Tracef("The new tips are: %s", newTips)
 
 	return newTips, nil
 }
diff --git a/domain/consensus/processes/consensusstatemanager/calculate_past_utxo.go b/domain/consensus/processes/consensusstatemanager/calculate_past_utxo.go
index d1cb3bb49..e67ed39d0 100644
--- a/domain/consensus/processes/consensusstatemanager/calculate_past_utxo.go
+++ b/domain/consensus/processes/consensusstatemanager/calculate_past_utxo.go
@@ -61,8 +61,7 @@ func (csm *consensusStateManager) calculatePastUTXOAndAcceptanceDataWithSelected
 	}
 
 	log.Debugf("Applying blue blocks to the selected parent past UTXO of block %s", blockHash)
-	acceptanceData, utxoDiff, err := csm.applyMergeSetBlocks(
-		stagingArea, blockHash, selectedParentPastUTXO, blockGHOSTDAGData, daaScore)
+	acceptanceData, utxoDiff, err := csm.applyMergeSetBlocks(stagingArea, blockHash, selectedParentPastUTXO, daaScore)
 	if err != nil {
 		return nil, nil, nil, err
 	}
@@ -136,13 +135,16 @@ func (csm *consensusStateManager) restorePastUTXO(
 }
 
 func (csm *consensusStateManager) applyMergeSetBlocks(stagingArea *model.StagingArea, blockHash *externalapi.DomainHash,
-	selectedParentPastUTXODiff externalapi.UTXODiff, ghostdagData *model.BlockGHOSTDAGData, daaScore uint64) (
+	selectedParentPastUTXODiff externalapi.UTXODiff, daaScore uint64) (
 	externalapi.AcceptanceData, externalapi.MutableUTXODiff, error) {
 
 	log.Debugf("applyMergeSetBlocks start for block %s", blockHash)
 	defer log.Debugf("applyMergeSetBlocks end for block %s", blockHash)
 
-	mergeSetHashes := ghostdagData.MergeSet()
+	mergeSetHashes, err := csm.ghostdagManager.GetSortedMergeSet(stagingArea, blockHash)
+	if err != nil {
+		return nil, nil, err
+	}
 	log.Debugf("Merge set for block %s is %v", blockHash, mergeSetHashes)
 	mergeSetBlocks, err := csm.blockStore.Blocks(csm.databaseContext, stagingArea, mergeSetHashes)
 	if err != nil {
@@ -266,8 +268,7 @@ func (csm *consensusStateManager) maybeAcceptTransaction(stagingArea *model.Stag
 	return true, accumulatedMassAfter, nil
 }
 
-func (csm *consensusStateManager) checkTransactionMass(
-	transaction *externalapi.DomainTransaction, accumulatedMassBefore uint64) (
+func (csm *consensusStateManager) checkTransactionMass(transaction *externalapi.DomainTransaction, accumulatedMassBefore uint64) (
 	isAccepted bool, accumulatedMassAfter uint64) {
 
 	transactionID := consensushashing.TransactionID(transaction)
diff --git a/domain/consensus/processes/consensusstatemanager/pick_virtual_parents.go b/domain/consensus/processes/consensusstatemanager/pick_virtual_parents.go
index c49ddfd83..40be9ed06 100644
--- a/domain/consensus/processes/consensusstatemanager/pick_virtual_parents.go
+++ b/domain/consensus/processes/consensusstatemanager/pick_virtual_parents.go
@@ -2,6 +2,7 @@ package consensusstatemanager
 
 import (
 	"github.com/kaspanet/kaspad/infrastructure/logger"
+	"github.com/kaspanet/kaspad/util/math"
 	"github.com/pkg/errors"
 
 	"github.com/kaspanet/kaspad/domain/consensus/model"
@@ -34,7 +35,16 @@ func (csm *consensusStateManager) pickVirtualParents(stagingArea *model.StagingA
 	}
 	log.Debugf("The selected parent of the virtual is: %s", virtualSelectedParent)
 
-	candidates := candidatesHeap.ToSlice()
+	// Limit to maxBlockParents*3 candidates, that way we don't go over thousands of tips when the network isn't healthy.
+	// There's no specific reason for a factor of 3, and its not a consensus rule, just an estimation saying we probably
+	// don't want to consider and calculate 3 times the amount of candidates for the set of parents.
+	maxCandidates := int(csm.maxBlockParents) * 3
+	candidateAllocationSize := math.MinInt(maxCandidates, candidatesHeap.Len())
+	candidates := make([]*externalapi.DomainHash, 0, candidateAllocationSize)
+	for len(candidates) < maxCandidates && candidatesHeap.Len() > 0 {
+		candidates = append(candidates, candidatesHeap.Pop())
+	}
+
 	// prioritize half the blocks with highest blueWork and half with lowest, so the network will merge splits faster.
 	if len(candidates) >= int(csm.maxBlockParents) {
 		// We already have the selectedParent, so we're left with csm.maxBlockParents-1.
@@ -45,12 +55,6 @@ func (csm *consensusStateManager) pickVirtualParents(stagingArea *model.StagingA
 			end--
 		}
 	}
-	// Limit to maxBlockParents*3 candidates, that way we don't go over thousands of tips when the network isn't healthy.
-	// There's no specific reason for a factor of 3, and its not a consensus rule, just an estimation saying we probably
-	// don't want to consider and calculate 3 times the amount of candidates for the set of parents.
-	if len(candidates) > int(csm.maxBlockParents)*3 {
-		candidates = candidates[:int(csm.maxBlockParents)*3]
-	}
 
 	selectedVirtualParents := []*externalapi.DomainHash{virtualSelectedParent}
 	mergeSetSize := uint64(1) // starts counting from 1 because selectedParent is already in the mergeSet
diff --git a/domain/consensus/processes/consensusstatemanager/resolve_block_status_test.go b/domain/consensus/processes/consensusstatemanager/resolve_block_status_test.go
index 97d7ab8b9..280b25e9a 100644
--- a/domain/consensus/processes/consensusstatemanager/resolve_block_status_test.go
+++ b/domain/consensus/processes/consensusstatemanager/resolve_block_status_test.go
@@ -2,11 +2,12 @@ package consensusstatemanager_test
 
 import (
 	"errors"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
+	"github.com/kaspanet/kaspad/domain/consensus/utils/utxo"
 	"testing"
 
 	"github.com/kaspanet/kaspad/domain/consensus/model"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/constants"
-	"github.com/kaspanet/kaspad/domain/consensus/utils/subnetworks"
 
 	"github.com/kaspanet/kaspad/domain/consensus/ruleerrors"
 
@@ -157,14 +158,15 @@ func TestDoubleSpends(t *testing.T) {
 	})
 }
 
-// TestTransactionAcceptance checks that blue blocks transactions are favoured above
-// red blocks transactions, and that the block reward is paid only for blue blocks.
+// TestTransactionAcceptance checks that block transactions are accepted correctly when the merge set is sorted topologically.
+// DAG diagram:
+// genesis <- blockA <- blockB <- blockC   <- ..(chain of k-blocks).. lastBlockInChain <- blockD <- blockE <- blockF
+//                                ^								           ^									|
+//								  | redBlock <------------------------ blueChildOfRedBlock <--------------------
 func TestTransactionAcceptance(t *testing.T) {
 	testutils.ForAllNets(t, true, func(t *testing.T, consensusConfig *consensus.Config) {
 		stagingArea := model.NewStagingArea()
-
 		consensusConfig.BlockCoinbaseMaturity = 0
-
 		factory := consensus.NewFactory()
 		testConsensus, teardown, err := factory.NewTestConsensus(consensusConfig, "TestTransactionAcceptance")
 		if err != nil {
@@ -172,221 +174,199 @@ func TestTransactionAcceptance(t *testing.T) {
 		}
 		defer teardown(false)
 
-		fundingBlock1Hash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{consensusConfig.GenesisHash}, nil, nil)
+		blockHashA, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{consensusConfig.GenesisHash}, nil, nil)
 		if err != nil {
-			t.Fatalf("Error creating fundingBlock1: %+v", err)
+			t.Fatalf("Error creating blockA: %+v", err)
 		}
-
-		fundingBlock2Hash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{fundingBlock1Hash}, nil, nil)
+		blockHashB, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockHashA}, nil, nil)
 		if err != nil {
-			t.Fatalf("Error creating fundingBlock2: %+v", err)
+			t.Fatalf("Error creating blockB: %+v", err)
 		}
-
-		// Generate fundingBlock3 to pay for fundingBlock2
-		fundingBlock3Hash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{fundingBlock2Hash}, nil, nil)
+		blockHashC, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockHashB}, nil, nil)
 		if err != nil {
-			t.Fatalf("Error creating fundingBlock3: %+v", err)
+			t.Fatalf("Error creating blockC: %+v", err)
 		}
-
-		// Add a chain of K blocks above fundingBlock3 so we'll
+		// Add a chain of K blocks above blockC so we'll
 		// be able to mine a red block on top of it.
-		tipHash := fundingBlock3Hash
+		chainTipHash := blockHashC
 		for i := model.KType(0); i < consensusConfig.K; i++ {
 			var err error
-			tipHash, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, nil, nil)
+			chainTipHash, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{chainTipHash}, nil, nil)
 			if err != nil {
-				t.Fatalf("Error creating fundingBlock1: %+v", err)
+				t.Fatalf("Error creating a block: %+v", err)
 			}
 		}
-
-		fundingBlock2, err := testConsensus.GetBlock(fundingBlock2Hash)
+		lastBlockInChain := chainTipHash
+		blockC, err := testConsensus.GetBlock(blockHashC)
 		if err != nil {
-			t.Fatalf("Error getting fundingBlock: %+v", err)
+			t.Fatalf("Error getting blockC: %+v", err)
 		}
-
-		fundingTransaction1 := fundingBlock2.Transactions[transactionhelper.CoinbaseTransactionIndex]
-
-		fundingBlock3, err := testConsensus.GetBlock(fundingBlock3Hash)
+		fees := uint64(1)
+		transactionFromBlockC := blockC.Transactions[transactionhelper.CoinbaseTransactionIndex]
+		// transactionFromRedBlock is spending TransactionFromBlockC.
+		transactionFromRedBlock, err := testutils.CreateTransaction(transactionFromBlockC, fees)
 		if err != nil {
-			t.Fatalf("Error getting fundingBlock: %+v", err)
+			t.Fatalf("Error creating a transactionFromRedBlock: %+v", err)
 		}
-
-		fundingTransaction2 := fundingBlock3.Transactions[transactionhelper.CoinbaseTransactionIndex]
-
-		spendingTransaction1, err := testutils.CreateTransaction(fundingTransaction1, 1)
+		transactionFromRedBlockInput0UTXOEntry, err := testConsensus.ConsensusStateStore().
+			UTXOByOutpoint(testConsensus.DatabaseContext(), stagingArea, &transactionFromRedBlock.Inputs[0].PreviousOutpoint)
 		if err != nil {
-			t.Fatalf("Error creating spendingTransaction1: %+v", err)
+			t.Fatalf("Error getting UTXOEntry for transactionFromRedBlockInput: %s", err)
 		}
-		spendingTransaction1UTXOEntry, err := testConsensus.ConsensusStateStore().
-			UTXOByOutpoint(testConsensus.DatabaseContext(), stagingArea, &spendingTransaction1.Inputs[0].PreviousOutpoint)
-		if err != nil {
-			t.Fatalf("Error getting UTXOEntry for spendingTransaction1: %s", err)
-		}
-
-		spendingTransaction2, err := testutils.CreateTransaction(fundingTransaction2, 1)
-		if err != nil {
-			t.Fatalf("Error creating spendingTransaction1: %+v", err)
-		}
-		spendingTransaction2UTXOEntry, err := testConsensus.ConsensusStateStore().
-			UTXOByOutpoint(testConsensus.DatabaseContext(), stagingArea, &spendingTransaction2.Inputs[0].PreviousOutpoint)
-		if err != nil {
-			t.Fatalf("Error getting UTXOEntry for spendingTransaction2: %s", err)
-		}
-
-		redHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{fundingBlock3Hash}, nil,
-			[]*externalapi.DomainTransaction{spendingTransaction1, spendingTransaction2})
+		redHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockHashC}, nil,
+			[]*externalapi.DomainTransaction{transactionFromRedBlock})
 		if err != nil {
 			t.Fatalf("Error creating redBlock: %+v", err)
 		}
 
-		blueScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{1}, Version: 0}
-		blueHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, &externalapi.DomainCoinbaseData{
-			ScriptPublicKey: blueScriptPublicKey,
-			ExtraData:       nil,
-		},
-			[]*externalapi.DomainTransaction{spendingTransaction1})
+		transactionFromBlueChildOfRedBlock, err := testutils.CreateTransaction(transactionFromRedBlock, fees)
 		if err != nil {
-			t.Fatalf("Error creating blue: %+v", err)
+			t.Fatalf("Error creating transactionFromBlueChildOfRedBlock: %+v", err)
 		}
-
-		// Mining two blocks so tipHash will definitely be the selected tip.
-		tipHash, _, err = testConsensus.AddBlock([]*externalapi.DomainHash{tipHash}, nil, nil)
+		transactionFromBlueChildOfRedBlockInput0UTXOEntry, err := testConsensus.ConsensusStateStore().
+			UTXOByOutpoint(testConsensus.DatabaseContext(), stagingArea, &transactionFromBlueChildOfRedBlock.Inputs[0].PreviousOutpoint)
 		if err != nil {
-			t.Fatalf("Error creating tip: %+v", err)
+			t.Fatalf("Error getting UTXOEntry for transactionFromBlueChildOfRedBlockInput: %s", err)
 		}
-
-		finalTipSelectedParentScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{3}, Version: 0}
-		finalTipSelectedParentHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{tipHash},
+		blueChildOfRedBlockScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{3}, Version: 0}
+		// The blueChildOfRedBlock contains a transaction that spent an output from the red block.
+		hashBlueChildOfRedBlock, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{lastBlockInChain, redHash},
 			&externalapi.DomainCoinbaseData{
-				ScriptPublicKey: finalTipSelectedParentScriptPublicKey,
+				ScriptPublicKey: blueChildOfRedBlockScriptPublicKey,
+				ExtraData:       nil,
+			}, []*externalapi.DomainTransaction{transactionFromBlueChildOfRedBlock})
+		if err != nil {
+			t.Fatalf("Error creating blueChildOfRedBlock: %+v", err)
+		}
+
+		// K blocks minded between blockC and blockD.
+		blockHashD, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{lastBlockInChain}, nil, nil)
+		if err != nil {
+			t.Fatalf("Error creating blockD : %+v", err)
+		}
+		blockEScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{4}, Version: 0}
+		blockHashE, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockHashD},
+			&externalapi.DomainCoinbaseData{
+				ScriptPublicKey: blockEScriptPublicKey,
 				ExtraData:       nil,
 			}, nil)
 		if err != nil {
-			t.Fatalf("Error creating tip: %+v", err)
+			t.Fatalf("Error creating blockE: %+v", err)
 		}
-
-		finalTipScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{4}, Version: 0}
-		finalTipHash, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{finalTipSelectedParentHash, redHash, blueHash},
+		blockFScriptPublicKey := &externalapi.ScriptPublicKey{Script: []byte{5}, Version: 0}
+		blockHashF, _, err := testConsensus.AddBlock([]*externalapi.DomainHash{blockHashE, hashBlueChildOfRedBlock},
 			&externalapi.DomainCoinbaseData{
-				ScriptPublicKey: finalTipScriptPublicKey,
+				ScriptPublicKey: blockFScriptPublicKey,
 				ExtraData:       nil,
-			},
-			nil)
+			}, nil)
 		if err != nil {
-			t.Fatalf("Error creating finalTip: %+v", err)
+			t.Fatalf("Error creating blockF: %+v", err)
 		}
 
-		acceptanceData, err := testConsensus.AcceptanceDataStore().Get(testConsensus.DatabaseContext(), stagingArea, finalTipHash)
+		acceptanceData, err := testConsensus.AcceptanceDataStore().Get(testConsensus.DatabaseContext(), stagingArea, blockHashF)
 		if err != nil {
 			t.Fatalf("Error getting acceptance data: %+v", err)
 		}
-
-		finalTipSelectedParent, err := testConsensus.GetBlock(finalTipSelectedParentHash)
+		blueChildOfRedBlock, err := testConsensus.GetBlock(hashBlueChildOfRedBlock)
 		if err != nil {
-			t.Fatalf("Error getting finalTipSelectedParent: %+v", err)
+			t.Fatalf("Error getting blueChildOfRedBlock: %+v", err)
 		}
-
-		blue, err := testConsensus.GetBlock(blueHash)
+		blockE, err := testConsensus.GetBlock(blockHashE)
 		if err != nil {
-			t.Fatalf("Error getting blue: %+v", err)
+			t.Fatalf("Error getting blockE: %+v", err)
 		}
-
-		red, err := testConsensus.GetBlock(redHash)
+		redBlock, err := testConsensus.GetBlock(redHash)
 		if err != nil {
-			t.Fatalf("Error getting red: %+v", err)
+			t.Fatalf("Error getting redBlock: %+v", err)
 		}
-
-		// We expect spendingTransaction1 to be accepted by the blue block and not by the red one, because
-		// blue blocks in the merge set should always be ordered before red blocks in the merge set.
-		// We also expect spendingTransaction2 to be accepted by the red because nothing conflicts it.
+		blockF, err := testConsensus.GetBlock(blockHashF)
+		if err != nil {
+			t.Fatalf("Error getting blockF: %+v", err)
+		}
+		updatedDAAScoreVirtualBlock := 25
+		//We expect the second transaction in the "blue block" (blueChildOfRedBlock) to be accepted because the merge set is ordered topologically
+		//and the red block is ordered topologically before the "blue block" so the input is known in the UTXOSet.
 		expectedAcceptanceData := externalapi.AcceptanceData{
 			{
-				BlockHash: finalTipSelectedParentHash,
+				BlockHash: blockHashE,
 				TransactionAcceptanceData: []*externalapi.TransactionAcceptanceData{
 					{
-						Transaction:                 finalTipSelectedParent.Transactions[0],
+						Transaction:                 blockE.Transactions[0],
 						Fee:                         0,
 						IsAccepted:                  true,
 						TransactionInputUTXOEntries: []externalapi.UTXOEntry{},
 					},
 				},
 			},
-			{
-				BlockHash: blueHash,
-				TransactionAcceptanceData: []*externalapi.TransactionAcceptanceData{
-					{
-						Transaction:                 blue.Transactions[0],
-						Fee:                         0,
-						IsAccepted:                  false,
-						TransactionInputUTXOEntries: []externalapi.UTXOEntry{},
-					},
-					{
-						Transaction:                 spendingTransaction1,
-						Fee:                         1,
-						IsAccepted:                  true,
-						TransactionInputUTXOEntries: []externalapi.UTXOEntry{spendingTransaction1UTXOEntry},
-					},
-				},
-			},
 			{
 				BlockHash: redHash,
 				TransactionAcceptanceData: []*externalapi.TransactionAcceptanceData{
-					{
-						Transaction:                 red.Transactions[0],
+					{ //Coinbase transaction outputs are added to the UTXO-set only if they are in the selected parent chain,
+						// and this block isn't.
+						Transaction:                 redBlock.Transactions[0],
 						Fee:                         0,
 						IsAccepted:                  false,
 						TransactionInputUTXOEntries: []externalapi.UTXOEntry{},
 					},
 					{
-						Transaction:                 spendingTransaction1,
-						Fee:                         0,
-						IsAccepted:                  false,
-						TransactionInputUTXOEntries: []externalapi.UTXOEntry{},
-					},
-					{
-						Transaction:                 spendingTransaction2,
-						Fee:                         1,
+						Transaction:                 redBlock.Transactions[1],
+						Fee:                         fees,
 						IsAccepted:                  true,
-						TransactionInputUTXOEntries: []externalapi.UTXOEntry{spendingTransaction2UTXOEntry},
+						TransactionInputUTXOEntries: []externalapi.UTXOEntry{transactionFromRedBlockInput0UTXOEntry},
+					},
+				},
+			},
+			{
+				BlockHash: hashBlueChildOfRedBlock,
+				TransactionAcceptanceData: []*externalapi.TransactionAcceptanceData{
+					{ //Coinbase transaction outputs are added to the UTXO-set only if they are in the selected parent chain,
+						// and this block isn't.
+						Transaction:                 blueChildOfRedBlock.Transactions[0],
+						Fee:                         0,
+						IsAccepted:                  false,
+						TransactionInputUTXOEntries: []externalapi.UTXOEntry{},
+					},
+					{ // The DAAScore was calculated by the virtual block pov. The DAAScore has changed since more blocks were added to the DAG.
+						// So we will change the DAAScore in the UTXOEntryInput to the updated virtual DAAScore.
+						Transaction: blueChildOfRedBlock.Transactions[1],
+						Fee:         fees,
+						IsAccepted:  true,
+						TransactionInputUTXOEntries: []externalapi.UTXOEntry{
+							utxo.NewUTXOEntry(transactionFromBlueChildOfRedBlockInput0UTXOEntry.Amount(),
+								transactionFromBlueChildOfRedBlockInput0UTXOEntry.ScriptPublicKey(),
+								transactionFromBlueChildOfRedBlockInput0UTXOEntry.IsCoinbase(), uint64(updatedDAAScoreVirtualBlock))},
 					},
 				},
 			},
 		}
-
 		if !acceptanceData.Equal(expectedAcceptanceData) {
 			t.Fatalf("The acceptance data is not the expected acceptance data")
 		}
-
-		finalTip, err := testConsensus.GetBlock(finalTipHash)
-		if err != nil {
-			t.Fatalf("Error getting finalTip: %+v", err)
-		}
-
-		// We expect the coinbase transaction to pay reward for the selected parent, the
-		// blue block, and bestow the red block reward to the merging block.
+		// We expect the coinbase transaction to pay reward for the selected parent(block E), the
+		// blueChildOfRedBlock, and bestow the red block reward to the merging block.
 		expectedCoinbase := &externalapi.DomainTransaction{
 			Version: constants.MaxTransactionVersion,
 			Inputs:  nil,
 			Outputs: []*externalapi.DomainTransactionOutput{
 				{
 					Value:           50 * constants.SompiPerKaspa,
-					ScriptPublicKey: finalTipSelectedParentScriptPublicKey,
+					ScriptPublicKey: blockEScriptPublicKey,
 				},
 				{
-					Value:           50*constants.SompiPerKaspa + 1, // testutils.CreateTransaction pays a fee of 1 sompi
-					ScriptPublicKey: blueScriptPublicKey,
+					Value:           50*constants.SompiPerKaspa + fees, // testutils.CreateTransaction pays fees
+					ScriptPublicKey: blueChildOfRedBlockScriptPublicKey,
 				},
 				{
-					Value:           50*constants.SompiPerKaspa + 1,
-					ScriptPublicKey: finalTipScriptPublicKey,
+					Value:           50*constants.SompiPerKaspa + fees, // testutils.CreateTransaction pays fees
+					ScriptPublicKey: blockFScriptPublicKey,
 				},
 			},
 			LockTime:     0,
 			SubnetworkID: subnetworks.SubnetworkIDCoinbase,
 			Gas:          0,
-			Payload:      finalTip.Transactions[0].Payload,
+			Payload:      blockF.Transactions[0].Payload,
 		}
-		if !finalTip.Transactions[transactionhelper.CoinbaseTransactionIndex].Equal(expectedCoinbase) {
+		if !blockF.Transactions[transactionhelper.CoinbaseTransactionIndex].Equal(expectedCoinbase) {
 			t.Fatalf("Unexpected coinbase transaction")
 		}
 	})
diff --git a/domain/consensus/processes/difficultymanager/difficultymanager.go b/domain/consensus/processes/difficultymanager/difficultymanager.go
index 793368ccc..7dcf6ff36 100644
--- a/domain/consensus/processes/difficultymanager/difficultymanager.go
+++ b/domain/consensus/processes/difficultymanager/difficultymanager.go
@@ -167,9 +167,13 @@ func (dm *difficultyManager) calculateDaaScoreAndAddedBlocks(stagingArea *model.
 	if err != nil {
 		return 0, nil, err
 	}
+	mergeSetLength := len(ghostdagData.MergeSetBlues()) + len(ghostdagData.MergeSetReds())
+	mergeSet := make(map[externalapi.DomainHash]struct{}, mergeSetLength)
+	for _, hash := range ghostdagData.MergeSetBlues() {
+		mergeSet[*hash] = struct{}{}
+	}
 
-	mergeSet := make(map[externalapi.DomainHash]struct{}, len(ghostdagData.MergeSet()))
-	for _, hash := range ghostdagData.MergeSet() {
+	for _, hash := range ghostdagData.MergeSetReds() {
 		mergeSet[*hash] = struct{}{}
 	}
 
diff --git a/domain/consensus/processes/difficultymanager/hashrate.go b/domain/consensus/processes/difficultymanager/hashrate.go
index 1bd04e10e..b217b8c0f 100644
--- a/domain/consensus/processes/difficultymanager/hashrate.go
+++ b/domain/consensus/processes/difficultymanager/hashrate.go
@@ -1,26 +1,31 @@
 package difficultymanager
 
 import (
+	"math/big"
+
 	"github.com/kaspanet/kaspad/domain/consensus/model"
+	"github.com/kaspanet/kaspad/domain/consensus/model/externalapi"
 	"github.com/kaspanet/kaspad/infrastructure/logger"
 	"github.com/pkg/errors"
-	"math/big"
 )
 
-func (dm *difficultyManager) EstimateNetworkHashesPerSecond(windowSize int) (uint64, error) {
+func (dm *difficultyManager) EstimateNetworkHashesPerSecond(startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
 	onEnd := logger.LogAndMeasureExecutionTime(log, "EstimateNetworkHashesPerSecond")
 	defer onEnd()
 
 	stagingArea := model.NewStagingArea()
-	return dm.estimateNetworkHashesPerSecond(stagingArea, windowSize)
+	return dm.estimateNetworkHashesPerSecond(stagingArea, startHash, windowSize)
 }
 
-func (dm *difficultyManager) estimateNetworkHashesPerSecond(stagingArea *model.StagingArea, windowSize int) (uint64, error) {
-	if windowSize < 2 {
-		return 0, errors.Errorf("windowSize must be equal to or greater than 2")
+func (dm *difficultyManager) estimateNetworkHashesPerSecond(stagingArea *model.StagingArea,
+	startHash *externalapi.DomainHash, windowSize int) (uint64, error) {
+
+	const minWindowSize = 1000
+	if windowSize < minWindowSize {
+		return 0, errors.Errorf("windowSize must be equal to or greater than %d", minWindowSize)
 	}
 
-	blockWindow, windowHashes, err := dm.blockWindow(stagingArea, model.VirtualBlockHash, windowSize)
+	blockWindow, windowHashes, err := dm.blockWindow(stagingArea, startHash, windowSize)
 	if err != nil {
 		return 0, err
 	}
@@ -57,8 +62,13 @@ func (dm *difficultyManager) estimateNetworkHashesPerSecond(stagingArea *model.S
 		}
 	}
 
+	windowsDiff := (maxWindowTimestamp - minWindowTimestamp) / 1000 // Divided by 1000 to convert milliseconds to seconds
+	if windowsDiff == 0 {
+		return 0, nil
+	}
+
 	nominator := new(big.Int).Sub(maxWindowBlueWork, minWindowBlueWork)
-	denominator := big.NewInt((maxWindowTimestamp - minWindowTimestamp) / 1000) // Divided by 1000 to convert milliseconds to seconds
+	denominator := big.NewInt(windowsDiff)
 	networkHashesPerSecondBigInt := new(big.Int).Div(nominator, denominator)
 	return networkHashesPerSecondBigInt.Uint64(), nil
 }
diff --git a/domain/consensus/processes/ghostdag2/ghostdagimpl.go b/domain/consensus/processes/ghostdag2/ghostdagimpl.go
index c48276e04..22003878a 100644
--- a/domain/consensus/processes/ghostdag2/ghostdagimpl.go
+++ b/domain/consensus/processes/ghostdag2/ghostdagimpl.go
@@ -409,3 +409,7 @@ func (gh *ghostdagHelper) ChooseSelectedParent(stagingArea *model.StagingArea, b
 func (gh *ghostdagHelper) Less(blockHashA *externalapi.DomainHash, ghostdagDataA *model.BlockGHOSTDAGData, blockHashB *externalapi.DomainHash, ghostdagDataB *model.BlockGHOSTDAGData) bool {
 	panic("implement me")
 }
+
+func (gh *ghostdagHelper) GetSortedMergeSet(*model.StagingArea, *externalapi.DomainHash) ([]*externalapi.DomainHash, error) {
+	panic("implement me")
+}
diff --git a/domain/consensus/processes/ghostdagmanager/mergeset.go b/domain/consensus/processes/ghostdagmanager/mergeset.go
index 8b2fd49c1..f6851947f 100644
--- a/domain/consensus/processes/ghostdagmanager/mergeset.go
+++ b/domain/consensus/processes/ghostdagmanager/mergeset.go
@@ -82,3 +82,47 @@ func (gm *ghostdagManager) sortMergeSet(stagingArea *model.StagingArea, mergeSet
 	})
 	return err
 }
+
+// GetSortedMergeSet return the merge set sorted in a toplogical order.
+func (gm *ghostdagManager) GetSortedMergeSet(stagingArea *model.StagingArea,
+	current *externalapi.DomainHash) ([]*externalapi.DomainHash, error) {
+
+	currentGhostdagData, err := gm.ghostdagDataStore.Get(gm.databaseContext, stagingArea, current)
+	if err != nil {
+		return nil, err
+	}
+
+	blueMergeSet := currentGhostdagData.MergeSetBlues()
+	redMergeSet := currentGhostdagData.MergeSetReds()
+	sortedMergeSet := make([]*externalapi.DomainHash, 0, len(blueMergeSet)+len(redMergeSet))
+	// If the current block is the genesis block:
+	if len(blueMergeSet) == 0 {
+		return sortedMergeSet, nil
+	}
+	selectedParent, blueMergeSet := blueMergeSet[0], blueMergeSet[1:]
+	sortedMergeSet = append(sortedMergeSet, selectedParent)
+	i, j := 0, 0
+	for i < len(blueMergeSet) && j < len(redMergeSet) {
+		currentBlue := blueMergeSet[i]
+		currentBlueGhostdagData, err := gm.ghostdagDataStore.Get(gm.databaseContext, stagingArea, currentBlue)
+		if err != nil {
+			return nil, err
+		}
+		currentRed := redMergeSet[j]
+		currentRedGhostdagData, err := gm.ghostdagDataStore.Get(gm.databaseContext, stagingArea, currentRed)
+		if err != nil {
+			return nil, err
+		}
+		if gm.Less(currentBlue, currentBlueGhostdagData, currentRed, currentRedGhostdagData) {
+			sortedMergeSet = append(sortedMergeSet, currentBlue)
+			i++
+		} else {
+			sortedMergeSet = append(sortedMergeSet, currentRed)
+			j++
+		}
+	}
+	sortedMergeSet = append(sortedMergeSet, blueMergeSet[i:]...)
+	sortedMergeSet = append(sortedMergeSet, redMergeSet[j:]...)
+
+	return sortedMergeSet, nil
+}
diff --git a/domain/consensus/processes/syncmanager/antipast.go b/domain/consensus/processes/syncmanager/antipast.go
index 6909118f6..46b270cfa 100644
--- a/domain/consensus/processes/syncmanager/antipast.go
+++ b/domain/consensus/processes/syncmanager/antipast.go
@@ -71,7 +71,7 @@ func (sm *syncManager) antiPastHashesBetween(stagingArea *model.StagingArea, low
 		// Since the rest of the merge set is in the anticone of selectedParent, it's position in the list does not
 		// matter, even though it's blue score is the highest, we can arbitrarily decide it comes first.
 		// Therefore we first append the selectedParent, then the rest of blocks in ghostdag order.
-		sortedMergeSet, err := sm.getSortedMergeSet(stagingArea, current)
+		sortedMergeSet, err := sm.ghostdagManager.GetSortedMergeSet(stagingArea, current)
 		if err != nil {
 			return nil, nil, err
 		}
@@ -97,49 +97,9 @@ func (sm *syncManager) antiPastHashesBetween(stagingArea *model.StagingArea, low
 	return blockHashes, highHash, nil
 }
 
-func (sm *syncManager) getSortedMergeSet(stagingArea *model.StagingArea, current *externalapi.DomainHash) (
-	[]*externalapi.DomainHash, error) {
-
-	currentGhostdagData, err := sm.ghostdagDataStore.Get(sm.databaseContext, stagingArea, current)
-	if err != nil {
-		return nil, err
-	}
-
-	blueMergeSet := currentGhostdagData.MergeSetBlues()
-	redMergeSet := currentGhostdagData.MergeSetReds()
-	sortedMergeSet := make([]*externalapi.DomainHash, 0, len(blueMergeSet)+len(redMergeSet))
-	selectedParent, blueMergeSet := blueMergeSet[0], blueMergeSet[1:]
-	sortedMergeSet = append(sortedMergeSet, selectedParent)
-	i, j := 0, 0
-	for i < len(blueMergeSet) && j < len(redMergeSet) {
-		currentBlue := blueMergeSet[i]
-		currentBlueGhostdagData, err := sm.ghostdagDataStore.Get(sm.databaseContext, stagingArea, currentBlue)
-		if err != nil {
-			return nil, err
-		}
-		currentRed := redMergeSet[j]
-		currentRedGhostdagData, err := sm.ghostdagDataStore.Get(sm.databaseContext, stagingArea, currentRed)
-		if err != nil {
-			return nil, err
-		}
-		if sm.ghostdagManager.Less(currentBlue, currentBlueGhostdagData, currentRed, currentRedGhostdagData) {
-			sortedMergeSet = append(sortedMergeSet, currentBlue)
-			i++
-		} else {
-			sortedMergeSet = append(sortedMergeSet, currentRed)
-			j++
-		}
-	}
-	sortedMergeSet = append(sortedMergeSet, blueMergeSet[i:]...)
-	sortedMergeSet = append(sortedMergeSet, redMergeSet[j:]...)
-
-	return sortedMergeSet, nil
-}
-
-func (sm *syncManager) findHighHashAccordingToMaxBlueScoreDifference(stagingArea *model.StagingArea,
-	lowHash *externalapi.DomainHash, highHash *externalapi.DomainHash, maxBlueScoreDifference uint64,
-	highBlockGHOSTDAGData *model.BlockGHOSTDAGData, lowBlockGHOSTDAGData *model.BlockGHOSTDAGData) (
-	*externalapi.DomainHash, error) {
+func (sm *syncManager) findHighHashAccordingToMaxBlueScoreDifference(stagingArea *model.StagingArea, lowHash *externalapi.DomainHash,
+	highHash *externalapi.DomainHash, maxBlueScoreDifference uint64, highBlockGHOSTDAGData *model.BlockGHOSTDAGData,
+	lowBlockGHOSTDAGData *model.BlockGHOSTDAGData) (*externalapi.DomainHash, error) {
 
 	if highBlockGHOSTDAGData.BlueScore()-lowBlockGHOSTDAGData.BlueScore() <= maxBlueScoreDifference {
 		return highHash, nil
diff --git a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.pb.go b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.pb.go
index c3f210765..742929ad2 100644
--- a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.pb.go
+++ b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.pb.go
@@ -17,11 +17,12 @@
 package protowire
 
 import (
+	reflect "reflect"
+	sync "sync"
+
 	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
 )
 
 const (
@@ -5008,6 +5009,7 @@ type EstimateNetworkHashesPerSecondRequestMessage struct {
 	unknownFields protoimpl.UnknownFields
 
 	WindowSize uint32 `protobuf:"varint,1,opt,name=windowSize,proto3" json:"windowSize,omitempty"`
+	StartHash  string `protobuf:"bytes,2,opt,name=blockHash,proto3" json:"blockHash,omitempty"`
 }
 
 func (x *EstimateNetworkHashesPerSecondRequestMessage) Reset() {
@@ -5049,6 +5051,13 @@ func (x *EstimateNetworkHashesPerSecondRequestMessage) GetWindowSize() uint32 {
 	return 0
 }
 
+func (x *EstimateNetworkHashesPerSecondRequestMessage) GetBlockHash() string {
+	if x != nil {
+		return x.StartHash
+	}
+	return ""
+}
+
 type EstimateNetworkHashesPerSecondResponseMessage struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -5727,25 +5736,26 @@ var file_rpc_proto_rawDesc = []byte{
 	0x01, 0x28, 0x04, 0x52, 0x0b, 0x6d, 0x65, 0x6d, 0x70, 0x6f, 0x6f, 0x6c, 0x53, 0x69, 0x7a, 0x65,
 	0x12, 0x2a, 0x0a, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x18, 0xe8, 0x07, 0x20, 0x01, 0x28, 0x0b,
 	0x32, 0x13, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x77, 0x69, 0x72, 0x65, 0x2e, 0x52, 0x50, 0x43,
-	0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x22, 0x4e, 0x0a, 0x2c,
+	0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x22, 0x6c, 0x0a, 0x2c,
 	0x45, 0x73, 0x74, 0x69, 0x6d, 0x61, 0x74, 0x65, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x48,
 	0x61, 0x73, 0x68, 0x65, 0x73, 0x50, 0x65, 0x72, 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x52, 0x65,
 	0x71, 0x75, 0x65, 0x73, 0x74, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x1e, 0x0a, 0x0a,
 	0x77, 0x69, 0x6e, 0x64, 0x6f, 0x77, 0x53, 0x69, 0x7a, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0d,
-	0x52, 0x0a, 0x77, 0x69, 0x6e, 0x64, 0x6f, 0x77, 0x53, 0x69, 0x7a, 0x65, 0x22, 0x93, 0x01, 0x0a,
-	0x2d, 0x45, 0x73, 0x74, 0x69, 0x6d, 0x61, 0x74, 0x65, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b,
-	0x48, 0x61, 0x73, 0x68, 0x65, 0x73, 0x50, 0x65, 0x72, 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x52,
-	0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x36,
-	0x0a, 0x16, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x65, 0x73, 0x50,
-	0x65, 0x72, 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x16,
+	0x52, 0x0a, 0x77, 0x69, 0x6e, 0x64, 0x6f, 0x77, 0x53, 0x69, 0x7a, 0x65, 0x12, 0x1c, 0x0a, 0x09,
+	0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x09, 0x62, 0x6c, 0x6f, 0x63, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x22, 0x93, 0x01, 0x0a, 0x2d, 0x45,
+	0x73, 0x74, 0x69, 0x6d, 0x61, 0x74, 0x65, 0x4e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x48, 0x61,
+	0x73, 0x68, 0x65, 0x73, 0x50, 0x65, 0x72, 0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x52, 0x65, 0x73,
+	0x70, 0x6f, 0x6e, 0x73, 0x65, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x12, 0x36, 0x0a, 0x16,
 	0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x65, 0x73, 0x50, 0x65, 0x72,
-	0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x12, 0x2a, 0x0a, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x18,
-	0xe8, 0x07, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x13, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x77, 0x69,
-	0x72, 0x65, 0x2e, 0x52, 0x50, 0x43, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x05, 0x65, 0x72, 0x72,
-	0x6f, 0x72, 0x42, 0x26, 0x5a, 0x24, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
-	0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x6e, 0x65, 0x74, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x64,
-	0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x77, 0x69, 0x72, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74,
-	0x6f, 0x33,
+	0x53, 0x65, 0x63, 0x6f, 0x6e, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x16, 0x6e, 0x65,
+	0x74, 0x77, 0x6f, 0x72, 0x6b, 0x48, 0x61, 0x73, 0x68, 0x65, 0x73, 0x50, 0x65, 0x72, 0x53, 0x65,
+	0x63, 0x6f, 0x6e, 0x64, 0x12, 0x2a, 0x0a, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72, 0x18, 0xe8, 0x07,
+	0x20, 0x01, 0x28, 0x0b, 0x32, 0x13, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x77, 0x69, 0x72, 0x65,
+	0x2e, 0x52, 0x50, 0x43, 0x45, 0x72, 0x72, 0x6f, 0x72, 0x52, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72,
+	0x42, 0x26, 0x5a, 0x24, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6b,
+	0x61, 0x73, 0x70, 0x61, 0x6e, 0x65, 0x74, 0x2f, 0x6b, 0x61, 0x73, 0x70, 0x61, 0x64, 0x2f, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x77, 0x69, 0x72, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.proto b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.proto
index dc0efd00c..d38682449 100644
--- a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.proto
+++ b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc.proto
@@ -592,6 +592,7 @@ message GetInfoResponseMessage{
 
 message EstimateNetworkHashesPerSecondRequestMessage{
   uint32 windowSize = 1;
+  string blockHash = 2;
 }
 
 message EstimateNetworkHashesPerSecondResponseMessage{
diff --git a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc_estimate_network_hashes_per_second.go b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc_estimate_network_hashes_per_second.go
index 8b3a22b46..cee088402 100644
--- a/infrastructure/network/netadapter/server/grpcserver/protowire/rpc_estimate_network_hashes_per_second.go
+++ b/infrastructure/network/netadapter/server/grpcserver/protowire/rpc_estimate_network_hashes_per_second.go
@@ -15,6 +15,7 @@ func (x *KaspadMessage_EstimateNetworkHashesPerSecondRequest) toAppMessage() (ap
 func (x *KaspadMessage_EstimateNetworkHashesPerSecondRequest) fromAppMessage(message *appmessage.EstimateNetworkHashesPerSecondRequestMessage) error {
 	x.EstimateNetworkHashesPerSecondRequest = &EstimateNetworkHashesPerSecondRequestMessage{
 		WindowSize: message.WindowSize,
+		StartHash:  message.StartHash,
 	}
 	return nil
 }
@@ -25,6 +26,7 @@ func (x *EstimateNetworkHashesPerSecondRequestMessage) toAppMessage() (appmessag
 	}
 	return &appmessage.EstimateNetworkHashesPerSecondRequestMessage{
 		WindowSize: x.WindowSize,
+		StartHash:  x.StartHash,
 	}, nil
 }
 
diff --git a/infrastructure/network/rpcclient/rpc_estimate_network_hashes_per_second.go b/infrastructure/network/rpcclient/rpc_estimate_network_hashes_per_second.go
index 1776aba31..39c00f3f5 100644
--- a/infrastructure/network/rpcclient/rpc_estimate_network_hashes_per_second.go
+++ b/infrastructure/network/rpcclient/rpc_estimate_network_hashes_per_second.go
@@ -3,8 +3,8 @@ package rpcclient
 import "github.com/kaspanet/kaspad/app/appmessage"
 
 // EstimateNetworkHashesPerSecond sends an RPC request respective to the function's name and returns the RPC server's response
-func (c *RPCClient) EstimateNetworkHashesPerSecond(windowSize uint32) (*appmessage.EstimateNetworkHashesPerSecondResponseMessage, error) {
-	err := c.rpcRouter.outgoingRoute().Enqueue(appmessage.NewEstimateNetworkHashesPerSecondRequestMessage(windowSize))
+func (c *RPCClient) EstimateNetworkHashesPerSecond(startHash string, windowSize uint32) (*appmessage.EstimateNetworkHashesPerSecondResponseMessage, error) {
+	err := c.rpcRouter.outgoingRoute().Enqueue(appmessage.NewEstimateNetworkHashesPerSecondRequestMessage(startHash, windowSize))
 	if err != nil {
 		return nil, err
 	}
diff --git a/stability-tests/run/run-fast.sh b/stability-tests/run/run-fast.sh
index 93c442958..d50cb4c2f 100755
--- a/stability-tests/run/run-fast.sh
+++ b/stability-tests/run/run-fast.sh
@@ -38,6 +38,10 @@ echo "Running reorg"
 cd "${PROJECT_ROOT}/reorg/run" && ./run.sh || failedTests+=("reorg")
 echo "Done running reorg"
 
+echo "Running many-tips"
+cd "${PROJECT_ROOT}/many-tips/run" && ./run.sh || failedTests+=("many-tips")
+echo "Done running many-tips"
+
 echo "Running netsync - fast"
 cd "${PROJECT_ROOT}/netsync/run" && ./run-fast.sh || failedTests+=("netsync")
 echo "Done running netsync - fast"
diff --git a/stability-tests/run/run-slow.sh b/stability-tests/run/run-slow.sh
index 509404eb5..94d4cc19d 100755
--- a/stability-tests/run/run-slow.sh
+++ b/stability-tests/run/run-slow.sh
@@ -34,6 +34,10 @@ echo "Running orphans"
 cd "${PROJECT_ROOT}/orphans/run" && ./run.sh || failedTests+=("orphans")
 echo "Done running orphans"
 
+echo "Running many-tips"
+cd "${PROJECT_ROOT}/many-tips/run" && ./run.sh || failedTests+=("many-tips")
+echo "Done running many-tips"
+
 echo "Running reorg"
 cd "${PROJECT_ROOT}/reorg/run" && ./run-full-finality-window-reorg.sh || failedTests+=("reorg")
 echo "Done running reorg"