diff --git a/.gitignore b/.gitignore
index 1795c8d..47f5367 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
-.history
\ No newline at end of file
+.history
+.idea
diff --git a/Peer.go b/Peer.go
index e1d453d..827e4d4 100644
--- a/Peer.go
+++ b/Peer.go
@@ -2,10 +2,11 @@ package p2p
 
 import (
 	"bufio"
+	"encoding/hex"
 	"errors"
 	"fmt"
 	"io"
-	"log"
+	"log/slog"
 	"net"
 	"strconv"
 	"strings"
@@ -16,10 +17,8 @@ import (
 	"github.com/libsv/go-p2p/bsvutil"
 	"github.com/libsv/go-p2p/chaincfg/chainhash"
 	"github.com/libsv/go-p2p/wire"
-	"github.com/ordishs/go-utils/batcher"
-
 	"github.com/ordishs/go-utils"
-	"github.com/ordishs/gocore"
+	"github.com/ordishs/go-utils/batcher"
 )
 
 var (
@@ -27,7 +26,16 @@ var (
 )
 
 const (
-	defaultMaximumMessageSize = 32 * 1024 * 1024
+	defaultMaximumMessageSize     = 32 * 1024 * 1024
+	defaultBatchDelayMilliseconds = 200
+
+	commandKey = "cmd"
+	hashKey    = "hash"
+	errKey     = "err"
+	typeKey    = "type"
+
+	sentMsg     = "Sent"
+	receivedMsg = "Recv"
 )
 
 type Block struct {
@@ -50,7 +58,7 @@ type Peer struct {
 	peerHandler        PeerHandlerI
 	writeChan          chan wire.Message
 	quit               chan struct{}
-	logger             utils.Logger
+	logger             *slog.Logger
 	sentVerAck         atomic.Bool
 	receivedVerAck     atomic.Bool
 	batchDelay         time.Duration
@@ -60,23 +68,38 @@ type Peer struct {
 }
 
 // NewPeer returns a new bitcoin peer for the provided address and configuration.
-func NewPeer(logger utils.Logger, address string, peerHandler PeerHandlerI, network wire.BitcoinNet, options ...PeerOptions) (*Peer, error) {
+func NewPeer(logger *slog.Logger, address string, peerHandler PeerHandlerI, network wire.BitcoinNet, options ...PeerOptions) (*Peer, error) {
 	writeChan := make(chan wire.Message, 10000)
 
+	peerLogger := logger.With(
+		slog.Group("peer",
+			slog.String("network", network.String()),
+			slog.String("address", address),
+		),
+	)
+
 	p := &Peer{
 		network:            network,
 		address:            address,
 		writeChan:          writeChan,
 		peerHandler:        peerHandler,
-		logger:             logger,
+		logger:             peerLogger,
 		dial:               net.Dial,
 		maximumMessageSize: defaultMaximumMessageSize,
+		batchDelay:         defaultBatchDelayMilliseconds * time.Millisecond,
 	}
 
 	for _, option := range options {
 		option(p)
 	}
 
+	p.initialize()
+
+	return p, nil
+}
+
+func (p *Peer) initialize() {
+
 	go p.pingHandler()
 	for i := 0; i < 10; i++ {
 		// start 10 workers that will write to the peer
@@ -88,35 +111,28 @@ func NewPeer(logger utils.Logger, address string, peerHandler PeerHandlerI, netw
 	go func() {
 		err := p.connect()
 		if err != nil {
-			logger.Warnf("Failed to connect to peer %s: %v", address, err)
+			p.logger.Warn("Failed to connect to peer", slog.String(errKey, err.Error()))
 		}
 	}()
 
 	if p.incomingConn != nil {
-		p.logger.Infof("[%s] Incoming connection from peer on %s", p.address, p.network)
+		p.logger.Info("Incoming connection from peer")
 	} else {
 		// reconnect if disconnected, but only on outgoing connections
 		go func() {
 			for range time.NewTicker(10 * time.Second).C {
-				// logger.Debugf("checking connection to peer %s, connected = %t, connecting = %t", address, p.Connected(), p.Connecting())
 				if !p.Connected() && !p.Connecting() {
 					err := p.connect()
 					if err != nil {
-						logger.Warnf("Failed to connect to peer %s: %v", address, err)
+						p.logger.Warn("Failed to connect to peer", slog.String(errKey, err.Error()))
 					}
 				}
 			}
 		}()
 	}
 
-	if p.batchDelay == 0 {
-		batchDelayMillis, _ := gocore.Config().GetInt("peerManager_batchDelay_millis", 200)
-		p.batchDelay = time.Duration(batchDelayMillis) * time.Millisecond
-	}
 	p.invBatcher = batcher.New(500, p.batchDelay, p.sendInvBatch, true)
 	p.dataBatcher = batcher.New(500, p.batchDelay, p.sendDataBatch, true)
-
-	return p, nil
 }
 
 func (p *Peer) disconnect() {
@@ -154,10 +170,10 @@ func (p *Peer) connect() error {
 	if p.incomingConn != nil {
 		p.readConn = p.incomingConn
 	} else {
-		p.logger.Infof("[%s] Connecting to peer on %s", p.address, p.network)
+		p.logger.Info("Connecting")
 		conn, err := p.dial("tcp", p.address)
 		if err != nil {
-			return fmt.Errorf("could not dial node [%s]: %v", p.address, err)
+			return fmt.Errorf("could not dial node: %v", err)
 		}
 
 		// open the read connection, so we can receive messages
@@ -175,7 +191,7 @@ func (p *Peer) connect() error {
 	if err := wire.WriteMessage(p.readConn, msg, wire.ProtocolVersion, p.network); err != nil {
 		return fmt.Errorf("failed to write message: %v", err)
 	}
-	p.logger.Debugf("[%s] Sent %s", p.address, strings.ToUpper(msg.Command()))
+	p.logger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(msg.Command())))
 
 	startWaitTime := time.Now()
 	for {
@@ -192,7 +208,7 @@ func (p *Peer) connect() error {
 	// set the connection which allows us to send messages
 	p.writeConn = p.readConn
 
-	p.logger.Infof("[%s] Connected to peer on %s", p.address, p.network)
+	p.logger.Info("Connection established")
 
 	return nil
 }
@@ -228,7 +244,7 @@ func (p *Peer) readHandler() {
 	readConn := p.readConn
 
 	if readConn == nil {
-		p.logger.Errorf("no connection")
+		p.logger.Error("no connection")
 		return
 	}
 
@@ -237,84 +253,93 @@ func (p *Peer) readHandler() {
 		msg, b, err := wire.ReadMessage(reader, wire.ProtocolVersion, p.network)
 		if err != nil {
 			if errors.Is(err, io.EOF) {
-				p.logger.Errorf(fmt.Sprintf("READ EOF whilst reading from %s [%d bytes], bytes = %s, err = %v", p.address, len(b), string(b), err))
+				p.logger.Error("failed to read message: EOF", slog.Int("bytes", len(b)), slog.String("rawMessage", string(b)), slog.String(errKey, err.Error()))
 				p.disconnect()
 				break
 			}
-			p.logger.Errorf("[%s] Failed to read message: %v", p.address, err)
+
+			p.logger.Error("failed to read message", slog.Int("bytes", len(b)), slog.String("rawMessage", string(b)), slog.String(errKey, err.Error()))
 			continue
 		}
 
+		commandLogger := p.logger.With(slog.String(commandKey, strings.ToUpper(msg.Command())))
+
 		// we could check this based on type (switch msg.(type)) but that would not allow
 		// us to override the default behaviour for a specific message type
 		switch msg.Command() {
 		case wire.CmdVersion:
-			p.logger.Debugf("[%s] Recv %s", p.address, strings.ToUpper(msg.Command()))
+			commandLogger.Debug(receivedMsg)
 			if p.sentVerAck.Load() {
-				p.logger.Warnf("[%s] Received version message after sending verack", p.address)
+				commandLogger.Warn("Received version message after sending verack")
 				continue
 			}
 
 			verackMsg := wire.NewMsgVerAck()
 			if err = wire.WriteMessage(readConn, verackMsg, wire.ProtocolVersion, p.network); err != nil {
-				p.logger.Errorf("[%s] failed to write message: %v", p.address, err)
+				commandLogger.Error("failed to write message", slog.String(errKey, err.Error()))
 			}
-			p.logger.Debugf("[%s] Sent %s", p.address, strings.ToUpper(verackMsg.Command()))
+			commandLogger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(verackMsg.Command())))
 			p.sentVerAck.Store(true)
 
 		case wire.CmdPing:
-			pingMsg := msg.(*wire.MsgPing)
+			pingMsg, ok := msg.(*wire.MsgPing)
+			if !ok {
+				continue
+			}
 			p.writeChan <- wire.NewMsgPong(pingMsg.Nonce)
 
 		case wire.CmdInv:
-			invMsg := msg.(*wire.MsgInv)
-			if p.logger.LogLevel() == int(gocore.DEBUG) {
-				p.logger.Debugf("[%s] Recv INV (%d items)", p.address, len(invMsg.InvList))
-				for _, inv := range invMsg.InvList {
-					p.logger.Debugf("        [%s] %s", p.address, inv.Hash.String())
-				}
+			invMsg, ok := msg.(*wire.MsgInv)
+			if !ok {
+				continue
+			}
+			for _, inv := range invMsg.InvList {
+				commandLogger.Debug(receivedMsg, slog.String(hashKey, inv.Hash.String()), slog.String(typeKey, inv.Type.String()))
 			}
 
-			go func(invList []*wire.InvVect) {
+			go func(invList []*wire.InvVect, routineLogger *slog.Logger) {
 				for _, invVect := range invList {
 					switch invVect.Type {
 					case wire.InvTypeTx:
 						if err = p.peerHandler.HandleTransactionAnnouncement(invVect, p); err != nil {
-							p.logger.Errorf("[%s] Unable to process tx %s: %v", p.address, invVect.Hash.String(), err)
+							commandLogger.Error("Unable to process tx", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()), slog.String(errKey, err.Error()))
 						}
 					case wire.InvTypeBlock:
 						if err = p.peerHandler.HandleBlockAnnouncement(invVect, p); err != nil {
-							p.logger.Errorf("[%s] Unable to process block %s: %v", p.address, invVect.Hash.String(), err)
+							commandLogger.Error("Unable to process block", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()), slog.String(errKey, err.Error()))
 						}
 					}
 				}
-			}(invMsg.InvList)
+			}(invMsg.InvList, commandLogger)
 
 		case wire.CmdGetData:
-			dataMsg := msg.(*wire.MsgGetData)
-			p.logger.Infof("[%s] Recv GETDATA (%d items)", p.address, len(dataMsg.InvList))
-			if p.logger.LogLevel() == int(gocore.DEBUG) {
-				for _, inv := range dataMsg.InvList {
-					p.logger.Debugf("        [%s] %s", p.address, inv.Hash.String())
-				}
+			dataMsg, ok := msg.(*wire.MsgGetData)
+			if !ok {
+				continue
+			}
+			for _, inv := range dataMsg.InvList {
+				commandLogger.Debug(receivedMsg, slog.String(hashKey, inv.Hash.String()), slog.String(typeKey, inv.Type.String()))
 			}
-			p.handleGetDataMsg(dataMsg)
+			p.handleGetDataMsg(dataMsg, commandLogger)
 
 		case wire.CmdTx:
-			txMsg := msg.(*wire.MsgTx)
-			p.logger.Debugf("Recv TX %s (%d bytes)", txMsg.TxHash().String(), txMsg.SerializeSize())
+			txMsg, ok := msg.(*wire.MsgTx)
+			if !ok {
+				continue
+			}
+			commandLogger.Debug(receivedMsg, slog.String(hashKey, txMsg.TxHash().String()), slog.Int("size", txMsg.SerializeSize()))
 			if err = p.peerHandler.HandleTransaction(txMsg, p); err != nil {
-				p.logger.Errorf("Unable to process tx %s: %v", txMsg.TxHash().String(), err)
+				commandLogger.Error("Unable to process tx", slog.String(hashKey, txMsg.TxHash().String()), slog.String(errKey, err.Error()))
 			}
 
 		case wire.CmdBlock:
 			msgBlock, ok := msg.(*wire.MsgBlock)
 			if ok {
-				p.logger.Infof("[%s] Recv %s: %s", p.address, strings.ToUpper(msg.Command()), msgBlock.Header.BlockHash().String())
+				commandLogger.Info(receivedMsg, slog.String(hashKey, msgBlock.Header.BlockHash().String()))
 
 				err = p.peerHandler.HandleBlock(msgBlock, p)
 				if err != nil {
-					p.logger.Errorf("[%s] Unable to process block %s: %v", p.address, msgBlock.Header.BlockHash().String(), err)
+					commandLogger.Error("Unable to process block", slog.String(hashKey, msgBlock.Header.BlockHash().String()), slog.String(errKey, err.Error()))
 				}
 				continue
 			}
@@ -322,68 +347,70 @@ func (p *Peer) readHandler() {
 			// Please note that this is the BlockMessage, not the wire.MsgBlock
 			blockMsg, ok := msg.(*BlockMessage)
 			if !ok {
-				p.logger.Errorf("Unable to cast block message, calling with generic wire.Message")
+				commandLogger.Error("Unable to cast block message, calling with generic wire.Message")
 				err = p.peerHandler.HandleBlock(msg, p)
 				if err != nil {
-					p.logger.Errorf("[%s] Unable to process block message: %v", p.address, err)
+					commandLogger.Error("Unable to process block message", slog.String(errKey, err.Error()))
 				}
 				continue
 			}
 
-			p.logger.Infof("[%s] Recv %s: %s", p.address, strings.ToUpper(msg.Command()), blockMsg.Header.BlockHash().String())
+			commandLogger.Info(receivedMsg, slog.String(hashKey, blockMsg.Header.BlockHash().String()))
 
 			err = p.peerHandler.HandleBlock(blockMsg, p)
 			if err != nil {
-				p.logger.Errorf("[%s] Unable to process block %s: %v", p.address, blockMsg.Header.BlockHash().String(), err)
+				commandLogger.Error("Unable to process block", slog.String(hashKey, blockMsg.Header.BlockHash().String()), slog.String(errKey, err.Error()))
 			}
 
 		case wire.CmdReject:
-			rejMsg := msg.(*wire.MsgReject)
+			rejMsg, ok := msg.(*wire.MsgReject)
+			if !ok {
+				continue
+			}
 			if err = p.peerHandler.HandleTransactionRejection(rejMsg, p); err != nil {
-				p.logger.Errorf("[%s] Unable to process block %s: %v", p.address, rejMsg.Hash.String(), err)
+				commandLogger.Error("Unable to process block", slog.String(hashKey, rejMsg.Hash.String()), slog.String(errKey, err.Error()))
 			}
 
 		case wire.CmdVerAck:
-			p.logger.Debugf("[%s] Recv %s", p.address, strings.ToUpper(msg.Command()))
+			commandLogger.Debug(receivedMsg)
 			p.receivedVerAck.Store(true)
 
 		default:
-			p.logger.Debugf("[%s] Ignored %s", p.address, strings.ToUpper(msg.Command()))
+			commandLogger.Debug("command ignored")
 		}
 	}
-
 }
 
-func (p *Peer) handleGetDataMsg(dataMsg *wire.MsgGetData) {
+func (p *Peer) handleGetDataMsg(dataMsg *wire.MsgGetData, logger *slog.Logger) {
 	for _, invVect := range dataMsg.InvList {
 		switch invVect.Type {
 		case wire.InvTypeTx:
-			p.logger.Debugf("[%s] Request for TX: %s\n", p.address, invVect.Hash.String())
+			logger.Debug("Request for TX", slog.String(hashKey, invVect.Hash.String()))
 
 			txBytes, err := p.peerHandler.HandleTransactionGet(invVect, p)
 			if err != nil {
-				p.logger.Warnf("[%s] Unable to fetch tx %s from store: %v", p.address, invVect.Hash.String(), err)
+				logger.Warn("Unable to fetch tx from store", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()), slog.String(errKey, err.Error()))
 				continue
 			}
 
 			if txBytes == nil {
-				p.logger.Warnf("[%s] Unable to fetch tx %s from store: %v", p.address, invVect.Hash.String(), err)
+				logger.Warn("tx does not exist", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()), slog.String(errKey, err.Error()))
 				continue
 			}
 
 			tx, err := bsvutil.NewTxFromBytes(txBytes)
 			if err != nil {
-				log.Print(err) // Log and handle the error
+				logger.Error("failed to parse tx", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()), slog.String("rawHex", hex.EncodeToString(txBytes)), slog.String(errKey, err.Error()))
 				continue
 			}
 
 			p.writeChan <- tx.MsgTx()
 
 		case wire.InvTypeBlock:
-			p.logger.Infof("[%s] Request for Block: %s\n", p.address, invVect.Hash.String())
+			logger.Info("Request for block", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()))
 
 		default:
-			p.logger.Warnf("[%s] Unknown type: %d\n", p.address, invVect.Type)
+			logger.Warn("Unknown type", slog.String(hashKey, invVect.Hash.String()), slog.String(typeKey, invVect.Type.String()))
 		}
 	}
 }
@@ -401,14 +428,14 @@ func (p *Peer) AnnounceBlock(blockHash *chainhash.Hash) {
 
 	iv := wire.NewInvVect(wire.InvTypeBlock, blockHash)
 	if err := invMsg.AddInvVect(iv); err != nil {
-		p.logger.Infof("ERROR adding invVect to INV message: %v", err)
+		p.logger.Error("failed to add invVect to INV message", slog.String(typeKey, iv.Type.String()), slog.String(hashKey, blockHash.String()), slog.String(errKey, err.Error()))
 		return
 	}
 
 	if err := p.WriteMsg(invMsg); err != nil {
-		p.logger.Infof("[%s] ERROR sending INV for block: %v", p.String(), err)
+		p.logger.Error("failed to send INV message", slog.String(typeKey, iv.Type.String()), slog.String(hashKey, blockHash.String()), slog.String(errKey, err.Error()))
 	} else {
-		p.logger.Infof("[%s] Sent INV for block %v", p.String(), blockHash)
+		p.logger.Info("Sent INV", slog.String(typeKey, iv.Type.String()), slog.String(hashKey, blockHash.String()))
 	}
 }
 
@@ -417,14 +444,14 @@ func (p *Peer) RequestBlock(blockHash *chainhash.Hash) {
 
 	iv := wire.NewInvVect(wire.InvTypeBlock, blockHash)
 	if err := dataMsg.AddInvVect(iv); err != nil {
-		p.logger.Infof("ERROR adding invVect to GETDATA message: %v", err)
+		p.logger.Error("failed to add invVect to GETDATA message", slog.String(typeKey, iv.Type.String()), slog.String(hashKey, blockHash.String()), slog.String(errKey, err.Error()))
 		return
 	}
 
 	if err := p.WriteMsg(dataMsg); err != nil {
-		p.logger.Infof("[%s] ERROR sending block data message: %v", p.String(), err)
+		p.logger.Error("failed to send GETDATA message", slog.String(hashKey, blockHash.String()), slog.String(typeKey, iv.Type.String()), slog.String(errKey, err.Error()))
 	} else {
-		p.logger.Infof("[%s] Sent GETDATA for block %v", p.String(), blockHash)
+		p.logger.Info("Sent GETDATA", slog.String(hashKey, blockHash.String()), slog.String(typeKey, iv.Type.String()))
 	}
 }
 
@@ -434,14 +461,10 @@ func (p *Peer) sendInvBatch(batch []*chainhash.Hash) {
 	for _, hash := range batch {
 		iv := wire.NewInvVect(wire.InvTypeTx, hash)
 		_ = invMsg.AddInvVect(iv)
+		p.logger.Debug("Sent INV", slog.String(hashKey, hash.String()), slog.String(typeKey, wire.InvTypeTx.String()))
 	}
 
 	p.writeChan <- invMsg
-
-	p.logger.Infof("[%s] Sent INV (%d items)", p.String(), len(batch))
-	for _, hash := range batch {
-		p.logger.Debugf("        %v", hash)
-	}
 }
 
 func (p *Peer) sendDataBatch(batch []*chainhash.Hash) {
@@ -450,12 +473,13 @@ func (p *Peer) sendDataBatch(batch []*chainhash.Hash) {
 	for _, hash := range batch {
 		iv := wire.NewInvVect(wire.InvTypeTx, hash)
 		_ = dataMsg.AddInvVect(iv)
+		p.logger.Debug("Sent GETDATA", slog.String(hashKey, hash.String()), slog.String(typeKey, wire.InvTypeTx.String()))
 	}
 
 	if err := p.WriteMsg(dataMsg); err != nil {
-		p.logger.Infof("[%s] ERROR sending tx data message: %v", p.String(), err)
+		p.logger.Error("failed to send tx data message", slog.String(errKey, err.Error()))
 	} else {
-		p.logger.Infof("[%s] Sent GETDATA (%d items)", p.String(), len(batch))
+		p.logger.Info("Sent GETDATA", slog.Int("items", len(batch)))
 	}
 }
 
@@ -477,27 +501,31 @@ func (p *Peer) writeChannelHandler() {
 			if errors.Is(err, io.EOF) {
 				panic("WRITE EOF")
 			}
-			p.logger.Errorf("[%s] Failed to write message: %v", p.address, err)
+			p.logger.Error("Failed to write message", slog.String(errKey, err.Error()))
 		}
 
-		go func(msg wire.Message) {
-			if msg.Command() == wire.CmdTx {
-				hash := msg.(*wire.MsgTx).TxHash()
-				if err := p.peerHandler.HandleTransactionSent(msg.(*wire.MsgTx), p); err != nil {
-					p.logger.Errorf("[%s] Unable to process tx %s: %v", p.address, hash.String(), err)
+		go func(message wire.Message) {
+			if message.Command() == wire.CmdTx {
+				msgTx, ok := message.(*wire.MsgTx)
+				if !ok {
+					return
+				}
+				hash := msgTx.TxHash()
+				if err := p.peerHandler.HandleTransactionSent(msgTx, p); err != nil {
+					p.logger.Error("Unable to process tx", slog.String(hashKey, hash.String()), slog.String(errKey, err.Error()))
 				}
 			}
 
-			switch m := msg.(type) {
+			switch m := message.(type) {
 			case *wire.MsgTx:
-				p.logger.Debugf("[%s] Sent %s: %s", p.address, strings.ToUpper(msg.Command()), m.TxHash().String())
+				p.logger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(message.Command())), slog.String(hashKey, m.TxHash().String()), slog.String(typeKey, "tx"))
 			case *wire.MsgBlock:
-				p.logger.Debugf("[%s] Sent %s: %s", p.address, strings.ToUpper(msg.Command()), m.BlockHash().String())
+				p.logger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(message.Command())), slog.String(hashKey, m.BlockHash().String()), slog.String(typeKey, "block"))
 			case *wire.MsgGetData:
-				p.logger.Debugf("[%s] Sent %s: %s", p.address, strings.ToUpper(msg.Command()), m.InvList[0].Hash.String())
+				p.logger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(message.Command())), slog.String(hashKey, m.InvList[0].Hash.String()), slog.String(typeKey, "getdata"))
 			case *wire.MsgInv:
 			default:
-				p.logger.Debugf("[%s] Sent %s", p.address, strings.ToUpper(msg.Command()))
+				p.logger.Debug(sentMsg, slog.String(commandKey, strings.ToUpper(message.Command())), slog.String(typeKey, "unknown"))
 			}
 		}(msg)
 	}
@@ -524,7 +552,7 @@ func (p *Peer) versionMessage(address string) *wire.MsgVersion {
 
 	nonce, err := wire.RandomUint64()
 	if err != nil {
-		p.logger.Errorf("[%s] RandomUint64: error generating nonce: %v", p.address, err)
+		p.logger.Error("RandomUint64: failed to generate nonce", slog.String(errKey, err.Error()))
 	}
 
 	msg := wire.NewMsgVersion(me, you, nonce, lastBlock)
@@ -543,7 +571,7 @@ out:
 		case <-pingTicker.C:
 			nonce, err := wire.RandomUint64()
 			if err != nil {
-				p.logger.Errorf("[%s] Not sending ping to %s: %v", p.address, p, err)
+				p.logger.Error("Not sending ping", slog.String(errKey, err.Error()))
 				continue
 			}
 			p.writeChan <- wire.NewMsgPing(nonce)
diff --git a/PeerManager.go b/PeerManager.go
index 7492f2d..524309a 100644
--- a/PeerManager.go
+++ b/PeerManager.go
@@ -1,13 +1,13 @@
 package p2p
 
 import (
+	"log/slog"
 	"sort"
 	"sync"
 	"time"
 
 	"github.com/libsv/go-p2p/chaincfg/chainhash"
 	"github.com/libsv/go-p2p/wire"
-	"github.com/ordishs/go-utils"
 )
 
 const defaultExcessiveBlockSize = 4000000000
@@ -17,7 +17,7 @@ type PeerManager struct {
 	peers      []PeerI
 	network    wire.BitcoinNet
 	batchDelay time.Duration
-	logger     utils.Logger
+	logger     *slog.Logger
 	ebs        int64
 }
 
@@ -25,7 +25,7 @@ type PeerManager struct {
 // messageCh is a channel that will be used to send messages from peers to the parent process
 // this is used to pass INV messages from the bitcoin network peers to the parent process
 // at the moment this is only used for Inv tx message for "seen", "sent" and "rejected" transactions
-func NewPeerManager(logger utils.Logger, network wire.BitcoinNet, options ...PeerManagerOptions) PeerManagerI {
+func NewPeerManager(logger *slog.Logger, network wire.BitcoinNet, options ...PeerManagerOptions) PeerManagerI {
 
 	pm := &PeerManager{
 		peers:   make([]PeerI, 0),
@@ -38,7 +38,7 @@ func NewPeerManager(logger utils.Logger, network wire.BitcoinNet, options ...Pee
 		option(pm)
 	}
 
-	logger.Infof("Excessive block size set to %d", pm.ebs)
+	logger.Info("Excessive block size set to", slog.Int64("block size", pm.ebs))
 	wire.SetLimits(uint64(pm.ebs))
 
 	return pm
diff --git a/PeerManager_Mock.go b/PeerManager_Mock.go
index ac2b376..18bc16b 100644
--- a/PeerManager_Mock.go
+++ b/PeerManager_Mock.go
@@ -1,17 +1,34 @@
 package p2p
 
-import "github.com/libsv/go-p2p/chaincfg/chainhash"
+import (
+	"context"
+	"log/slog"
 
-type TestLogger struct{}
+	"github.com/libsv/go-p2p/chaincfg/chainhash"
+)
 
-func (l TestLogger) LogLevel() int {
-	return 0
+type TestLogger struct {
+}
+
+func (h *TestLogger) Enabled(_ context.Context, _ slog.Level) bool {
+	return false
+}
+
+func (h *TestLogger) Handle(_ context.Context, _ slog.Record) error {
+	return nil
+}
+
+func (h *TestLogger) WithAttrs(_ []slog.Attr) slog.Handler {
+	return &TestLogger{}
+}
+
+func (h *TestLogger) WithGroup(_ string) slog.Handler {
+	return &TestLogger{}
+}
+
+func (h *TestLogger) Handler() slog.Handler {
+	return &TestLogger{}
 }
-func (l TestLogger) Debugf(format string, args ...interface{}) {}
-func (l TestLogger) Infof(format string, args ...interface{})  {}
-func (l TestLogger) Warnf(format string, args ...interface{})  {}
-func (l TestLogger) Errorf(format string, args ...interface{}) {}
-func (l TestLogger) Fatalf(format string, args ...interface{}) {}
 
 type PeerManagerMock struct {
 	Peers                 []PeerI
diff --git a/PeerManager_test.go b/PeerManager_test.go
index a5bc460..d935a38 100644
--- a/PeerManager_test.go
+++ b/PeerManager_test.go
@@ -2,6 +2,7 @@ package p2p
 
 import (
 	"fmt"
+	"log/slog"
 	"testing"
 	"time"
 
@@ -14,10 +15,12 @@ import (
 var (
 	tx1        = "b042f298deabcebbf15355aa3a13c7d7cfe96c44ac4f492735f936f8e50d06f6"
 	tx1Hash, _ = chainhash.NewHashFromStr(tx1)
-	logger     = TestLogger{}
 )
 
 func TestNewPeerManager(t *testing.T) {
+
+	logger := slog.New(&TestLogger{})
+
 	t.Run("nil peers no error", func(t *testing.T) {
 		pm := NewPeerManager(logger, wire.TestNet)
 		require.NotNil(t, pm)
@@ -61,7 +64,7 @@ func TestNewPeerManager(t *testing.T) {
 
 func TestAnnounceNewTransaction(t *testing.T) {
 	t.Run("announce tx", func(t *testing.T) {
-
+		logger := slog.New(&TestLogger{})
 		pm := NewPeerManager(logger, wire.TestNet, WithBatchDuration(1*time.Millisecond))
 		require.NotNil(t, pm)
 
@@ -82,6 +85,7 @@ func TestAnnounceNewTransaction(t *testing.T) {
 	})
 
 	t.Run("announce tx - multiple peers", func(t *testing.T) {
+		logger := slog.New(&TestLogger{})
 		pm := NewPeerManager(logger, wire.TestNet, WithBatchDuration(1*time.Millisecond))
 		require.NotNil(t, pm)
 
diff --git a/Peer_test.go b/Peer_test.go
index 25f0ce6..51e0d54 100644
--- a/Peer_test.go
+++ b/Peer_test.go
@@ -3,6 +3,7 @@ package p2p
 import (
 	"bytes"
 	"encoding/binary"
+	"log/slog"
 	"net"
 	"testing"
 	"time"
@@ -250,9 +251,9 @@ func newTestPeer(t *testing.T) (net.Conn, *Peer, *MockPeerHandler) {
 	peerConn, myConn := connutil.AsyncPipe()
 
 	peerHandler := NewMockPeerHandler()
-
+	logger := slog.New(&TestLogger{})
 	p, err := NewPeer(
-		&TestLogger{},
+		logger,
 		"MockPeerHandler:0000",
 		peerHandler,
 		wire.MainNet,
@@ -283,8 +284,9 @@ func newTestPeer(t *testing.T) (net.Conn, *Peer, *MockPeerHandler) {
 func newIncomingTestPeer(t *testing.T) (net.Conn, *Peer, *MockPeerHandler) {
 	peerConn, myConn := connutil.AsyncPipe()
 	peerHandler := NewMockPeerHandler()
+	logger := slog.New(&TestLogger{})
 	p, err := NewPeer(
-		&TestLogger{},
+		logger,
 		"MockPeerHandler:0000",
 		peerHandler,
 		wire.MainNet,
diff --git a/examples/simple/handler.go b/examples/simple/handler.go
index 0b7c4d8..0991738 100644
--- a/examples/simple/handler.go
+++ b/examples/simple/handler.go
@@ -3,49 +3,50 @@ package main
 import (
 	"fmt"
 
+	"log/slog"
+
 	"github.com/libsv/go-p2p"
 	"github.com/libsv/go-p2p/wire"
-	"github.com/ordishs/go-utils"
 )
 
 // SimplePeerHandler is a simple implementation of the PeerHandler interface.
 // This is how you can customize the behaviour of the peer.
 type SimplePeerHandler struct {
-	logger utils.Logger
+	logger *slog.Logger
 }
 
 func (s *SimplePeerHandler) HandleTransactionGet(msg *wire.InvVect, peer p2p.PeerI) ([]byte, error) {
-	s.logger.Infof("Peer %s requested transaction %s", peer.String(), msg.Hash.String())
+	s.logger.Info("Peer requested transaction", slog.String("hash", msg.Hash.String()), slog.String("peer", peer.String()))
 	// You should implement a store and return the transaction bytes here.
 	return nil, fmt.Errorf("transaction not found")
 }
 
 func (s *SimplePeerHandler) HandleTransactionSent(msg *wire.MsgTx, peer p2p.PeerI) error {
-	s.logger.Infof("Sent transaction %s to peer %s", msg.TxHash().String(), peer.String())
+	s.logger.Info("Sent transaction to peer", slog.String("hash", msg.TxHash().String()), slog.String("peer", peer.String()))
 	// This is called when a transaction is sent to a peer. You could save this to your store here.
 	return nil
 }
 
 func (s *SimplePeerHandler) HandleTransactionAnnouncement(msg *wire.InvVect, peer p2p.PeerI) error {
-	s.logger.Infof("Peer %s announced transaction %s", peer.String(), msg.Hash.String())
+	s.logger.Info("Peer announced transaction", slog.String("hash", msg.Hash.String()), slog.String("peer", peer.String()))
 	// This is called when a transaction is announced by a peer. Handle this as you wish.
 	return nil
 }
 
 func (s *SimplePeerHandler) HandleTransactionRejection(rejMsg *wire.MsgReject, peer p2p.PeerI) error {
-	s.logger.Infof("Peer %s rejected transaction %s", peer.String(), rejMsg.Hash.String())
+	s.logger.Info("Peer rejected transaction", slog.String("hash", rejMsg.Hash.String()), slog.String("peer", peer.String()))
 	// This is called when a transaction is rejected by a peer. Handle this as you wish.
 	return nil
 }
 
 func (s *SimplePeerHandler) HandleTransaction(msg *wire.MsgTx, peer p2p.PeerI) error {
-	s.logger.Infof("Received transaction %s from peer %s", msg.TxHash().String(), peer.String())
+	s.logger.Info("Received transaction from peer", slog.String("hash", msg.TxHash().String()), slog.String("peer", peer.String()))
 	// This is called when a transaction is received from a peer. Handle this as you wish.
 	return nil
 }
 
 func (s *SimplePeerHandler) HandleBlockAnnouncement(msg *wire.InvVect, peer p2p.PeerI) error {
-	s.logger.Infof("Peer %s announced block %s", peer.String(), msg.Hash.String())
+	s.logger.Info("Peer announced block", slog.String("hash", msg.Hash.String()), slog.String("peer", peer.String()))
 	// This is called when a block is announced by a peer. Handle this as you wish.
 	return nil
 }
@@ -56,7 +57,7 @@ func (s *SimplePeerHandler) HandleBlock(msg wire.Message, peer p2p.PeerI) error
 		return fmt.Errorf("failed to cast message to block message")
 	}
 
-	s.logger.Infof("Received block %s from peer %s", blockMsg.Header.BlockHash().String(), peer.String())
+	s.logger.Info("Received block from peer", slog.String("hash", blockMsg.Header.BlockHash().String()), slog.String("peer", peer.String()))
 	// This is called when a block is received from a peer. Handle this as you wish.
 	// note: the block message is a custom BlockMessage and not a wire.MsgBlock
 	return nil
diff --git a/examples/simple/main.go b/examples/simple/main.go
index e44c64c..788a93e 100644
--- a/examples/simple/main.go
+++ b/examples/simple/main.go
@@ -1,16 +1,16 @@
 package main
 
 import (
+	"log/slog"
 	"os"
 	"os/signal"
 
 	"github.com/libsv/go-p2p"
 	"github.com/libsv/go-p2p/wire"
-	"github.com/ordishs/gocore"
 )
 
 func main() {
-	logger := gocore.Log("simple-p2p-test")
+	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
 
 	// Make sure to use the correct network here.
 	//   For mainnet use wire.MainNet
@@ -26,11 +26,11 @@ func main() {
 
 	peer, err := p2p.NewPeer(logger, "localhost:58333", peerHandler, network)
 	if err != nil {
-		logger.Fatalf("failed to create peer: %s", err)
+		logger.Error("failed to create peer", slog.String("err", err.Error()))
 	}
 
 	if err = peerManager.AddPeer(peer); err != nil {
-		logger.Fatalf("failed to add peer: %s", err)
+		logger.Error("failed to add peer", slog.String("err", err.Error()))
 	}
 
 	// setup signal catching
diff --git a/go.mod b/go.mod
index 2e8fb04..7d55d5d 100644
--- a/go.mod
+++ b/go.mod
@@ -1,21 +1,15 @@
 module github.com/libsv/go-p2p
 
-go 1.19
+go 1.21.3
 
 require (
 	github.com/cbeuw/connutil v0.0.0-20200411215123-966bfaa51ee3
 	github.com/davecgh/go-spew v1.1.1
 	github.com/ordishs/go-utils v1.0.24
-	github.com/ordishs/gocore v1.0.33
 	github.com/stretchr/testify v1.8.1
 )
 
 require (
-	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
-	github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/sys v0.3.0 // indirect
-	golang.org/x/text v0.6.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index 91063db..9d01b36 100644
--- a/go.sum
+++ b/go.sum
@@ -3,18 +3,8 @@ github.com/cbeuw/connutil v0.0.0-20200411215123-966bfaa51ee3/go.mod h1:6jR2SzckG
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
-github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
-github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
-github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
-github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
-github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
-github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b h1:j7+1HpAFS1zy5+Q4qx1fWh90gTKwiN4QCGoY9TWyyO4=
-github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
 github.com/ordishs/go-utils v1.0.24 h1:QIVYaaN4LE5SnCRbLii7OOrkC2Qqvg4FVKe9zzA3Yd8=
 github.com/ordishs/go-utils v1.0.24/go.mod h1:k9G7Bbv2GwoOn9fwZx70yM5jwwIymkv+90FUKLudtyc=
-github.com/ordishs/gocore v1.0.33 h1:pJbrmi9OMNu73RtUpuzJK/4uvwgYmvuPlb6WxwYPW1g=
-github.com/ordishs/gocore v1.0.33/go.mod h1:Nm48yxIUBuKvVXwLC8bB8aQDNUsBpaoVRTtcmjKlhrQ=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -24,35 +14,6 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
 github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
-github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
-golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
-golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.3.0 h1:w8ZOecv6NaNa/zC8944JTU3vz4u6Lagfk4RPQxv92NQ=
-golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
-golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.6.0 h1:3XmdazWV+ubf7QgHSTWeykHOci5oeekaGJBLkrkaw4k=
-golang.org/x/text v0.6.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
-golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
-golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=