diff --git a/identitychain/identitychain.go b/identitychain/identitychain.go
index d1a9fa012..c84cb412d 100644
--- a/identitychain/identitychain.go
+++ b/identitychain/identitychain.go
@@ -30,7 +30,7 @@ type IdentityChain struct {
 	CurrentEpochStartTime int64
 	NumberOfShards        int
 	NumberOfNodesInShard  int
-	PowMap                map[p2p.Peer]uint32
+	PowMap                map[p2p.Peer]string
 }
 
 func seekRandomNumber(EpochNum int, SelectedIdentitites []*node.Node) int {
@@ -171,6 +171,6 @@ func New(Peer p2p.Peer) *IdentityChain {
 	IDC := IdentityChain{}
 	IDC.Peer = Peer
 	IDC.log = log.New()
-	IDC.PowMap = make(map[p2p.Peer]uint32)
+	IDC.PowMap = make(map[p2p.Peer]string)
 	return &IDC
 }
diff --git a/identitychain/identitychain_handler.go b/identitychain/identitychain_handler.go
index 4e8ac8820..7b004fd2e 100644
--- a/identitychain/identitychain_handler.go
+++ b/identitychain/identitychain_handler.go
@@ -2,7 +2,6 @@ package identitychain
 
 import (
 	"bytes"
-	"encoding/binary"
 	"fmt"
 	"math/rand"
 	"net"
@@ -80,8 +79,7 @@ func (IDC *IdentityChain) registerIdentity(msgPayload []byte) {
 	proof := payload[offset : offset+32]
 	offset = offset + 32
 	Node := node.DeserializeWaitNode(payload[offset:])
-	id := int(IDC.PowMap[Node.Self])
-	req := pow.NewRequest(5, []byte(strconv.Itoa(id)))
+	req := IDC.PowMap[Node.Self]
 	ok, err := pow.Check(req, string(proof), []byte(""))
 	fmt.Println(err)
 	if ok {
@@ -102,30 +100,23 @@ func (IDC *IdentityChain) acceptNewConnection(msgPayload []byte) {
 		fmt.Println("accepted new connection")
 	}
 	fmt.Println("Sleeping for 2 secs ...")
-	time.Sleep(5 * time.Second)
+	time.Sleep(2 * time.Second)
 	Node := node.DeserializeWaitNode(identityPayload)
 	buffer := bytes.NewBuffer([]byte{})
 	src := rand.NewSource(time.Now().UnixNano())
 	rnd := rand.New(src)
-	challengeNonce := uint32(rnd.Int31())
-	//challengeNonce := uint32(rand.Intn(1000)) //fix so that different nonce is sent everytime.
-	fmt.Println("Challenge Nonce Sent:")
-	fmt.Println(challengeNonce)
-	IDC.PowMap[Node.Self] = challengeNonce
-	// 4 byte length of challengeNonce
-
-	fourBytes := make([]byte, 4)
-	binary.BigEndian.PutUint32(fourBytes, challengeNonce)
-	buffer.Write(fourBytes)
+	challengeNonce := int((rnd.Int31()))
+	req := pow.NewRequest(5, []byte(strconv.Itoa(challengeNonce)))
+	IDC.PowMap[Node.Self] = req
+	fmt.Println(req)
+	buffer.Write([]byte(req))
 	// 32 byte block hash
 	// buffer.Write(prevBlockHash)
 	// The message is missing previous BlockHash, this is because we don't actively maintain a identitychain
 	// This canbe included in the fulfill request.
-
 	// Message should be encrypted and then signed to follow PKE.
 	//IDC should accept node publickey, encrypt the nonce and blockhash
 	// Then sign the message by own private key and send the message back.
-	fmt.Println("Done sleeping. Ready or not here i come!")
 	msgToSend := proto_identity.ConstructIdentityMessage(proto_identity.REGISTER, buffer.Bytes())
 	p2p.SendMessage(Node.Self, msgToSend)
 }
diff --git a/node/node.go b/node/node.go
index 3676725c0..35fc1f7a6 100644
--- a/node/node.go
+++ b/node/node.go
@@ -2,11 +2,9 @@ package node
 
 import (
 	"bytes"
-	"encoding/binary"
 	"encoding/gob"
 	"fmt"
 	"net"
-	"strconv"
 	"sync"
 
 	"github.com/simple-rules/harmony-benchmark/crypto/pki"
@@ -155,7 +153,7 @@ func NewNodefromIDC(node Node, consensus *consensus.Consensus, db *db.LDBDatabas
 		node.blockchain = genesisBlock
 
 		// UTXO pool from Genesis block
-		node.UtxoPool = blockchain.CreateUTXOPoolFromGenesisBlockChain(node.blockchain)
+		//node.UtxoPool = blockchain.CreateUTXOPoolFromGenesisBlockChain(node.blockchain)
 
 		// Initialize level db.
 		node.db = db
@@ -173,12 +171,9 @@ func (node *Node) processPOWMessage(message []byte) {
 		fmt.Println("Could not read payload")
 	}
 	IDCPeer := node.IDCPeer
-	offset := 0
 	// 4 byte challengeNonce id
-	challengeNonce := int(binary.BigEndian.Uint32(payload[offset : offset+4]))
-	offset += 4
-	fmt.Println(challengeNonce)
-	req := pow.NewRequest(5, []byte(strconv.Itoa(challengeNonce)))
+	req := string(payload)
+	fmt.Println(req)
 	proof, _ := pow.Fulfil(req, []byte("")) //"This could be blockhasdata"
 	buffer := bytes.NewBuffer([]byte{})
 	proofBytes := make([]byte, 32) //proof seems to be 32 byte here