diff --git a/pool/blockpool.go b/blockchain/pool/blockpool.go
similarity index 88%
rename from pool/blockpool.go
rename to blockchain/pool/blockpool.go
index b2c8ba1..f8938f1 100644
--- a/pool/blockpool.go
+++ b/blockchain/pool/blockpool.go
@@ -4,8 +4,9 @@ import (
 	"encoding/hex"
 	"errors"
 
-	"github.com/Secured-Finance/dione/types"
+	types2 "github.com/Secured-Finance/dione/blockchain/types"
 	"github.com/fxamacker/cbor/v2"
+
 	"github.com/ledgerwatch/lmdb-go/lmdb"
 )
 
@@ -58,7 +59,7 @@ func NewBlockPool(path string) (*BlockPool, error) {
 	return pool, nil
 }
 
-func (bp *BlockPool) StoreBlock(block *types.Block) error {
+func (bp *BlockPool) StoreBlock(block *types2.Block) error {
 	return bp.dbEnv.Update(func(txn *lmdb.Txn) error {
 		data, err := cbor.Marshal(block)
 		if err != nil {
@@ -98,8 +99,8 @@ func (bp *BlockPool) HasBlock(blockHash string) (bool, error) {
 	return blockExists, nil
 }
 
-func (bp *BlockPool) FetchBlock(blockHash string) (*types.Block, error) {
-	var block types.Block
+func (bp *BlockPool) FetchBlock(blockHash string) (*types2.Block, error) {
+	var block types2.Block
 	err := bp.dbEnv.View(func(txn *lmdb.Txn) error {
 		data, err := txn.Get(bp.db, []byte(DefaultBlockPrefix+blockHash))
 		if err != nil {
@@ -117,8 +118,8 @@ func (bp *BlockPool) FetchBlock(blockHash string) (*types.Block, error) {
 	return &block, nil
 }
 
-func (bp *BlockPool) FetchBlockHeader(blockHash string) (*types.BlockHeader, error) {
-	var blockHeader types.BlockHeader
+func (bp *BlockPool) FetchBlockHeader(blockHash string) (*types2.BlockHeader, error) {
+	var blockHeader types2.BlockHeader
 	err := bp.dbEnv.View(func(txn *lmdb.Txn) error {
 		data, err := txn.Get(bp.db, []byte(DefaultBlockHeaderPrefix+blockHash))
 		if err != nil {
diff --git a/pool/mempool.go b/blockchain/pool/mempool.go
similarity index 86%
rename from pool/mempool.go
rename to blockchain/pool/mempool.go
index a5c8f47..0d7fe5d 100644
--- a/pool/mempool.go
+++ b/blockchain/pool/mempool.go
@@ -6,9 +6,9 @@ import (
 	"sync"
 	"time"
 
-	"github.com/Secured-Finance/dione/consensus/policy"
+	types2 "github.com/Secured-Finance/dione/blockchain/types"
 
-	"github.com/Secured-Finance/dione/types"
+	"github.com/Secured-Finance/dione/consensus/policy"
 
 	"github.com/Secured-Finance/dione/cache"
 )
@@ -39,7 +39,7 @@ func NewMempool(c cache.Cache) (*Mempool, error) {
 	return mp, nil
 }
 
-func (mp *Mempool) StoreTx(tx *types.Transaction) error {
+func (mp *Mempool) StoreTx(tx *types2.Transaction) error {
 	mp.m.Lock()
 	defer mp.m.Unlock()
 
@@ -50,15 +50,15 @@ func (mp *Mempool) StoreTx(tx *types.Transaction) error {
 	return err
 }
 
-func (mp *Mempool) GetTxsForNewBlock() []*types.Transaction {
+func (mp *Mempool) GetTxsForNewBlock() []*types2.Transaction {
 	mp.m.Lock()
 	defer mp.m.Unlock()
 
-	var txForBlock []*types.Transaction
-	var allTxs []*types.Transaction
+	var txForBlock []*types2.Transaction
+	var allTxs []*types2.Transaction
 
 	for i, v := range mp.txDescriptors {
-		var tx types.Transaction
+		var tx types2.Transaction
 		err := mp.cache.Get(DefaultTxPrefix+v, &tx)
 		if err != nil {
 			if err == cache.ErrNilValue {
diff --git a/types/block.go b/blockchain/types/block.go
similarity index 100%
rename from types/block.go
rename to blockchain/types/block.go
diff --git a/types/transaction.go b/blockchain/types/transaction.go
similarity index 81%
rename from types/transaction.go
rename to blockchain/types/transaction.go
index 463eac2..6ea276c 100644
--- a/types/transaction.go
+++ b/blockchain/types/transaction.go
@@ -17,7 +17,7 @@ type Transaction struct {
 func CreateTransaction(data []byte) *Transaction {
 	timestamp := time.Now()
 	encodedData := hex.EncodeToString(data)
-	hash := crypto.Keccak256([]byte(fmt.Sprintf("%d_%s", timestamp, encodedData)))
+	hash := crypto.Keccak256([]byte(fmt.Sprintf("%d_%s", timestamp.Unix(), encodedData)))
 	return &Transaction{
 		Hash:      hash,
 		Timestamp: timestamp,