diff --git a/block_pool.go b/block_pool.go
index 090871fd38..69c7a54de6 100644
--- a/block_pool.go
+++ b/block_pool.go
@@ -314,11 +314,10 @@ out:
 			// sm.eth.EventMux().Post(NewBlockEvent{block})
 			// otherwise process and don't emit anything
 			if len(blocks) > 0 {
-				chainManager := self.eth.ChainManager()
-				// Test and import
-				bchain := chain.NewChain(blocks)
-				_, err := chainManager.TestChain(bchain)
-				if err != nil && !chain.IsTDError(err) {
+				chainman := self.eth.ChainManager()
+
+				err := chainman.InsertChain(blocks)
+				if err != nil {
 					poollogger.Debugln(err)
 
 					self.Reset()
@@ -332,12 +331,37 @@ out:
 					self.peer.StopWithReason(DiscBadPeer)
 					self.td = ethutil.Big0
 					self.peer = nil
-				} else {
-					chainManager.InsertChain(bchain)
+
 					for _, block := range blocks {
 						self.Remove(block.Hash())
 					}
 				}
+
+				/*
+					// Test and import
+					bchain := chain.NewChain(blocks)
+					_, err := chainManager.TestChain(bchain)
+					if err != nil && !chain.IsTDError(err) {
+						poollogger.Debugln(err)
+
+						self.Reset()
+
+						if self.peer != nil && self.peer.conn != nil {
+							poollogger.Debugf("Punishing peer for supplying bad chain (%v)\n", self.peer.conn.RemoteAddr())
+						}
+
+						// This peer gave us bad hashes and made us fetch a bad chain, therefor he shall be punished.
+						self.eth.BlacklistPeer(self.peer)
+						self.peer.StopWithReason(DiscBadPeer)
+						self.td = ethutil.Big0
+						self.peer = nil
+					} else {
+						chainManager.InsertChain(bchain)
+						for _, block := range blocks {
+							self.Remove(block.Hash())
+						}
+					}
+				*/
 			}
 		}
 	}
diff --git a/chain/block_manager.go b/chain/block_manager.go
index fdb221cc3a..4d8d8dae68 100644
--- a/chain/block_manager.go
+++ b/chain/block_manager.go
@@ -246,7 +246,7 @@ func (sm *BlockManager) ProcessWithParent(block, parent *Block) (td *big.Int, me
 		return
 	}
 
-	state.Update(nil)
+	state.Update(ethutil.Big0)
 
 	if !block.State().Cmp(state) {
 		err = fmt.Errorf("invalid merkle root. received=%x got=%x", block.Root(), state.Root())
diff --git a/chain/chain_manager.go b/chain/chain_manager.go
index 0c3a7a9289..75c8b22a27 100644
--- a/chain/chain_manager.go
+++ b/chain/chain_manager.go
@@ -321,6 +321,24 @@ func NewChain(blocks Blocks) *BlockChain {
 	return chain
 }
 
+// This function assumes you've done your checking. No checking is done at this stage anymore
+func (self *ChainManager) InsertChain(chain Blocks) error {
+	for _, block := range chain {
+		td, messages, err := self.Ethereum.BlockManager().Process(block)
+		if err != nil {
+			return err
+		}
+
+		self.add(block)
+		self.SetTotalDifficulty(td)
+		self.Ethereum.EventMux().Post(NewBlockEvent{block})
+		self.Ethereum.EventMux().Post(messages)
+	}
+
+	return nil
+}
+
+/*
 // This function assumes you've done your checking. No checking is done at this stage anymore
 func (self *ChainManager) InsertChain(chain *BlockChain) {
 	for e := chain.Front(); e != nil; e = e.Next() {
@@ -338,7 +356,9 @@ func (self *ChainManager) InsertChain(chain *BlockChain) {
 		chainlogger.Infof("Imported %d blocks. #%v (%x) / %#v (%x)", chain.Len(), front.Number, front.Hash()[0:4], back.Number, back.Hash()[0:4])
 	}
 }
+*/
 
+/*
 func (self *ChainManager) TestChain(chain *BlockChain) (td *big.Int, err error) {
 	self.workingChain = chain
 	defer func() { self.workingChain = nil }()
@@ -381,3 +401,4 @@ func (self *ChainManager) TestChain(chain *BlockChain) (td *big.Int, err error)
 
 	return
 }
+*/
diff --git a/chain/transaction.go b/chain/transaction.go
index d81a0ea1b6..47257a3f0e 100644
--- a/chain/transaction.go
+++ b/chain/transaction.go
@@ -79,12 +79,7 @@ func (tx *Transaction) IsContract() bool {
 
 func (tx *Transaction) CreationAddress(state *state.State) []byte {
 	// Generate a new address
-	addr := crypto.Sha3(ethutil.NewValue([]interface{}{tx.Sender(), tx.Nonce}).Encode())[12:]
-	//for i := uint64(0); state.GetStateObject(addr) != nil; i++ {
-	//	addr = crypto.Sha3(ethutil.NewValue([]interface{}{tx.Sender(), tx.Nonce + i}).Encode())[12:]
-	//}
-
-	return addr
+	return crypto.Sha3(ethutil.NewValue([]interface{}{tx.Sender(), tx.Nonce}).Encode())[12:]
 }
 
 func (tx *Transaction) Signature(key []byte) []byte {
diff --git a/chain/transaction_pool.go b/chain/transaction_pool.go
index ff75089d65..fbf8821639 100644
--- a/chain/transaction_pool.go
+++ b/chain/transaction_pool.go
@@ -114,7 +114,6 @@ func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
 	}
 
 	// Get the sender
-	//sender := pool.Ethereum.BlockManager().procState.GetAccount(tx.Sender())
 	sender := pool.Ethereum.BlockManager().CurrentState().GetAccount(tx.Sender())
 
 	totAmount := new(big.Int).Set(tx.Value)
@@ -136,6 +135,34 @@ func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
 	return nil
 }
 
+func (self *TxPool) Add(tx *Transaction) error {
+	hash := tx.Hash()
+	foundTx := FindTx(self.pool, func(tx *Transaction, e *list.Element) bool {
+		return bytes.Compare(tx.Hash(), hash) == 0
+	})
+
+	if foundTx != nil {
+		return fmt.Errorf("Known transaction (%x)", hash[0:4])
+	}
+
+	err := self.ValidateTransaction(tx)
+	if err != nil {
+		return err
+	}
+
+	self.addTransaction(tx)
+
+	tmp := make([]byte, 4)
+	copy(tmp, tx.Recipient)
+
+	txplogger.Debugf("(t) %x => %x (%v) %x\n", tx.Sender()[:4], tmp, tx.Value, tx.Hash())
+
+	// Notify the subscribers
+	self.Ethereum.EventMux().Post(TxPreEvent{tx})
+
+	return nil
+}
+
 func (pool *TxPool) queueHandler() {
 out:
 	for {
@@ -172,9 +199,11 @@ out:
 	}
 }
 
+/*
 func (pool *TxPool) QueueTransaction(tx *Transaction) {
 	pool.queueChan <- tx
 }
+*/
 
 func (pool *TxPool) CurrentTransactions() []*Transaction {
 	pool.mutex.Lock()
diff --git a/cmd/mist/bindings.go b/cmd/mist/bindings.go
index 480c38b2ef..cd139c67f8 100644
--- a/cmd/mist/bindings.go
+++ b/cmd/mist/bindings.go
@@ -26,7 +26,6 @@ import (
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/xeth"
 )
 
 type plugin struct {
@@ -46,12 +45,12 @@ func (gui *Gui) LogPrint(level logger.LogLevel, msg string) {
 		}
 	*/
 }
-func (gui *Gui) Transact(recipient, value, gas, gasPrice, d string) (*xeth.JSReceipt, error) {
+func (gui *Gui) Transact(recipient, value, gas, gasPrice, d string) (string, error) {
 	var data string
 	if len(recipient) == 0 {
 		code, err := ethutil.Compile(d, false)
 		if err != nil {
-			return nil, err
+			return "", err
 		}
 		data = ethutil.Bytes2Hex(code)
 	} else {
diff --git a/cmd/mist/ui_lib.go b/cmd/mist/ui_lib.go
index 4e480144f1..15799eb6a0 100644
--- a/cmd/mist/ui_lib.go
+++ b/cmd/mist/ui_lib.go
@@ -127,7 +127,11 @@ func (self *UiLib) PastPeers() *ethutil.List {
 
 func (self *UiLib) ImportTx(rlpTx string) {
 	tx := chain.NewTransactionFromBytes(ethutil.Hex2Bytes(rlpTx))
-	self.eth.TxPool().QueueTransaction(tx)
+	//self.eth.TxPool().QueueTransaction(tx)
+	err := self.eth.TxPool().Add(tx)
+	if err != nil {
+		guilogger.Infoln("import tx failed ", err)
+	}
 }
 
 func (self *UiLib) EvalJavascriptFile(path string) {
@@ -305,7 +309,7 @@ func mapToTxParams(object map[string]interface{}) map[string]string {
 	return conv
 }
 
-func (self *UiLib) Transact(params map[string]interface{}) (*xeth.JSReceipt, error) {
+func (self *UiLib) Transact(params map[string]interface{}) (string, error) {
 	object := mapToTxParams(params)
 
 	return self.JSXEth.Transact(
diff --git a/ethutil/big.go b/ethutil/big.go
index 07d1386e18..d4f6361e9a 100644
--- a/ethutil/big.go
+++ b/ethutil/big.go
@@ -62,6 +62,16 @@ func S256(x *big.Int) *big.Int {
 	}
 }
 
+func FirstBitSet(v *big.Int) *big.Int {
+	for i := 0; i < v.BitLen(); i++ {
+		if v.Bit(i) > 0 {
+			return big.NewInt(int64(i))
+		}
+	}
+
+	return big.NewInt(int64(v.BitLen()))
+}
+
 // Big to bytes
 //
 // Returns the bytes of a big integer with the size specified by **base**
diff --git a/miner/miner.go b/miner/miner.go
index 9152d532b2..6fe5a18ac0 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -203,7 +203,7 @@ func (self *Miner) mine() {
 	// Accumulate the rewards included for this block
 	blockManager.AccumelateRewards(block.State(), block, parent)
 
-	block.State().Update(nil)
+	block.State().Update(ethutil.Big0)
 
 	minerlogger.Infof("Mining on block. Includes %v transactions", len(transactions))
 
@@ -211,12 +211,13 @@ func (self *Miner) mine() {
 	nonce := self.pow.Search(block, self.powQuitCh)
 	if nonce != nil {
 		block.Nonce = nonce
-		lchain := chain.NewChain(chain.Blocks{block})
-		_, err := chainMan.TestChain(lchain)
+		//lchain := chain.NewChain(chain.Blocks{block})
+		//_, err := chainMan.TestChain(lchain)
+		err := chainMan.InsertChain(chain.Blocks{block})
 		if err != nil {
 			minerlogger.Infoln(err)
 		} else {
-			chainMan.InsertChain(lchain)
+			//chainMan.InsertChain(lchain)
 			//self.eth.EventMux().Post(chain.NewBlockEvent{block})
 			self.eth.Broadcast(wire.MsgBlockTy, []interface{}{block.Value().Val})
 
diff --git a/peer.go b/peer.go
index 86423c816d..1b5f47f115 100644
--- a/peer.go
+++ b/peer.go
@@ -430,7 +430,13 @@ func (p *Peer) HandleInbound() {
 				// processing when a new block is found
 				for i := 0; i < msg.Data.Len(); i++ {
 					tx := chain.NewTransactionFromValue(msg.Data.Get(i))
-					p.ethereum.TxPool().QueueTransaction(tx)
+					err := p.ethereum.TxPool().Add(tx)
+					if err != nil {
+						peerlogger.Infoln(err)
+					} else {
+						peerlogger.Infof("tx OK (%x)\n", tx.Hash()[0:4])
+					}
+					//p.ethereum.TxPool().QueueTransaction(tx)
 				}
 			case wire.MsgGetPeersTy:
 				// Peer asked for list of connected peers
diff --git a/state/state.go b/state/state.go
index 0a7f717fee..732a1192b4 100644
--- a/state/state.go
+++ b/state/state.go
@@ -249,7 +249,6 @@ func (s *State) Reset() {
 			continue
 		}
 
-		//stateObject.state.Reset()
 		stateObject.Reset()
 	}
 
@@ -281,6 +280,7 @@ func (self *State) Update(gasUsed *big.Int) {
 	var deleted bool
 
 	// Refund any gas that's left
+	// XXX THIS WILL CHANGE IN POC8
 	uhalf := new(big.Int).Div(gasUsed, ethutil.Big2)
 	for addr, refs := range self.refund {
 		for _, ref := range refs {
@@ -289,6 +289,7 @@ func (self *State) Update(gasUsed *big.Int) {
 			self.GetStateObject([]byte(addr)).AddBalance(refund.Mul(refund, ref.price))
 		}
 	}
+	self.refund = make(map[string][]refund)
 
 	for _, stateObject := range self.stateObjects {
 		if stateObject.remove {
diff --git a/state/state_object.go b/state/state_object.go
index 5ce74c434a..8aa1267859 100644
--- a/state/state_object.go
+++ b/state/state_object.go
@@ -214,7 +214,7 @@ func (c *StateObject) ConvertGas(gas, price *big.Int) error {
 func (self *StateObject) SetGasPool(gasLimit *big.Int) {
 	self.gasPool = new(big.Int).Set(gasLimit)
 
-	statelogger.DebugDetailf("%x: fuel (+ %v)", self.Address(), self.gasPool)
+	statelogger.Debugf("%x: gas (+ %v)", self.Address(), self.gasPool)
 }
 
 func (self *StateObject) BuyGas(gas, price *big.Int) error {
diff --git a/vm/vm_debug.go b/vm/vm_debug.go
index ae5a201759..18d3018a0f 100644
--- a/vm/vm_debug.go
+++ b/vm/vm_debug.go
@@ -151,7 +151,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
 		// Stack checks only
 		case ISZERO, CALLDATALOAD, POP, JUMP, NOT: // 1
 			require(1)
-		case ADD, SUB, DIV, SDIV, MOD, SMOD, EXP, LT, GT, SLT, SGT, EQ, AND, OR, XOR, BYTE: // 2
+		case ADD, SUB, DIV, SDIV, MOD, SMOD, LT, GT, SLT, SGT, EQ, AND, OR, XOR, BYTE: // 2
 			require(2)
 		case ADDMOD, MULMOD: // 3
 			require(3)
@@ -169,6 +169,15 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
 			gas.Set(GasLog)
 			addStepGasUsage(new(big.Int).Mul(big.NewInt(int64(n)), GasLog))
 			addStepGasUsage(new(big.Int).Add(mSize, mStart))
+		case EXP:
+			require(2)
+
+			expGas := ethutil.FirstBitSet(stack.data[stack.Len()-2])
+			expGas.Div(expGas, u256(8))
+			expGas.Sub(u256(32), expGas)
+			expGas.Add(expGas, u256(1))
+
+			gas.Set(expGas)
 		// Gas only
 		case STOP:
 			gas.Set(ethutil.Big0)
diff --git a/xeth/hexface.go b/xeth/hexface.go
index 5ef3eaf1a3..31685403de 100644
--- a/xeth/hexface.go
+++ b/xeth/hexface.go
@@ -177,19 +177,25 @@ func (self *JSXEth) FromNumber(str string) string {
 	return ethutil.BigD(ethutil.Hex2Bytes(str)).String()
 }
 
-func (self *JSXEth) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (*JSReceipt, error) {
-	var hash []byte
-	var contractCreation bool
-	if len(toStr) == 0 {
-		contractCreation = true
+func (self *JSXEth) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr string) (string, error) {
+	var (
+		to       []byte
+		value    = ethutil.NewValue(valueStr)
+		gas      = ethutil.NewValue(gasStr)
+		gasPrice = ethutil.NewValue(gasPriceStr)
+		data     []byte
+	)
+
+	if ethutil.IsHex(codeStr) {
+		data = ethutil.Hex2Bytes(codeStr[2:])
 	} else {
-		// Check if an address is stored by this address
-		addr := self.World().Config().Get("NameReg").StorageString(toStr).Bytes()
-		if len(addr) > 0 {
-			hash = addr
-		} else {
-			hash = ethutil.Hex2Bytes(toStr)
-		}
+		data = ethutil.Hex2Bytes(codeStr)
+	}
+
+	if ethutil.IsHex(toStr) {
+		to = ethutil.Hex2Bytes(toStr[2:])
+	} else {
+		to = ethutil.Hex2Bytes(toStr)
 	}
 
 	var keyPair *crypto.KeyPair
@@ -201,47 +207,77 @@ func (self *JSXEth) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr
 	}
 
 	if err != nil {
-		return nil, err
+		return "", err
 	}
 
-	var (
-		value    = ethutil.Big(valueStr)
-		gas      = ethutil.Big(gasStr)
-		gasPrice = ethutil.Big(gasPriceStr)
-		data     []byte
-		tx       *chain.Transaction
-	)
-
-	if ethutil.IsHex(codeStr) {
-		data = ethutil.Hex2Bytes(codeStr[2:])
-	} else {
-		data = ethutil.Hex2Bytes(codeStr)
+	tx, err := self.XEth.Transact(keyPair, to, value, gas, gasPrice, data)
+	if err != nil {
+		return "", err
 	}
-
-	if contractCreation {
-		tx = chain.NewContractCreationTx(value, gas, gasPrice, data)
-	} else {
-		tx = chain.NewTransactionMessage(hash, value, gas, gasPrice, data)
+	if chain.IsContractAddr(to) {
+		return ethutil.Bytes2Hex(tx.CreationAddress(nil)), nil
 	}
 
-	acc := self.obj.BlockManager().TransState().GetOrNewStateObject(keyPair.Address())
-	tx.Nonce = acc.Nonce
-	acc.Nonce += 1
-	self.obj.BlockManager().TransState().UpdateStateObject(acc)
+	return ethutil.Bytes2Hex(tx.Hash()), nil
+
+	/*
+		var hash []byte
+		var contractCreation bool
+		if len(toStr) == 0 {
+			contractCreation = true
+		} else {
+			// Check if an address is stored by this address
+			addr := self.World().Config().Get("NameReg").StorageString(toStr).Bytes()
+			if len(addr) > 0 {
+				hash = addr
+			} else {
+				hash = ethutil.Hex2Bytes(toStr)
+			}
+		}
+
 
-	tx.Sign(keyPair.PrivateKey)
-	self.obj.TxPool().QueueTransaction(tx)
+		var (
+			value    = ethutil.Big(valueStr)
+			gas      = ethutil.Big(gasStr)
+			gasPrice = ethutil.Big(gasPriceStr)
+			data     []byte
+			tx       *chain.Transaction
+		)
 
-	if contractCreation {
-		pipelogger.Infof("Contract addr %x", tx.CreationAddress(self.World().State()))
-	}
+		if ethutil.IsHex(codeStr) {
+			data = ethutil.Hex2Bytes(codeStr[2:])
+		} else {
+			data = ethutil.Hex2Bytes(codeStr)
+		}
 
-	return NewJSReciept(contractCreation, tx.CreationAddress(self.World().State()), tx.Hash(), keyPair.Address()), nil
+		if contractCreation {
+			tx = chain.NewContractCreationTx(value, gas, gasPrice, data)
+		} else {
+			tx = chain.NewTransactionMessage(hash, value, gas, gasPrice, data)
+		}
+
+		acc := self.obj.BlockManager().TransState().GetOrNewStateObject(keyPair.Address())
+		tx.Nonce = acc.Nonce
+		acc.Nonce += 1
+		self.obj.BlockManager().TransState().UpdateStateObject(acc)
+
+		tx.Sign(keyPair.PrivateKey)
+		self.obj.TxPool().QueueTransaction(tx)
+
+		if contractCreation {
+			pipelogger.Infof("Contract addr %x", tx.CreationAddress(self.World().State()))
+		}
+
+		return NewJSReciept(contractCreation, tx.CreationAddress(self.World().State()), tx.Hash(), keyPair.Address()), nil
+	*/
 }
 
 func (self *JSXEth) PushTx(txStr string) (*JSReceipt, error) {
 	tx := chain.NewTransactionFromBytes(ethutil.Hex2Bytes(txStr))
-	self.obj.TxPool().QueueTransaction(tx)
+	err := self.obj.TxPool().Add(tx)
+	if err != nil {
+		return nil, err
+	}
 	return NewJSReciept(tx.CreatesContract(), tx.CreationAddress(self.World().State()), tx.Hash(), tx.Sender()), nil
 }
 
diff --git a/xeth/pipe.go b/xeth/pipe.go
index abed8ef9a9..6e2f325c5a 100644
--- a/xeth/pipe.go
+++ b/xeth/pipe.go
@@ -6,7 +6,6 @@ package xeth
 
 import (
 	"fmt"
-	"strings"
 
 	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/crypto"
@@ -93,7 +92,7 @@ func (self *XEth) Exists(addr []byte) bool {
 	return self.World().Get(addr) != nil
 }
 
-func (self *XEth) TransactString(key *crypto.KeyPair, rec string, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
+func (self *XEth) TransactString(key *crypto.KeyPair, rec string, value, gas, price *ethutil.Value, data []byte) (*chain.Transaction, error) {
 	// Check if an address is stored by this address
 	var hash []byte
 	addr := self.World().Config().Get("NameReg").StorageString(rec).Bytes()
@@ -108,55 +107,62 @@ func (self *XEth) TransactString(key *crypto.KeyPair, rec string, value, gas, pr
 	return self.Transact(key, hash, value, gas, price, data)
 }
 
-func (self *XEth) Transact(key *crypto.KeyPair, rec []byte, value, gas, price *ethutil.Value, data []byte) ([]byte, error) {
+func (self *XEth) Transact(key *crypto.KeyPair, to []byte, value, gas, price *ethutil.Value, data []byte) (*chain.Transaction, error) {
 	var hash []byte
 	var contractCreation bool
-	if rec == nil {
+	if chain.IsContractAddr(to) {
 		contractCreation = true
+	} else {
+		// Check if an address is stored by this address
+		addr := self.World().Config().Get("NameReg").Storage(to).Bytes()
+		if len(addr) > 0 {
+			hash = addr
+		} else {
+			hash = to
+		}
 	}
 
 	var tx *chain.Transaction
-	// Compile and assemble the given data
 	if contractCreation {
-		script, err := ethutil.Compile(string(data), false)
-		if err != nil {
-			return nil, err
-		}
-
-		tx = chain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), script)
+		tx = chain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), data)
 	} else {
-		data := ethutil.StringToByteFunc(string(data), func(s string) (ret []byte) {
-			slice := strings.Split(s, "\n")
-			for _, dataItem := range slice {
-				d := ethutil.FormatData(dataItem)
-				ret = append(ret, d...)
-			}
-			return
-		})
-
 		tx = chain.NewTransactionMessage(hash, value.BigInt(), gas.BigInt(), price.BigInt(), data)
 	}
 
-	acc := self.blockManager.TransState().GetOrNewStateObject(key.Address())
-	tx.Nonce = acc.Nonce
-	acc.Nonce += 1
-	self.blockManager.TransState().UpdateStateObject(acc)
+	state := self.blockManager.TransState()
+	nonce := state.GetNonce(key.Address())
 
+	tx.Nonce = nonce
 	tx.Sign(key.PrivateKey)
-	self.obj.TxPool().QueueTransaction(tx)
+	err := self.obj.TxPool().Add(tx)
+	if err != nil {
+		return nil, err
+	}
+
+	state.SetNonce(key.Address(), nonce+1)
 
 	if contractCreation {
 		addr := tx.CreationAddress(self.World().State())
 		pipelogger.Infof("Contract addr %x\n", addr)
-
-		return addr, nil
 	}
 
-	return tx.Hash(), nil
+	return tx, nil
+
+	//acc := self.blockManager.TransState().GetOrNewStateObject(key.Address())
+	//self.obj.TxPool().QueueTransaction(tx)
+
+	//acc.Nonce += 1
+	//self.blockManager.TransState().UpdateStateObject(acc)
+
 }
 
 func (self *XEth) PushTx(tx *chain.Transaction) ([]byte, error) {
-	self.obj.TxPool().QueueTransaction(tx)
+	err := self.obj.TxPool().Add(tx)
+	if err != nil {
+		return nil, err
+	}
+
+	//self.obj.TxPool().QueueTransaction(tx)
 	if tx.Recipient == nil {
 		addr := tx.CreationAddress(self.World().State())
 		pipelogger.Infof("Contract addr %x\n", addr)