diff --git a/block_pool.go b/block_pool.go
index 334db9c1b5..49fa07eb15 100644
--- a/block_pool.go
+++ b/block_pool.go
@@ -9,7 +9,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/ethwire"
@@ -20,7 +20,7 @@ var poollogger = ethlog.NewLogger("BPOOL")
 type block struct {
 	from      *Peer
 	peer      *Peer
-	block     *ethchain.Block
+	block     *chain.Block
 	reqAt     time.Time
 	requested int
 }
@@ -73,7 +73,7 @@ func (self *BlockPool) HasCommonHash(hash []byte) bool {
 	return self.eth.ChainManager().GetBlock(hash) != nil
 }
 
-func (self *BlockPool) Blocks() (blocks ethchain.Blocks) {
+func (self *BlockPool) Blocks() (blocks chain.Blocks) {
 	for _, item := range self.pool {
 		if item.block != nil {
 			blocks = append(blocks, item.block)
@@ -123,15 +123,15 @@ func (self *BlockPool) AddHash(hash []byte, peer *Peer) {
 	}
 }
 
-func (self *BlockPool) Add(b *ethchain.Block, peer *Peer) {
+func (self *BlockPool) Add(b *chain.Block, peer *Peer) {
 	self.addBlock(b, peer, false)
 }
 
-func (self *BlockPool) AddNew(b *ethchain.Block, peer *Peer) {
+func (self *BlockPool) AddNew(b *chain.Block, peer *Peer) {
 	self.addBlock(b, peer, true)
 }
 
-func (self *BlockPool) addBlock(b *ethchain.Block, peer *Peer, newBlock bool) {
+func (self *BlockPool) addBlock(b *chain.Block, peer *Peer, newBlock bool) {
 	self.mut.Lock()
 	defer self.mut.Unlock()
 
@@ -262,7 +262,7 @@ out:
 			/*
 				if !self.fetchingHashes {
 					blocks := self.Blocks()
-					ethchain.BlockBy(ethchain.Number).Sort(blocks)
+					chain.BlockBy(chain.Number).Sort(blocks)
 
 					if len(blocks) > 0 {
 						if !self.eth.ChainManager().HasBlock(b.PrevHash) && self.pool[string(b.PrevHash)] == nil && !self.fetchingHashes {
@@ -283,7 +283,7 @@ out:
 			break out
 		case <-procTimer.C:
 			blocks := self.Blocks()
-			ethchain.BlockBy(ethchain.Number).Sort(blocks)
+			chain.BlockBy(chain.Number).Sort(blocks)
 
 			// Find common block
 			for i, block := range blocks {
diff --git a/ethchain/.gitignore b/chain/.gitignore
similarity index 100%
rename from ethchain/.gitignore
rename to chain/.gitignore
diff --git a/ethchain/asm.go b/chain/asm.go
similarity index 98%
rename from ethchain/asm.go
rename to chain/asm.go
index 57bb2fcf9b..875321c1ce 100644
--- a/ethchain/asm.go
+++ b/chain/asm.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"fmt"
diff --git a/ethchain/block.go b/chain/block.go
similarity index 99%
rename from ethchain/block.go
rename to chain/block.go
index a10da97ec9..17a19d391d 100644
--- a/ethchain/block.go
+++ b/chain/block.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/ethchain/bloom.go b/chain/bloom.go
similarity index 97%
rename from ethchain/bloom.go
rename to chain/bloom.go
index 5317ca0b1c..9d2cf439d2 100644
--- a/ethchain/bloom.go
+++ b/chain/bloom.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 type BloomFilter struct {
 	bin []byte
diff --git a/ethchain/bloom9.go b/chain/bloom9.go
similarity index 98%
rename from ethchain/bloom9.go
rename to chain/bloom9.go
index 8fa7b6339a..60cafdb4ba 100644
--- a/ethchain/bloom9.go
+++ b/chain/bloom9.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"math/big"
diff --git a/ethchain/bloom9_test.go b/chain/bloom9_test.go
similarity index 94%
rename from ethchain/bloom9_test.go
rename to chain/bloom9_test.go
index 40f30f35d8..b5a269504e 100644
--- a/ethchain/bloom9_test.go
+++ b/chain/bloom9_test.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"testing"
diff --git a/ethchain/bloom_test.go b/chain/bloom_test.go
similarity index 95%
rename from ethchain/bloom_test.go
rename to chain/bloom_test.go
index ea53d539c4..13c0d94e49 100644
--- a/ethchain/bloom_test.go
+++ b/chain/bloom_test.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import "testing"
 
diff --git a/ethchain/chain_manager.go b/chain/chain_manager.go
similarity index 99%
rename from ethchain/chain_manager.go
rename to chain/chain_manager.go
index 46990bb224..83ae21dcc1 100644
--- a/ethchain/chain_manager.go
+++ b/chain/chain_manager.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/chain/chain_manager_test.go b/chain/chain_manager_test.go
new file mode 100644
index 0000000000..fef1d2010b
--- /dev/null
+++ b/chain/chain_manager_test.go
@@ -0,0 +1 @@
+package chain
diff --git a/ethchain/dagger.go b/chain/dagger.go
similarity index 99%
rename from ethchain/dagger.go
rename to chain/dagger.go
index 7efcf469de..bb6b136f6d 100644
--- a/ethchain/dagger.go
+++ b/chain/dagger.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"hash"
diff --git a/ethchain/dagger_test.go b/chain/dagger_test.go
similarity index 95%
rename from ethchain/dagger_test.go
rename to chain/dagger_test.go
index 2ffba0485d..b40cd9742e 100644
--- a/ethchain/dagger_test.go
+++ b/chain/dagger_test.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"math/big"
diff --git a/ethchain/derive_sha.go b/chain/derive_sha.go
similarity index 95%
rename from ethchain/derive_sha.go
rename to chain/derive_sha.go
index b41252e39a..92db90d957 100644
--- a/ethchain/derive_sha.go
+++ b/chain/derive_sha.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"github.com/ethereum/go-ethereum/ethtrie"
diff --git a/ethchain/error.go b/chain/error.go
similarity index 99%
rename from ethchain/error.go
rename to chain/error.go
index 82949141ab..204b8b8738 100644
--- a/ethchain/error.go
+++ b/chain/error.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"fmt"
diff --git a/ethchain/events.go b/chain/events.go
similarity index 95%
rename from ethchain/events.go
rename to chain/events.go
index 304e741b79..2703e955d0 100644
--- a/ethchain/events.go
+++ b/chain/events.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 // TxPreEvent is posted when a transaction enters the transaction pool.
 type TxPreEvent struct{ Tx *Transaction }
diff --git a/ethchain/fees.go b/chain/fees.go
similarity index 80%
rename from ethchain/fees.go
rename to chain/fees.go
index 901357439b..4df6d365d8 100644
--- a/ethchain/fees.go
+++ b/chain/fees.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"math/big"
diff --git a/ethchain/filter.go b/chain/filter.go
similarity index 99%
rename from ethchain/filter.go
rename to chain/filter.go
index a88d36467b..2aecb4f585 100644
--- a/ethchain/filter.go
+++ b/chain/filter.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/ethchain/filter_test.go b/chain/filter_test.go
similarity index 82%
rename from ethchain/filter_test.go
rename to chain/filter_test.go
index e569b37748..abfbf4b873 100644
--- a/ethchain/filter_test.go
+++ b/chain/filter_test.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import "testing"
 
diff --git a/ethchain/genesis.go b/chain/genesis.go
similarity index 98%
rename from ethchain/genesis.go
rename to chain/genesis.go
index d94e658b64..2f3b1919bb 100644
--- a/ethchain/genesis.go
+++ b/chain/genesis.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"math/big"
diff --git a/ethchain/helper_test.go b/chain/helper_test.go
similarity index 99%
rename from ethchain/helper_test.go
rename to chain/helper_test.go
index a863c75416..59d1c4ccad 100644
--- a/ethchain/helper_test.go
+++ b/chain/helper_test.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"container/list"
diff --git a/ethchain/state_manager.go b/chain/state_manager.go
similarity index 99%
rename from ethchain/state_manager.go
rename to chain/state_manager.go
index d48d96a516..f78eb925a2 100644
--- a/ethchain/state_manager.go
+++ b/chain/state_manager.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/ethchain/state_transition.go b/chain/state_transition.go
similarity index 99%
rename from ethchain/state_transition.go
rename to chain/state_transition.go
index ad7b320c42..4c62633c5f 100644
--- a/ethchain/state_transition.go
+++ b/chain/state_transition.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"fmt"
diff --git a/ethchain/transaction.go b/chain/transaction.go
similarity index 99%
rename from ethchain/transaction.go
rename to chain/transaction.go
index 331f44b555..ef95432afa 100644
--- a/ethchain/transaction.go
+++ b/chain/transaction.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/ethchain/transaction_pool.go b/chain/transaction_pool.go
similarity index 99%
rename from ethchain/transaction_pool.go
rename to chain/transaction_pool.go
index 7bd3e9ffd2..861ebdf003 100644
--- a/ethchain/transaction_pool.go
+++ b/chain/transaction_pool.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"bytes"
diff --git a/chain/transaction_test.go b/chain/transaction_test.go
new file mode 100644
index 0000000000..fef1d2010b
--- /dev/null
+++ b/chain/transaction_test.go
@@ -0,0 +1 @@
+package chain
diff --git a/ethchain/types.go b/chain/types.go
similarity index 99%
rename from ethchain/types.go
rename to chain/types.go
index d0e7fcfb04..9871ae07b8 100644
--- a/ethchain/types.go
+++ b/chain/types.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"fmt"
diff --git a/ethchain/vm_env.go b/chain/vm_env.go
similarity index 98%
rename from ethchain/vm_env.go
rename to chain/vm_env.go
index 1bb67dbd00..d42351713d 100644
--- a/ethchain/vm_env.go
+++ b/chain/vm_env.go
@@ -1,4 +1,4 @@
-package ethchain
+package chain
 
 import (
 	"math/big"
diff --git a/cmd/mist/bindings.go b/cmd/mist/bindings.go
index 0a6427938c..03d35a574b 100644
--- a/cmd/mist/bindings.go
+++ b/cmd/mist/bindings.go
@@ -22,7 +22,7 @@ import (
 	"os"
 	"strconv"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -110,7 +110,7 @@ func (self *Gui) DumpState(hash, path string) {
 	if len(hash) == 0 {
 		stateDump = self.eth.StateManager().CurrentState().Dump()
 	} else {
-		var block *ethchain.Block
+		var block *chain.Block
 		if hash[0] == '#' {
 			i, _ := strconv.Atoi(hash[1:])
 			block = self.eth.ChainManager().GetBlockByNumber(uint64(i))
diff --git a/cmd/mist/debugger.go b/cmd/mist/debugger.go
index ff3a30b3b4..d786a03953 100644
--- a/cmd/mist/debugger.go
+++ b/cmd/mist/debugger.go
@@ -24,7 +24,7 @@ import (
 	"strings"
 	"unicode"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/utils"
@@ -81,7 +81,7 @@ func (self *DebuggerWindow) SetData(data string) {
 func (self *DebuggerWindow) SetAsm(data []byte) {
 	self.win.Root().Call("clearAsm")
 
-	dis := ethchain.Disassemble(data)
+	dis := chain.Disassemble(data)
 	for _, str := range dis {
 		self.win.Root().Call("setAsm", str)
 	}
diff --git a/cmd/mist/ext_app.go b/cmd/mist/ext_app.go
index 7680106f04..cb014aec41 100644
--- a/cmd/mist/ext_app.go
+++ b/cmd/mist/ext_app.go
@@ -20,7 +20,7 @@ package main
 import (
 	"encoding/json"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/event"
@@ -36,7 +36,7 @@ type AppContainer interface {
 	Window() *qml.Window
 	Engine() *qml.Engine
 
-	NewBlock(*ethchain.Block)
+	NewBlock(*chain.Block)
 	NewWatcher(chan bool)
 	Messages(ethstate.Messages, string)
 	Post(string, int)
@@ -44,12 +44,12 @@ type AppContainer interface {
 
 type ExtApplication struct {
 	*ethpipe.JSPipe
-	eth ethchain.EthManager
+	eth chain.EthManager
 
 	events          event.Subscription
 	watcherQuitChan chan bool
 
-	filters map[string]*ethchain.Filter
+	filters map[string]*chain.Filter
 
 	container AppContainer
 	lib       *UiLib
@@ -60,7 +60,7 @@ func NewExtApplication(container AppContainer, lib *UiLib) *ExtApplication {
 		JSPipe:          ethpipe.NewJSPipe(lib.eth),
 		eth:             lib.eth,
 		watcherQuitChan: make(chan bool),
-		filters:         make(map[string]*ethchain.Filter),
+		filters:         make(map[string]*chain.Filter),
 		container:       container,
 		lib:             lib,
 	}
@@ -80,7 +80,7 @@ func (app *ExtApplication) run() {
 
 	// Subscribe to events
 	mux := app.lib.eth.EventMux()
-	app.events = mux.Subscribe(ethchain.NewBlockEvent{}, ethstate.Messages(nil))
+	app.events = mux.Subscribe(chain.NewBlockEvent{}, ethstate.Messages(nil))
 
 	// Call the main loop
 	go app.mainLoop()
@@ -106,7 +106,7 @@ func (app *ExtApplication) stop() {
 func (app *ExtApplication) mainLoop() {
 	for ev := range app.events.Chan() {
 		switch ev := ev.(type) {
-		case ethchain.NewBlockEvent:
+		case chain.NewBlockEvent:
 			app.container.NewBlock(ev.Block)
 
 		case ethstate.Messages:
diff --git a/cmd/mist/gui.go b/cmd/mist/gui.go
index e6da334752..c917ad06e9 100644
--- a/cmd/mist/gui.go
+++ b/cmd/mist/gui.go
@@ -31,7 +31,7 @@ import (
 	"time"
 
 	"github.com/ethereum/go-ethereum"
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethminer"
@@ -286,7 +286,7 @@ func (gui *Gui) loadAddressBook() {
 	}
 }
 
-func (gui *Gui) insertTransaction(window string, tx *ethchain.Transaction) {
+func (gui *Gui) insertTransaction(window string, tx *chain.Transaction) {
 	pipe := ethpipe.New(gui.eth)
 	nameReg := pipe.World().Config().Get("NameReg")
 	addr := gui.address()
@@ -336,7 +336,7 @@ func (gui *Gui) insertTransaction(window string, tx *ethchain.Transaction) {
 func (gui *Gui) readPreviousTransactions() {
 	it := gui.txDb.Db().NewIterator(nil, nil)
 	for it.Next() {
-		tx := ethchain.NewTransactionFromBytes(it.Value())
+		tx := chain.NewTransactionFromBytes(it.Value())
 
 		gui.insertTransaction("post", tx)
 
@@ -344,7 +344,7 @@ func (gui *Gui) readPreviousTransactions() {
 	it.Release()
 }
 
-func (gui *Gui) processBlock(block *ethchain.Block, initial bool) {
+func (gui *Gui) processBlock(block *chain.Block, initial bool) {
 	name := strings.Trim(gui.pipe.World().Config().Get("NameReg").Storage(block.Coinbase).Str(), "\x00")
 	b := ethpipe.NewJSBlock(block)
 	b.Name = name
@@ -407,9 +407,9 @@ func (gui *Gui) update() {
 	events := gui.eth.EventMux().Subscribe(
 		eth.ChainSyncEvent{},
 		eth.PeerListEvent{},
-		ethchain.NewBlockEvent{},
-		ethchain.TxPreEvent{},
-		ethchain.TxPostEvent{},
+		chain.NewBlockEvent{},
+		chain.TxPreEvent{},
+		chain.TxPostEvent{},
 		ethminer.Event{},
 	)
 
@@ -425,13 +425,13 @@ func (gui *Gui) update() {
 					return
 				}
 				switch ev := ev.(type) {
-				case ethchain.NewBlockEvent:
+				case chain.NewBlockEvent:
 					gui.processBlock(ev.Block, false)
 					if bytes.Compare(ev.Block.Coinbase, gui.address()) == 0 {
 						gui.setWalletValue(gui.eth.StateManager().CurrentState().GetAccount(gui.address()).Balance(), nil)
 					}
 
-				case ethchain.TxPreEvent:
+				case chain.TxPreEvent:
 					tx := ev.Tx
 					object := state.GetAccount(gui.address())
 
@@ -444,7 +444,7 @@ func (gui *Gui) update() {
 					gui.setWalletValue(object.Balance(), unconfirmedFunds)
 					gui.insertTransaction("pre", tx)
 
-				case ethchain.TxPostEvent:
+				case chain.TxPostEvent:
 					tx := ev.Tx
 					object := state.GetAccount(gui.address())
 
diff --git a/cmd/mist/html_container.go b/cmd/mist/html_container.go
index 2e28180274..96bae1a9af 100644
--- a/cmd/mist/html_container.go
+++ b/cmd/mist/html_container.go
@@ -27,7 +27,7 @@ import (
 	"path"
 	"path/filepath"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -138,7 +138,7 @@ func (app *HtmlApplication) Window() *qml.Window {
 	return app.win
 }
 
-func (app *HtmlApplication) NewBlock(block *ethchain.Block) {
+func (app *HtmlApplication) NewBlock(block *chain.Block) {
 	b := &ethpipe.JSBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())}
 	app.webView.Call("onNewBlockCb", b)
 }
diff --git a/cmd/mist/qml_container.go b/cmd/mist/qml_container.go
index 7538fb919c..3318786e79 100644
--- a/cmd/mist/qml_container.go
+++ b/cmd/mist/qml_container.go
@@ -21,7 +21,7 @@ import (
 	"fmt"
 	"runtime"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -65,7 +65,7 @@ func (app *QmlApplication) NewWatcher(quitChan chan bool) {
 }
 
 // Events
-func (app *QmlApplication) NewBlock(block *ethchain.Block) {
+func (app *QmlApplication) NewBlock(block *chain.Block) {
 	pblock := &ethpipe.JSBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Bytes2Hex(block.Hash())}
 	app.win.Call("onNewBlockCb", pblock)
 }
diff --git a/cmd/mist/ui_lib.go b/cmd/mist/ui_lib.go
index 32ca3c2c91..a9b560b6fc 100644
--- a/cmd/mist/ui_lib.go
+++ b/cmd/mist/ui_lib.go
@@ -25,7 +25,7 @@ import (
 	"strings"
 
 	"github.com/ethereum/go-ethereum"
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethcrypto"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethstate"
@@ -120,7 +120,7 @@ func (self *UiLib) PastPeers() *ethutil.List {
 }
 
 func (self *UiLib) ImportTx(rlpTx string) {
-	tx := ethchain.NewTransactionFromBytes(ethutil.Hex2Bytes(rlpTx))
+	tx := chain.NewTransactionFromBytes(ethutil.Hex2Bytes(rlpTx))
 	self.eth.TxPool().QueueTransaction(tx)
 }
 
@@ -221,8 +221,8 @@ func (self *UiLib) NewFilter(object map[string]interface{}) (id int) {
 }
 
 func (self *UiLib) NewFilterString(typ string) (id int) {
-	filter := ethchain.NewFilter(self.eth)
-	filter.BlockCallback = func(block *ethchain.Block) {
+	filter := chain.NewFilter(self.eth)
+	filter.BlockCallback = func(block *chain.Block) {
 		self.win.Root().Call("invokeFilterCallback", "{}", id)
 	}
 	id = self.eth.InstallFilter(filter)
diff --git a/ethchain/chain_manager_test.go b/ethchain/chain_manager_test.go
deleted file mode 100644
index 3603fd8a78..0000000000
--- a/ethchain/chain_manager_test.go
+++ /dev/null
@@ -1 +0,0 @@
-package ethchain
diff --git a/ethchain/transaction_test.go b/ethchain/transaction_test.go
deleted file mode 100644
index 3603fd8a78..0000000000
--- a/ethchain/transaction_test.go
+++ /dev/null
@@ -1 +0,0 @@
-package ethchain
diff --git a/ethereum.go b/ethereum.go
index a389c663d5..489e88b8a3 100644
--- a/ethereum.go
+++ b/ethereum.go
@@ -14,7 +14,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethcrypto"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethstate"
@@ -50,12 +50,12 @@ type Ethereum struct {
 	// DB interface
 	db ethutil.Database
 	// State manager for processing new blocks and managing the over all states
-	stateManager *ethchain.StateManager
+	stateManager *chain.StateManager
 	// The transaction pool. Transaction can be pushed on this pool
 	// for later including in the blocks
-	txPool *ethchain.TxPool
+	txPool *chain.TxPool
 	// The canonical chain
-	blockChain *ethchain.ChainManager
+	blockChain *chain.ChainManager
 	// The block pool
 	blockPool *BlockPool
 	// Eventer
@@ -94,7 +94,7 @@ type Ethereum struct {
 
 	filterMu sync.RWMutex
 	filterId int
-	filters  map[int]*ethchain.Filter
+	filters  map[int]*chain.Filter
 }
 
 func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager *ethcrypto.KeyManager, caps Caps, usePnp bool) (*Ethereum, error) {
@@ -124,13 +124,13 @@ func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager
 		keyManager:     keyManager,
 		clientIdentity: clientIdentity,
 		isUpToDate:     true,
-		filters:        make(map[int]*ethchain.Filter),
+		filters:        make(map[int]*chain.Filter),
 	}
 
 	ethereum.blockPool = NewBlockPool(ethereum)
-	ethereum.txPool = ethchain.NewTxPool(ethereum)
-	ethereum.blockChain = ethchain.NewChainManager(ethereum)
-	ethereum.stateManager = ethchain.NewStateManager(ethereum)
+	ethereum.txPool = chain.NewTxPool(ethereum)
+	ethereum.blockChain = chain.NewChainManager(ethereum)
+	ethereum.stateManager = chain.NewStateManager(ethereum)
 
 	// Start the tx pool
 	ethereum.txPool.Start()
@@ -146,15 +146,15 @@ func (s *Ethereum) ClientIdentity() ethwire.ClientIdentity {
 	return s.clientIdentity
 }
 
-func (s *Ethereum) ChainManager() *ethchain.ChainManager {
+func (s *Ethereum) ChainManager() *chain.ChainManager {
 	return s.blockChain
 }
 
-func (s *Ethereum) StateManager() *ethchain.StateManager {
+func (s *Ethereum) StateManager() *chain.StateManager {
 	return s.stateManager
 }
 
-func (s *Ethereum) TxPool() *ethchain.TxPool {
+func (s *Ethereum) TxPool() *chain.TxPool {
 	return s.txPool
 }
 func (s *Ethereum) BlockPool() *BlockPool {
@@ -590,7 +590,7 @@ out:
 // InstallFilter adds filter for blockchain events.
 // The filter's callbacks will run for matching blocks and messages.
 // The filter should not be modified after it has been installed.
-func (self *Ethereum) InstallFilter(filter *ethchain.Filter) (id int) {
+func (self *Ethereum) InstallFilter(filter *chain.Filter) (id int) {
 	self.filterMu.Lock()
 	id = self.filterId
 	self.filters[id] = filter
@@ -607,7 +607,7 @@ func (self *Ethereum) UninstallFilter(id int) {
 
 // GetFilter retrieves a filter installed using InstallFilter.
 // The filter may not be modified.
-func (self *Ethereum) GetFilter(id int) *ethchain.Filter {
+func (self *Ethereum) GetFilter(id int) *chain.Filter {
 	self.filterMu.RLock()
 	defer self.filterMu.RUnlock()
 	return self.filters[id]
@@ -615,10 +615,10 @@ func (self *Ethereum) GetFilter(id int) *ethchain.Filter {
 
 func (self *Ethereum) filterLoop() {
 	// Subscribe to events
-	events := self.eventMux.Subscribe(ethchain.NewBlockEvent{}, ethstate.Messages(nil))
+	events := self.eventMux.Subscribe(chain.NewBlockEvent{}, ethstate.Messages(nil))
 	for event := range events.Chan() {
 		switch event := event.(type) {
-		case ethchain.NewBlockEvent:
+		case chain.NewBlockEvent:
 			self.filterMu.RLock()
 			for _, filter := range self.filters {
 				if filter.BlockCallback != nil {
diff --git a/ethminer/miner.go b/ethminer/miner.go
index 571b92ce08..c2e973f321 100644
--- a/ethminer/miner.go
+++ b/ethminer/miner.go
@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"sort"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethwire"
 	"github.com/ethereum/go-ethereum/event"
@@ -13,12 +13,12 @@ import (
 var logger = ethlog.NewLogger("MINER")
 
 type Miner struct {
-	pow      ethchain.PoW
-	ethereum ethchain.EthManager
+	pow      chain.PoW
+	ethereum chain.EthManager
 	coinbase []byte
-	txs      ethchain.Transactions
-	uncles   []*ethchain.Block
-	block    *ethchain.Block
+	txs      chain.Transactions
+	uncles   []*chain.Block
+	block    *chain.Block
 
 	events      event.Subscription
 	powQuitChan chan struct{}
@@ -37,13 +37,13 @@ type Event struct {
 	Miner *Miner
 }
 
-func (self *Miner) GetPow() ethchain.PoW {
+func (self *Miner) GetPow() chain.PoW {
 	return self.pow
 }
 
-func NewDefaultMiner(coinbase []byte, ethereum ethchain.EthManager) *Miner {
+func NewDefaultMiner(coinbase []byte, ethereum chain.EthManager) *Miner {
 	miner := Miner{
-		pow:      &ethchain.EasyPow{},
+		pow:      &chain.EasyPow{},
 		ethereum: ethereum,
 		coinbase: coinbase,
 	}
@@ -64,7 +64,7 @@ func (miner *Miner) Start() {
 	miner.block = miner.ethereum.ChainManager().NewBlock(miner.coinbase)
 
 	mux := miner.ethereum.EventMux()
-	miner.events = mux.Subscribe(ethchain.NewBlockEvent{}, ethchain.TxPreEvent{})
+	miner.events = mux.Subscribe(chain.NewBlockEvent{}, chain.TxPreEvent{})
 
 	// Prepare inital block
 	//miner.ethereum.StateManager().Prepare(miner.block.State(), miner.block.State())
@@ -87,7 +87,7 @@ func (miner *Miner) listener() {
 		select {
 		case event := <-miner.events.Chan():
 			switch event := event.(type) {
-			case ethchain.NewBlockEvent:
+			case chain.NewBlockEvent:
 				miner.stopMining()
 
 				block := event.Block
@@ -97,7 +97,7 @@ func (miner *Miner) listener() {
 					//logger.Infoln("New top block found resetting state")
 
 					// Filter out which Transactions we have that were not in this block
-					var newtxs []*ethchain.Transaction
+					var newtxs []*chain.Transaction
 					for _, tx := range miner.txs {
 						found := false
 						for _, othertx := range block.Transactions() {
@@ -118,7 +118,7 @@ func (miner *Miner) listener() {
 				}
 				miner.startMining()
 
-			case ethchain.TxPreEvent:
+			case chain.TxPreEvent:
 				miner.stopMining()
 
 				found := false
@@ -171,7 +171,7 @@ func (self *Miner) mineNewBlock() {
 	}
 
 	// Sort the transactions by nonce in case of odd network propagation
-	sort.Sort(ethchain.TxByNonce{self.txs})
+	sort.Sort(chain.TxByNonce{self.txs})
 
 	// Accumulate all valid transactions and apply them to the new state
 	// Error may be ignored. It's not important during mining
@@ -208,7 +208,7 @@ func (self *Miner) mineNewBlock() {
 			logger.Infoln(self.block)
 			// Gather the new batch of transactions currently in the tx pool
 			self.txs = self.ethereum.TxPool().CurrentTransactions()
-			self.ethereum.EventMux().Post(ethchain.NewBlockEvent{self.block})
+			self.ethereum.EventMux().Post(chain.NewBlockEvent{self.block})
 		}
 
 		// Continue mining on the next block
diff --git a/ethpipe/js_pipe.go b/ethpipe/js_pipe.go
index 4b4369768d..ee4637d8fa 100644
--- a/ethpipe/js_pipe.go
+++ b/ethpipe/js_pipe.go
@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 	"sync/atomic"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethcrypto"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -15,7 +15,7 @@ type JSPipe struct {
 	*Pipe
 }
 
-func NewJSPipe(eth ethchain.EthManager) *JSPipe {
+func NewJSPipe(eth chain.EthManager) *JSPipe {
 	return &JSPipe{New(eth)}
 }
 
@@ -63,7 +63,7 @@ func (self *JSPipe) PeerCount() int {
 func (self *JSPipe) Peers() []JSPeer {
 	var peers []JSPeer
 	for peer := self.obj.Peers().Front(); peer != nil; peer = peer.Next() {
-		p := peer.Value.(ethchain.Peer)
+		p := peer.Value.(chain.Peer)
 		// we only want connected peers
 		if atomic.LoadInt32(p.Connected()) != 0 {
 			peers = append(peers, *NewJSPeer(p))
@@ -209,7 +209,7 @@ func (self *JSPipe) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr
 		gas      = ethutil.Big(gasStr)
 		gasPrice = ethutil.Big(gasPriceStr)
 		data     []byte
-		tx       *ethchain.Transaction
+		tx       *chain.Transaction
 	)
 
 	if ethutil.IsHex(codeStr) {
@@ -219,9 +219,9 @@ func (self *JSPipe) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr
 	}
 
 	if contractCreation {
-		tx = ethchain.NewContractCreationTx(value, gas, gasPrice, data)
+		tx = chain.NewContractCreationTx(value, gas, gasPrice, data)
 	} else {
-		tx = ethchain.NewTransactionMessage(hash, value, gas, gasPrice, data)
+		tx = chain.NewTransactionMessage(hash, value, gas, gasPrice, data)
 	}
 
 	acc := self.obj.StateManager().TransState().GetOrNewStateObject(keyPair.Address())
@@ -240,7 +240,7 @@ func (self *JSPipe) Transact(key, toStr, valueStr, gasStr, gasPriceStr, codeStr
 }
 
 func (self *JSPipe) PushTx(txStr string) (*JSReceipt, error) {
-	tx := ethchain.NewTransactionFromBytes(ethutil.Hex2Bytes(txStr))
+	tx := chain.NewTransactionFromBytes(ethutil.Hex2Bytes(txStr))
 	self.obj.TxPool().QueueTransaction(tx)
 	return NewJSReciept(tx.CreatesContract(), tx.CreationAddress(self.World().State()), tx.Hash(), tx.Sender()), nil
 }
diff --git a/ethpipe/js_types.go b/ethpipe/js_types.go
index 956a49ab77..94019f2757 100644
--- a/ethpipe/js_types.go
+++ b/ethpipe/js_types.go
@@ -5,7 +5,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethcrypto"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/ethutil"
@@ -14,7 +14,7 @@ import (
 // Block interface exposed to QML
 type JSBlock struct {
 	//Transactions string `json:"transactions"`
-	ref          *ethchain.Block
+	ref          *chain.Block
 	Size         string        `json:"size"`
 	Number       int           `json:"number"`
 	Hash         string        `json:"hash"`
@@ -29,7 +29,7 @@ type JSBlock struct {
 }
 
 // Creates a new QML Block from a chain block
-func NewJSBlock(block *ethchain.Block) *JSBlock {
+func NewJSBlock(block *chain.Block) *JSBlock {
 	if block == nil {
 		return &JSBlock{}
 	}
@@ -75,7 +75,7 @@ func (self *JSBlock) GetTransaction(hash string) *JSTransaction {
 }
 
 type JSTransaction struct {
-	ref *ethchain.Transaction
+	ref *chain.Transaction
 
 	Value           string `json:"value"`
 	Gas             string `json:"gas"`
@@ -90,7 +90,7 @@ type JSTransaction struct {
 	Confirmations   int    `json:"confirmations"`
 }
 
-func NewJSTx(tx *ethchain.Transaction, state *ethstate.State) *JSTransaction {
+func NewJSTx(tx *chain.Transaction, state *ethstate.State) *JSTransaction {
 	hash := ethutil.Bytes2Hex(tx.Hash())
 	receiver := ethutil.Bytes2Hex(tx.Recipient)
 	if receiver == "0000000000000000000000000000000000000000" {
@@ -101,7 +101,7 @@ func NewJSTx(tx *ethchain.Transaction, state *ethstate.State) *JSTransaction {
 
 	var data string
 	if tx.CreatesContract() {
-		data = strings.Join(ethchain.Disassemble(tx.Data), "\n")
+		data = strings.Join(chain.Disassemble(tx.Data), "\n")
 	} else {
 		data = ethutil.Bytes2Hex(tx.Data)
 	}
@@ -150,7 +150,7 @@ func NewPReciept(contractCreation bool, creationAddress, hash, address []byte) *
 // Peer interface exposed to QML
 
 type JSPeer struct {
-	ref          *ethchain.Peer
+	ref          *chain.Peer
 	Inbound      bool   `json:"isInbound"`
 	LastSend     int64  `json:"lastSend"`
 	LastPong     int64  `json:"lastPong"`
@@ -162,7 +162,7 @@ type JSPeer struct {
 	Caps         string `json:"caps"`
 }
 
-func NewJSPeer(peer ethchain.Peer) *JSPeer {
+func NewJSPeer(peer chain.Peer) *JSPeer {
 	if peer == nil {
 		return nil
 	}
diff --git a/ethpipe/pipe.go b/ethpipe/pipe.go
index 13085c887f..7dd6ae2626 100644
--- a/ethpipe/pipe.go
+++ b/ethpipe/pipe.go
@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethcrypto"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethstate"
@@ -19,15 +19,15 @@ type VmVars struct {
 }
 
 type Pipe struct {
-	obj          ethchain.EthManager
-	stateManager *ethchain.StateManager
-	blockChain   *ethchain.ChainManager
+	obj          chain.EthManager
+	stateManager *chain.StateManager
+	blockChain   *chain.ChainManager
 	world        *World
 
 	Vm VmVars
 }
 
-func New(obj ethchain.EthManager) *Pipe {
+func New(obj chain.EthManager) *Pipe {
 	pipe := &Pipe{
 		obj:          obj,
 		stateManager: obj.StateManager(),
@@ -68,7 +68,7 @@ func (self *Pipe) ExecuteObject(object *Object, data []byte, value, gas, price *
 	return ret, err
 }
 
-func (self *Pipe) Block(hash []byte) *ethchain.Block {
+func (self *Pipe) Block(hash []byte) *chain.Block {
 	return self.blockChain.GetBlock(hash)
 }
 
@@ -111,7 +111,7 @@ func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price
 		contractCreation = true
 	}
 
-	var tx *ethchain.Transaction
+	var tx *chain.Transaction
 	// Compile and assemble the given data
 	if contractCreation {
 		script, err := ethutil.Compile(string(data), false)
@@ -119,7 +119,7 @@ func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price
 			return nil, err
 		}
 
-		tx = ethchain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), script)
+		tx = chain.NewContractCreationTx(value.BigInt(), gas.BigInt(), price.BigInt(), script)
 	} else {
 		data := ethutil.StringToByteFunc(string(data), func(s string) (ret []byte) {
 			slice := strings.Split(s, "\n")
@@ -130,7 +130,7 @@ func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price
 			return
 		})
 
-		tx = ethchain.NewTransactionMessage(hash, value.BigInt(), gas.BigInt(), price.BigInt(), data)
+		tx = chain.NewTransactionMessage(hash, value.BigInt(), gas.BigInt(), price.BigInt(), data)
 	}
 
 	acc := self.stateManager.TransState().GetOrNewStateObject(key.Address())
@@ -151,7 +151,7 @@ func (self *Pipe) Transact(key *ethcrypto.KeyPair, rec []byte, value, gas, price
 	return tx.Hash(), nil
 }
 
-func (self *Pipe) PushTx(tx *ethchain.Transaction) ([]byte, error) {
+func (self *Pipe) PushTx(tx *chain.Transaction) ([]byte, error) {
 	self.obj.TxPool().QueueTransaction(tx)
 	if tx.Recipient == nil {
 		addr := tx.CreationAddress(self.World().State())
diff --git a/ethpipe/vm_env.go b/ethpipe/vm_env.go
index eb1190cf1f..baab67b283 100644
--- a/ethpipe/vm_env.go
+++ b/ethpipe/vm_env.go
@@ -3,19 +3,19 @@ package ethpipe
 import (
 	"math/big"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/vm"
 )
 
 type VMEnv struct {
 	state  *ethstate.State
-	block  *ethchain.Block
+	block  *chain.Block
 	value  *big.Int
 	sender []byte
 }
 
-func NewEnv(state *ethstate.State, block *ethchain.Block, value *big.Int, sender []byte) *VMEnv {
+func NewEnv(state *ethstate.State, block *chain.Block, value *big.Int, sender []byte) *VMEnv {
 	return &VMEnv{
 		state:  state,
 		block:  block,
diff --git a/javascript/javascript_runtime.go b/javascript/javascript_runtime.go
index 6c5a873386..36850021d3 100644
--- a/javascript/javascript_runtime.go
+++ b/javascript/javascript_runtime.go
@@ -8,7 +8,7 @@ import (
 	"path/filepath"
 
 	"github.com/ethereum/go-ethereum"
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethpipe"
 	"github.com/ethereum/go-ethereum/ethstate"
@@ -62,7 +62,7 @@ func NewJSRE(ethereum *eth.Ethereum) *JSRE {
 
 	// Subscribe to events
 	mux := ethereum.EventMux()
-	re.events = mux.Subscribe(ethchain.NewBlockEvent{})
+	re.events = mux.Subscribe(chain.NewBlockEvent{})
 
 	// We have to make sure that, whoever calls this, calls "Stop"
 	go re.mainLoop()
@@ -130,7 +130,7 @@ func (self *JSRE) dump(call otto.FunctionCall) otto.Value {
 	var state *ethstate.State
 
 	if len(call.ArgumentList) > 0 {
-		var block *ethchain.Block
+		var block *chain.Block
 		if call.Argument(0).IsNumber() {
 			num, _ := call.Argument(0).ToInteger()
 			block = self.ethereum.ChainManager().GetBlockByNumber(uint64(num))
diff --git a/peer.go b/peer.go
index 31bee19378..ab25e57091 100644
--- a/peer.go
+++ b/peer.go
@@ -12,7 +12,7 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethlog"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/ethwire"
@@ -155,7 +155,7 @@ type Peer struct {
 	pingTime      time.Duration
 	pingStartTime time.Time
 
-	lastRequestedBlock *ethchain.Block
+	lastRequestedBlock *chain.Block
 
 	protocolCaps *ethutil.Value
 }
@@ -378,7 +378,7 @@ func formatMessage(msg *ethwire.Msg) (ret string) {
 		case ethwire.MsgPeersTy:
 			ret += fmt.Sprintf("(%d entries)", msg.Data.Len())
 		case ethwire.MsgBlockTy:
-			b1, b2 := ethchain.NewBlockFromRlpValue(msg.Data.Get(0)), ethchain.NewBlockFromRlpValue(msg.Data.Get(msg.Data.Len()-1))
+			b1, b2 := chain.NewBlockFromRlpValue(msg.Data.Get(0)), ethchain.NewBlockFromRlpValue(msg.Data.Get(msg.Data.Len()-1))
 			ret += fmt.Sprintf("(%d entries) %x - %x", msg.Data.Len(), b1.Hash()[0:4], b2.Hash()[0:4])
 		case ethwire.MsgBlockHashesTy:
 			h1, h2 := msg.Data.Get(0).Bytes(), msg.Data.Get(msg.Data.Len()-1).Bytes()
@@ -429,7 +429,7 @@ func (p *Peer) HandleInbound() {
 				// in the TxPool where it will undergo validation and
 				// processing when a new block is found
 				for i := 0; i < msg.Data.Len(); i++ {
-					tx := ethchain.NewTransactionFromValue(msg.Data.Get(i))
+					tx := chain.NewTransactionFromValue(msg.Data.Get(i))
 					p.ethereum.TxPool().QueueTransaction(tx)
 				}
 			case ethwire.MsgGetPeersTy:
@@ -535,7 +535,7 @@ func (p *Peer) HandleInbound() {
 
 					it := msg.Data.NewIterator()
 					for it.Next() {
-						block := ethchain.NewBlockFromRlpValue(it.Value())
+						block := chain.NewBlockFromRlpValue(it.Value())
 						blockPool.Add(block, p)
 
 						p.lastBlockReceived = time.Now()
@@ -543,7 +543,7 @@ func (p *Peer) HandleInbound() {
 				case ethwire.MsgNewBlockTy:
 					var (
 						blockPool = p.ethereum.blockPool
-						block     = ethchain.NewBlockFromRlpValue(msg.Data.Get(0))
+						block     = chain.NewBlockFromRlpValue(msg.Data.Get(0))
 						td        = msg.Data.Get(1).BigInt()
 					)
 
diff --git a/ui/filter.go b/ui/filter.go
index ad29abbc55..84209861ea 100644
--- a/ui/filter.go
+++ b/ui/filter.go
@@ -1,12 +1,12 @@
 package ui
 
 import (
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethutil"
 )
 
-func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *ethchain.Filter {
-	filter := ethchain.NewFilter(eth)
+func NewFilterFromMap(object map[string]interface{}, eth chain.EthManager) *chain.Filter {
+	filter := chain.NewFilter(eth)
 
 	if object["earliest"] != nil {
 		val := ethutil.NewValue(object["earliest"])
@@ -46,7 +46,7 @@ func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *e
 }
 
 // Conversion methodn
-func mapToAccountChange(m map[string]interface{}) (d ethchain.AccountChange) {
+func mapToAccountChange(m map[string]interface{}) (d chain.AccountChange) {
 	if str, ok := m["id"].(string); ok {
 		d.Address = ethutil.Hex2Bytes(str)
 	}
@@ -60,9 +60,9 @@ func mapToAccountChange(m map[string]interface{}) (d ethchain.AccountChange) {
 
 // data can come in in the following formats:
 // ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
-func makeAltered(v interface{}) (d []ethchain.AccountChange) {
+func makeAltered(v interface{}) (d []chain.AccountChange) {
 	if str, ok := v.(string); ok {
-		d = append(d, ethchain.AccountChange{ethutil.Hex2Bytes(str), nil})
+		d = append(d, chain.AccountChange{ethutil.Hex2Bytes(str), nil})
 	} else if obj, ok := v.(map[string]interface{}); ok {
 		d = append(d, mapToAccountChange(obj))
 	} else if slice, ok := v.([]interface{}); ok {
diff --git a/ui/qt/filter.go b/ui/qt/filter.go
index 1fd99e78eb..96c3ab3a32 100644
--- a/ui/qt/filter.go
+++ b/ui/qt/filter.go
@@ -3,12 +3,12 @@ package qt
 import (
 	"fmt"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ui"
 	"gopkg.in/qml.v1"
 )
 
-func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *ethchain.Filter {
+func NewFilterFromMap(object map[string]interface{}, eth chain.EthManager) *chain.Filter {
 	filter := ui.NewFilterFromMap(object, eth)
 
 	if object["altered"] != nil {
@@ -18,7 +18,7 @@ func NewFilterFromMap(object map[string]interface{}, eth ethchain.EthManager) *e
 	return filter
 }
 
-func makeAltered(v interface{}) (d []ethchain.AccountChange) {
+func makeAltered(v interface{}) (d []chain.AccountChange) {
 	if qList, ok := v.(*qml.List); ok {
 		var s []interface{}
 		qList.Convert(&s)
diff --git a/utils/vm_env.go b/utils/vm_env.go
index 9d9bbf4ec7..0a7b589ee6 100644
--- a/utils/vm_env.go
+++ b/utils/vm_env.go
@@ -3,20 +3,20 @@ package utils
 import (
 	"math/big"
 
-	"github.com/ethereum/go-ethereum/ethchain"
+	"github.com/ethereum/go-ethereum/chain"
 	"github.com/ethereum/go-ethereum/ethstate"
 	"github.com/ethereum/go-ethereum/vm"
 )
 
 type VMEnv struct {
 	state *ethstate.State
-	block *ethchain.Block
+	block *chain.Block
 
 	transactor []byte
 	value      *big.Int
 }
 
-func NewEnv(state *ethstate.State, block *ethchain.Block, transactor []byte, value *big.Int) *VMEnv {
+func NewEnv(state *ethstate.State, block *chain.Block, transactor []byte, value *big.Int) *VMEnv {
 	return &VMEnv{
 		state:      state,
 		block:      block,