diff --git a/cmd/ethereum/main.go b/cmd/ethereum/main.go
index 3243cc7fb2..b816c678e7 100644
--- a/cmd/ethereum/main.go
+++ b/cmd/ethereum/main.go
@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/state"
 )
 
 const (
@@ -103,7 +104,8 @@ func main() {
 		}
 
 		// Leave the Println. This needs clean output for piping
-		fmt.Printf("%s\n", block.State().Dump())
+		statedb := state.New(block.Root(), ethereum.Db())
+		fmt.Printf("%s\n", statedb.Dump())
 
 		fmt.Println(block)
 
diff --git a/cmd/ethtest/main.go b/cmd/ethtest/main.go
index 05e99564c1..7d1c3de01d 100644
--- a/cmd/ethtest/main.go
+++ b/cmd/ethtest/main.go
@@ -29,6 +29,7 @@ import (
 	"os"
 	"strings"
 
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/tests/helper"
@@ -41,8 +42,8 @@ type Account struct {
 	Storage map[string]string
 }
 
-func StateObjectFromAccount(addr string, account Account) *state.StateObject {
-	obj := state.NewStateObject(ethutil.Hex2Bytes(addr))
+func StateObjectFromAccount(db ethutil.Database, addr string, account Account) *state.StateObject {
+	obj := state.NewStateObject(ethutil.Hex2Bytes(addr), db)
 	obj.SetBalance(ethutil.Big(account.Balance))
 
 	if ethutil.IsHex(account.Code) {
@@ -74,9 +75,10 @@ func RunVmTest(js string) (failed int) {
 	}
 
 	for name, test := range tests {
-		state := state.New(helper.NewTrie())
+		db, _ := ethdb.NewMemDatabase()
+		state := state.New(nil, db)
 		for addr, account := range test.Pre {
-			obj := StateObjectFromAccount(addr, account)
+			obj := StateObjectFromAccount(db, addr, account)
 			state.SetStateObject(obj)
 		}
 
diff --git a/cmd/evm/main.go b/cmd/evm/main.go
index f902c99e51..f819386fe0 100644
--- a/cmd/evm/main.go
+++ b/cmd/evm/main.go
@@ -35,7 +35,6 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/ptrie"
 	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/vm"
 )
@@ -63,7 +62,7 @@ func main() {
 	ethutil.ReadConfig("/tmp/evmtest", "/tmp/evm", "")
 
 	db, _ := ethdb.NewMemDatabase()
-	statedb := state.New(ptrie.New(nil, db))
+	statedb := state.New(nil, db)
 	sender := statedb.NewStateObject([]byte("sender"))
 	receiver := statedb.NewStateObject([]byte("receiver"))
 	//receiver.SetCode([]byte(*code))
diff --git a/cmd/mist/bindings.go b/cmd/mist/bindings.go
index e91a157dc3..f6d1c40da5 100644
--- a/cmd/mist/bindings.go
+++ b/cmd/mist/bindings.go
@@ -29,6 +29,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
+	"github.com/ethereum/go-ethereum/state"
 )
 
 type plugin struct {
@@ -121,7 +122,7 @@ func (self *Gui) DumpState(hash, path string) {
 			return
 		}
 
-		stateDump = block.State().Dump()
+		stateDump = state.New(block.Root(), self.eth.Db()).Dump()
 	}
 
 	file, err := os.OpenFile(path[7:], os.O_CREATE|os.O_RDWR, os.ModePerm)
diff --git a/cmd/mist/gui.go b/cmd/mist/gui.go
index 26239c4dbf..2e3f329b2a 100644
--- a/cmd/mist/gui.go
+++ b/cmd/mist/gui.go
@@ -117,18 +117,7 @@ func (gui *Gui) Start(assetPath string) {
 	context.SetVar("eth", gui.uiLib)
 	context.SetVar("shh", gui.whisper)
 
-	// Load the main QML interface
-	data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
-
-	var win *qml.Window
-	var err error
-	var addlog = false
-	if len(data) == 0 {
-		win, err = gui.showKeyImport(context)
-	} else {
-		win, err = gui.showWallet(context)
-		addlog = true
-	}
+	win, err := gui.showWallet(context)
 	if err != nil {
 		guilogger.Errorln("asset not found: you can set an alternative asset path on the command line using option 'asset_path'", err)
 
@@ -139,9 +128,7 @@ func (gui *Gui) Start(assetPath string) {
 	win.Show()
 
 	// only add the gui guilogger after window is shown otherwise slider wont be shown
-	if addlog {
-		logger.AddLogSystem(gui)
-	}
+	logger.AddLogSystem(gui)
 	win.Wait()
 
 	// need to silence gui guilogger after window closed otherwise logsystem hangs (but do not save loglevel)
@@ -275,7 +262,7 @@ func (gui *Gui) insertTransaction(window string, tx *types.Transaction) {
 	}
 
 	var (
-		ptx  = xeth.NewJSTx(tx, gui.xeth.World().State())
+		ptx  = xeth.NewJSTx(tx)
 		send = nameReg.Storage(tx.From())
 		rec  = nameReg.Storage(tx.To())
 		s, r string
diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go
index 1a85668b03..a57d3266f1 100644
--- a/cmd/utils/cmd.go
+++ b/cmd/utils/cmd.go
@@ -39,6 +39,7 @@ import (
 	"github.com/ethereum/go-ethereum/miner"
 	"github.com/ethereum/go-ethereum/rlp"
 	"github.com/ethereum/go-ethereum/rpc"
+	"github.com/ethereum/go-ethereum/state"
 	"github.com/ethereum/go-ethereum/xeth"
 )
 
@@ -259,7 +260,8 @@ func BlockDo(ethereum *eth.Ethereum, hash []byte) error {
 
 	parent := ethereum.ChainManager().GetBlock(block.ParentHash())
 
-	_, err := ethereum.BlockProcessor().TransitionState(parent.State(), parent, block)
+	statedb := state.New(parent.Root(), ethereum.Db())
+	_, err := ethereum.BlockProcessor().TransitionState(statedb, parent, block)
 	if err != nil {
 		return err
 	}
diff --git a/core/block_processor.go b/core/block_processor.go
index 233e5e4db3..87e8233627 100644
--- a/core/block_processor.go
+++ b/core/block_processor.go
@@ -36,6 +36,7 @@ type EthManager interface {
 }
 
 type BlockProcessor struct {
+	db ethutil.Database
 	// Mutex for locking the block processor. Blocks can only be handled one at a time
 	mutex sync.Mutex
 	// Canonical block chain
@@ -57,8 +58,9 @@ type BlockProcessor struct {
 	eventMux *event.TypeMux
 }
 
-func NewBlockProcessor(txpool *TxPool, chainManager *ChainManager, eventMux *event.TypeMux) *BlockProcessor {
+func NewBlockProcessor(db ethutil.Database, txpool *TxPool, chainManager *ChainManager, eventMux *event.TypeMux) *BlockProcessor {
 	sm := &BlockProcessor{
+		db:       db,
 		mem:      make(map[string]*big.Int),
 		Pow:      ezp.New(),
 		bc:       chainManager,
@@ -170,7 +172,8 @@ func (sm *BlockProcessor) Process(block *types.Block) (td *big.Int, msgs state.M
 func (sm *BlockProcessor) ProcessWithParent(block, parent *types.Block) (td *big.Int, messages state.Messages, err error) {
 	sm.lastAttemptedBlock = block
 
-	state := state.New(parent.Trie().Copy())
+	state := state.New(parent.Root(), sm.db)
+	//state := state.New(parent.Trie().Copy())
 
 	// Block validation
 	if err = sm.ValidateBlock(block, parent); err != nil {
@@ -352,7 +355,8 @@ func (sm *BlockProcessor) GetMessages(block *types.Block) (messages []*state.Mes
 
 	var (
 		parent = sm.bc.GetBlock(block.Header().ParentHash)
-		state  = state.New(parent.Trie().Copy())
+		//state  = state.New(parent.Trie().Copy())
+		state = state.New(parent.Root(), sm.db)
 	)
 
 	defer state.Reset()
diff --git a/core/chain_manager.go b/core/chain_manager.go
index e73ea63788..2d4001f0f9 100644
--- a/core/chain_manager.go
+++ b/core/chain_manager.go
@@ -55,6 +55,7 @@ func CalcGasLimit(parent, block *types.Block) *big.Int {
 
 type ChainManager struct {
 	//eth          EthManager
+	db           ethutil.Database
 	processor    types.BlockProcessor
 	eventMux     *event.TypeMux
 	genesisBlock *types.Block
@@ -96,13 +97,9 @@ func (self *ChainManager) CurrentBlock() *types.Block {
 	return self.currentBlock
 }
 
-func NewChainManager(mux *event.TypeMux) *ChainManager {
-	bc := &ChainManager{}
-	bc.genesisBlock = GenesisBlock()
-	bc.eventMux = mux
-
+func NewChainManager(db ethutil.Database, mux *event.TypeMux) *ChainManager {
+	bc := &ChainManager{db: db, genesisBlock: GenesisBlock(db), eventMux: mux}
 	bc.setLastBlock()
-
 	bc.transState = bc.State().Copy()
 
 	return bc
@@ -120,7 +117,7 @@ func (self *ChainManager) SetProcessor(proc types.BlockProcessor) {
 }
 
 func (self *ChainManager) State() *state.StateDB {
-	return state.New(self.CurrentBlock().Trie())
+	return state.New(self.CurrentBlock().Root(), self.db)
 }
 
 func (self *ChainManager) TransState() *state.StateDB {
@@ -128,7 +125,7 @@ func (self *ChainManager) TransState() *state.StateDB {
 }
 
 func (bc *ChainManager) setLastBlock() {
-	data, _ := ethutil.Config.Db.Get([]byte("LastBlock"))
+	data, _ := bc.db.Get([]byte("LastBlock"))
 	if len(data) != 0 {
 		var block types.Block
 		rlp.Decode(bytes.NewReader(data), &block)
@@ -137,7 +134,7 @@ func (bc *ChainManager) setLastBlock() {
 		bc.lastBlockNumber = block.Header().Number.Uint64()
 
 		// Set the last know difficulty (might be 0x0 as initial value, Genesis)
-		bc.td = ethutil.BigD(ethutil.Config.Db.LastKnownTD())
+		bc.td = ethutil.BigD(bc.db.LastKnownTD())
 	} else {
 		bc.Reset()
 	}
@@ -183,7 +180,7 @@ func (bc *ChainManager) Reset() {
 	defer bc.mu.Unlock()
 
 	for block := bc.currentBlock; block != nil; block = bc.GetBlock(block.Header().ParentHash) {
-		ethutil.Config.Db.Delete(block.Hash())
+		bc.db.Delete(block.Hash())
 	}
 
 	// Prepare the genesis block
@@ -210,7 +207,7 @@ func (self *ChainManager) Export() []byte {
 
 func (bc *ChainManager) insert(block *types.Block) {
 	encodedBlock := ethutil.Encode(block)
-	ethutil.Config.Db.Put([]byte("LastBlock"), encodedBlock)
+	bc.db.Put([]byte("LastBlock"), encodedBlock)
 	bc.currentBlock = block
 	bc.lastBlockHash = block.Hash()
 }
@@ -219,7 +216,7 @@ func (bc *ChainManager) write(block *types.Block) {
 	bc.writeBlockInfo(block)
 
 	encodedBlock := ethutil.Encode(block)
-	ethutil.Config.Db.Put(block.Hash(), encodedBlock)
+	bc.db.Put(block.Hash(), encodedBlock)
 }
 
 // Accessors
@@ -229,7 +226,7 @@ func (bc *ChainManager) Genesis() *types.Block {
 
 // Block fetching methods
 func (bc *ChainManager) HasBlock(hash []byte) bool {
-	data, _ := ethutil.Config.Db.Get(hash)
+	data, _ := bc.db.Get(hash)
 	return len(data) != 0
 }
 
@@ -254,7 +251,7 @@ func (self *ChainManager) GetBlockHashesFromHash(hash []byte, max uint64) (chain
 }
 
 func (self *ChainManager) GetBlock(hash []byte) *types.Block {
-	data, _ := ethutil.Config.Db.Get(hash)
+	data, _ := self.db.Get(hash)
 	if len(data) == 0 {
 		return nil
 	}
@@ -286,7 +283,7 @@ func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block {
 }
 
 func (bc *ChainManager) setTotalDifficulty(td *big.Int) {
-	ethutil.Config.Db.Put([]byte("LTD"), td.Bytes())
+	bc.db.Put([]byte("LTD"), td.Bytes())
 	bc.td = td
 }
 
@@ -348,7 +345,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) error {
 
 				self.setTotalDifficulty(td)
 				self.insert(block)
-				self.transState = state.New(cblock.Trie().Copy())
+				self.transState = state.New(cblock.Root(), self.db) //state.New(cblock.Trie().Copy())
 			}
 
 		}
diff --git a/core/chain_manager_test.go b/core/chain_manager_test.go
index 6c66961b0a..b384c49264 100644
--- a/core/chain_manager_test.go
+++ b/core/chain_manager_test.go
@@ -21,14 +21,6 @@ func init() {
 	ethutil.ReadConfig("/tmp/ethtest", "/tmp/ethtest", "ETH")
 }
 
-func reset() {
-	db, err := ethdb.NewMemDatabase()
-	if err != nil {
-		panic("Could not create mem-db, failing")
-	}
-	ethutil.Config.Db = db
-}
-
 func loadChain(fn string, t *testing.T) (types.Blocks, error) {
 	fh, err := os.OpenFile(path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "_data", fn), os.O_RDONLY, os.ModePerm)
 	if err != nil {
@@ -54,7 +46,7 @@ func insertChain(done chan bool, chainMan *ChainManager, chain types.Blocks, t *
 }
 
 func TestChainInsertions(t *testing.T) {
-	reset()
+	db, _ := ethdb.NewMemDatabase()
 
 	chain1, err := loadChain("valid1", t)
 	if err != nil {
@@ -69,9 +61,9 @@ func TestChainInsertions(t *testing.T) {
 	}
 
 	var eventMux event.TypeMux
-	chainMan := NewChainManager(&eventMux)
+	chainMan := NewChainManager(db, &eventMux)
 	txPool := NewTxPool(&eventMux)
-	blockMan := NewBlockProcessor(txPool, chainMan, &eventMux)
+	blockMan := NewBlockProcessor(db, txPool, chainMan, &eventMux)
 	chainMan.SetProcessor(blockMan)
 
 	const max = 2
@@ -94,7 +86,7 @@ func TestChainInsertions(t *testing.T) {
 }
 
 func TestChainMultipleInsertions(t *testing.T) {
-	reset()
+	db, _ := ethdb.NewMemDatabase()
 
 	const max = 4
 	chains := make([]types.Blocks, max)
@@ -113,9 +105,9 @@ func TestChainMultipleInsertions(t *testing.T) {
 		}
 	}
 	var eventMux event.TypeMux
-	chainMan := NewChainManager(&eventMux)
+	chainMan := NewChainManager(db, &eventMux)
 	txPool := NewTxPool(&eventMux)
-	blockMan := NewBlockProcessor(txPool, chainMan, &eventMux)
+	blockMan := NewBlockProcessor(db, txPool, chainMan, &eventMux)
 	chainMan.SetProcessor(blockMan)
 	done := make(chan bool, max)
 	for i, chain := range chains {
diff --git a/core/genesis.go b/core/genesis.go
index 10b40516ff..1590818a8f 100644
--- a/core/genesis.go
+++ b/core/genesis.go
@@ -19,7 +19,7 @@ var ZeroHash512 = make([]byte, 64)
 var EmptyShaList = crypto.Sha3(ethutil.Encode([]interface{}{}))
 var EmptyListRoot = crypto.Sha3(ethutil.Encode(""))
 
-func GenesisBlock() *types.Block {
+func GenesisBlock(db ethutil.Database) *types.Block {
 	genesis := types.NewBlock(ZeroHash256, ZeroHash160, nil, big.NewInt(131072), crypto.Sha3(big.NewInt(42).Bytes()), "")
 	genesis.Header().Number = ethutil.Big0
 	genesis.Header().GasLimit = big.NewInt(1000000)
@@ -30,7 +30,8 @@ func GenesisBlock() *types.Block {
 	genesis.SetTransactions(types.Transactions{})
 	genesis.SetReceipts(types.Receipts{})
 
-	statedb := state.New(genesis.Trie())
+	statedb := state.New(genesis.Root(), db)
+	//statedb := state.New(genesis.Trie())
 	for _, addr := range []string{
 		"51ba59315b3a95761d0863b05ccc7a7f54703d99",
 		"e4157b34ea9615cfbde6b4fda419828124b70c78",
diff --git a/core/helper_test.go b/core/helper_test.go
index b8bf254d76..7b41b86f15 100644
--- a/core/helper_test.go
+++ b/core/helper_test.go
@@ -77,7 +77,6 @@ func NewTestManager() *TestManager {
 		fmt.Println("Could not create mem-db, failing")
 		return nil
 	}
-	ethutil.Config.Db = db
 
 	testManager := &TestManager{}
 	testManager.eventMux = new(event.TypeMux)
diff --git a/core/transaction_pool_test.go b/core/transaction_pool_test.go
index 2e1debfbee..7f192fc4dd 100644
--- a/core/transaction_pool_test.go
+++ b/core/transaction_pool_test.go
@@ -6,16 +6,22 @@ import (
 
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/crypto"
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/state"
 )
 
 // State query interface
-type stateQuery struct{}
+type stateQuery struct{ db ethutil.Database }
+
+func SQ() stateQuery {
+	db, _ := ethdb.NewMemDatabase()
+	return stateQuery{db: db}
+}
 
 func (self stateQuery) GetAccount(addr []byte) *state.StateObject {
-	return state.NewStateObject(addr)
+	return state.NewStateObject(addr, self.db)
 }
 
 func transaction() *types.Transaction {
@@ -66,7 +72,7 @@ func TestRemoveInvalid(t *testing.T) {
 	pool, key := setup()
 	tx1 := transaction()
 	pool.addTx(tx1)
-	pool.RemoveInvalid(stateQuery{})
+	pool.RemoveInvalid(SQ())
 	if pool.Size() > 0 {
 		t.Error("expected pool size to be 0")
 	}
@@ -74,7 +80,7 @@ func TestRemoveInvalid(t *testing.T) {
 	tx1.SetNonce(1)
 	tx1.SignECDSA(key)
 	pool.addTx(tx1)
-	pool.RemoveInvalid(stateQuery{})
+	pool.RemoveInvalid(SQ())
 	if pool.Size() != 1 {
 		t.Error("expected pool size to be 1, is", pool.Size())
 	}
diff --git a/core/types/block.go b/core/types/block.go
index 7e19d003f5..be57e86a65 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -9,9 +9,7 @@ import (
 
 	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/ethutil"
-	"github.com/ethereum/go-ethereum/ptrie"
 	"github.com/ethereum/go-ethereum/rlp"
-	"github.com/ethereum/go-ethereum/state"
 )
 
 type Header struct {
@@ -168,16 +166,18 @@ func (self *Block) RlpDataForStorage() interface{} {
 }
 
 // Header accessors (add as you need them)
-func (self *Block) Number() *big.Int          { return self.header.Number }
-func (self *Block) NumberU64() uint64         { return self.header.Number.Uint64() }
-func (self *Block) Bloom() []byte             { return self.header.Bloom }
-func (self *Block) Coinbase() []byte          { return self.header.Coinbase }
-func (self *Block) Time() int64               { return int64(self.header.Time) }
-func (self *Block) GasLimit() *big.Int        { return self.header.GasLimit }
-func (self *Block) GasUsed() *big.Int         { return self.header.GasUsed }
-func (self *Block) Trie() *ptrie.Trie         { return ptrie.New(self.header.Root, ethutil.Config.Db) }
+func (self *Block) Number() *big.Int   { return self.header.Number }
+func (self *Block) NumberU64() uint64  { return self.header.Number.Uint64() }
+func (self *Block) Bloom() []byte      { return self.header.Bloom }
+func (self *Block) Coinbase() []byte   { return self.header.Coinbase }
+func (self *Block) Time() int64        { return int64(self.header.Time) }
+func (self *Block) GasLimit() *big.Int { return self.header.GasLimit }
+func (self *Block) GasUsed() *big.Int  { return self.header.GasUsed }
+
+//func (self *Block) Trie() *ptrie.Trie         { return ptrie.New(self.header.Root, ethutil.Config.Db) }
+//func (self *Block) State() *state.StateDB     { return state.New(self.Trie()) }
+func (self *Block) Root() []byte              { return self.header.Root }
 func (self *Block) SetRoot(root []byte)       { self.header.Root = root }
-func (self *Block) State() *state.StateDB     { return state.New(self.Trie()) }
 func (self *Block) Size() ethutil.StorageSize { return ethutil.StorageSize(len(ethutil.Encode(self))) }
 
 // Implement pow.Block
diff --git a/core/types/derive_sha.go b/core/types/derive_sha.go
index 0beb196709..0e286bd8b2 100644
--- a/core/types/derive_sha.go
+++ b/core/types/derive_sha.go
@@ -1,6 +1,7 @@
 package types
 
 import (
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/ptrie"
 )
@@ -11,7 +12,8 @@ type DerivableList interface {
 }
 
 func DeriveSha(list DerivableList) []byte {
-	trie := ptrie.New(nil, ethutil.Config.Db)
+	db, _ := ethdb.NewMemDatabase()
+	trie := ptrie.New(nil, db)
 	for i := 0; i < list.Len(); i++ {
 		trie.Update(ethutil.Encode(i), list.GetRlp(i))
 	}
diff --git a/eth/backend.go b/eth/backend.go
index a6ff527480..02d3dc942f 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -81,7 +81,7 @@ type Ethereum struct {
 func New(config *Config) (*Ethereum, error) {
 	// Boostrap database
 	logger := ethlogger.New(config.DataDir, config.LogFile, config.LogLevel)
-	db, err := ethdb.NewLDBDatabase("database")
+	db, err := ethdb.NewLDBDatabase("blockchain")
 	if err != nil {
 		return nil, err
 	}
@@ -110,7 +110,7 @@ func New(config *Config) (*Ethereum, error) {
 	clientId := p2p.NewSimpleClientIdentity(config.Name, config.Version, config.Identifier, keyManager.PublicKey())
 
 	saveProtocolVersion(db)
-	ethutil.Config.Db = db
+	//ethutil.Config.Db = db
 
 	eth := &Ethereum{
 		shutdownChan:   make(chan bool),
@@ -123,9 +123,9 @@ func New(config *Config) (*Ethereum, error) {
 		logger:         logger,
 	}
 
-	eth.chainManager = core.NewChainManager(eth.EventMux())
+	eth.chainManager = core.NewChainManager(db, eth.EventMux())
 	eth.txPool = core.NewTxPool(eth.EventMux())
-	eth.blockProcessor = core.NewBlockProcessor(eth.txPool, eth.chainManager, eth.EventMux())
+	eth.blockProcessor = core.NewBlockProcessor(db, eth.txPool, eth.chainManager, eth.EventMux())
 	eth.chainManager.SetProcessor(eth.blockProcessor)
 	eth.whisper = whisper.New()
 
diff --git a/ethutil/config.go b/ethutil/config.go
index ccc7714d01..fc8fb4e3f8 100644
--- a/ethutil/config.go
+++ b/ethutil/config.go
@@ -10,8 +10,6 @@ import (
 
 // Config struct
 type ConfigManager struct {
-	Db Database
-
 	ExecPath string
 	Debug    bool
 	Diff     bool
diff --git a/javascript/javascript_runtime.go b/javascript/javascript_runtime.go
index af1405049f..adc9022b74 100644
--- a/javascript/javascript_runtime.go
+++ b/javascript/javascript_runtime.go
@@ -129,10 +129,9 @@ func (self *JSRE) initStdFuncs() {
  */
 
 func (self *JSRE) dump(call otto.FunctionCall) otto.Value {
-	var state *state.StateDB
+	var block *types.Block
 
 	if len(call.ArgumentList) > 0 {
-		var block *types.Block
 		if call.Argument(0).IsNumber() {
 			num, _ := call.Argument(0).ToInteger()
 			block = self.ethereum.ChainManager().GetBlockByNumber(uint64(num))
@@ -149,12 +148,12 @@ func (self *JSRE) dump(call otto.FunctionCall) otto.Value {
 			return otto.UndefinedValue()
 		}
 
-		state = block.State()
 	} else {
-		state = self.ethereum.ChainManager().State()
+		block = self.ethereum.ChainManager().CurrentBlock()
 	}
 
-	v, _ := self.Vm.ToValue(state.Dump())
+	statedb := state.New(block.Root(), self.ethereum.Db())
+	v, _ := self.Vm.ToValue(statedb.Dump())
 
 	return v
 }
diff --git a/miner/miner.go b/miner/miner.go
index f80ae51c68..52dd5687d1 100644
--- a/miner/miner.go
+++ b/miner/miner.go
@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/pow"
 	"github.com/ethereum/go-ethereum/pow/ezp"
+	"github.com/ethereum/go-ethereum/state"
 
 	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
@@ -178,6 +179,7 @@ func (self *Miner) mine() {
 		blockProcessor = self.eth.BlockProcessor()
 		chainMan       = self.eth.ChainManager()
 		block          = chainMan.NewBlock(self.Coinbase)
+		state          = state.New(block.Root(), self.eth.Db())
 	)
 	block.Header().Extra = self.Extra
 
@@ -187,13 +189,11 @@ func (self *Miner) mine() {
 	}
 
 	parent := chainMan.GetBlock(block.ParentHash())
-	coinbase := block.State().GetOrNewStateObject(block.Coinbase())
+	coinbase := state.GetOrNewStateObject(block.Coinbase())
 	coinbase.SetGasPool(core.CalcGasLimit(parent, block))
 
 	transactions := self.finiliseTxs()
 
-	state := block.State()
-
 	// Accumulate all valid transactions and apply them to the new state
 	// Error may be ignored. It's not important during mining
 	receipts, txs, _, erroneous, err := blockProcessor.ApplyTransactions(coinbase, state, block, transactions, true)
diff --git a/pow/ar/block.go b/pow/ar/block.go
deleted file mode 100644
index 2124b53b4b..0000000000
--- a/pow/ar/block.go
+++ /dev/null
@@ -1,12 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/trie"
-)
-
-type Block interface {
-	Trie() *trie.Trie
-	Diff() *big.Int
-}
diff --git a/pow/ar/ops.go b/pow/ar/ops.go
deleted file mode 100644
index 3a099be087..0000000000
--- a/pow/ar/ops.go
+++ /dev/null
@@ -1,54 +0,0 @@
-package ar
-
-import "math/big"
-
-const lenops int64 = 9
-
-type OpsFunc func(a, b *big.Int) *big.Int
-
-var ops [lenops]OpsFunc
-
-func init() {
-	ops[0] = Add
-	ops[1] = Mul
-	ops[2] = Mod
-	ops[3] = Xor
-	ops[4] = And
-	ops[5] = Or
-	ops[6] = Sub1
-	ops[7] = XorSub
-	ops[8] = Rsh
-}
-
-func Add(x, y *big.Int) *big.Int {
-	return new(big.Int).Add(x, y)
-}
-func Mul(x, y *big.Int) *big.Int {
-	return new(big.Int).Mul(x, y)
-}
-func Mod(x, y *big.Int) *big.Int {
-	return new(big.Int).Mod(x, y)
-}
-func Xor(x, y *big.Int) *big.Int {
-	return new(big.Int).Xor(x, y)
-}
-func And(x, y *big.Int) *big.Int {
-	return new(big.Int).And(x, y)
-}
-func Or(x, y *big.Int) *big.Int {
-	return new(big.Int).Or(x, y)
-}
-func Sub1(x, y *big.Int) *big.Int {
-	a := big.NewInt(-1)
-	a.Sub(a, x)
-
-	return a
-}
-func XorSub(x, y *big.Int) *big.Int {
-	t := Sub1(x, nil)
-
-	return t.Xor(t, y)
-}
-func Rsh(x, y *big.Int) *big.Int {
-	return new(big.Int).Rsh(x, uint(y.Uint64()%64))
-}
diff --git a/pow/ar/pow.go b/pow/ar/pow.go
deleted file mode 100644
index 8991a674ba..0000000000
--- a/pow/ar/pow.go
+++ /dev/null
@@ -1,122 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-type Entry struct {
-	op   OpsFunc
-	i, j *big.Int
-}
-
-type Tape struct {
-	tape  []Entry
-	block Block
-}
-
-func NewTape(block Block) *Tape {
-	return &Tape{nil, block}
-}
-
-func (self *Tape) gen(w, h int64, gen NumberGenerator) {
-	self.tape = nil
-
-	for v := int64(0); v < h; v++ {
-		op := ops[gen.rand64(lenops).Int64()]
-		r := gen.rand64(100).Uint64()
-
-		var j *big.Int
-		if r < 20 && v > 20 {
-			j = self.tape[len(self.tape)-1].i
-		} else {
-			j = gen.rand64(w)
-		}
-
-		i := gen.rand64(w)
-		self.tape = append(self.tape, Entry{op, i, j})
-	}
-}
-
-func (self *Tape) runTape(w, h int64, gen NumberGenerator) *big.Int {
-	var mem []*big.Int
-	for i := int64(0); i < w; i++ {
-		mem = append(mem, gen.rand(ethutil.BigPow(2, 64)))
-	}
-
-	set := func(i, j int) Entry {
-		entry := self.tape[i*100+j]
-		mem[entry.i.Uint64()] = entry.op(entry.i, entry.j)
-
-		return entry
-	}
-
-	dir := true
-	for i := 0; i < int(h)/100; i++ {
-		var entry Entry
-		if dir {
-			for j := 0; j < 100; j++ {
-				entry = set(i, j)
-			}
-		} else {
-			for j := 99; i >= 0; j-- {
-				entry = set(i, j)
-			}
-		}
-
-		t := mem[entry.i.Uint64()]
-		if big.NewInt(2).Cmp(new(big.Int).Mod(t, big.NewInt(37))) < 0 {
-			dir = !dir
-		}
-	}
-
-	return Sha3(mem)
-}
-
-func (self *Tape) Verify(header, nonce []byte) bool {
-	n := ethutil.BigD(nonce)
-
-	var w int64 = 10000
-	var h int64 = 150000
-	gen := Rnd(Sha3([]interface{}{header, new(big.Int).Div(n, big.NewInt(1000))}))
-	self.gen(w, h, gen)
-
-	gen = Rnd(Sha3([]interface{}{header, new(big.Int).Mod(n, big.NewInt(1000))}))
-	hash := self.runTape(w, h, gen)
-
-	it := self.block.Trie().Iterator()
-	next := it.Next(string(new(big.Int).Mod(hash, ethutil.BigPow(2, 160)).Bytes()))
-
-	req := ethutil.BigPow(2, 256)
-	req.Div(req, self.block.Diff())
-	return Sha3([]interface{}{hash, next}).Cmp(req) < 0
-}
-
-func (self *Tape) Run(header []byte) []byte {
-	nonce := big.NewInt(0)
-	var w int64 = 10000
-	var h int64 = 150000
-
-	req := ethutil.BigPow(2, 256)
-	req.Div(req, self.block.Diff())
-
-	for {
-		if new(big.Int).Mod(nonce, b(1000)).Cmp(b(0)) == 0 {
-			gen := Rnd(Sha3([]interface{}{header, new(big.Int).Div(nonce, big.NewInt(1000))}))
-			self.gen(w, h, gen)
-		}
-
-		gen := Rnd(Sha3([]interface{}{header, new(big.Int).Mod(nonce, big.NewInt(1000))}))
-		hash := self.runTape(w, h, gen)
-
-		it := self.block.Trie().Iterator()
-		next := it.Next(string(new(big.Int).Mod(hash, ethutil.BigPow(2, 160)).Bytes()))
-
-		if Sha3([]interface{}{hash, next}).Cmp(req) < 0 {
-			return nonce.Bytes()
-		} else {
-			nonce.Add(nonce, ethutil.Big1)
-		}
-	}
-}
diff --git a/pow/ar/pow_test.go b/pow/ar/pow_test.go
deleted file mode 100644
index b1ebf92818..0000000000
--- a/pow/ar/pow_test.go
+++ /dev/null
@@ -1,47 +0,0 @@
-package ar
-
-import (
-	"fmt"
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/ethdb"
-	"github.com/ethereum/go-ethereum/trie"
-)
-
-type TestBlock struct {
-	trie *trie.Trie
-}
-
-func NewTestBlock() *TestBlock {
-	db, _ := ethdb.NewMemDatabase()
-	return &TestBlock{
-		trie: trie.New(db, ""),
-	}
-}
-
-func (self *TestBlock) Diff() *big.Int {
-	return b(10)
-}
-
-func (self *TestBlock) Trie() *trie.Trie {
-	return self.trie
-}
-
-func (self *TestBlock) Hash() []byte {
-	a := make([]byte, 32)
-	a[0] = 10
-	a[1] = 2
-	return a
-}
-
-func TestPow(t *testing.T) {
-	entry := make([]byte, 32)
-	entry[0] = 255
-
-	block := NewTestBlock()
-
-	pow := NewTape(block)
-	nonce := pow.Run(block.Hash())
-	fmt.Println("Found nonce", nonce)
-}
diff --git a/pow/ar/rnd.go b/pow/ar/rnd.go
deleted file mode 100644
index c62f4e0622..0000000000
--- a/pow/ar/rnd.go
+++ /dev/null
@@ -1,66 +0,0 @@
-package ar
-
-import (
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/crypto"
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-var b = big.NewInt
-
-type Node interface {
-	Big() *big.Int
-}
-
-type ByteNode []byte
-
-func (self ByteNode) Big() *big.Int {
-	return ethutil.BigD(ethutil.Encode([]byte(self)))
-}
-
-func Sha3(v interface{}) *big.Int {
-	if b, ok := v.(*big.Int); ok {
-		return ethutil.BigD(crypto.Sha3(b.Bytes()))
-	} else if b, ok := v.([]interface{}); ok {
-		return ethutil.BigD(crypto.Sha3(ethutil.Encode(b)))
-	} else if s, ok := v.([]*big.Int); ok {
-		v := make([]interface{}, len(s))
-		for i, b := range s {
-			v[i] = b
-		}
-
-		return ethutil.BigD(crypto.Sha3(ethutil.Encode(v)))
-	}
-
-	return nil
-}
-
-type NumberGenerator interface {
-	rand(r *big.Int) *big.Int
-	rand64(r int64) *big.Int
-}
-
-type rnd struct {
-	seed *big.Int
-}
-
-func Rnd(s *big.Int) rnd {
-	return rnd{s}
-}
-
-func (self rnd) rand(r *big.Int) *big.Int {
-	o := b(0).Mod(self.seed, r)
-
-	self.seed.Div(self.seed, r)
-
-	if self.seed.Cmp(ethutil.BigPow(2, 64)) < 0 {
-		self.seed = Sha3(self.seed)
-	}
-
-	return o
-}
-
-func (self rnd) rand64(r int64) *big.Int {
-	return self.rand(b(r))
-}
diff --git a/state/dump.go b/state/dump.go
index 40ecff50ce..ac646480c7 100644
--- a/state/dump.go
+++ b/state/dump.go
@@ -28,7 +28,7 @@ func (self *StateDB) Dump() []byte {
 
 	it := self.trie.Iterator()
 	for it.Next() {
-		stateObject := NewStateObjectFromBytes(it.Key, it.Value)
+		stateObject := NewStateObjectFromBytes(it.Key, it.Value, self.db)
 
 		account := Account{Balance: stateObject.balance.String(), Nonce: stateObject.Nonce, Root: ethutil.Bytes2Hex(stateObject.Root()), CodeHash: ethutil.Bytes2Hex(stateObject.codeHash)}
 		account.Storage = make(map[string]string)
diff --git a/state/state_object.go b/state/state_object.go
index 420ad97570..c1c78bee02 100644
--- a/state/state_object.go
+++ b/state/state_object.go
@@ -28,6 +28,7 @@ func (self Storage) Copy() Storage {
 }
 
 type StateObject struct {
+	db ethutil.Database
 	// Address of the object
 	address []byte
 	// Shared attributes
@@ -57,28 +58,20 @@ func (self *StateObject) Reset() {
 	self.State.Reset()
 }
 
-func NewStateObject(addr []byte) *StateObject {
+func NewStateObject(addr []byte, db ethutil.Database) *StateObject {
 	// This to ensure that it has 20 bytes (and not 0 bytes), thus left or right pad doesn't matter.
 	address := ethutil.Address(addr)
 
-	object := &StateObject{address: address, balance: new(big.Int), gasPool: new(big.Int)}
-	object.State = New(ptrie.New(nil, ethutil.Config.Db)) //New(trie.New(ethutil.Config.Db, ""))
+	object := &StateObject{db: db, address: address, balance: new(big.Int), gasPool: new(big.Int)}
+	object.State = New(nil, db) //New(trie.New(ethutil.Config.Db, ""))
 	object.storage = make(Storage)
 	object.gasPool = new(big.Int)
 
 	return object
 }
 
-func NewContract(address []byte, balance *big.Int, root []byte) *StateObject {
-	contract := NewStateObject(address)
-	contract.balance = balance
-	contract.State = New(ptrie.New(nil, ethutil.Config.Db)) //New(trie.New(ethutil.Config.Db, string(root)))
-
-	return contract
-}
-
-func NewStateObjectFromBytes(address, data []byte) *StateObject {
-	object := &StateObject{address: address}
+func NewStateObjectFromBytes(address, data []byte, db ethutil.Database) *StateObject {
+	object := &StateObject{address: address, db: db}
 	object.RlpDecode(data)
 
 	return object
@@ -242,7 +235,7 @@ func (self *StateObject) RefundGas(gas, price *big.Int) {
 }
 
 func (self *StateObject) Copy() *StateObject {
-	stateObject := NewStateObject(self.Address())
+	stateObject := NewStateObject(self.Address(), self.db)
 	stateObject.balance.Set(self.balance)
 	stateObject.codeHash = ethutil.CopyBytes(self.codeHash)
 	stateObject.Nonce = self.Nonce
@@ -310,13 +303,13 @@ func (c *StateObject) RlpDecode(data []byte) {
 
 	c.Nonce = decoder.Get(0).Uint()
 	c.balance = decoder.Get(1).BigInt()
-	c.State = New(ptrie.New(decoder.Get(2).Bytes(), ethutil.Config.Db)) //New(trie.New(ethutil.Config.Db, decoder.Get(2).Interface()))
+	c.State = New(decoder.Get(2).Bytes(), c.db) //New(trie.New(ethutil.Config.Db, decoder.Get(2).Interface()))
 	c.storage = make(map[string]*ethutil.Value)
 	c.gasPool = new(big.Int)
 
 	c.codeHash = decoder.Get(3).Bytes()
 
-	c.Code, _ = ethutil.Config.Db.Get(c.codeHash)
+	c.Code, _ = c.db.Get(c.codeHash)
 }
 
 // Storage change object. Used by the manifest for notifying changes to
diff --git a/state/state_test.go b/state/state_test.go
index 1f76eff0fb..7c54cedc0e 100644
--- a/state/state_test.go
+++ b/state/state_test.go
@@ -5,7 +5,6 @@ import (
 
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
-	"github.com/ethereum/go-ethereum/ptrie"
 )
 
 type StateSuite struct {
@@ -25,10 +24,9 @@ func (s *StateSuite) TestDump(c *checker.C) {
 }
 
 func (s *StateSuite) SetUpTest(c *checker.C) {
-	db, _ := ethdb.NewMemDatabase()
 	ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "")
-	ethutil.Config.Db = db
-	s.state = New(ptrie.New(nil, db))
+	db, _ := ethdb.NewMemDatabase()
+	s.state = New(nil, db)
 }
 
 func (s *StateSuite) TestSnapshot(c *checker.C) {
diff --git a/state/statedb.go b/state/statedb.go
index 6a11fc328f..de73147905 100644
--- a/state/statedb.go
+++ b/state/statedb.go
@@ -17,7 +17,7 @@ var statelogger = logger.NewLogger("STATE")
 // * Contracts
 // * Accounts
 type StateDB struct {
-	//Trie *trie.Trie
+	db   ethutil.Database
 	trie *ptrie.Trie
 
 	stateObjects map[string]*StateObject
@@ -30,8 +30,10 @@ type StateDB struct {
 }
 
 // Create a new state from a given trie
-func New(trie *ptrie.Trie) *StateDB {
-	return &StateDB{trie: trie, stateObjects: make(map[string]*StateObject), manifest: NewManifest(), refund: make(map[string]*big.Int)}
+//func New(trie *ptrie.Trie) *StateDB {
+func New(root []byte, db ethutil.Database) *StateDB {
+	trie := ptrie.New(root, db)
+	return &StateDB{db: db, trie: trie, stateObjects: make(map[string]*StateObject), manifest: NewManifest(), refund: make(map[string]*big.Int)}
 }
 
 func (self *StateDB) EmptyLogs() {
@@ -138,7 +140,7 @@ func (self *StateDB) UpdateStateObject(stateObject *StateObject) {
 	addr := stateObject.Address()
 
 	if len(stateObject.CodeHash()) > 0 {
-		ethutil.Config.Db.Put(stateObject.CodeHash(), stateObject.Code)
+		self.db.Put(stateObject.CodeHash(), stateObject.Code)
 	}
 
 	self.trie.Update(addr, stateObject.RlpEncode())
@@ -165,7 +167,7 @@ func (self *StateDB) GetStateObject(addr []byte) *StateObject {
 		return nil
 	}
 
-	stateObject = NewStateObjectFromBytes(addr, []byte(data))
+	stateObject = NewStateObjectFromBytes(addr, []byte(data), self.db)
 	self.SetStateObject(stateObject)
 
 	return stateObject
@@ -191,7 +193,7 @@ func (self *StateDB) NewStateObject(addr []byte) *StateObject {
 
 	statelogger.Debugf("(+) %x\n", addr)
 
-	stateObject := NewStateObject(addr)
+	stateObject := NewStateObject(addr, self.db)
 	self.stateObjects[string(addr)] = stateObject
 
 	return stateObject
@@ -212,7 +214,8 @@ func (s *StateDB) Cmp(other *StateDB) bool {
 
 func (self *StateDB) Copy() *StateDB {
 	if self.trie != nil {
-		state := New(self.trie.Copy())
+		state := New(nil, self.db)
+		state.trie = self.trie.Copy()
 		for k, stateObject := range self.stateObjects {
 			state.stateObjects[k] = stateObject.Copy()
 		}
@@ -305,7 +308,7 @@ func (self *StateDB) Update(gasUsed *big.Int) {
 
 	// FIXME trie delete is broken
 	if deleted {
-		valid, t2 := ptrie.ParanoiaCheck(self.trie, ethutil.Config.Db)
+		valid, t2 := ptrie.ParanoiaCheck(self.trie, self.db)
 		if !valid {
 			statelogger.Infof("Warn: PARANOIA: Different state root during copy %x vs %x\n", self.trie.Root(), t2.Root())
 
diff --git a/tests/helper/init.go b/tests/helper/init.go
index 578314e20a..df98b9e422 100644
--- a/tests/helper/init.go
+++ b/tests/helper/init.go
@@ -16,5 +16,4 @@ func init() {
 	logpkg.AddLogSystem(Logger)
 
 	ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "")
-	ethutil.Config.Db, _ = NewMemDatabase()
 }
diff --git a/tests/vm/gh_test.go b/tests/vm/gh_test.go
index 698b0aefc2..2aece215e8 100644
--- a/tests/vm/gh_test.go
+++ b/tests/vm/gh_test.go
@@ -7,6 +7,7 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/ethutil"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/state"
@@ -38,8 +39,8 @@ func (self Log) Topics() [][]byte {
 	return t
 }
 
-func StateObjectFromAccount(addr string, account Account) *state.StateObject {
-	obj := state.NewStateObject(ethutil.Hex2Bytes(addr))
+func StateObjectFromAccount(db ethutil.Database, addr string, account Account) *state.StateObject {
+	obj := state.NewStateObject(ethutil.Hex2Bytes(addr), db)
 	obj.SetBalance(ethutil.Big(account.Balance))
 
 	if ethutil.IsHex(account.Code) {
@@ -84,9 +85,10 @@ func RunVmTest(p string, t *testing.T) {
 				continue
 			}
 		*/
-		statedb := state.New(helper.NewTrie())
+		db, _ := ethdb.NewMemDatabase()
+		statedb := state.New(nil, db)
 		for addr, account := range test.Pre {
-			obj := StateObjectFromAccount(addr, account)
+			obj := StateObjectFromAccount(db, addr, account)
 			statedb.SetStateObject(obj)
 			for a, v := range account.Storage {
 				obj.SetState(helper.FromHex(a), ethutil.NewValue(helper.FromHex(v)))
diff --git a/trie/iterator.go b/trie/iterator.go
index 53d099a0c3..1114715a66 100644
--- a/trie/iterator.go
+++ b/trie/iterator.go
@@ -1,5 +1,6 @@
 package trie
 
+/*
 import (
 	"bytes"
 
@@ -141,3 +142,4 @@ func (self *Iterator) Next(key string) []byte {
 
 	return self.Key
 }
+*/
diff --git a/trie/trie.go b/trie/trie.go
index d89c397756..c9fd18e009 100644
--- a/trie/trie.go
+++ b/trie/trie.go
@@ -1,5 +1,6 @@
 package trie
 
+/*
 import (
 	"bytes"
 	"fmt"
@@ -174,11 +175,9 @@ func New(db ethutil.Database, Root interface{}) *Trie {
 func (self *Trie) setRoot(root interface{}) {
 	switch t := root.(type) {
 	case string:
-		/*
-			if t == "" {
-				root = crypto.Sha3(ethutil.Encode(""))
-			}
-		*/
+		//if t == "" {
+		//	root = crypto.Sha3(ethutil.Encode(""))
+		//}
 		self.Root = []byte(t)
 	case []byte:
 		self.Root = root
@@ -187,10 +186,6 @@ func (self *Trie) setRoot(root interface{}) {
 	}
 }
 
-/*
- * Public (query) interface functions
- */
-
 func (t *Trie) Update(key, value string) {
 	t.mut.Lock()
 	defer t.mut.Unlock()
@@ -629,3 +624,4 @@ func (it *TrieIterator) iterateNode(key []byte, currentNode *ethutil.Value, cb E
 		}
 	}
 }
+*/
diff --git a/trie/trie_test.go b/trie/trie_test.go
index 207d41f30d..3abe56040f 100644
--- a/trie/trie_test.go
+++ b/trie/trie_test.go
@@ -1,5 +1,6 @@
 package trie
 
+/*
 import (
 	"bytes"
 	"encoding/hex"
@@ -337,59 +338,6 @@ func (s *TrieSuite) TestItems(c *checker.C) {
 	c.Assert(s.trie.GetRoot(), checker.DeepEquals, ethutil.Hex2Bytes(exp))
 }
 
-/*
-func TestRndCase(t *testing.T) {
-	_, trie := NewTrie()
-
-	data := []struct{ k, v string }{
-		{"0000000000000000000000000000000000000000000000000000000000000001", "a07573657264617461000000000000000000000000000000000000000000000000"},
-		{"0000000000000000000000000000000000000000000000000000000000000003", "8453bb5b31"},
-		{"0000000000000000000000000000000000000000000000000000000000000004", "850218711a00"},
-		{"0000000000000000000000000000000000000000000000000000000000000005", "9462d7705bd0b3ecbc51a8026a25597cb28a650c79"},
-		{"0000000000000000000000000000000000000000000000000000000000000010", "947e70f9460402290a3e487dae01f610a1a8218fda"},
-		{"0000000000000000000000000000000000000000000000000000000000000111", "01"},
-		{"0000000000000000000000000000000000000000000000000000000000000112", "a053656e6174650000000000000000000000000000000000000000000000000000"},
-		{"0000000000000000000000000000000000000000000000000000000000000113", "a053656e6174650000000000000000000000000000000000000000000000000000"},
-		{"53656e6174650000000000000000000000000000000000000000000000000000", "94977e3f62f5e1ed7953697430303a3cfa2b5b736e"},
-	}
-	for _, e := range data {
-		trie.Update(string(ethutil.Hex2Bytes(e.k)), string(ethutil.Hex2Bytes(e.v)))
-	}
-
-	fmt.Printf("root after update %x\n", trie.Root)
-	trie.NewIterator().Each(func(k string, v *ethutil.Value) {
-		fmt.Printf("%x %x\n", k, v.Bytes())
-	})
-
-	data = []struct{ k, v string }{
-		{"0000000000000000000000000000000000000000000000000000000000000112", ""},
-		{"436974697a656e73000000000000000000000000000000000000000000000001", ""},
-		{"436f757274000000000000000000000000000000000000000000000000000002", ""},
-		{"53656e6174650000000000000000000000000000000000000000000000000000", ""},
-		{"436f757274000000000000000000000000000000000000000000000000000000", ""},
-		{"53656e6174650000000000000000000000000000000000000000000000000001", ""},
-		{"0000000000000000000000000000000000000000000000000000000000000113", ""},
-		{"436974697a656e73000000000000000000000000000000000000000000000000", ""},
-		{"436974697a656e73000000000000000000000000000000000000000000000002", ""},
-		{"436f757274000000000000000000000000000000000000000000000000000001", ""},
-		{"0000000000000000000000000000000000000000000000000000000000000111", ""},
-		{"53656e6174650000000000000000000000000000000000000000000000000002", ""},
-	}
-
-	for _, e := range data {
-		trie.Delete(string(ethutil.Hex2Bytes(e.k)))
-	}
-
-	fmt.Printf("root after delete %x\n", trie.Root)
-
-	trie.NewIterator().Each(func(k string, v *ethutil.Value) {
-		fmt.Printf("%x %x\n", k, v.Bytes())
-	})
-
-	fmt.Printf("%x\n", trie.Get(string(ethutil.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001"))))
-}
-*/
-
 func TestOtherSomething(t *testing.T) {
 	_, trie := NewTrie()
 
@@ -445,3 +393,4 @@ func BenchmarkUpdate(b *testing.B) {
 		trie.Update(fmt.Sprintf("aaaaaaaaaaaaaaa%d", i), "value")
 	}
 }
+*/
diff --git a/xeth/js_types.go b/xeth/js_types.go
index e7a1e95e9f..5fe5946b1c 100644
--- a/xeth/js_types.go
+++ b/xeth/js_types.go
@@ -39,7 +39,7 @@ func NewJSBlock(block *types.Block) *JSBlock {
 
 	ptxs := make([]*JSTransaction, len(block.Transactions()))
 	for i, tx := range block.Transactions() {
-		ptxs[i] = NewJSTx(tx, block.State())
+		ptxs[i] = NewJSTx(tx)
 	}
 	txlist := ethutil.NewList(ptxs)
 
@@ -76,7 +76,7 @@ func (self *JSBlock) GetTransaction(hash string) *JSTransaction {
 		return nil
 	}
 
-	return NewJSTx(tx, self.ref.State())
+	return NewJSTx(tx)
 }
 
 type JSTransaction struct {
@@ -95,7 +95,7 @@ type JSTransaction struct {
 	Confirmations   int    `json:"confirmations"`
 }
 
-func NewJSTx(tx *types.Transaction, state *state.StateDB) *JSTransaction {
+func NewJSTx(tx *types.Transaction) *JSTransaction {
 	hash := ethutil.Bytes2Hex(tx.Hash())
 	receiver := ethutil.Bytes2Hex(tx.To())
 	if receiver == "0000000000000000000000000000000000000000" {
diff --git a/xeth/world.go b/xeth/world.go
index 008a084234..25c2f3eb8b 100644
--- a/xeth/world.go
+++ b/xeth/world.go
@@ -36,7 +36,7 @@ func (self *World) SafeGet(addr []byte) *Object {
 func (self *World) safeGet(addr []byte) *state.StateObject {
 	object := self.State().GetStateObject(addr)
 	if object == nil {
-		object = state.NewStateObject(addr)
+		object = state.NewStateObject(addr, self.pipe.obj.Db())
 	}
 
 	return object
diff --git a/xeth/xeth.go b/xeth/xeth.go
index a10ccfc8b5..34d8ffd0ae 100644
--- a/xeth/xeth.go
+++ b/xeth/xeth.go
@@ -81,7 +81,7 @@ func (self *XEth) Execute(addr []byte, data []byte, value, gas, price *ethutil.V
 
 func (self *XEth) ExecuteObject(object *Object, data []byte, value, gas, price *ethutil.Value) ([]byte, error) {
 	var (
-		initiator = state.NewStateObject(self.obj.KeyManager().KeyPair().Address())
+		initiator = state.NewStateObject(self.obj.KeyManager().KeyPair().Address(), self.obj.Db())
 		block     = self.chainManager.CurrentBlock()
 	)