diff --git a/batchbuilder/batchbuilder.go b/batchbuilder/batchbuilder.go
index b92a0dd..cfa678d 100644
--- a/batchbuilder/batchbuilder.go
+++ b/batchbuilder/batchbuilder.go
@@ -52,7 +52,14 @@ func (bb *BatchBuilder) Reset(batchNum common.BatchNum, fromSynchronizer bool) e
 
 // BuildBatch takes the transactions and returns the common.ZKInputs of the next batch
 func (bb *BatchBuilder) BuildBatch(coordIdxs []common.Idx, configBatch *ConfigBatch, l1usertxs, l1coordinatortxs []common.L1Tx, pooll2txs []common.PoolL2Tx, tokenIDs []common.TokenID) (*common.ZKInputs, error) {
-	ptOut, err := bb.localStateDB.ProcessTxs(coordIdxs, l1usertxs, l1coordinatortxs, pooll2txs)
+	//nolint:gomnd
+	ptc := statedb.ProcessTxsConfig{ // TODO TMP
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  64,
+	}
+	ptOut, err := bb.localStateDB.ProcessTxs(ptc, coordIdxs, l1usertxs, l1coordinatortxs, pooll2txs)
 	if err != nil {
 		return nil, err
 	}
diff --git a/common/account.go b/common/account.go
index 4247f6b..4722489 100644
--- a/common/account.go
+++ b/common/account.go
@@ -125,11 +125,13 @@ type Account struct {
 
 func (a *Account) String() string {
 	buf := bytes.NewBufferString("")
+	fmt.Fprintf(buf, "Idx: %v, ", a.Idx)
 	fmt.Fprintf(buf, "PublicKey: %s..., ", a.PublicKey.String()[:10])
 	fmt.Fprintf(buf, "EthAddr: %s..., ", a.EthAddr.String()[:10])
 	fmt.Fprintf(buf, "TokenID: %v, ", a.TokenID)
 	fmt.Fprintf(buf, "Nonce: %d, ", a.Nonce)
 	fmt.Fprintf(buf, "Balance: %s, ", a.Balance.String())
+	fmt.Fprintf(buf, "BatchNum: %v, ", a.BatchNum)
 	return buf.String()
 }
 
diff --git a/common/l1tx.go b/common/l1tx.go
index a98ecdf..f357007 100644
--- a/common/l1tx.go
+++ b/common/l1tx.go
@@ -153,9 +153,11 @@ func (tx L1Tx) Tx() Tx {
 func (tx *L1Tx) BytesGeneric() ([]byte, error) {
 	var b [L1UserTxBytesLen]byte
 	copy(b[0:20], tx.FromEthAddr.Bytes())
-	pkCompL := tx.FromBJJ.Compress()
-	pkCompB := SwapEndianness(pkCompL[:])
-	copy(b[20:52], pkCompB[:])
+	if tx.FromBJJ != nil {
+		pkCompL := tx.FromBJJ.Compress()
+		pkCompB := SwapEndianness(pkCompL[:])
+		copy(b[20:52], pkCompB[:])
+	}
 	fromIdxBytes, err := tx.FromIdx.Bytes()
 	if err != nil {
 		return nil, err
diff --git a/common/l2tx.go b/common/l2tx.go
index d2a8f31..db5515d 100644
--- a/common/l2tx.go
+++ b/common/l2tx.go
@@ -104,7 +104,7 @@ func L2TxsToPoolL2Txs(txs []L2Tx) []PoolL2Tx {
 }
 
 // Bytes encodes a L2Tx into []byte
-func (tx *L2Tx) Bytes(nLevels int) ([]byte, error) {
+func (tx L2Tx) Bytes(nLevels uint32) ([]byte, error) {
 	idxLen := nLevels / 8 //nolint:gomnd
 
 	b := make([]byte, ((nLevels*2)+16+8)/8) //nolint:gomnd
diff --git a/common/utils.go b/common/utils.go
index 9dad220..5015cea 100644
--- a/common/utils.go
+++ b/common/utils.go
@@ -1,9 +1,11 @@
 package common
 
 import (
+	"encoding/hex"
 	"math/big"
 
 	ethCommon "github.com/ethereum/go-ethereum/common"
+	"github.com/iden3/go-iden3-crypto/babyjub"
 )
 
 // SwapEndianness swaps the order of the bytes in the slice.
@@ -19,3 +21,18 @@ func SwapEndianness(b []byte) []byte {
 func EthAddrToBigInt(a ethCommon.Address) *big.Int {
 	return new(big.Int).SetBytes(a.Bytes())
 }
+
+// BJJFromStringWithChecksum parses a hex string in Hermez format (which has
+// the Hermez checksum at the last byte, and is encoded in BigEndian) and
+// returns the corresponding *babyjub.PublicKey. This method is not part of the
+// spec, is used for importing javascript test vectors data.
+func BJJFromStringWithChecksum(s string) (*babyjub.PublicKey, error) {
+	b, err := hex.DecodeString(s)
+	if err != nil {
+		return nil, err
+	}
+	pkBytes := SwapEndianness(b)
+	var pkComp babyjub.PublicKeyComp
+	copy(pkComp[:], pkBytes[:])
+	return pkComp.Decompress()
+}
diff --git a/common/utils_test.go b/common/utils_test.go
new file mode 100644
index 0000000..fe62408
--- /dev/null
+++ b/common/utils_test.go
@@ -0,0 +1,21 @@
+package common
+
+import (
+	"encoding/hex"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestBJJFromStringWithChecksum(t *testing.T) {
+	s := "21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7"
+	pk, err := BJJFromStringWithChecksum(s)
+	assert.Nil(t, err)
+	sBytes, err := hex.DecodeString(s)
+	assert.Nil(t, err)
+	assert.Equal(t, hex.EncodeToString(SwapEndianness(sBytes)), pk.Compress().String())
+
+	// expected values computed with js implementation
+	assert.Equal(t, "2492816973395423007340226948038371729989170225696553239457870892535792679622", pk.X.String())
+	assert.Equal(t, "15238403086306505038849621710779816852318505119327426213168494964113886299863", pk.Y.String())
+}
diff --git a/common/zk.go b/common/zk.go
index 17c6afb..7979950 100644
--- a/common/zk.go
+++ b/common/zk.go
@@ -3,10 +3,15 @@
 package common
 
 import (
+	"crypto/sha256"
+	"encoding/binary"
 	"encoding/json"
+	"fmt"
 	"math/big"
 
 	"github.com/hermeznetwork/hermez-node/log"
+	cryptoConstants "github.com/iden3/go-iden3-crypto/constants"
+	"github.com/iden3/go-merkletree"
 	"github.com/mitchellh/mapstructure"
 )
 
@@ -21,6 +26,8 @@ type ZKMetadata struct {
 	MaxLevels uint32
 	// absolute maximum of L1 transaction allowed
 	MaxL1Tx uint32
+	// total txs allowed
+	MaxTx uint32
 	// Maximum number of Idxs where Fees can be send in a batch (currently
 	// is constant for all circuits: 64)
 	MaxFeeIdxs uint32
@@ -28,6 +35,10 @@ type ZKMetadata struct {
 	L1TxsData [][]byte
 	L2TxsData [][]byte
 	ChainID   uint16
+
+	NewLastIdxRaw   Idx
+	NewStateRootRaw *merkletree.Hash
+	NewExitRootRaw  *merkletree.Hash
 }
 
 // ZKInputs represents the inputs that will be used to generate the zkSNARK proof
@@ -250,11 +261,14 @@ func (z ZKInputs) MarshalJSON() ([]byte, error) {
 }
 
 // NewZKInputs returns a pointer to an initialized struct of ZKInputs
-func NewZKInputs(nTx, maxFeeIdxs, nLevels int) *ZKInputs {
+func NewZKInputs(nTx, maxL1Tx, maxTx, maxFeeIdxs, nLevels uint32) *ZKInputs {
 	zki := &ZKInputs{}
-	zki.Metadata.NTx = uint32(nTx)
-	zki.Metadata.MaxFeeIdxs = uint32(maxFeeIdxs)
-	zki.Metadata.NLevels = uint32(nLevels)
+	zki.Metadata.NTx = nTx
+	zki.Metadata.MaxFeeIdxs = maxFeeIdxs
+	zki.Metadata.NLevels = nLevels
+	zki.Metadata.MaxLevels = uint32(48) //nolint:gomnd
+	zki.Metadata.MaxL1Tx = maxL1Tx
+	zki.Metadata.MaxTx = maxTx
 
 	// General
 	zki.OldLastIdx = big.NewInt(0)
@@ -359,10 +373,113 @@ func NewZKInputs(nTx, maxFeeIdxs, nLevels int) *ZKInputs {
 // set all the elements, and if a transaction does not use a parameter, can be
 // leaved as it is in the ZKInputs, as will be 0, so later when using the
 // ZKInputs to generate the zkSnark proof there is no 'nil'/'null' values.
-func newSlice(n int) []*big.Int {
+func newSlice(n uint32) []*big.Int {
 	s := make([]*big.Int, n)
 	for i := 0; i < len(s); i++ {
 		s[i] = big.NewInt(0)
 	}
 	return s
 }
+
+// HashGlobalData returns the HashGlobalData
+func (z ZKInputs) HashGlobalData() (*big.Int, error) {
+	b, err := z.ToHashGlobalData()
+	if err != nil {
+		return nil, err
+	}
+
+	h := sha256.New()
+	_, err = h.Write(b)
+	if err != nil {
+		return nil, err
+	}
+
+	r := new(big.Int).SetBytes(h.Sum(nil))
+	v := r.Mod(r, cryptoConstants.Q)
+
+	return v, nil
+}
+
+// ToHashGlobalData returns the data to be hashed in the method HashGlobalData
+func (z ZKInputs) ToHashGlobalData() ([]byte, error) {
+	var b []byte
+	bytesMaxLevels := int(z.Metadata.MaxLevels / 8) //nolint:gomnd
+
+	// [MAX_NLEVELS bits] oldLastIdx
+	oldLastIdx := make([]byte, bytesMaxLevels)
+	copy(oldLastIdx, z.OldLastIdx.Bytes())
+	b = append(b, SwapEndianness(oldLastIdx)...)
+
+	// [MAX_NLEVELS bits] newLastIdx
+	newLastIdx := make([]byte, bytesMaxLevels)
+	newLastIdxBytes, err := z.Metadata.NewLastIdxRaw.Bytes()
+	if err != nil {
+		return nil, err
+	}
+	copy(newLastIdx, newLastIdxBytes[len(newLastIdxBytes)-bytesMaxLevels:])
+	b = append(b, newLastIdx...)
+
+	// [256 bits] oldStRoot
+	oldStateRoot := make([]byte, 32)
+	copy(oldStateRoot, z.OldStateRoot.Bytes())
+	b = append(b, oldStateRoot...)
+
+	// [256 bits] newStateRoot
+	newStateRoot := make([]byte, 32)
+	copy(newStateRoot, z.Metadata.NewStateRootRaw.Bytes())
+	b = append(b, newStateRoot...)
+
+	// [256 bits] newExitRoot
+	newExitRoot := make([]byte, 32)
+	copy(newExitRoot, z.Metadata.NewExitRootRaw.Bytes())
+	b = append(b, newExitRoot...)
+
+	// [MAX_L1_TX * (2 * MAX_NLEVELS + 480) bits] L1TxsData
+	l1TxDataLen := (2*z.Metadata.MaxLevels + 480)
+	l1TxsDataLen := (z.Metadata.MaxL1Tx * l1TxDataLen)
+	l1TxsData := make([]byte, l1TxsDataLen/8) //nolint:gomnd
+	for i := 0; i < len(z.Metadata.L1TxsData); i++ {
+		dataLen := int(l1TxDataLen) / 8 //nolint:gomnd
+		pos0 := i * dataLen
+		pos1 := i*dataLen + dataLen
+		copy(l1TxsData[pos0:pos1], z.Metadata.L1TxsData[i])
+	}
+	b = append(b, l1TxsData...)
+
+	// [MAX_TX*(2*NLevels + 24) bits] L2TxsData
+	var l2TxsData []byte
+	l2TxDataLen := 2*z.Metadata.NLevels + 24 //nolint:gomnd
+	l2TxsDataLen := (z.Metadata.MaxTx * l2TxDataLen)
+	expectedL2TxsDataLen := l2TxsDataLen / 8 //nolint:gomnd
+	for i := 0; i < len(z.Metadata.L2TxsData); i++ {
+		l2TxsData = append(l2TxsData, z.Metadata.L2TxsData[i]...)
+	}
+	if len(l2TxsData) > int(expectedL2TxsDataLen) {
+		return nil, fmt.Errorf("len(l2TxsData): %d, expected: %d", len(l2TxsData), expectedL2TxsDataLen)
+	}
+
+	l2TxsPadding := make([]byte, (int(z.Metadata.MaxTx)-len(z.Metadata.L2TxsData))*int(l2TxDataLen)/8) //nolint:gomnd
+	b = append(b, l2TxsPadding...)
+	b = append(b, l2TxsData...)
+
+	// [NLevels * MAX_TOKENS_FEE bits] feeTxsData
+	for i := 0; i < len(z.FeeIdxs); i++ {
+		var r []byte
+
+		padding := make([]byte, bytesMaxLevels/4) //nolint:gomnd
+		r = append(r, padding...)
+
+		feeIdx := make([]byte, bytesMaxLevels/2) //nolint:gomnd
+		feeIdxBytes := z.FeeIdxs[i].Bytes()
+		copy(feeIdx[len(feeIdx)-len(feeIdxBytes):], feeIdxBytes[:])
+		r = append(r, feeIdx...)
+		b = append(b, r...)
+	}
+
+	// [16 bits] chainID
+	var chainID [2]byte
+	binary.BigEndian.PutUint16(chainID[:], z.Metadata.ChainID)
+	b = append(b, chainID[:]...)
+
+	return b, nil
+}
diff --git a/common/zk_test.go b/common/zk_test.go
index 8767838..283dfbb 100644
--- a/common/zk_test.go
+++ b/common/zk_test.go
@@ -8,7 +8,7 @@ import (
 )
 
 func TestZKInputs(t *testing.T) {
-	zki := NewZKInputs(100, 24, 32)
+	zki := NewZKInputs(100, 16, 512, 24, 32)
 	_, err := json.Marshal(zki)
 	require.Nil(t, err)
 	// fmt.Println(string(s))
diff --git a/db/statedb/txprocessors.go b/db/statedb/txprocessors.go
index fbaf1c5..3e323fe 100644
--- a/db/statedb/txprocessors.go
+++ b/db/statedb/txprocessors.go
@@ -40,6 +40,14 @@ type ProcessTxOutput struct {
 	CollectedFees      map[common.TokenID]*big.Int
 }
 
+// ProcessTxsConfig contains the config for ProcessTxs
+type ProcessTxsConfig struct {
+	NLevels  uint32
+	MaxFeeTx uint32
+	MaxTx    uint32
+	MaxL1Tx  uint32
+}
+
 // ProcessTxs process the given L1Txs & L2Txs applying the needed updates to
 // the StateDB depending on the transaction Type.  If StateDB
 // type==TypeBatchBuilder, returns the common.ZKInputs to generate the
@@ -49,7 +57,7 @@ type ProcessTxOutput struct {
 // the HistoryDB, and adds Nonce & TokenID to the L2Txs.
 // And if TypeSynchronizer returns an array of common.Account with all the
 // created accounts.
-func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs []common.L1Tx, l2txs []common.PoolL2Tx) (ptOut *ProcessTxOutput, err error) {
+func (s *StateDB) ProcessTxs(ptc ProcessTxsConfig, coordIdxs []common.Idx, l1usertxs, l1coordinatortxs []common.L1Tx, l2txs []common.PoolL2Tx) (ptOut *ProcessTxOutput, err error) {
 	defer func() {
 		if err == nil {
 			err = s.MakeCheckpoint()
@@ -80,9 +88,8 @@ func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs
 	exits := make([]processedExit, nTx)
 
 	if s.typ == TypeBatchBuilder {
-		maxFeeTx := 64 // TODO this value will be a parameter
-		s.zki = common.NewZKInputs(nTx, maxFeeTx, s.mt.MaxLevels())
-		s.zki.OldLastIdx = (s.idx - 1).BigInt()
+		s.zki = common.NewZKInputs(uint32(nTx), ptc.MaxL1Tx, ptc.MaxTx, ptc.MaxFeeTx, ptc.NLevels)
+		s.zki.OldLastIdx = s.idx.BigInt()
 		s.zki.OldStateRoot = s.mt.Root().BigInt()
 	}
 
@@ -197,6 +204,13 @@ func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs
 			}
 			s.i++
 		}
+		if s.zki != nil {
+			l2TxData, err := l2txs[i].L2Tx().Bytes(s.zki.Metadata.NLevels)
+			if err != nil {
+				return nil, err
+			}
+			s.zki.Metadata.L2TxsData = append(s.zki.Metadata.L2TxsData, l2TxData)
+		}
 	}
 
 	// distribute the AccumulatedFees from the processed L2Txs into the
@@ -302,6 +316,8 @@ func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs
 		return nil, err
 	}
 	s.zki.FeePlanTokens = tokenIDs
+	s.zki.Metadata.NewStateRootRaw = s.mt.Root()
+	s.zki.Metadata.NewExitRootRaw = exitTree.Root()
 
 	// s.zki.ISInitStateRootFee = s.mt.Root().BigInt()
 
@@ -569,6 +585,8 @@ func (s *StateDB) applyCreateAccount(tx *common.L1Tx) error {
 		}
 		s.zki.OldKey1[s.i] = p.OldKey.BigInt()
 		s.zki.OldValue1[s.i] = p.OldValue.BigInt()
+
+		s.zki.Metadata.NewLastIdxRaw = s.idx + 1
 	}
 
 	s.idx = s.idx + 1
@@ -657,12 +675,6 @@ func (s *StateDB) applyTransfer(coordIdxsMap map[common.TokenID]common.Idx, coll
 		log.Error(err)
 		return err
 	}
-	accReceiver, err := s.GetAccount(auxToIdx)
-	if err != nil {
-		log.Error(err)
-		return err
-	}
-
 	if !tx.IsL1 {
 		// increment nonce
 		accSender.Nonce++
@@ -692,6 +704,20 @@ func (s *StateDB) applyTransfer(coordIdxsMap map[common.TokenID]common.Idx, coll
 		accSender.Balance = new(big.Int).Sub(accSender.Balance, tx.Amount)
 	}
 
+	var accReceiver *common.Account
+	if tx.FromIdx == auxToIdx {
+		// if Sender is the Receiver, reuse 'accSender' pointer,
+		// because in the DB the account for 'auxToIdx' won't be
+		// updated yet
+		accReceiver = accSender
+	} else {
+		accReceiver, err = s.GetAccount(auxToIdx)
+		if err != nil {
+			log.Error(err)
+			return err
+		}
+	}
+
 	// add amount-feeAmount to the receiver
 	accReceiver.Balance = new(big.Int).Add(accReceiver.Balance, tx.Amount)
 
@@ -772,6 +798,8 @@ func (s *StateDB) applyCreateAccountDepositTransfer(tx *common.L1Tx) error {
 		}
 		s.zki.OldKey1[s.i] = p.OldKey.BigInt()
 		s.zki.OldValue1[s.i] = p.OldValue.BigInt()
+
+		s.zki.Metadata.NewLastIdxRaw = s.idx + 1
 	}
 
 	// update receiver account in localStateDB
diff --git a/db/statedb/txprocessors_test.go b/db/statedb/txprocessors_test.go
index d449754..ec9d788 100644
--- a/db/statedb/txprocessors_test.go
+++ b/db/statedb/txprocessors_test.go
@@ -1,12 +1,15 @@
 package statedb
 
 import (
+	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
+	"math/big"
 	"os"
 	"testing"
 
+	ethCommon "github.com/ethereum/go-ethereum/common"
 	"github.com/hermeznetwork/hermez-node/common"
 	"github.com/hermeznetwork/hermez-node/log"
 	"github.com/hermeznetwork/hermez-node/test/til"
@@ -36,28 +39,34 @@ func TestProcessTxsBalances(t *testing.T) {
 
 	// Coordinator Idx where to send the fees
 	coordIdxs := []common.Idx{256, 257}
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  16,
+	}
 
 	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
-	_, err = sdb.ProcessTxs(nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
+	_, err = sdb.ProcessTxs(ptc, nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 
 	log.Debug("block:0 batch:1")
 	l1UserTxs := []common.L1Tx{}
 	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[1].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
 	log.Debug("block:0 batch:2")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[2].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[2].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "A", 0, "500")
 
 	log.Debug("block:0 batch:3")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[3].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[3].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[3].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[3].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "A", 0, "500")
 	checkBalance(t, tc, sdb, "A", 1, "500")
@@ -65,7 +74,7 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:0 batch:4")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[4].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[4].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[4].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[4].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "A", 0, "500")
 	checkBalance(t, tc, sdb, "A", 1, "500")
@@ -73,7 +82,7 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:0 batch:5")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[5].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[5].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[5].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[5].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "A", 0, "600")
 	checkBalance(t, tc, sdb, "A", 1, "500")
@@ -82,7 +91,7 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:0 batch:6")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[6].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[6].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[6].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[6].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "Coord", 0, "10")
 	checkBalance(t, tc, sdb, "Coord", 1, "20")
@@ -96,7 +105,7 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:0 batch:7")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[0].Rollup.Batches[7].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[7].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[7].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[0].Rollup.Batches[7].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "Coord", 0, "35")
 	checkBalance(t, tc, sdb, "Coord", 1, "30")
@@ -111,7 +120,7 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:1 batch:0")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[0].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Rollup.Batches[0].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "Coord", 0, "75")
 	checkBalance(t, tc, sdb, "Coord", 1, "30")
@@ -126,14 +135,14 @@ func TestProcessTxsBalances(t *testing.T) {
 	log.Debug("block:1 batch:1")
 	l1UserTxs = til.L1TxsToCommonL1Txs(tc.Queues[*blocks[1].Rollup.Batches[1].Batch.ForgeL1TxsNum])
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Rollup.Batches[1].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, l1UserTxs, blocks[1].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, l1UserTxs, blocks[1].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
 	// use Set of PoolL2 txs
 	poolL2Txs, err := tc.GeneratePoolL2Txs(til.SetPoolL2MinimumFlow0)
 	assert.Nil(t, err)
 
-	_, err = sdb.ProcessTxs(coordIdxs, []common.L1Tx{}, []common.L1Tx{}, poolL2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, []common.L1Tx{}, []common.L1Tx{}, poolL2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "Coord", 0, "105")
 	checkBalance(t, tc, sdb, "Coord", 1, "40")
@@ -175,17 +184,24 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 	// Idx of user 'A'
 	idxA1 := tc.Users["A"].Accounts[common.TokenID(1)].Idx
 
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  16,
+	}
+
 	// Process the 1st batch, which contains the L1CoordinatorTxs necessary
 	// to create the Coordinator accounts to receive the fees
 	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
-	ptOut, err := sdb.ProcessTxs(nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
+	ptOut, err := sdb.ProcessTxs(ptc, nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 	assert.Equal(t, 4, len(ptOut.CreatedAccounts))
 	assert.Equal(t, 0, len(ptOut.CollectedFees))
 
 	log.Debug("block:0 batch:1")
 	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[1].L2Txs)
-	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[0].Rollup.L1UserTxs,
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, blocks[0].Rollup.L1UserTxs,
 		blocks[0].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
@@ -201,7 +217,7 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 
 	log.Debug("block:0 batch:2")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[2].L2Txs)
-	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, nil, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
 	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
@@ -221,7 +237,7 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 	assert.Equal(t, common.Nonce(0), l2Txs[1].Nonce)
 	assert.Equal(t, common.Nonce(0), l2Txs[2].Nonce)
 
-	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, nil, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
 	// after processing expect l2Txs[0:2].Nonce!=0 and has expected value
@@ -242,7 +258,7 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 
 	log.Debug("block:1 batch:1")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Rollup.Batches[1].L2Txs)
-	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[1].Rollup.L1UserTxs,
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, blocks[1].Rollup.L1UserTxs,
 		blocks[1].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
@@ -287,17 +303,24 @@ func TestProcessTxsBatchBuilder(t *testing.T) {
 	// Idx of user 'A'
 	idxA1 := tc.Users["A"].Accounts[common.TokenID(1)].Idx
 
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  32,
+	}
+
 	// Process the 1st batch, which contains the L1CoordinatorTxs necessary
 	// to create the Coordinator accounts to receive the fees
 	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
-	ptOut, err := sdb.ProcessTxs(nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
+	ptOut, err := sdb.ProcessTxs(ptc, nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 	// expect 0 at CreatedAccount, as is only computed when StateDB.Type==TypeSynchronizer
 	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
 
 	log.Debug("block:0 batch:1")
 	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[1].L2Txs)
-	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[0].Rollup.L1UserTxs, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, blocks[0].Rollup.L1UserTxs, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
 	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
@@ -307,7 +330,7 @@ func TestProcessTxsBatchBuilder(t *testing.T) {
 
 	log.Debug("block:0 batch:2")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[2].L2Txs)
-	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
+	ptOut, err = sdb.ProcessTxs(ptc, coordIdxs, nil, blocks[0].Rollup.Batches[2].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
 	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
@@ -317,7 +340,7 @@ func TestProcessTxsBatchBuilder(t *testing.T) {
 
 	log.Debug("block:1 batch:0")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Rollup.Batches[0].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, nil, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, nil, blocks[1].Rollup.Batches[0].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	acc, err = sdb.GetAccount(idxA1)
 	require.Nil(t, err)
@@ -325,7 +348,7 @@ func TestProcessTxsBatchBuilder(t *testing.T) {
 
 	log.Debug("block:1 batch:1")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Rollup.Batches[1].L2Txs)
-	_, err = sdb.ProcessTxs(coordIdxs, blocks[1].Rollup.L1UserTxs, blocks[1].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
+	_, err = sdb.ProcessTxs(ptc, coordIdxs, blocks[1].Rollup.L1UserTxs, blocks[1].Rollup.Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	acc, err = sdb.GetAccount(idxA1)
 	assert.Nil(t, err)
@@ -378,24 +401,236 @@ func TestZKInputsGeneration(t *testing.T) {
 	// Coordinator Idx where to send the fees
 	coordIdxs := []common.Idx{256}
 
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 8,
+		MaxTx:    32,
+		MaxL1Tx:  16,
+	}
+
 	log.Debug("block:0 batch:0, only L1UserTx")
-	_, err = sdb.ProcessTxs(nil, blocks[0].Rollup.L1UserTxs, nil, nil)
+	_, err = sdb.ProcessTxs(ptc, nil, blocks[0].Rollup.L1UserTxs, nil, nil)
 	require.Nil(t, err)
 
 	log.Debug("block:0 batch:1, only L1CoordinatorTxs")
-	_, err = sdb.ProcessTxs(nil, nil, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, nil)
+	_, err = sdb.ProcessTxs(ptc, nil, nil, blocks[0].Rollup.Batches[1].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 
 	log.Debug("block:0 batch:2, only L2Txs")
 	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Rollup.Batches[2].L2Txs)
-	ptOut, err := sdb.ProcessTxs(coordIdxs, nil, nil, l2Txs)
+	ptOut, err := sdb.ProcessTxs(ptc, coordIdxs, nil, nil, l2Txs)
 	require.Nil(t, err)
 	checkBalance(t, tc, sdb, "A", 1, "2")
 
 	s, err := json.Marshal(ptOut.ZKInputs)
 	require.Nil(t, err)
 	debug := false
+	debug = true
 	if debug {
 		fmt.Println(string(s))
 	}
 }
+
+func TestProcessTxsRootTestVectors(t *testing.T) {
+	dir, err := ioutil.TempDir("", "tmpdb")
+	require.Nil(t, err)
+	defer assert.Nil(t, os.RemoveAll(dir))
+
+	sdb, err := NewStateDB(dir, TypeBatchBuilder, 32)
+	assert.Nil(t, err)
+
+	// same values than in the js test
+	bjj0, err := common.BJJFromStringWithChecksum("21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7")
+	assert.Nil(t, err)
+	l1Txs := []common.L1Tx{
+		{
+			FromIdx:     0,
+			LoadAmount:  big.NewInt(16000000),
+			Amount:      big.NewInt(0),
+			TokenID:     1,
+			FromBJJ:     bjj0,
+			FromEthAddr: ethCommon.HexToAddress("0x7e5f4552091a69125d5dfcb7b8c2659029395bdf"),
+			ToIdx:       0,
+			Type:        common.TxTypeCreateAccountDeposit,
+		},
+	}
+	l2Txs := []common.PoolL2Tx{
+		{
+			FromIdx: 256,
+			ToIdx:   256,
+			TokenID: 1,
+			Amount:  big.NewInt(1000),
+			Nonce:   0,
+			Fee:     126,
+			Type:    common.TxTypeTransfer,
+		},
+	}
+
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 8,
+		MaxTx:    32,
+		MaxL1Tx:  16,
+	}
+	_, err = sdb.ProcessTxs(ptc, nil, l1Txs, nil, l2Txs)
+	require.Nil(t, err)
+	assert.Equal(t, "9827704113668630072730115158977131501210702363656902211840117643154933433410", sdb.mt.Root().BigInt().String())
+}
+
+func TestZKInputsHashTestVector0(t *testing.T) {
+	dir, err := ioutil.TempDir("", "tmpdb")
+	require.Nil(t, err)
+	defer assert.Nil(t, os.RemoveAll(dir))
+
+	sdb, err := NewStateDB(dir, TypeBatchBuilder, 32)
+	assert.Nil(t, err)
+
+	// same values than in the js test
+	bjj0, err := common.BJJFromStringWithChecksum("21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7")
+	assert.Nil(t, err)
+	l1Txs := []common.L1Tx{
+		{
+			FromIdx: 0,
+			// LoadAmount:  big.NewInt(10400),
+			LoadAmount:  big.NewInt(16000000),
+			Amount:      big.NewInt(0),
+			TokenID:     1,
+			FromBJJ:     bjj0,
+			FromEthAddr: ethCommon.HexToAddress("0x7e5f4552091a69125d5dfcb7b8c2659029395bdf"),
+			ToIdx:       0,
+			Type:        common.TxTypeCreateAccountDeposit,
+		},
+	}
+	l2Txs := []common.PoolL2Tx{
+		{
+			FromIdx: 256,
+			ToIdx:   256,
+			TokenID: 1,
+			Amount:  big.NewInt(1000),
+			Nonce:   0,
+			Fee:     126,
+			Type:    common.TxTypeTransfer,
+		},
+	}
+
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 8,
+		MaxTx:    32,
+		MaxL1Tx:  16,
+	}
+	ptOut, err := sdb.ProcessTxs(ptc, nil, l1Txs, nil, l2Txs)
+	require.Nil(t, err)
+
+	// check expected account keys values from tx inputs
+	acc, err := sdb.GetAccount(common.Idx(256))
+	require.Nil(t, err)
+	assert.Equal(t, "d746824f7d0ac5044a573f51b278acb56d823bec39551d1d7bf7378b68a1b021", acc.PublicKey.Compress().String())
+	assert.Equal(t, "0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf", acc.EthAddr.Hex())
+
+	// check that there no exist more accounts
+	_, err = sdb.GetAccount(common.Idx(257))
+	require.NotNil(t, err)
+	ptOut.ZKInputs.FeeIdxs[0] = common.Idx(256).BigInt()
+
+	toHash, err := ptOut.ZKInputs.ToHashGlobalData()
+	assert.Nil(t, err)
+	// value from js test vector
+	expectedToHash := "0000000000ff000000000100000000000000000000000000000000000000000000000000000000000000000015ba488d749f6b891d29d0bf3a72481ec812e4d4ecef2bf7a3fc64f3c010444200000000000000000000000000000000000000000000000000000000000000007e5f4552091a69125d5dfcb7b8c2659029395bdf21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d700000000000028a00000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001000000010003e87e00000100000000000000000000000000000000000000000000000000000000000000"
+	// checks are splitted to find the difference easier
+	assert.Equal(t, expectedToHash[:1000], hex.EncodeToString(toHash)[:1000])
+	assert.Equal(t, expectedToHash[1000:2000], hex.EncodeToString(toHash)[1000:2000])
+	assert.Equal(t, expectedToHash[2000:], hex.EncodeToString(toHash)[2000:])
+
+	h, err := ptOut.ZKInputs.HashGlobalData()
+	require.Nil(t, err)
+	// value from js test vector
+	assert.Equal(t, "80757288244566854497474223360206077562032050734432637237701187686677568506", h.String())
+}
+
+func TestZKInputsHashTestVector1(t *testing.T) {
+	dir, err := ioutil.TempDir("", "tmpdb")
+	require.Nil(t, err)
+	defer assert.Nil(t, os.RemoveAll(dir))
+
+	sdb, err := NewStateDB(dir, TypeBatchBuilder, 32)
+	assert.Nil(t, err)
+
+	// same values than in the js test
+	bjj0, err := common.BJJFromStringWithChecksum("21b0a1688b37f77b1d1d5539ec3b826db5ac78b2513f574a04c50a7d4f8246d7")
+	assert.Nil(t, err)
+	bjj1, err := common.BJJFromStringWithChecksum("093985b1993d9f743f9d7d943ed56f38601cb8b196db025f79650c4007c3054d")
+	assert.Nil(t, err)
+	l1Txs := []common.L1Tx{
+		{
+			FromIdx: 0,
+			// LoadAmount:  big.NewInt(10400),
+			LoadAmount:  big.NewInt(16000000),
+			Amount:      big.NewInt(0),
+			TokenID:     1,
+			FromBJJ:     bjj0,
+			FromEthAddr: ethCommon.HexToAddress("0x7e5f4552091a69125d5dfcb7b8c2659029395bdf"),
+			ToIdx:       0,
+			Type:        common.TxTypeCreateAccountDeposit,
+		},
+		{
+			FromIdx:     0,
+			LoadAmount:  big.NewInt(16000000),
+			Amount:      big.NewInt(0),
+			TokenID:     1,
+			FromBJJ:     bjj1,
+			FromEthAddr: ethCommon.HexToAddress("0x2b5ad5c4795c026514f8317c7a215e218dccd6cf"),
+			ToIdx:       0,
+			Type:        common.TxTypeCreateAccountDeposit,
+		},
+	}
+	l2Txs := []common.PoolL2Tx{
+		{
+			FromIdx: 257,
+			ToIdx:   256,
+			TokenID: 1,
+			Amount:  big.NewInt(1000),
+			Nonce:   0,
+			Fee:     137,
+			Type:    common.TxTypeTransfer,
+		},
+	}
+
+	ptc := ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 8,
+		MaxTx:    32,
+		MaxL1Tx:  16,
+	}
+	ptOut, err := sdb.ProcessTxs(ptc, nil, l1Txs, nil, l2Txs)
+	require.Nil(t, err)
+
+	// check expected account keys values from tx inputs
+	acc, err := sdb.GetAccount(common.Idx(256))
+	require.Nil(t, err)
+	assert.Equal(t, "d746824f7d0ac5044a573f51b278acb56d823bec39551d1d7bf7378b68a1b021", acc.PublicKey.Compress().String())
+	assert.Equal(t, "0x7E5F4552091A69125d5DfCb7b8C2659029395Bdf", acc.EthAddr.Hex())
+	acc, err = sdb.GetAccount(common.Idx(257))
+	require.Nil(t, err)
+	assert.Equal(t, "4d05c307400c65795f02db96b1b81c60386fd53e947d9d3f749f3d99b1853909", acc.PublicKey.Compress().String())
+	assert.Equal(t, "0x2B5AD5c4795c026514f8317c7a215E218DcCD6cF", acc.EthAddr.Hex())
+
+	// check that there no exist more accounts
+	_, err = sdb.GetAccount(common.Idx(258))
+	require.NotNil(t, err)
+	ptOut.ZKInputs.FeeIdxs[0] = common.Idx(257).BigInt()
+
+	toHash, err := ptOut.ZKInputs.ToHashGlobalData()
+	assert.Nil(t, err)
+	// value from js test vector
+	expectedToHash := "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"
+	// checks are splitted to find the difference easier
+	assert.Equal(t, expectedToHash[:1000], hex.EncodeToString(toHash)[:1000])
+	assert.Equal(t, expectedToHash[1000:2000], hex.EncodeToString(toHash)[1000:2000])
+	assert.Equal(t, expectedToHash[2000:], hex.EncodeToString(toHash)[2000:])
+
+	h, err := ptOut.ZKInputs.HashGlobalData()
+	require.Nil(t, err)
+	// value from js test vector
+	assert.Equal(t, "10900521462378877053056992084240080637954406133884857263674494661625916419481", h.String())
+}
diff --git a/eth/rollup.go b/eth/rollup.go
index ba1be96..f0903c2 100644
--- a/eth/rollup.go
+++ b/eth/rollup.go
@@ -245,7 +245,7 @@ func (c *RollupClient) RollupForgeBatch(args *RollupForgeBatchArgs) (tx *types.T
 			var l2DataBytes []byte
 			for i := 0; i < len(args.L2TxsData); i++ {
 				l2 := args.L2TxsData[i]
-				bytesl2, err := l2.Bytes(int(nLevels))
+				bytesl2, err := l2.Bytes(uint32(nLevels))
 				if err != nil {
 					return nil, err
 				}
diff --git a/synchronizer/synchronizer.go b/synchronizer/synchronizer.go
index 9b62d23..b43172c 100644
--- a/synchronizer/synchronizer.go
+++ b/synchronizer/synchronizer.go
@@ -616,7 +616,14 @@ func (s *Synchronizer) rollupSync(ethBlock *common.Block) (*common.RollupData, e
 		poolL2Txs := common.L2TxsToPoolL2Txs(forgeBatchArgs.L2TxsData) // NOTE: This is a big ugly, find a better way
 
 		// ProcessTxs updates poolL2Txs adding: Nonce (and also TokenID, but we don't use it).
-		processTxsOut, err := s.stateDB.ProcessTxs(forgeBatchArgs.FeeIdxCoordinator, l1UserTxs,
+		//nolint:gomnd
+		ptc := statedb.ProcessTxsConfig{ // TODO TMP
+			NLevels:  32,
+			MaxFeeTx: 64,
+			MaxTx:    512,
+			MaxL1Tx:  64,
+		}
+		processTxsOut, err := s.stateDB.ProcessTxs(ptc, forgeBatchArgs.FeeIdxCoordinator, l1UserTxs,
 			batchData.L1CoordinatorTxs, poolL2Txs)
 		if err != nil {
 			return nil, err
diff --git a/test/til/README.md b/test/til/README.md
index c0ae10d..73dc961 100644
--- a/test/til/README.md
+++ b/test/til/README.md
@@ -90,11 +90,11 @@ PoolExit(1) A: 3 (1)
 tc := til.NewContext(eth.RollupConstMaxL1UserTx)
 
 // generate Blockchain blocks data from the common.SetBlockcahin0 instructions set
-blocks, err = tc.GenerateBlocks(common.SetBlockchain0)
+blocks, err = tc.GenerateBlocks(common.SetBlockchainMinimumFlow0)
 assert.Nil(t, err)
 
 // generate PoolL2 transactions data from the common.SetPool0 instructions set
-poolL2Txs, err = tc.GenerateBlocks(common.SetPool0)
+poolL2Txs, err = tc.GeneratePoolL2Txs(common.SetPoolL2MinimumFlow0)
 assert.Nil(t, err)
 ```
 
diff --git a/txselector/txselector.go b/txselector/txselector.go
index 173eb58..6422c7b 100644
--- a/txselector/txselector.go
+++ b/txselector/txselector.go
@@ -211,11 +211,18 @@ func (txsel *TxSelector) GetL1L2TxSelection(coordIdxs []common.Idx, batchNum com
 	}
 
 	// get most profitable L2-tx
-	maxL2Txs := txsel.MaxTxs - uint64(len(l1CoordinatorTxs)) // - len(l1UserTxs)
+	maxL2Txs := txsel.MaxTxs - uint64(len(l1CoordinatorTxs)) // - len(l1UserTxs) // TODO if there are L1UserTxs take them in to account
 	l2Txs := txsel.getL2Profitable(validTxs, maxL2Txs)
 
+	//nolint:gomnd
+	ptc := statedb.ProcessTxsConfig{ // TODO TMP
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  64,
+	}
 	// process the txs in the local AccountsDB
-	_, err = txsel.localAccountsDB.ProcessTxs(coordIdxs, l1Txs, l1CoordinatorTxs, l2Txs)
+	_, err = txsel.localAccountsDB.ProcessTxs(ptc, coordIdxs, l1Txs, l1CoordinatorTxs, l2Txs)
 	if err != nil {
 		return nil, nil, nil, err
 	}
diff --git a/txselector/txselector_test.go b/txselector/txselector_test.go
index 896f201..51ac0b0 100644
--- a/txselector/txselector_test.go
+++ b/txselector/txselector_test.go
@@ -83,9 +83,15 @@ func TestGetL2TxSelection(t *testing.T) {
 	}
 	addTokens(t, tokens, txsel.l2db.DB())
 
+	ptc := statedb.ProcessTxsConfig{
+		NLevels:  32,
+		MaxFeeTx: 64,
+		MaxTx:    512,
+		MaxL1Tx:  64,
+	}
 	// Process the 1st batch, which contains the L1CoordinatorTxs necessary
 	// to create the Coordinator accounts to receive the fees
-	_, err = txsel.localAccountsDB.ProcessTxs(nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
+	_, err = txsel.localAccountsDB.ProcessTxs(ptc, nil, nil, blocks[0].Rollup.Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 
 	// add the 1st batch of transactions to the TxSelector