diff --git a/chains/ethereum/chain.go b/chains/ethereum/chain.go
index 1b487cd7..a4756aa3 100644
--- a/chains/ethereum/chain.go
+++ b/chains/ethereum/chain.go
@@ -59,20 +59,7 @@ func mapToOther(m *chain.Maintainer, latestBlock *big.Int) error {
 		return err
 	}
 	istanbulExtra := mapprotocol.ConvertIstanbulExtra(ist)
-	var input []byte
-	if m.Cfg.ApiUrl == "" {
-		input, err = mapprotocol.PackInput(mapprotocol.Map2Other, mapprotocol.MethodUpdateBlockHeader, h, istanbulExtra, aggPK)
-	} else {
-		proof, err := mapprotocol.GetZkProof(m.Cfg.ApiUrl, m.Cfg.Id, latestBlock.Uint64())
-		if err != nil {
-			return err
-		}
-		validators, err := mapprotocol.GetCurValidators(m.Conn.Client(), latestBlock)
-		if err != nil {
-			return err
-		}
-		input, err = mapprotocol.PackInput(mapprotocol.Other, mapprotocol.MethodUpdateBlockHeader, validators, h, istanbulExtra, proof)
-	}
+	input, err := mapprotocol.PackInput(mapprotocol.Map2Other, mapprotocol.MethodUpdateBlockHeader, h, istanbulExtra, aggPK)
 	if err != nil {
 		return err
 	}
@@ -80,7 +67,6 @@ func mapToOther(m *chain.Maintainer, latestBlock *big.Int) error {
 	msgpayload := []interface{}{input}
 	waitCount := len(m.Cfg.SyncChainIDList)
 	for _, cid := range m.Cfg.SyncChainIDList {
-		// Only when the latestblock is greater than the height of the synchronized block, the synchronization is performed
 		if v, ok := mapprotocol.SyncOtherMap[cid]; ok && latestBlock.Cmp(v) <= 0 {
 			waitCount--
 			m.Log.Info("map to other current less than synchronized headerHeight", "toChainId", cid, "synced height", v,
diff --git a/internal/chain/block_map2other.go b/internal/chain/block_map2other.go
index b01bdb3e..da41b784 100644
--- a/internal/chain/block_map2other.go
+++ b/internal/chain/block_map2other.go
@@ -3,7 +3,6 @@ package chain
 import (
 	"context"
 	"fmt"
-	"math/big"
 	"strings"
 	"time"
 
@@ -24,8 +23,6 @@ func (w *Writer) execMap2OtherMsg(m msg.Message) bool {
 		case <-w.stop:
 			return false
 		default:
-			id, _ := m.Payload[0].(*big.Int)
-			marshal, _ := m.Payload[1].([]byte)
 			err := w.conn.LockAndUpdateOpts(needNonce)
 			if err != nil {
 				w.log.Error("Failed to update nonce", "err", err)
@@ -33,13 +30,7 @@ func (w *Writer) execMap2OtherMsg(m msg.Message) bool {
 				continue
 			}
 
-			data, err := mapprotocol.PackInput(mapprotocol.LightManger, mapprotocol.MethodUpdateBlockHeader, id, marshal)
-			if err != nil {
-				w.log.Error("map2other Failed to pack abi data", "err", err)
-				w.conn.UnlockOpts()
-				return false
-			}
-			tx, err := w.sendTx(&w.cfg.LightNode, nil, data)
+			tx, err := w.sendTx(&w.cfg.LightNode, nil, m.Payload[0].([]byte))
 			w.conn.UnlockOpts()
 			if err == nil {
 				// message successfully handled