From 1116e55984b3ce45ed903fa882d8142aa48ce483 Mon Sep 17 00:00:00 2001
From: ImJeremyHe <yiliang.he@qq.com>
Date: Fri, 15 Nov 2024 10:34:20 +0800
Subject: [PATCH] Remove signature

---
 arbnode/transaction_streamer.go | 14 +++-----------
 arbos/parse_l2.go               |  5 +----
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/arbnode/transaction_streamer.go b/arbnode/transaction_streamer.go
index 6ef91fa8c0..11e1c1d74f 100644
--- a/arbnode/transaction_streamer.go
+++ b/arbnode/transaction_streamer.go
@@ -1330,16 +1330,8 @@ func (s *TransactionStreamer) pollSubmittedTransactionForFinality(ctx context.Co
 		msgs = append(msgs, *msg.Message)
 	}
 
-	// Sovereign sequencer submits hotshot transactions one by one. It ensures that
-	// every hotshot block only contains 1 hotshot transaction.
-	tx := resp.Transactions[0]
-	// The first 65 bytes is the signature. Get the signature from the hotshot transaction.
-	//
-	// From an efficiency perspective, we don’t need to reconstruct the signature.
-	// In terms of purpose, we don’t care whether the signature is consistent;
-	// we only care about whether our messages have been confirmed.
-	sig := tx[0:65]
-	payload, err := arbos.BuildHotShotPayload(&msgs, (*[]byte)(&sig))
+	// Rebuild the hotshot payload with messages to check if it is finalizied
+	payload, err := arbos.BuildHotShotPayload(&msgs)
 	if err != nil {
 		return s.config().EspressoTxnsPollingInterval
 	}
@@ -1637,7 +1629,7 @@ func (s *TransactionStreamer) submitEspressoTransactions(ctx context.Context, ig
 			}
 			msgs = append(msgs, *msg.Message)
 		}
-		payload, err := arbos.BuildHotShotPayload(&msgs, nil)
+		payload, err := arbos.BuildHotShotPayload(&msgs)
 		if err != nil {
 			log.Error("failed to build hotshot transaction payload", "err", err)
 			return s.config().EspressoTxnsPollingInterval
diff --git a/arbos/parse_l2.go b/arbos/parse_l2.go
index bbac615641..4a3266db3c 100644
--- a/arbos/parse_l2.go
+++ b/arbos/parse_l2.go
@@ -584,11 +584,8 @@ func IsEspressoSovereignMsg(msg *arbostypes.L1IncomingMessage) bool {
 		msg.L2msg[0] == L2MessageKind_EspressoSovereignTx
 }
 
-func BuildHotShotPayload(msgs *[]arbostypes.L1IncomingMessage, sig *([]byte)) (espressoTypes.Bytes, error) {
+func BuildHotShotPayload(msgs *[]arbostypes.L1IncomingMessage) (espressoTypes.Bytes, error) {
 	payload := []byte{}
-	if sig != nil {
-		payload = append(payload, *sig...)
-	}
 
 	sizeBuf := make([]byte, 8)
 	for _, msg := range *msgs {