fix

packages/taiko-client/bindings/encoding/input.go

@@ -298,6 +298,9 @@ var (
 		{Name: "TaikoData.BlockMetadata", Type: blockMetadataV2ComponentsType},
 		{Name: "TaikoData.Transition", Type: transitionComponentsType},
 	}
+	proveBlocksBatchProofArgs = abi.Arguments{
+		{Name: "TaikoData.TierProof", Type: tierProofComponentsType},
+	}
 )
 
 // Contract ABIs.
@@ -455,6 +458,19 @@ func EncodeProveBlocksInput(
 	return b, nil
 }
 
+// EncodeProveBlocksBatchProof performs the solidity `abi.encode` for the given TaikoL1.proveBlocks batchProof.
+func EncodeProveBlocksBatchProof(
+	tierProof *bindings.TaikoDataTierProof,
+) ([]byte, error) {
+	input, err := proveBlocksBatchProofArgs.Pack(
+		tierProof,
+	)
+	if err != nil {
+		return nil, fmt.Errorf("failed to abi.encode TaikoL1.proveBlocks input item after ontake fork, %w", err)
+	}
+	return input, nil
+}
+
 // UnpackTxListBytes unpacks the input data of a TaikoL1.proposeBlock transaction, and returns the txList bytes.
 func UnpackTxListBytes(txData []byte) ([]byte, error) {
 	method, err := TaikoL1ABI.MethodById(txData)

packages/taiko-client/prover/proof_submitter/transaction/builder.go

@@ -187,13 +187,20 @@ func (a *ProveBlockTxBuilder) BuildProveBlocks(
 		if err != nil {
 			return nil, err
 		}
+		tierProof, err := encoding.EncodeProveBlocksBatchProof(&bindings.TaikoDataTierProof{
+			Tier: batchProof.Tier,
+			Data: batchProof.BatchProof,
+		})
+		if err != nil {
+			return nil, err
+		}
 
 		if a.proverSetAddress != ZeroAddress {
 			if data, err = encoding.ProverSetABI.Pack(
 				"proveBlocks",
 				blockIDs,
 				input,
-				batchProof.BatchProof,
+				tierProof,
 			); err != nil {
 				return nil, err
 			}
@@ -203,7 +210,7 @@ func (a *ProveBlockTxBuilder) BuildProveBlocks(
 				"proveBlocks",
 				blockIDs,
 				input,
-				batchProof.BatchProof,
+				tierProof,
 			); err != nil {
 				return nil, err
 			}