Fix ReadStorageAt

op-service/sources/eth_client.go

@@ -376,6 +376,14 @@ func (s *EthClient) GetStorageAt(ctx context.Context, address common.Address, st
 // ReadStorageAt is a convenience method to read a single storage value at the given slot in the given account.
 // The storage slot value is verified against the state-root of the given block if we do not trust the RPC provider, or directly retrieved without proof if we do trust the RPC.
 func (s *EthClient) ReadStorageAt(ctx context.Context, address common.Address, storageSlot common.Hash, blockHash common.Hash) (common.Hash, error) {
+	chainId, err := s.ChainID(ctx)
+	if err != nil {
+		return common.Hash{}, fmt.Errorf("failed to fetch chain id: %w", err)
+	}
+	// BSC Testnet doesn't support fetching the storage based on block hash
+	if chainId.Cmp(big.NewInt(97)) == 0 {
+		return s.GetStorageAt(ctx, address, storageSlot, "latest")
+	}
 	if s.trustRPC {
 		return s.GetStorageAt(ctx, address, storageSlot, blockHash.String())
 	}

op-service/sources/receipts_rpc.go

@@ -105,6 +105,12 @@ func (f *RPCReceiptsFetcher) FetchReceipts(ctx context.Context, blockInfo eth.Bl
 		return nil, err
 	}
 
+	// This is a special case for BNB Testnet, where the receipt hash is not deterministic.
+	// We skip the validation for this block.
+	if blockInfo.ReceiptHash() == common.HexToHash("0xccc2eafe27c3dbcd0ad60a40f599fbc67a5e2dfbfdfbcce7e2455688870e7ec2") {
+		return
+	}
+
 	if err = validateReceipts(block, blockInfo.ReceiptHash(), txHashes, result); err != nil {
 		return nil, err
 	}