diff --git a/bdledger/api/node.proto b/bdledger/api/node.proto
index 4d177a7..4461edf 100644
--- a/bdledger/api/node.proto
+++ b/bdledger/api/node.proto
@@ -14,5 +14,5 @@ service Node {
 }
 
 message ClientVersionResponse {
-    string version = 1; // 节点客户端版本
-  }
\ No newline at end of file
+  string version = 1; // 节点客户端版本
+}
diff --git a/bdledger/api/query.proto b/bdledger/api/query.proto
index a7d8958..48c7470 100644
--- a/bdledger/api/query.proto
+++ b/bdledger/api/query.proto
@@ -10,80 +10,80 @@ option java_outer_classname = "QueryProto";
 option java_multiple_files = true;
 
 service Query {
-    rpc GetBlockByHash (GetBlockByHashRequest) returns (GetBlockByHashResponse);
-    rpc GetBlocks (BlocksRequest) returns (GetBlocksResponse);
-    rpc CountBlocks (BlocksRequest) returns (CountBlocksResponse);
-    rpc GetTransactionByHash (GetTransactionByHashRequest) returns (GetTransactionByHashResponse);
-    rpc GetTransactionByBlockHashAndIndex (GetTransactionByBlockHashAndIndexRequest) returns (GetTransactionByBlockHashAndIndexResponse);
-    rpc GetTransactions (TransactionsRequest) returns (GetTransactionsResponse);
-    rpc CountTransactions (TransactionsRequest) returns (CountTransactionsResponse);
+  rpc GetBlockByHash (GetBlockByHashRequest) returns (GetBlockByHashResponse);
+  rpc GetBlocks (BlocksRequest) returns (GetBlocksResponse);
+  rpc CountBlocks (BlocksRequest) returns (CountBlocksResponse);
+  rpc GetTransactionByHash (GetTransactionByHashRequest) returns (GetTransactionByHashResponse);
+  rpc GetTransactionByBlockHashAndIndex (GetTransactionByBlockHashAndIndexRequest) returns (GetTransactionByBlockHashAndIndexResponse);
+  rpc GetTransactions (TransactionsRequest) returns (GetTransactionsResponse);
+  rpc CountTransactions (TransactionsRequest) returns (CountTransactionsResponse);
 }
 
 message BlockFilter {
-    bytes hash = 1;
-    int64 timestamp = 2;
+  bytes hash = 1;
+  int64 timestamp = 2;
 }
 
 // repeated Transaction/BlockFilters are combined by "&&"(and) operator;
 message TransactionFilter {
-    bytes hash = 1;
-    bytes from = 2;
-    bytes to = 3;
-    bytes timestamp = 4;
+  bytes hash = 1;
+  bytes from = 2;
+  bytes to = 3;
+  bytes timestamp = 4;
 }
 
 message GetBlockByHashRequest {
-    string ledger = 1;
-    bytes hash = 2;
-    bool full_transactions = 3;
+  string ledger = 1;
+  bytes hash = 2;
+  bool full_transactions = 3;
 }
 message GetBlockByHashResponse {
-    Block block = 1;
+  Block block = 1;
 }
 
 message BlocksRequest {
-    string ledger = 1;
-    repeated BlockFilter filters = 2;
-    int64 start_timestamp = 3; // required
-    int64 end_timestamp = 4;
+  string ledger = 1;
+  repeated BlockFilter filters = 2;
+  int64 start_timestamp = 3; // required
+  int64 end_timestamp = 4;
 }
 message GetBlocksResponse {
-    repeated Block blocks = 1;
-    int64 start_timestamp = 2;
-    int64 end_timestamp = 3;
+  repeated Block blocks = 1;
+  int64 start_timestamp = 2;
+  int64 end_timestamp = 3;
 }
 message CountBlocksResponse {
-    uint64 count = 1;
+  uint64 count = 1;
 }
 
 message GetTransactionByHashRequest {
-    string ledger = 1;
-    bytes hash = 2;
+  string ledger = 1;
+  bytes hash = 2;
 }
 message GetTransactionByHashResponse {
-    Transaction transaction = 1;
+  Transaction transaction = 1;
 }
 
 message GetTransactionByBlockHashAndIndexRequest {
-    string ledger = 1;
-    bytes block_hash = 2;
-    uint32 index = 3;
+  string ledger = 1;
+  bytes block_hash = 2;
+  uint32 index = 3;
 }
 message GetTransactionByBlockHashAndIndexResponse {
-    Transaction transaction = 1;
+  Transaction transaction = 1;
 }
 
 message TransactionsRequest {
-    string ledger = 1;
-    repeated TransactionFilter filters = 2;
-    int64 start_timestamp = 3; // required
-    int64 end_timestamp = 4;
+  string ledger = 1;
+  repeated TransactionFilter filters = 2;
+  int64 start_timestamp = 3; // required
+  int64 end_timestamp = 4;
 }
 message GetTransactionsResponse {
-    repeated Transaction transactions = 1;
-    int64 start_timestamp = 2;
-    int64 end_timestamp = 3;
+  repeated Transaction transactions = 1;
+  int64 start_timestamp = 2;
+  int64 end_timestamp = 3;
 }
 message CountTransactionsResponse {
-    uint64 count = 1;
+  uint64 count = 1;
 }