diff --git a/Cargo.lock b/Cargo.lock
index c148fc7..00a4f55 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -190,7 +190,7 @@ dependencies = [
 
 [[package]]
 name = "dragonfly-api"
-version = "2.1.23"
+version = "2.1.24"
 dependencies = [
  "prost",
  "prost-types",
diff --git a/Cargo.toml b/Cargo.toml
index 374ab31..e1d74c2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dragonfly-api"
-version = "2.1.23"
+version = "2.1.24"
 authors = ["Gaius <gaius.qi@gmail.com>"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/Makefile b/Makefile
index 43c6528..1a970be 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ all: help
 # Run code lint
 lint: markdownlint
 	@echo "Begin to golangci-lint."
-	@golangci-lint run
+	@./hack/golanglint.sh
 .PHONY: lint
 
 # Run markdown lint
diff --git a/hack/golanglint.sh b/hack/golanglint.sh
new file mode 100755
index 0000000..5a00918
--- /dev/null
+++ b/hack/golanglint.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+LINT_DIR=/data
+GOLANGCI_IMAGE=golangci/golangci-lint:v1.54
+
+docker run --rm \
+    -w "${LINT_DIR}" \
+    -v "$(pwd):${LINT_DIR}:ro" \
+    ${GOLANGCI_IMAGE} \
+    golangci-lint \
+    run -v
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.pb.go b/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
index b8143b6..1789378 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
@@ -533,6 +533,8 @@ type DownloadPieceResponse struct {
 
 	// Piece information.
 	Piece *v2.Piece `protobuf:"bytes,1,opt,name=piece,proto3" json:"piece,omitempty"`
+	// Piece digest.
+	Digest *string `protobuf:"bytes,2,opt,name=digest,proto3,oneof" json:"digest,omitempty"`
 }
 
 func (x *DownloadPieceResponse) Reset() {
@@ -574,6 +576,13 @@ func (x *DownloadPieceResponse) GetPiece() *v2.Piece {
 	return nil
 }
 
+func (x *DownloadPieceResponse) GetDigest() string {
+	if x != nil && x.Digest != nil {
+		return *x.Digest
+	}
+	return ""
+}
+
 // UploadTaskRequest represents request of UploadTask.
 type UploadTaskRequest struct {
 	state         protoimpl.MessageState
@@ -1650,277 +1659,289 @@ var file_pkg_apis_dfdaemon_v2_dfdaemon_proto_rawDesc = []byte{
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 }
 
 var (
@@ -2321,6 +2342,7 @@ func file_pkg_apis_dfdaemon_v2_dfdaemon_proto_init() {
 		(*DownloadTaskResponse_DownloadTaskStartedResponse)(nil),
 		(*DownloadTaskResponse_DownloadPieceFinishedResponse)(nil),
 	}
+	file_pkg_apis_dfdaemon_v2_dfdaemon_proto_msgTypes[7].OneofWrappers = []interface{}{}
 	file_pkg_apis_dfdaemon_v2_dfdaemon_proto_msgTypes[11].OneofWrappers = []interface{}{}
 	file_pkg_apis_dfdaemon_v2_dfdaemon_proto_msgTypes[13].OneofWrappers = []interface{}{
 		(*DownloadPersistentCacheTaskResponse_DownloadPersistentCacheTaskStartedResponse)(nil),
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go b/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
index 84d432d..c24b54b 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
@@ -1160,6 +1160,25 @@ func (m *DownloadPieceResponse) validate(all bool) error {
 		}
 	}
 
+	if m.Digest != nil {
+
+		if m.GetDigest() != "" {
+
+			if !_DownloadPieceResponse_Digest_Pattern.MatchString(m.GetDigest()) {
+				err := DownloadPieceResponseValidationError{
+					field:  "Digest",
+					reason: "value does not match regex pattern \"^(md5:[a-fA-F0-9]{32}|sha1:[a-fA-F0-9]{40}|sha256:[a-fA-F0-9]{64}|sha512:[a-fA-F0-9]{128}|blake3:[a-fA-F0-9]{64}|crc32:[a-fA-F0-9]+)$\"",
+				}
+				if !all {
+					return err
+				}
+				errors = append(errors, err)
+			}
+
+		}
+
+	}
+
 	if len(errors) > 0 {
 		return DownloadPieceResponseMultiError(errors)
 	}
@@ -1240,6 +1259,8 @@ var _ interface {
 	ErrorName() string
 } = DownloadPieceResponseValidationError{}
 
+var _DownloadPieceResponse_Digest_Pattern = regexp.MustCompile("^(md5:[a-fA-F0-9]{32}|sha1:[a-fA-F0-9]{40}|sha256:[a-fA-F0-9]{64}|sha512:[a-fA-F0-9]{128}|blake3:[a-fA-F0-9]{64}|crc32:[a-fA-F0-9]+)$")
+
 // Validate checks the field values on UploadTaskRequest with the rules defined
 // in the proto definition for this message. If any rules are violated, the
 // first error encountered is returned, or nil if there are no violations.
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.proto b/pkg/apis/dfdaemon/v2/dfdaemon.proto
index 263edce..5f0f5a2 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.proto
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.proto
@@ -105,6 +105,8 @@ message DownloadPieceRequest{
 message DownloadPieceResponse {
   // Piece information.
   common.v2.Piece piece = 1 [(validate.rules).message.required = true];
+  // Piece digest.
+  optional string digest = 2 [(validate.rules).string = {pattern: "^(md5:[a-fA-F0-9]{32}|sha1:[a-fA-F0-9]{40}|sha256:[a-fA-F0-9]{64}|sha512:[a-fA-F0-9]{128}|blake3:[a-fA-F0-9]{64}|crc32:[a-fA-F0-9]+)$", ignore_empty: true}];
 }
 
 // UploadTaskRequest represents request of UploadTask.
diff --git a/proto/dfdaemon.proto b/proto/dfdaemon.proto
index 00bb3de..e3e8175 100644
--- a/proto/dfdaemon.proto
+++ b/proto/dfdaemon.proto
@@ -100,6 +100,8 @@ message DownloadPieceRequest{
 message DownloadPieceResponse {
   // Piece information.
   common.v2.Piece piece = 1;
+  // Piece digest.
+  optional string digest = 2;
 }
 
 // StatTaskRequest represents request of StatTask.
diff --git a/src/descriptor.bin b/src/descriptor.bin
index 5e9f01d..a1ca90e 100644
Binary files a/src/descriptor.bin and b/src/descriptor.bin differ
diff --git a/src/dfdaemon.v2.rs b/src/dfdaemon.v2.rs
index 741af1e..d374a65 100644
--- a/src/dfdaemon.v2.rs
+++ b/src/dfdaemon.v2.rs
@@ -122,6 +122,9 @@ pub struct DownloadPieceResponse {
     /// Piece information.
     #[prost(message, optional, tag = "1")]
     pub piece: ::core::option::Option<super::super::common::v2::Piece>,
+    /// Piece digest.
+    #[prost(string, optional, tag = "2")]
+    pub digest: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// StatTaskRequest represents request of StatTask.
 #[derive(serde::Serialize, serde::Deserialize)]