diff --git a/Cargo.lock b/Cargo.lock
index dcc4d79..64e7346 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -190,7 +190,7 @@ dependencies = [
 
 [[package]]
 name = "dragonfly-api"
-version = "2.1.39"
+version = "2.1.40"
 dependencies = [
  "prost 0.13.5",
  "prost-types 0.14.1",
diff --git a/Cargo.toml b/Cargo.toml
index 6c3c5b1..fec5ea7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "dragonfly-api"
-version = "2.1.39"
+version = "2.1.40"
 authors = ["Gaius <gaius.qi@gmail.com>"]
 edition = "2021"
 license = "Apache-2.0"
diff --git a/pkg/apis/common/v2/common.pb.go b/pkg/apis/common/v2/common.pb.go
index ad475da..f701ff9 100644
--- a/pkg/apis/common/v2/common.pb.go
+++ b/pkg/apis/common/v2/common.pb.go
@@ -562,7 +562,12 @@ type Task struct {
 	Type TaskType `protobuf:"varint,2,opt,name=type,proto3,enum=common.v2.TaskType" json:"type,omitempty"`
 	// Download url.
 	Url string `protobuf:"bytes,3,opt,name=url,proto3" json:"url,omitempty"`
-	// Digest of the task digest, for example blake3:xxx or sha256:yyy.
+	// Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+	// Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+	// Returns an error if the computed digest mismatches the expected value.
+	//
+	// Performance
+	// Digest calculation increases processing time. Enable only when data integrity verification is critical.
 	Digest *string `protobuf:"bytes,4,opt,name=digest,proto3,oneof" json:"digest,omitempty"`
 	// URL tag identifies different task for same url.
 	Tag *string `protobuf:"bytes,5,opt,name=tag,proto3,oneof" json:"tag,omitempty"`
diff --git a/pkg/apis/common/v2/common.proto b/pkg/apis/common/v2/common.proto
index 84f1769..830a963 100644
--- a/pkg/apis/common/v2/common.proto
+++ b/pkg/apis/common/v2/common.proto
@@ -169,7 +169,12 @@ message Task {
   TaskType type = 2 [(validate.rules).enum.defined_only = true];
   // Download url.
   string url = 3 [(validate.rules).string.uri = true];
-  // Digest of the task digest, for example blake3:xxx or sha256:yyy.
+  // Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+  // Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+  // Returns an error if the computed digest mismatches the expected value.
+  //
+  // Performance
+  // Digest calculation increases processing time. Enable only when data integrity verification is critical.
   optional string digest = 4 [(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}];
   // URL tag identifies different task for same url.
   optional string tag = 5;
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.pb.go b/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
index 57e3c32..8c3ee01 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.pb.go
@@ -709,6 +709,13 @@ type DownloadPersistentCacheTaskRequest struct {
 	// force_hard_link is the flag to indicate whether the exported file must be hard linked to the output path.
 	// For more details refer to https://github.com/dragonflyoss/design/blob/main/systems-analysis/file-download-workflow-with-hard-link/README.md.
 	ForceHardLink bool `protobuf:"varint,8,opt,name=force_hard_link,json=forceHardLink,proto3" json:"force_hard_link,omitempty"`
+	// Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+	// Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+	// Returns an error if the computed digest mismatches the expected value.
+	//
+	// Performance
+	// Digest calculation increases processing time. Enable only when data integrity verification is critical.
+	Digest *string `protobuf:"bytes,9,opt,name=digest,proto3,oneof" json:"digest,omitempty"`
 }
 
 func (x *DownloadPersistentCacheTaskRequest) Reset() {
@@ -799,6 +806,13 @@ func (x *DownloadPersistentCacheTaskRequest) GetForceHardLink() bool {
 	return false
 }
 
+func (x *DownloadPersistentCacheTaskRequest) GetDigest() string {
+	if x != nil && x.Digest != nil {
+		return *x.Digest
+	}
+	return ""
+}
+
 // DownloadPersistentCacheTaskStartedResponse represents task download started response of DownloadPersistentCacheTaskResponse.
 type DownloadPersistentCacheTaskStartedResponse struct {
 	state         protoimpl.MessageState
@@ -1829,7 +1843,7 @@ var file_pkg_apis_dfdaemon_v2_dfdaemon_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go b/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
index e992383..b904e64 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.pb.validate.go
@@ -1585,6 +1585,10 @@ func (m *DownloadPersistentCacheTaskRequest) validate(all bool) error {
 
 	}
 
+	if m.Digest != nil {
+		// no validation rules for Digest
+	}
+
 	if len(errors) > 0 {
 		return DownloadPersistentCacheTaskRequestMultiError(errors)
 	}
diff --git a/pkg/apis/dfdaemon/v2/dfdaemon.proto b/pkg/apis/dfdaemon/v2/dfdaemon.proto
index c048ec8..4c91073 100644
--- a/pkg/apis/dfdaemon/v2/dfdaemon.proto
+++ b/pkg/apis/dfdaemon/v2/dfdaemon.proto
@@ -145,6 +145,13 @@ message DownloadPersistentCacheTaskRequest {
   // force_hard_link is the flag to indicate whether the exported file must be hard linked to the output path.
   // For more details refer to https://github.com/dragonflyoss/design/blob/main/systems-analysis/file-download-workflow-with-hard-link/README.md.
   bool force_hard_link = 8;
+  // Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+  // Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+  // Returns an error if the computed digest mismatches the expected value.
+  //
+  // Performance
+  // Digest calculation increases processing time. Enable only when data integrity verification is critical.
+  optional string digest = 9;
 }
 
 // DownloadPersistentCacheTaskStartedResponse represents task download started response of DownloadPersistentCacheTaskResponse.
diff --git a/proto/common.proto b/proto/common.proto
index 5e199b5..7e49754 100644
--- a/proto/common.proto
+++ b/proto/common.proto
@@ -163,7 +163,12 @@ message Task {
   TaskType type = 2;
   // Download url.
   string url = 3;
-  // Digest of the task digest, for example blake3:xxx or sha256:yyy.
+  // Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+  // Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+  // Returns an error if the computed digest mismatches the expected value.
+  //
+  // Performance
+  // Digest calculation increases processing time. Enable only when data integrity verification is critical.
   optional string digest = 4;
   // URL tag identifies different task for same url.
   optional string tag = 5;
diff --git a/proto/dfdaemon.proto b/proto/dfdaemon.proto
index bdea6b6..7aa6e9b 100644
--- a/proto/dfdaemon.proto
+++ b/proto/dfdaemon.proto
@@ -140,7 +140,13 @@ message DownloadPersistentCacheTaskRequest {
   // force_hard_link is the flag to indicate whether the exported file must be hard linked to the output path.
   // For more details refer to https://github.com/dragonflyoss/design/blob/main/systems-analysis/file-download-workflow-with-hard-link/README.md.
   bool force_hard_link = 8;
-
+  // Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+  // Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+  // Returns an error if the computed digest mismatches the expected value.
+  //
+  // Performance
+  // Digest calculation increases processing time. Enable only when data integrity verification is critical.
+  optional string digest = 9;
 }
 
 // DownloadPersistentCacheTaskStartedResponse represents task download started response of DownloadPersistentCacheTaskResponse.
diff --git a/src/common.v2.rs b/src/common.v2.rs
index 4a0d8d5..fe716ad 100644
--- a/src/common.v2.rs
+++ b/src/common.v2.rs
@@ -85,7 +85,12 @@ pub struct Task {
     /// Download url.
     #[prost(string, tag = "3")]
     pub url: ::prost::alloc::string::String,
-    /// Digest of the task digest, for example blake3:xxx or sha256:yyy.
+    /// Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+    /// Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+    /// Returns an error if the computed digest mismatches the expected value.
+    ///
+    /// Performance
+    /// Digest calculation increases processing time. Enable only when data integrity verification is critical.
     #[prost(string, optional, tag = "4")]
     pub digest: ::core::option::Option<::prost::alloc::string::String>,
     /// URL tag identifies different task for same url.
diff --git a/src/descriptor.bin b/src/descriptor.bin
index 47508af..6fa88b9 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 c6c61db..5f2ea0f 100644
--- a/src/dfdaemon.v2.rs
+++ b/src/dfdaemon.v2.rs
@@ -179,6 +179,14 @@ pub struct DownloadPersistentCacheTaskRequest {
     /// For more details refer to <https://github.com/dragonflyoss/design/blob/main/systems-analysis/file-download-workflow-with-hard-link/README.md.>
     #[prost(bool, tag = "8")]
     pub force_hard_link: bool,
+    /// Verifies task data integrity after download using a digest. Supports CRC32, SHA256, and SHA512 algorithms.
+    /// Format: `<algorithm>:<hash>`, e.g., `crc32:xxx`, `sha256:yyy`, `sha512:zzz`.
+    /// Returns an error if the computed digest mismatches the expected value.
+    ///
+    /// Performance
+    /// Digest calculation increases processing time. Enable only when data integrity verification is critical.
+    #[prost(string, optional, tag = "9")]
+    pub digest: ::core::option::Option<::prost::alloc::string::String>,
 }
 /// DownloadPersistentCacheTaskStartedResponse represents task download started response of DownloadPersistentCacheTaskResponse.
 #[derive(serde::Serialize, serde::Deserialize)]