diff --git a/Cargo.toml b/Cargo.toml
index a2143df..582361b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -41,15 +41,15 @@ base64 = "0.13"
 hex = "0.4"
 sha2 = "0.10"
 argon2 = "0.3"
-blake3 = "1.2"
+blake3 = "1.3"
 bincode = "1.3"
 aes-gcm = "0.9"
 sysinfo = "0.21"
 serde = { version = "1", features = ["derive"] }
 tokio = { version = "1", features = ["full"] }
 web3 = { version = "0.17", default-features = false, features = ["http-tls", "signing"] }
-tdn = { version = "0.6", default-features = false, features = ["full"] }
-tdn_did = { version = "0.6" }
+tdn = { version = "0.7", default-features = false, features = ["full"] }
+tdn_did = { version = "0.7" }
 tdn_storage = { git = "https://github.com/cympletech/tdn", branch="main" }
 chat_types = { version = "0.1", path = "./types/chat" }
 group_types = { version = "0.1", path = "./types/group" }
@@ -62,3 +62,10 @@ openssl = { version = "0.10", features = ["vendored"] } # Add for cross-compile.
 
 [target.'cfg(target_os="android")'.dependencies]
 jni = { version = "0.19", default-features = false }
+
+
+# DEBUG patch.
+[patch.crates-io]
+tdn = { git = "https://github.com/cympletech/tdn" }
+tdn_types = { git = "https://github.com/cympletech/tdn" }
+tdn_did = { git = "https://github.com/cympletech/tdn" }
diff --git a/types/README.md b/types/README.md
index 2001082..df998c4 100644
--- a/types/README.md
+++ b/types/README.md
@@ -2,6 +2,14 @@
 
 ESSE bulit-in app open types.
 
+### Default GROUP_ID
+- 0 - Own distributed devices.
+- 1 - Chat.
+- 2 - Group Chat.
+- 3 - DAO.
+- 4 - Domain.
+- 5 - Cloud.
+
 ### Open Apps
 - Group Chat
 - Domain
diff --git a/types/chat/Cargo.toml b/types/chat/Cargo.toml
index bbd1e6f..bc0ffe6 100644
--- a/types/chat/Cargo.toml
+++ b/types/chat/Cargo.toml
@@ -11,4 +11,4 @@ license = "MIT/Apache-2.0"
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-tdn_types = { version = "0.6", default-features = false }
\ No newline at end of file
+tdn_types = { version = "0.7", default-features = false }
\ No newline at end of file
diff --git a/types/chat/src/lib.rs b/types/chat/src/lib.rs
index 06939b0..4e72e3e 100644
--- a/types/chat/src/lib.rs
+++ b/types/chat/src/lib.rs
@@ -1,14 +1,18 @@
 use serde::{Deserialize, Serialize};
-use tdn_types::{group::GroupId, primitive::PeerId};
+use tdn_types::{group::GroupId, primitives::PeerId};
+
+/// Chat service default TDN GROUP ID.
+#[rustfmt::skip]
+pub const CHAT_ID: GroupId = 1;
 
 /// message type use in network.
 #[derive(Serialize, Deserialize, Clone)]
 pub enum NetworkMessage {
-    String(String),                            // content
-    Image(Vec<u8>),                            // image bytes.
-    File(String, Vec<u8>),                     // filename, file bytes.
-    Contact(String, GroupId, PeerId, Vec<u8>), // name, gid, addr, avatar bytes.
-    Record(Vec<u8>, u32),                      // record audio bytes.
+    String(String),                   // content
+    Image(Vec<u8>),                   // image bytes.
+    File(String, Vec<u8>),            // filename, file bytes.
+    Contact(PeerId, String, Vec<u8>), // PeerId, name, avatar bytes.
+    Record(Vec<u8>, u32),             // record audio bytes.
     Emoji,
     Phone,
     Video,
diff --git a/types/cloud/Cargo.toml b/types/cloud/Cargo.toml
index e94f071..403599c 100644
--- a/types/cloud/Cargo.toml
+++ b/types/cloud/Cargo.toml
@@ -11,5 +11,5 @@ license = "MIT/Apache-2.0"
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-tdn_types = { version = "0.6", default-features = false }
-tdn_did = { version = "0.6", default-features = false }
+tdn_types = { version = "0.7", default-features = false }
+tdn_did = { version = "0.7", default-features = false }
diff --git a/types/cloud/src/lib.rs b/types/cloud/src/lib.rs
index 7c03db5..5f4e037 100644
--- a/types/cloud/src/lib.rs
+++ b/types/cloud/src/lib.rs
@@ -3,13 +3,7 @@ use tdn_did::Proof;
 use tdn_types::group::GroupId;
 
 /// Personal data cloud service default TDN GROUP ID.
-#[rustfmt::skip]
-pub const CLOUD_ID: GroupId = GroupId([
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 5,
-]);
+pub const CLOUD_ID: GroupId = 5;
 
 /// ESSE service to peer layer Event.
 #[derive(Serialize, Deserialize)]
diff --git a/types/dao/Cargo.toml b/types/dao/Cargo.toml
index 869e847..e3ff05a 100644
--- a/types/dao/Cargo.toml
+++ b/types/dao/Cargo.toml
@@ -12,5 +12,5 @@ license = "MIT/Apache-2.0"
 [dependencies]
 chat_types = { path = "../chat", version = "0.1" }
 serde = { version = "1", features = ["derive"] }
-tdn_types = { version = "0.6", default-features = false }
-tdn_did = { version = "0.6", default-features = false }
+tdn_types = { version = "0.7", default-features = false }
+tdn_did = { version = "0.7", default-features = false }
diff --git a/types/dao/src/lib.rs b/types/dao/src/lib.rs
index efb0758..970fd3b 100644
--- a/types/dao/src/lib.rs
+++ b/types/dao/src/lib.rs
@@ -1,17 +1,14 @@
 use serde::{Deserialize, Serialize};
 use tdn_did::Proof;
-use tdn_types::{group::GroupId, primitive::PeerId};
+use tdn_types::{group::GroupId, primitives::PeerId};
 
 use chat_types::NetworkMessage;
 
 /// Dao app(service) default TDN GROUP ID.
-#[rustfmt::skip]
-pub const DAO_ID: GroupId = GroupId([
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 3,
-]);
+pub const DAO_ID: GroupId = 3;
+
+/// Dao ID type.
+pub type DaoId = u64;
 
 /// Group chat types. include: Encrypted, Private, Open.
 #[derive(Serialize, Deserialize, Clone, Copy, Debug, Eq, PartialEq)]
@@ -54,10 +51,10 @@ pub enum DaoInfo {
     /// params: owner, owner_name, owner_avatar, Group ID, group_type, is_must_agree_by_manager,
     /// group_name, group_bio, group_avatar.
     Common(
-        GroupId,
+        PeerId,
         String,
         Vec<u8>,
-        GroupId,
+        DaoId,
         GroupType,
         bool,
         String,
@@ -67,10 +64,10 @@ pub enum DaoInfo {
     /// params: owner, owner_name, owner_avatar, Group ID, is_must_agree_by_manager, key_hash,
     /// group_name(bytes), group_bio(bytes), group_avatar(bytes).
     Encrypted(
-        GroupId,
+        PeerId,
         String,
         Vec<u8>,
-        GroupId,
+        DaoId,
         bool,
         Vec<u8>,
         Vec<u8>,
@@ -82,12 +79,12 @@ pub enum DaoInfo {
 /// Dao chat connect data structure.
 /// params: Group ID, join_proof.
 #[derive(Serialize, Deserialize)]
-pub struct LayerConnect(pub GroupId, pub ConnectProof);
+pub struct LayerConnect(pub DaoId, pub ConnectProof);
 
 /// Dao chat connect success result data structure.
 /// params: Group ID, group current height.
 #[derive(Serialize, Deserialize)]
-pub struct LayerResult(pub GroupId, pub i64);
+pub struct LayerResult(pub DaoId, pub i64);
 
 /// Dao chat connect proof.
 #[derive(Serialize, Deserialize)]
@@ -108,7 +105,7 @@ pub enum JoinProof {
     Open(String, Vec<u8>),
     /// when is invate, it will take group_manager's proof for invate.
     /// params: invite_by_account, invite_proof, member name, member avatar.
-    Invite(GroupId, Proof, String, Vec<u8>),
+    Invite(PeerId, Proof, String, Vec<u8>),
     /// zero-knowledge-proof. not has account id.
     /// verify(proof, key_hash, current_peer_addr).
     Zkp(Proof), // TODO MOCK-PROOF
@@ -142,11 +139,11 @@ impl CheckType {
 #[derive(Serialize, Deserialize)]
 pub enum LayerEvent {
     /// offline. as BaseLayerEvent.
-    Offline(GroupId),
+    Offline(DaoId),
     /// suspend. as BaseLayerEvent.
-    Suspend(GroupId),
+    Suspend(DaoId),
     /// actived. as BaseLayerEvent.
-    Actived(GroupId),
+    Actived(DaoId),
     /// check if account has permission to create group, and supported group types.
     Check,
     /// result check.
@@ -157,36 +154,36 @@ pub enum LayerEvent {
     Create(DaoInfo, Proof),
     /// result create group success.
     /// params: Group ID, is_ok.
-    CreateResult(GroupId, bool),
+    CreateResult(DaoId, bool),
     /// join group request. Group ID, Join Proof and info, request db id.
-    Request(GroupId, JoinProof),
+    Request(DaoId, JoinProof),
     /// request need manager to handle.
-    RequestHandle(GroupId, GroupId, PeerId, JoinProof, i64, i64),
+    RequestHandle(DaoId, PeerId, JoinProof, i64, i64),
     /// manager handle request result. Group ID, request db id, is ok.
-    RequestResult(GroupId, i64, bool),
+    RequestResult(DaoId, i64, bool),
     /// agree join request.
-    Agree(GroupId, DaoInfo),
+    Agree(DaoId, DaoInfo),
     /// reject join request. Group ID, if lost efficacy.
-    Reject(GroupId, bool),
-    /// online group member. Group ID, member id, member address.
-    MemberOnline(GroupId, GroupId, PeerId),
+    Reject(DaoId, bool),
+    /// online group member. Group ID, member id.
+    MemberOnline(DaoId, PeerId),
     /// offline group member. Group ID, member id.
-    MemberOffline(GroupId, GroupId),
+    MemberOffline(DaoId, PeerId),
     /// sync online members.
-    MemberOnlineSync(GroupId),
+    MemberOnlineSync(DaoId),
     /// sync online members result.
-    MemberOnlineSyncResult(GroupId, Vec<(GroupId, PeerId)>),
+    MemberOnlineSyncResult(DaoId, Vec<PeerId>),
     /// sync group event. Group ID, height, event.
-    Sync(GroupId, i64, Event),
+    Sync(DaoId, i64, Event),
     /// packed sync event request. Group ID, from.
-    SyncReq(GroupId, i64),
+    SyncReq(DaoId, i64),
     /// packed sync event. Group ID, current height, from height, to height, packed events.
-    Packed(GroupId, i64, i64, i64, Vec<PackedEvent>),
+    Packed(DaoId, i64, i64, i64, Vec<PackedEvent>),
 }
 
 impl LayerEvent {
     /// get event's group id.
-    pub fn gcd(&self) -> Option<&GroupId> {
+    pub fn gcd(&self) -> Option<&DaoId> {
         match self {
             Self::Offline(gcd) => Some(gcd),
             Self::Suspend(gcd) => Some(gcd),
@@ -238,14 +235,14 @@ pub enum PackedEvent {
     GroupManagerAdd,
     GroupManagerDel,
     GroupClose,
-    /// params: member id, member address, member name, member avatar.
-    MemberInfo(GroupId, PeerId, String, Vec<u8>),
-    /// params: member id, member address, member name, member avatar, member join time.
-    MemberJoin(GroupId, PeerId, String, Vec<u8>, i64),
+    /// params: member id, member name, member avatar.
+    MemberInfo(PeerId, String, Vec<u8>),
+    /// params: member id, member name, member avatar, member join time.
+    MemberJoin(PeerId, String, Vec<u8>, i64),
     /// params: member id,
-    MemberLeave(GroupId),
+    MemberLeave(PeerId),
     /// params: member id, message, message time.
-    MessageCreate(GroupId, NetworkMessage, i64),
+    MessageCreate(PeerId, NetworkMessage, i64),
     /// had in before.
     None,
 }
@@ -258,12 +255,12 @@ pub enum Event {
     GroupManagerAdd,
     GroupManagerDel,
     GroupClose,
-    /// params: member id, member address, member name, member avatar.
-    MemberInfo(GroupId, PeerId, String, Vec<u8>),
-    /// params: member id, member address, member name, member avatar, member join time.
-    MemberJoin(GroupId, PeerId, String, Vec<u8>, i64),
+    /// params: member id, member name, member avatar.
+    MemberInfo(PeerId, String, Vec<u8>),
+    /// params: member id, member name, member avatar, member join time.
+    MemberJoin(PeerId, String, Vec<u8>, i64),
     /// params: member id,
-    MemberLeave(GroupId),
+    MemberLeave(PeerId),
     /// params: member id, message, height.
-    MessageCreate(GroupId, NetworkMessage, i64),
+    MessageCreate(PeerId, NetworkMessage, i64),
 }
diff --git a/types/data/Cargo.toml b/types/data/Cargo.toml
index 7477206..5d4fe1b 100644
--- a/types/data/Cargo.toml
+++ b/types/data/Cargo.toml
@@ -14,5 +14,5 @@ default = ["tdn"]
 tdn = ["tdn_did", "tdn_types"]
 
 [dependencies]
-tdn_did = { version = "0.6", default-features = false, optional = true }
-tdn_types = { version = "0.6", default-features = false, optional = true }
+tdn_did = { version = "0.7", default-features = false, optional = true }
+tdn_types = { version = "0.7", default-features = false, optional = true }
diff --git a/types/data/src/lib.rs b/types/data/src/lib.rs
index fffd072..4c99b75 100644
--- a/types/data/src/lib.rs
+++ b/types/data/src/lib.rs
@@ -101,5 +101,5 @@ impl<T: OwnerId> Data<T> {
     }
 }
 
-#[cfg(feature = "tdn")]
-pub mod tdn;
+//#[cfg(feature = "tdn")]
+//pub mod tdn;
diff --git a/types/data/src/tdn.rs b/types/data/src/tdn.rs
index 699a48d..158e0da 100644
--- a/types/data/src/tdn.rs
+++ b/types/data/src/tdn.rs
@@ -1,5 +1,5 @@
 use tdn_did::{Proof, PROOF_LENGTH};
-use tdn_types::group::{GroupId, GROUP_LENGTH};
+use tdn_types::group::{GroupId, GROUP_BYTES_LENGTH};
 
 use crate::{Data, OwnerId};
 
diff --git a/types/domain/Cargo.toml b/types/domain/Cargo.toml
index ba723fc..d5548a4 100644
--- a/types/domain/Cargo.toml
+++ b/types/domain/Cargo.toml
@@ -11,5 +11,5 @@ license = "MIT/Apache-2.0"
 
 [dependencies]
 serde = { version = "1", features = ["derive"] }
-tdn_types = { version = "0.6", default-features = false }
-tdn_did = { version = "0.6", default-features = false }
+tdn_types = { version = "0.7", default-features = false }
+tdn_did = { version = "0.7", default-features = false }
diff --git a/types/domain/src/lib.rs b/types/domain/src/lib.rs
index ce6f9e9..473770b 100644
--- a/types/domain/src/lib.rs
+++ b/types/domain/src/lib.rs
@@ -1,17 +1,11 @@
 use serde::{Deserialize, Serialize};
 use tdn_did::Proof;
-use tdn_types::{group::GroupId, primitive::PeerId};
+use tdn_types::{group::GroupId, primitives::PeerId};
 
 // Same ID can has many name !.
 
 /// Group chat app(service) default TDN GROUP ID.
-#[rustfmt::skip]
-pub const DOMAIN_ID: GroupId = GroupId([
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 4,
-]);
+pub const DOMAIN_ID: GroupId = 4;
 
 /// ESSE domain service layer Event.
 #[derive(Serialize, Deserialize)]
@@ -31,8 +25,8 @@ pub enum ServerEvent {
     /// params: name, is_ok.
     Result(String, bool),
     /// a identity info.
-    /// params: user_name, user_ID, user_address, user_bio, user_avatar.
-    Info(String, GroupId, PeerId, String, Vec<u8>),
+    /// params: user_id, user_name, user_bio, user_avatar.
+    Info(PeerId, String, String, Vec<u8>),
     /// not found a user by name.
     None(String),
     /// current name is active.
@@ -42,8 +36,8 @@ pub enum ServerEvent {
     /// params: name.
     Deleted(String),
     /// response the make friend.
-    /// params: remote_ID, name, is_ok.
-    Response(GroupId, String, bool),
+    /// params: remote_id, name, is_ok.
+    Response(PeerId, String, bool),
 }
 
 /// ESSE domain peer to service layer Event.
diff --git a/types/group/Cargo.toml b/types/group/Cargo.toml
index 8afc51a..a93cbe0 100644
--- a/types/group/Cargo.toml
+++ b/types/group/Cargo.toml
@@ -12,5 +12,5 @@ license = "MIT/Apache-2.0"
 [dependencies]
 chat_types = { path = "../chat", version = "0.1" }
 serde = { version = "1", features = ["derive"] }
-tdn_types = { version = "0.6", default-features = false }
-tdn_did = { version = "0.6", default-features = false }
+tdn_types = { version = "0.7", default-features = false }
+tdn_did = { version = "0.7", default-features = false }
diff --git a/types/group/src/lib.rs b/types/group/src/lib.rs
index 451f5c2..bd6250e 100644
--- a/types/group/src/lib.rs
+++ b/types/group/src/lib.rs
@@ -1,72 +1,69 @@
 use serde::{Deserialize, Serialize};
 use tdn_did::Proof;
-use tdn_types::{group::GroupId, primitive::PeerId};
+use tdn_types::{group::GroupId, primitives::PeerId};
 
 use chat_types::NetworkMessage;
 
 /// Group chat app(service) default TDN GROUP ID.
-#[rustfmt::skip]
-pub const GROUP_CHAT_ID: GroupId = GroupId([
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 0, 2,
-]);
+pub const GROUP_CHAT_ID: GroupId = 2;
+
+/// Group chat Group ID.
+pub type GroupChatId = u64;
 
 /// Group chat connect data structure.
-/// params: Group ID, join_proof.
+/// params: Group Chat ID, join_proof.
 #[derive(Serialize, Deserialize)]
-pub struct LayerConnect(pub GroupId, pub Proof);
+pub struct LayerConnect(pub GroupChatId, pub Proof);
 
 /// Group chat connect success result data structure.
 /// params: Group ID, group name, group current height.
 #[derive(Serialize, Deserialize)]
-pub struct LayerResult(pub GroupId, pub String, pub i64);
+pub struct LayerResult(pub GroupChatId, pub String, pub i64);
 
 /// ESSE Group chat app's layer Event.
 #[derive(Serialize, Deserialize)]
 pub enum LayerEvent {
     /// offline. as BaseLayerEvent.
-    Offline(GroupId),
+    Offline(GroupChatId),
     /// suspend. as BaseLayerEvent.
-    Suspend(GroupId),
+    Suspend(GroupChatId),
     /// actived. as BaseLayerEvent.
-    Actived(GroupId),
-    /// online group member. Group ID, member id, member address.
-    MemberOnline(GroupId, GroupId, PeerId),
+    Actived(GroupChatId),
+    /// online group member. Group ID, member id.
+    MemberOnline(GroupChatId, PeerId),
     /// offline group member. Group ID, member id.
-    MemberOffline(GroupId, GroupId),
+    MemberOffline(GroupChatId, PeerId),
     /// sync online members.
-    MemberOnlineSync(GroupId),
+    MemberOnlineSync(GroupChatId),
     /// sync online members result.
-    MemberOnlineSyncResult(GroupId, Vec<(GroupId, PeerId)>),
+    MemberOnlineSyncResult(GroupChatId, Vec<PeerId>),
     /// Change the group name.
-    GroupName(GroupId, String),
+    GroupName(GroupChatId, String),
     /// close the group chat.
-    GroupClose(GroupId),
+    GroupClose(GroupChatId),
     /// sync group event. Group ID, height, event.
-    Sync(GroupId, i64, Event),
+    Sync(GroupChatId, i64, Event),
     /// peer sync event request. Group ID, from.
-    SyncReq(GroupId, i64),
+    SyncReq(GroupChatId, i64),
     /// sync members status.
     /// Group ID, current height, from height, to height,
     /// add members(height, member id, addr, name, avatar),
     /// leaved members(height, member id),
     /// add messages(height, member id, message, time).
     SyncRes(
-        GroupId,
+        GroupChatId,
         i64,
         i64,
         i64,
-        Vec<(i64, GroupId, PeerId, String, Vec<u8>)>,
-        Vec<(i64, GroupId)>,
-        Vec<(i64, GroupId, NetworkMessage, i64)>,
+        Vec<(i64, PeerId, String, Vec<u8>)>,
+        Vec<(i64, PeerId)>,
+        Vec<(i64, PeerId, NetworkMessage, i64)>,
     ),
 }
 
 impl LayerEvent {
     /// get event's group id.
-    pub fn gcd(&self) -> &GroupId {
+    pub fn gcd(&self) -> &GroupChatId {
         match self {
             Self::Offline(gcd) => gcd,
             Self::Suspend(gcd) => gcd,
@@ -87,10 +84,10 @@ impl LayerEvent {
 /// Group chat event.
 #[derive(Serialize, Deserialize, Clone)]
 pub enum Event {
-    /// params: member id, member address, member name, member avatar.
-    MemberJoin(GroupId, PeerId, String, Vec<u8>),
+    /// params: member id, member name, member avatar.
+    MemberJoin(PeerId, String, Vec<u8>),
     /// params: member id,
-    MemberLeave(GroupId),
+    MemberLeave(PeerId),
     /// params: member id, message, message time.
-    MessageCreate(GroupId, NetworkMessage, i64),
+    MessageCreate(PeerId, NetworkMessage, i64),
 }
diff --git a/types/primitives/Cargo.toml b/types/primitives/Cargo.toml
index ba8b186..0010f38 100644
--- a/types/primitives/Cargo.toml
+++ b/types/primitives/Cargo.toml
@@ -10,5 +10,4 @@ keywords = ["distributed", "p2p", "did", "ESSE"]
 license = "MIT/Apache-2.0"
 
 [dependencies]
-blake3 = "1.3"
-tdn_types = { version = "0.6", default-features = false }
\ No newline at end of file
+tdn_types = { version = "0.7", default-features = false }
\ No newline at end of file
diff --git a/types/primitives/src/lib.rs b/types/primitives/src/lib.rs
index 1b77202..0209250 100644
--- a/types/primitives/src/lib.rs
+++ b/types/primitives/src/lib.rs
@@ -75,7 +75,18 @@ pub mod bs32 {
     }
 }
 
-pub fn id(peer: &tdn_types::primitive::PeerId) -> String {
-    let hash = blake3::hash(&peer.0);
-    bs32::encode(&hash.as_bytes()[0..30])
+use tdn_types::primitives::{new_io_error, PeerId, PEER_ID_LENGTH};
+
+pub fn id_to_string(peer: &PeerId) -> String {
+    bs32::encode(&peer.0)
+}
+
+pub fn id_from_string(s: &str) -> std::io::Result<PeerId> {
+    let data = bs32::decode(s).ok_or(new_io_error("id from string is failure."))?;
+    if data.len() != PEER_ID_LENGTH {
+        return Err(new_io_error("id from string is failure."));
+    }
+    let mut bytes = [0u8; PEER_ID_LENGTH];
+    bytes.copy_from_slice(&data);
+    Ok(PeerId(bytes))
 }