diff --git a/src/identity/did.rs b/mitra-utils/src/did.rs
similarity index 100%
rename from src/identity/did.rs
rename to mitra-utils/src/did.rs
diff --git a/src/identity/did_key.rs b/mitra-utils/src/did_key.rs
similarity index 94%
rename from src/identity/did_key.rs
rename to mitra-utils/src/did_key.rs
index 22642df..b679943 100644
--- a/src/identity/did_key.rs
+++ b/mitra-utils/src/did_key.rs
@@ -4,13 +4,14 @@ use std::str::FromStr;
 
 use regex::Regex;
 
-use mitra_utils::multibase::{
-    decode_multibase_base58btc,
-    encode_multibase_base58btc,
+use super::{
+    did::DidParseError,
+    multibase::{
+        decode_multibase_base58btc,
+        encode_multibase_base58btc,
+    },
 };
 
-use super::did::DidParseError;
-
 const DID_KEY_RE: &str = r"did:key:(?P<key>z[a-km-zA-HJ-NP-Z1-9]+)";
 
 // https://github.com/multiformats/multicodec
diff --git a/src/identity/did_pkh.rs b/mitra-utils/src/did_pkh.rs
similarity index 97%
rename from src/identity/did_pkh.rs
rename to mitra-utils/src/did_pkh.rs
index ea0b496..a9d4718 100644
--- a/src/identity/did_pkh.rs
+++ b/mitra-utils/src/did_pkh.rs
@@ -4,13 +4,12 @@ use std::str::FromStr;
 
 use regex::Regex;
 
-use mitra_utils::{
+use super::{
     caip2::ChainId,
     currencies::Currency,
+    did::DidParseError,
 };
 
-use super::did::DidParseError;
-
 // https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-10.md#syntax
 const DID_PKH_RE: &str = r"did:pkh:(?P<network>[-a-z0-9]{3,8}):(?P<chain>[-a-zA-Z0-9]{1,32}):(?P<address>[a-zA-Z0-9]{1,64})";
 
diff --git a/mitra-utils/src/lib.rs b/mitra-utils/src/lib.rs
index 999af7f..8a02247 100644
--- a/mitra-utils/src/lib.rs
+++ b/mitra-utils/src/lib.rs
@@ -3,6 +3,9 @@ pub mod canonicalization;
 pub mod crypto_rsa;
 pub mod currencies;
 pub mod datetime;
+pub mod did;
+pub mod did_key;
+pub mod did_pkh;
 pub mod files;
 pub mod html;
 pub mod id;
diff --git a/src/activitypub/actors/attachments.rs b/src/activitypub/actors/attachments.rs
index 9045ec3..54531ea 100644
--- a/src/activitypub/actors/attachments.rs
+++ b/src/activitypub/actors/attachments.rs
@@ -1,5 +1,7 @@
 use uuid::Uuid;
 
+use mitra_utils::did::Did;
+
 use crate::activitypub::vocabulary::{
     IDENTITY_PROOF,
     LINK,
@@ -9,7 +11,6 @@ use crate::errors::ValidationError;
 use crate::ethereum::identity::verify_eip191_signature;
 use crate::identity::{
     claims::create_identity_claim,
-    did::Did,
     minisign::{
         parse_minisign_signature,
         verify_minisign_signature,
diff --git a/src/activitypub/authentication.rs b/src/activitypub/authentication.rs
index 1e3ebe1..5e0ac8d 100644
--- a/src/activitypub/authentication.rs
+++ b/src/activitypub/authentication.rs
@@ -2,7 +2,10 @@ use actix_web::HttpRequest;
 use serde_json::Value;
 
 use mitra_config::Config;
-use mitra_utils::crypto_rsa::deserialize_public_key;
+use mitra_utils::{
+    crypto_rsa::deserialize_public_key,
+    did::Did,
+};
 
 use crate::database::{DatabaseClient, DatabaseError};
 use crate::http_signatures::verify::{
@@ -10,7 +13,6 @@ use crate::http_signatures::verify::{
     verify_http_signature,
     HttpSignatureVerificationError as HttpSignatureError,
 };
-use crate::identity::did::Did;
 use crate::json_signatures::{
     proofs::ProofType,
     verify::{
diff --git a/src/ethereum/identity.rs b/src/ethereum/identity.rs
index 37d0e33..4e044d0 100644
--- a/src/ethereum/identity.rs
+++ b/src/ethereum/identity.rs
@@ -1,4 +1,5 @@
-use crate::identity::did_pkh::DidPkh;
+use mitra_utils::did_pkh::DidPkh;
+
 use super::signatures::{recover_address, SignatureError};
 use super::utils::address_to_string;
 
diff --git a/src/identity/claims.rs b/src/identity/claims.rs
index 56d1aa0..e15a555 100644
--- a/src/identity/claims.rs
+++ b/src/identity/claims.rs
@@ -1,12 +1,13 @@
 use serde::Serialize;
 
-use mitra_utils::canonicalization::{
-    canonicalize_object,
-    CanonicalizationError,
+use mitra_utils::{
+    canonicalization::{
+        canonicalize_object,
+        CanonicalizationError,
+    },
+    did::Did,
 };
 
-use super::did::Did;
-
 // https://www.w3.org/TR/vc-data-model/#credential-subject
 #[derive(Serialize)]
 #[serde(rename_all = "camelCase")]
@@ -30,8 +31,10 @@ pub fn create_identity_claim(
 
 #[cfg(test)]
 mod tests {
-    use mitra_utils::currencies::Currency;
-    use crate::identity::did_pkh::DidPkh;
+    use mitra_utils::{
+        currencies::Currency,
+        did_pkh::DidPkh,
+    };
     use super::*;
 
     #[test]
diff --git a/src/identity/minisign.rs b/src/identity/minisign.rs
index e3506ca..8af3a19 100644
--- a/src/identity/minisign.rs
+++ b/src/identity/minisign.rs
@@ -7,7 +7,7 @@ use ed25519_dalek::{
     Verifier,
 };
 
-use super::did_key::{DidKey, MulticodecError};
+use mitra_utils::did_key::{DidKey, MulticodecError};
 
 const MINISIGN_SIGNATURE_CODE: [u8; 2] = *b"Ed";
 const MINISIGN_SIGNATURE_HASHED_CODE: [u8; 2] = *b"ED";
diff --git a/src/identity/mod.rs b/src/identity/mod.rs
index 92b71c9..d608132 100644
--- a/src/identity/mod.rs
+++ b/src/identity/mod.rs
@@ -1,5 +1,2 @@
 pub mod claims;
-pub mod did;
-pub mod did_key;
-pub mod did_pkh;
 pub mod minisign;
diff --git a/src/json_signatures/create.rs b/src/json_signatures/create.rs
index 49a29bd..4a010f4 100644
--- a/src/json_signatures/create.rs
+++ b/src/json_signatures/create.rs
@@ -9,13 +9,11 @@ use mitra_utils::{
         CanonicalizationError,
     },
     crypto_rsa::create_rsa_signature,
+    did_key::DidKey,
+    did_pkh::DidPkh,
     multibase::encode_multibase_base58btc,
 };
 
-use crate::identity::{
-    did_key::DidKey,
-    did_pkh::DidPkh,
-};
 use super::proofs::{
     PROOF_TYPE_JCS_ED25519,
     PROOF_TYPE_JCS_EIP191,
diff --git a/src/json_signatures/verify.rs b/src/json_signatures/verify.rs
index d840fd8..d7f73b9 100644
--- a/src/json_signatures/verify.rs
+++ b/src/json_signatures/verify.rs
@@ -10,14 +10,14 @@ use mitra_utils::{
         CanonicalizationError,
     },
     crypto_rsa::verify_rsa_signature,
+    did::Did,
+    did_key::DidKey,
+    did_pkh::DidPkh,
     multibase::{decode_multibase_base58btc, MultibaseError},
 };
 
 use crate::ethereum::identity::verify_eip191_signature;
 use crate::identity::{
-    did::Did,
-    did_key::DidKey,
-    did_pkh::DidPkh,
     minisign::verify_minisign_signature,
 };
 use super::create::{
diff --git a/src/mastodon_api/accounts/types.rs b/src/mastodon_api/accounts/types.rs
index ee6daf3..225a025 100644
--- a/src/mastodon_api/accounts/types.rs
+++ b/src/mastodon_api/accounts/types.rs
@@ -4,11 +4,13 @@ use chrono::{DateTime, Utc};
 use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
-use mitra_utils::markdown::markdown_basic_to_html;
+use mitra_utils::{
+    did::Did,
+    markdown::markdown_basic_to_html,
+};
 
 use crate::activitypub::actors::helpers::ACTOR_IMAGE_MAX_SIZE;
 use crate::errors::ValidationError;
-use crate::identity::did::Did;
 use crate::mastodon_api::{
     custom_emojis::types::CustomEmoji,
     errors::MastodonError,
diff --git a/src/mastodon_api/accounts/views.rs b/src/mastodon_api/accounts/views.rs
index 35a7937..bd59aba 100644
--- a/src/mastodon_api/accounts/views.rs
+++ b/src/mastodon_api/accounts/views.rs
@@ -20,6 +20,8 @@ use mitra_utils::{
         serialize_private_key,
     },
     currencies::Currency,
+    did::Did,
+    did_pkh::DidPkh,
     id::generate_ulid,
     passwords::hash_password,
 };
@@ -42,8 +44,6 @@ use crate::ethereum::{
 use crate::http::get_request_base_url;
 use crate::identity::{
     claims::create_identity_claim,
-    did::Did,
-    did_pkh::DidPkh,
     minisign::{
         minisign_key_to_did,
         parse_minisign_signature,
diff --git a/src/mastodon_api/search/helpers.rs b/src/mastodon_api/search/helpers.rs
index a9b7e5a..957c3c4 100644
--- a/src/mastodon_api/search/helpers.rs
+++ b/src/mastodon_api/search/helpers.rs
@@ -4,7 +4,10 @@ use regex::Regex;
 use url::Url;
 
 use mitra_config::Config;
-use mitra_utils::currencies::Currency;
+use mitra_utils::{
+    currencies::Currency,
+    did::Did,
+};
 
 use crate::activitypub::{
     fetcher::helpers::{
@@ -18,7 +21,6 @@ use crate::activitypub::{
 use crate::database::{DatabaseClient, DatabaseError};
 use crate::errors::ValidationError;
 use crate::ethereum::utils::validate_ethereum_address;
-use crate::identity::did::Did;
 use crate::models::{
     posts::{
         helpers::{can_view_post, get_local_post_by_id},
diff --git a/src/models/profiles/queries.rs b/src/models/profiles/queries.rs
index fc0ceed..c20cfe7 100644
--- a/src/models/profiles/queries.rs
+++ b/src/models/profiles/queries.rs
@@ -3,6 +3,8 @@ use uuid::Uuid;
 
 use mitra_utils::{
     currencies::Currency,
+    did::Did,
+    did_pkh::DidPkh,
     id::generate_ulid,
 };
 
@@ -12,7 +14,6 @@ use crate::database::{
     DatabaseClient,
     DatabaseError,
 };
-use crate::identity::{did::Did, did_pkh::DidPkh};
 use crate::models::{
     cleanup::{
         find_orphaned_files,
diff --git a/src/models/profiles/types.rs b/src/models/profiles/types.rs
index 1c6813c..409a562 100644
--- a/src/models/profiles/types.rs
+++ b/src/models/profiles/types.rs
@@ -8,7 +8,10 @@ use serde::{
 };
 use uuid::Uuid;
 
-use mitra_utils::caip2::ChainId;
+use mitra_utils::{
+    caip2::ChainId,
+    did::Did,
+};
 
 use crate::activitypub::{
     actors::types::Actor,
@@ -19,7 +22,6 @@ use crate::database::{
     DatabaseTypeError,
 };
 use crate::errors::ValidationError;
-use crate::identity::did::Did;
 use crate::models::emojis::types::DbEmoji;
 use crate::webfinger::types::ActorAddress;
 use super::validators::{
diff --git a/src/models/users/queries.rs b/src/models/users/queries.rs
index e5ea17f..27a4836 100644
--- a/src/models/users/queries.rs
+++ b/src/models/users/queries.rs
@@ -1,13 +1,16 @@
 use uuid::Uuid;
 
-use mitra_utils::currencies::Currency;
+use mitra_utils::{
+    currencies::Currency,
+    did::Did,
+    did_pkh::DidPkh,
+};
 
 use crate::database::{
     catch_unique_violation,
     DatabaseClient,
     DatabaseError,
 };
-use crate::identity::{did::Did, did_pkh::DidPkh};
 use crate::models::{
     profiles::queries::create_profile,
     profiles::types::{DbActorProfile, ProfileCreateData},
diff --git a/src/models/users/types.rs b/src/models/users/types.rs
index 89160bf..774d6ff 100644
--- a/src/models/users/types.rs
+++ b/src/models/users/types.rs
@@ -3,14 +3,16 @@ use postgres_types::FromSql;
 use regex::Regex;
 use uuid::Uuid;
 
-use mitra_utils::currencies::Currency;
+use mitra_utils::{
+    currencies::Currency,
+    did::Did,
+};
 
 use crate::database::{
     int_enum::{int_enum_from_sql, int_enum_to_sql},
     DatabaseTypeError,
 };
 use crate::errors::ValidationError;
-use crate::identity::did::Did;
 use crate::models::profiles::types::DbActorProfile;
 
 #[allow(dead_code)]