diff --git a/src/ethereum/identity.rs b/src/ethereum/identity.rs
index 5db515a..3049d11 100644
--- a/src/ethereum/identity.rs
+++ b/src/ethereum/identity.rs
@@ -7,6 +7,7 @@ use serde::{
 };
 
 use crate::errors::ValidationError;
+use crate::models::profiles::currencies::Currency;
 use super::signatures::recover_address;
 use super::utils::address_to_string;
 
@@ -22,14 +23,10 @@ pub struct DidPkh {
 }
 
 impl DidPkh {
-    pub fn from_ethereum_address(address: &str) -> Self {
-        // Ethereum mainnet
-        // https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-3.md
-        Self {
-            network_id: "eip155".to_string(),
-            chain_id: "1".to_string(),
-            address: address.to_lowercase(),
-        }
+    pub fn from_address(currency: &Currency, address: &str) -> Self {
+        let (network_id, chain_id) = currency.caip2();
+        let address = currency.normalize_address(address);
+        Self { network_id, chain_id, address }
     }
 }
 
@@ -133,10 +130,12 @@ mod tests {
     use crate::ethereum::utils::address_to_string;
     use super::*;
 
+    const ETHEREUM: Currency = Currency::Ethereum;
+
     #[test]
     fn test_did_string_conversion() {
         let address = "0xB9C5714089478a327F09197987f16f9E5d936E8a";
-        let did = DidPkh::from_ethereum_address(address);
+        let did = DidPkh::from_address(&ETHEREUM, address);
         assert_eq!(did.address, address.to_lowercase());
 
         let did_str = did.to_string();
@@ -156,7 +155,7 @@ mod tests {
         let secret_key_ref = SecretKeyRef::new(&secret_key);
         let secret_key_str = secret_key.display_secret().to_string();
         let address = address_to_string(secret_key_ref.address());
-        let did = DidPkh::from_ethereum_address(&address);
+        let did = DidPkh::from_address(&ETHEREUM, &address);
         let message = create_identity_claim(actor_id, &did).unwrap();
         let signature = sign_message(&secret_key_str, message.as_bytes()).unwrap().to_string();
         let result = verify_identity_proof(actor_id, &did, &signature);
diff --git a/src/mastodon_api/accounts/views.rs b/src/mastodon_api/accounts/views.rs
index c7a6804..eacdaf9 100644
--- a/src/mastodon_api/accounts/views.rs
+++ b/src/mastodon_api/accounts/views.rs
@@ -227,7 +227,7 @@ async fn get_identity_claim(
     let actor_id = current_user.profile.actor_id(&config.instance_url());
     let wallet_address = current_user.wallet_address.as_ref()
         .ok_or(HttpError::PermissionError)?;
-    let did = DidPkh::from_ethereum_address(wallet_address);
+    let did = DidPkh::from_address(&config.default_currency(), wallet_address);
     let claim = create_identity_claim(&actor_id, &did)
         .map_err(|_| HttpError::InternalError)?;
     let response = IdentityClaim { claim };
@@ -246,7 +246,7 @@ async fn create_identity_proof(
     let actor_id = current_user.profile.actor_id(&config.instance_url());
     let wallet_address = current_user.wallet_address.as_ref()
         .ok_or(HttpError::PermissionError)?;
-    let did = DidPkh::from_ethereum_address(wallet_address);
+    let did = DidPkh::from_address(&config.default_currency(), wallet_address);
     verify_identity_proof(
         &actor_id,
         &did,
diff --git a/src/models/profiles/currencies.rs b/src/models/profiles/currencies.rs
index 604c469..088b766 100644
--- a/src/models/profiles/currencies.rs
+++ b/src/models/profiles/currencies.rs
@@ -10,6 +10,21 @@ impl Currency {
             Self::Ethereum => "ETH",
         }.to_string()
     }
+
+    /// Network ID and chain ID according to CAIP-2 standard
+    /// https://github.com/ChainAgnostic/CAIPs/blob/master/CAIPs/caip-2.md
+    pub fn caip2(&self) -> (String, String) {
+        let (network_id, chain_id) = match self {
+            Self::Ethereum => ("eip155", "1"),
+        };
+        (network_id.to_string(), chain_id.to_string())
+    }
+
+    pub fn normalize_address(&self, address: &str) -> String {
+        match self {
+            Self::Ethereum => address.to_lowercase(),
+        }
+    }
 }
 
 pub fn get_currency_field_name(currency: &Currency) -> String {
diff --git a/src/models/profiles/queries.rs b/src/models/profiles/queries.rs
index d910dc8..75ae83b 100644
--- a/src/models/profiles/queries.rs
+++ b/src/models/profiles/queries.rs
@@ -3,6 +3,7 @@ use uuid::Uuid;
 
 use crate::database::catch_unique_violation;
 use crate::errors::DatabaseError;
+use crate::ethereum::identity::DidPkh;
 use crate::models::cleanup::{
     find_orphaned_files,
     find_orphaned_ipfs_objects,
@@ -374,6 +375,7 @@ pub async fn search_profile_by_wallet_address(
     wallet_address: &str,
 ) -> Result<Vec<DbActorProfile>, DatabaseError> {
     let field_name = get_currency_field_name(currency);
+    let did_str = DidPkh::from_address(currency, wallet_address).to_string();
     // If currency is Ethereum,
     // search over extra fields must be case insensitive
     let rows = db_client.query(
@@ -382,6 +384,11 @@ pub async fn search_profile_by_wallet_address(
         FROM actor_profile LEFT JOIN user_account USING (id)
         WHERE
             user_account.wallet_address = $2
+            OR EXISTS (
+                SELECT 1
+                FROM jsonb_array_elements(actor_profile.identity_proofs) AS proof
+                WHERE proof ->> 'issuer' = $3
+            )
             OR EXISTS (
                 SELECT 1
                 FROM jsonb_array_elements(actor_profile.extra_fields) AS field
@@ -390,7 +397,7 @@ pub async fn search_profile_by_wallet_address(
                     AND field ->> 'value' ILIKE $2
             )
         ",
-        &[&field_name, &wallet_address],
+        &[&field_name, &wallet_address, &did_str],
     ).await?;
     let profiles: Vec<DbActorProfile> = rows.iter()
         .map(|row| row.try_get("actor_profile"))
@@ -481,7 +488,11 @@ mod tests {
     use crate::activitypub::actor::Actor;
     use crate::database::test_utils::create_test_database;
     use crate::models::profiles::queries::create_profile;
-    use crate::models::profiles::types::{ExtraField, ProfileCreateData};
+    use crate::models::profiles::types::{
+        ExtraField,
+        IdentityProof,
+        ProfileCreateData,
+    };
     use crate::models::users::queries::create_user;
     use crate::models::users::types::UserCreateData;
     use super::*;
@@ -575,4 +586,25 @@ mod tests {
         assert_eq!(profiles.len(), 1);
         assert_eq!(profiles[0].id, profile.id);
     }
+
+    #[tokio::test]
+    #[serial]
+    async fn test_search_profile_by_wallet_address_identity_proof() {
+        let db_client = &mut create_test_database().await;
+        let identity_proof = IdentityProof {
+            issuer: DidPkh::from_address(&ETHEREUM, "0x1234abcd"),
+            proof_type: "ethereum".to_string(),
+            value: "13590013185bdea963".to_string(),
+        };
+        let profile_data = ProfileCreateData {
+            identity_proofs: vec![identity_proof],
+            ..Default::default()
+        };
+        let profile = create_profile(db_client, profile_data).await.unwrap();
+        let profiles = search_profile_by_wallet_address(
+            db_client, &ETHEREUM, "0x1234abcd").await.unwrap();
+
+        assert_eq!(profiles.len(), 1);
+        assert_eq!(profiles[0].id, profile.id);
+    }
 }