diff --git a/app/api/routes/_blockchain.py b/app/api/routes/_blockchain.py
index cf392a7..6a1bb76 100644
--- a/app/api/routes/_blockchain.py
+++ b/app/api/routes/_blockchain.py
@@ -115,7 +115,7 @@ async def s_api_v1_blockchain_send_new_content_message(request):
                                     .store_ref(
                                         begin_cell()
                                             .store_uint(1, 8)
-                                            .store_bytes(f"{PROJECT_HOST}/api/v1/storage/{metadata_content.hash}".encode())
+                                            .store_bytes(f"{PROJECT_HOST}/api/v1/storage/{metadata_content.cid.serialize_v1()}".encode())
                                             .end_cell()
                                     )
                                     .store_ref(