diff --git a/backend/app/alembic/versions/830fd9c44f39_.py b/backend/app/alembic/versions/830fd9c44f39_.py
index 222afb45..b80cef52 100644
--- a/backend/app/alembic/versions/830fd9c44f39_.py
+++ b/backend/app/alembic/versions/830fd9c44f39_.py
@@ -32,11 +32,20 @@ def upgrade():
             "origin", sqlmodel.sql.sqltypes.AutoString(length=256), nullable=True
         ),
     )
+    op.add_column(
+        "chat_messages",
+        sa.Column(
+            "post_verification_result_url",
+            sqlmodel.sql.sqltypes.AutoString(length=512),
+            nullable=True,
+        ),
+    )
     # ### end Alembic commands ###
 
 
 def downgrade():
     # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column("chat_messages", "post_verification_result_url")
     op.drop_column("feedbacks", "origin")
     op.drop_column("chats", "origin")
     # ### end Alembic commands ###
diff --git a/backend/app/models/chat_message.py b/backend/app/models/chat_message.py
index cc8a667d..fe9a1fd1 100644
--- a/backend/app/models/chat_message.py
+++ b/backend/app/models/chat_message.py
@@ -38,5 +38,9 @@ class ChatMessage(UpdatableBaseModel, table=True):
             "primaryjoin": "ChatMessage.user_id == User.id",
         },
     )
+    post_verification_result_url: Optional[str] = Field(
+        max_length=512,
+        nullable=True,
+    )
 
     __tablename__ = "chat_messages"
diff --git a/backend/app/rag/chat.py b/backend/app/rag/chat.py
index 3d16f088..56e1b2e7 100644
--- a/backend/app/rag/chat.py
+++ b/backend/app/rag/chat.py
@@ -3,6 +3,7 @@
 from uuid import UUID
 from typing import List, Generator, Optional, Tuple
 from datetime import datetime, UTC
+from urllib.parse import urljoin
 
 import requests
 import jinja2
@@ -421,18 +422,6 @@ def _get_llamaindex_callback_manager():
         if not response_text:
             raise Exception("Got empty response from LLM")
 
-        db_assistant_message.sources = source_documents
-        db_assistant_message.graph_data = graph_data_source_ids
-        db_assistant_message.content = response_text
-        db_assistant_message.updated_at = datetime.now(UTC)
-        db_assistant_message.finished_at = datetime.now(UTC)
-        self.db_session.add(db_assistant_message)
-        db_user_message.graph_data = graph_data_source_ids
-        db_user_message.updated_at = datetime.now(UTC)
-        db_user_message.finished_at = datetime.now(UTC)
-        self.db_session.add(db_user_message)
-        self.db_session.commit()
-
         yield ChatEvent(
             event_type=ChatEventType.MESSAGE_ANNOTATIONS_PART,
             payload=ChatStreamMessagePayload(
@@ -440,13 +429,26 @@ def _get_llamaindex_callback_manager():
             ),
         )
 
-        self._post_verification(
+        post_verification_result_url = self._post_verification(
             self.user_question,
             response_text,
             self.db_chat_obj.id,
             db_assistant_message.id,
         )
 
+        db_assistant_message.sources = source_documents
+        db_assistant_message.graph_data = graph_data_source_ids
+        db_assistant_message.content = response_text
+        db_assistant_message.post_verification_result_url = post_verification_result_url
+        db_assistant_message.updated_at = datetime.now(UTC)
+        db_assistant_message.finished_at = datetime.now(UTC)
+        self.db_session.add(db_assistant_message)
+        db_user_message.graph_data = graph_data_source_ids
+        db_user_message.updated_at = datetime.now(UTC)
+        db_user_message.finished_at = datetime.now(UTC)
+        self.db_session.add(db_user_message)
+        self.db_session.commit()
+
         yield ChatEvent(
             event_type=ChatEventType.DATA_PART,
             payload=ChatStreamDataPayload(
@@ -498,7 +500,8 @@ def _get_source_documents(self, response: StreamingResponse) -> List[dict]:
 
     def _post_verification(
         self, user_question: str, response_text: str, chat_id: UUID, message_id: int
-    ):
+    ) -> Optional[str]:
+        # post verification to external service, will return the post verification result url
         post_verification_url = self.chat_engine_config.post_verification_url
         post_verification_token = self.chat_engine_config.post_verification_token
 
@@ -522,6 +525,8 @@ def _post_verification(
                 timeout=10,
             )
             resp.raise_for_status()
+            job_id = resp.json()["job_id"]
+            return urljoin(f"{post_verification_url}/", str(job_id))
         except Exception:
             logger.exception("Failed to post verification")