diff --git a/psl_proof/__main__.py b/psl_proof/__main__.py
index 3826e9c..1d9cfb6 100644
--- a/psl_proof/__main__.py
+++ b/psl_proof/__main__.py
@@ -19,7 +19,7 @@ def load_config() -> Dict[str, Any]:
         'input_dir': INPUT_DIR,
         'salt': '5EkntCWI',
         'validator_base_api_url': 'https://api.vana.genesis.dfusion.ai'
-        #'validator_base_api_url': 'https://d9d9-169-0-168-109.ngrok-free.app'
+        #'validator_base_api_url': 'https://a34c-169-0-168-109.ngrok-free.app'
     }
     logging.info(f"Using config: {json.dumps(config, indent=2)}")
     return config
diff --git a/psl_proof/models/cargo_data.py b/psl_proof/models/cargo_data.py
index 5b4eb42..42dc7a2 100644
--- a/psl_proof/models/cargo_data.py
+++ b/psl_proof/models/cargo_data.py
@@ -101,48 +101,45 @@ class SourceData:
     source: DataSource         # "telegram"
     user: str
     submission_token: str
-    submission_id: str
-    submission_by: str
     submission_date: datetime
+    proof_token: str 
     source_chats: List[SourceChatData]  # List of SourceChatData instances
 
-    def __init__(self, source, submission_token, submission_id, submission_by, submission_date, user, source_chats=None):
+    def __init__(self, source, submission_token, submission_date, user, source_chats=None, proof_token=None, ):
         self.source = source
         self.user = user
         self.submission_token = submission_token
-        self.submission_id = submission_id
-        self.submission_by = submission_by
         self.submission_date = submission_date
+        proof_token = proof_token
         self.source_chats = source_chats or []
 
     def to_dict(self):
         return {
             "source": self.source.name,  # Use .name to convert enum to string
-            "user": self.user,
-            "submission_id": self.submission_id,
-            "submission_by": self.submission_by,
+            "user": str(self.user),
             "submission_date": self.submission_date.isoformat() if isinstance(self.submission_date, datetime) else str(self.submission_date),
             "chats": [source_chat.to_dict() for source_chat in self.source_chats]
         }
 
     def to_submission_json(self) :
         json = {
-            "DataSource": self.source.value,  # Use .name to convert enum to string
-            "SourceId": self.submission_id,
+            "DataSource": self.source.value,  # enum value
+            "SourceId": str(self.user),
             "ProofToken": self.proof_token,
-            "SubmittedBy": self.submission_by,
+            "SubmittedBy": self.submission_by(),
             "SubmittedOn": self.submission_date.isoformat(),
             "Chats": [source_chat.to_submission_json() for source_chat in self.source_chats]
         }
         #print(f"Submission json:{json}")
         return json
 
+    def submission_by(self):
+        return f"{self.source.name}:{self.user}"
+
     def to_verification_json(self) -> dict:
         return {
             "Token": self.submission_token,
-            "Reference": self.submission_id #,
-            #"SubmittedBy": self.submission_by,
-            #"SubmittedOn": self.submission_date.isoformat(),
+            "Reference": self.submission_by()
         }
 
 # ChatData for Source (final destination data structure)
diff --git a/psl_proof/proof.py b/psl_proof/proof.py
index c7dd61e..c6c9734 100644
--- a/psl_proof/proof.py
+++ b/psl_proof/proof.py
@@ -43,7 +43,6 @@ def generate(self) -> ProofResponse:
             (source_data.source, source_data.user),
             salt
         )
-        source_data.submission_by = source_user_hash_64
         proof_failed_reason = ""
         verify_result = verify_token(
             self.config,
@@ -73,7 +72,7 @@ def generate(self) -> ProofResponse:
             cargo_data.chat_histories = submission_history_data.chat_histories
             cargo_data.last_submission = submission_history_data.last_submission
 
-        cool_down_period = 12 # hours
+        cool_down_period = 4 # hours
         submission_time_elapsed = cargo_data.submission_time_elapsed()
         if is_data_authentic and cargo_data.last_submission and submission_time_elapsed < cool_down_period:
             is_data_authentic = False
@@ -202,8 +201,6 @@ def get_source_data(
     submission_token = input_data.get('submission_token', '')
     #print("submission_token: {submission_token}")
 
-    submission_id = input_data.get('submission_id', '')
-
     input_user = input_data.get('user')
     #print(f"input_user: {input_user}")
 
@@ -211,8 +208,6 @@ def get_source_data(
         source=input_source,
         user=input_user,
         submission_token = submission_token,
-        submission_id = submission_id,
-        submission_by = input_user,
         submission_date = submission_timestamp
     )