fix: timestamp comparison in to_json function

archivebox/index/schema.py

@@ -190,7 +190,10 @@ class Link:
             for key, val in json_info.items()
             if key in cls.field_names()
         }
-        info['updated'] = parse_date(info.get('updated'))
+        try:
+            info['updated'] = int(parse_date(info.get('updated'))) # Cast to int which comes with rounding down
+        except (ValueError, TypeError):
+            info['updated'] = None
         info['sources'] = info.get('sources') or []
 
         json_history = info.get('history') or {}