diff --git a/bin/lib/Decoded.py b/bin/lib/Decoded.py
new file mode 100755
index 00000000..0e9689f1
--- /dev/null
+++ b/bin/lib/Decoded.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# -*-coding:UTF-8 -*
+
+import os
+import sys
+import redis
+
+
+sys.path.append(os.path.join(os.environ['AIL_BIN'], 'packages'))
+import Item
+
+
+import ConfigLoader
+
+config_loader = ConfigLoader.ConfigLoader()
+r_serv_metadata = config_loader.get_redis_conn("ARDB_Metadata")
+config_loader = None
+
+def _get_decoded_items_list(sha1_string):
+    return r_serv_metadata.zrange('nb_seen_hash:{}'.format(sha1_string), 0, -1)
+
+def get_item_decoded(item_id):
+    '''
+    Retun all decoded item of a given item id.
+
+    :param item_id: item id
+    '''
+    res = r_serv_metadata.smembers('hash_paste:{}'.format(item_id))
+    if res:
+        return list(res)
+    else:
+        return []
+
+def get_domain_decoded_item(domain):
+    '''
+    Retun all decoded item of a given domain.
+
+    :param domain: crawled domain
+    '''
+    res = r_serv_metadata.smembers('hash_domain:{}'.format(domain))
+    if res:
+        return list(res)
+    else:
+        return []
+
+def save_domain_decoded(domain, sha1_string):
+    r_serv_metadata.sadd('hash_domain:{}'.format(domain), sha1_string) # domain - hash map
+    r_serv_metadata.sadd('domain_hash:{}'.format(sha1_string), domain) # hash - domain ma
+
+if __name__ == "__main__":
+    #sha1_str = '1e4db5adc1334ad2c9762db9ff6b845ee6ddc223'
+    #res = _get_decoded_items_list(sha1_str)
+    #print(res)
+    #print(len(res))
+
+    res = get_domain_decoded_item('2222222dpg65ioqu.onion')
+    print(res)