diff --git a/ereuse_devicehub/forms.py b/ereuse_devicehub/forms.py
index fbb136d8..4b237a8f 100644
--- a/ereuse_devicehub/forms.py
+++ b/ereuse_devicehub/forms.py
@@ -61,7 +61,7 @@ class LoginForm(FlaskForm):
         if not user.is_active:
             self.form_errors.append(self.error_messages['inactive'])
 
-        if 'trublo' not in app.blueprints.keys():
+        if 'trublo' in app.blueprints.keys():
             token_dlt = (
                 user.get_dlt_keys(self.password.data).get('data', {}).get('api_token')
             )
diff --git a/ereuse_devicehub/resources/action/views/snapshot.py b/ereuse_devicehub/resources/action/views/snapshot.py
index dd967fee..49ea34dd 100644
--- a/ereuse_devicehub/resources/action/views/snapshot.py
+++ b/ereuse_devicehub/resources/action/views/snapshot.py
@@ -116,6 +116,7 @@ class SnapshotMixin:
             snapshot.severity = Severity.Warning
 
         self.is_server_erase(snapshot)
+        snapshot.device.register_dlt()
 
         return snapshot
 
diff --git a/ereuse_devicehub/resources/device/models.py b/ereuse_devicehub/resources/device/models.py
index 0f398737..31c80a08 100644
--- a/ereuse_devicehub/resources/device/models.py
+++ b/ereuse_devicehub/resources/device/models.py
@@ -1,4 +1,5 @@
 import copy
+import hashlib
 import pathlib
 from contextlib import suppress
 from fractions import Fraction
@@ -9,7 +10,9 @@ from typing import Dict, List, Set
 from boltons import urlutils
 from citext import CIText
 from ereuse_utils.naming import HID_CONVERSION_DOC, Naming
-from flask import g, request
+from ereuseapi.methods import API
+from flask import current_app as app
+from flask import g, request, session
 from more_itertools import unique_everseen
 from sqlalchemy import BigInteger, Boolean, Column
 from sqlalchemy import Enum as DBEnum
@@ -816,6 +819,20 @@ class Device(Thing):
         }
         return types.get(self.type, '')
 
+    def register_dlt(self):
+        if 'trublo' not in app.blueprints.keys() or not self.hid:
+            return
+
+        chid = hashlib.sha3_256(self.hid.encode('utf-8')).hexdigest()
+        token_dlt = session.get('token_dlt', ".").split(".")[1]
+        api_dlt = app.config.get('API_DLT')
+        if not token_dlt or not api_dlt:
+            return
+
+        api = API(api_dlt, token_dlt, "ethereum")
+
+        result = api.register_device(chid)
+
     def __lt__(self, other):
         return self.id < other.id
 
diff --git a/ereuse_devicehub/resources/user/models.py b/ereuse_devicehub/resources/user/models.py
index d0287b94..33c77043 100644
--- a/ereuse_devicehub/resources/user/models.py
+++ b/ereuse_devicehub/resources/user/models.py
@@ -117,6 +117,9 @@ class User(UserMixin, Thing):
 
         from modules.trublo.utils import decrypt
 
+        if not self.api_keys_dlt:
+            return {}
+
         data = decrypt(password, self.api_keys_dlt)
         return json.loads(data)