If our device does not have an owner, we must make it possible for the owner to claim the device. This is done by presenting the same meta-information as the device just registered. We do this by creating an iotdisco URI that we store to a file:

if (string.IsNullOrEmpty(e.OwnerJid)) 
{ 
   string ClaimUrl = registryClient.EncodeAsIoTDiscoURI( MetaInfo); 
   string FilePath = ApplicationData.Current.LocalFolder.Path + 
         Path.DirectorySeparatorChar + "Sensor.iotdisco"; 
 
   Log.Informational("Registration successful."); 
   Log.Informational(ClaimUrl, new KeyValuePair<string, object>( 
         "Path", FilePath)); 
 
   File.WriteAllText(FilePath, ClaimUrl); 
}