The magic happens during the initial pairing of the lock. This is when the unique proprietary technology that is based on cryptography and specially designed algorithm gets synced with your account.
Once paired, this allows users to call for a specific PIN digit based on parameters that you indicate.
Parameters will be how long you want the PIN to work and the nature of the PIN (Duration, One-Time, Permanent)
Our locks use a similar technology as the online banking OTP.