Application developers may use any authentication and authorization mechanism such as OAuth. During the application's user registration process, it is necessary to set up the Verified account for the user by calling the
register function with a callback function in the application. This sets up the Verified account for the user with a private key and returns a mnemonic to the callback function in the application. The application should display this mnemonic to the user so that the user can record it. The application may store the mnemonic by ideally encrypting it and store it along with the sign in credentials of users in the application.