I get the impression that verifying your email address only needs to be done once when you first sign up with Persona and create a password. When you use Perso

I get the impression that verifying your email address only needs to be done once when you first sign up with Persona and create a password. When you use Persona to log in to a site for the first time in that browser, it prompts you for your Persona password and issues a certificate on success. If that certificate expires, I presume you would have to use your password again with Persona to get a new certificate. I haven't found anything about manually revoking a cert, but I haven't looked either.