Interesting - so you generate a key pair on your phone (this is your identity and can be backed up to a printable QR code). Then, to login to any site, you sca

Interesting - so you generate a key pair on your phone (this is your identity and can be backed up to a printable QR code). Then, to login to any site, you scan a QR code displayed beside a login form and your phone can verify it''s identity (i.e. proves that it's the holder of the key pair). Perhaps on the first sign-in, the site will ask for an email address or some details to create an account for you.