So I’ve been wondering how and if I could implement a particular authentication flow with auth0.
Let’s say we have a system where the only way to really authenticate and match a user to our database is when we send a (physical, paper) invoice.
Would it be possible to generate a link/QR code that can be used to log in a user?
With passwordless the user gets a mail/sms with an OTP. But in this case it’s like the OTP already has been pregenerated.
Or would it be wiser to generate a special registration URL which then starts a passwordless flow in which the identity is already confirmed somehow?
I couldn’t really find a way for something like this in the docs so if anybody has an idea I’d be happy to hear it!