I was exploring how to use Nostr to add into the current cell phone environment knowledge that the person I'm talking with is indeed my son.
Discussion
Oh interesting, so exploring audio signatures? combined with other methods?
First step I considered was in-device audio signatures or face recognition to sign the call request. This doesn't protect against all scenarios but it already solves a large percentage of scams currently out there.
Mass adoption requires super simple experience, like the padlock on your web browser that tells you that you're connected to the real primal.net.