My best friends would trust who I am and I would also trust who they are, without looking at our government-issued IDs. We went to the same schools and same classes for many years.
However, they now live on the other side of the planet.
Is it practical and/or secure to get them to sign my public key, via something like a live video chat where I read my public key out-loud to them?
Would this have been good enough before recent advances in audio and video synthesis?
Are there still other ways to prove my identity remotely, without resorting to shared secrets from the past when we still lived in the same city?