Its not exactly what you're likely thinking of but FUTO has their Polycentric system with Harbor IDs which are verified by linking to existing sites/social networks. The community can even vouch for the validity of an ID's claim. I can see a system similar to that working here. Decentralized and democratic digital ID is all good. We just have to make sure it never becomes anything like the centralized digital ID that the elite want to force on us.
Discussion
Yup. This stuff exists in various forms already. What doesn’t exist (until now) is a simple technology substrate, that is #nostr that can do job for all.
Traditional certificate authorities would have you believe that they are needed to combine trust with signatures. That’s the belief we can break up with #nostr.
I want to be my own certificate authority, others alone can decide to trust or vouch.