There's a bunch of cool stuff if you Google "proof of {humanity,personhood}". Here's the wiki page: https://en.m.wikipedia.org/wiki/Proof_of_personhood https://

There's a bunch of cool stuff if you Google "proof of {humanity,personhood}". Here's the wiki page: https://en.m.wikipedia.org/wiki/Proof_of_personhood https://en.m.wikipedia.org/wiki/Proof_of_personhood It's all pretty new and not proven long term, but it is an area of active research.