Is There a Way to Verify a Blockchain Key?

There's two ways we could do verification, right? It's like, okay, we could verify that I am a human and you are a human. This reminds me of PGP key signing,. Like, I don't think that ever really caught on, did it? So that's one way to do it. But then a lot of people in the comments were saying that you could do this through web3 stuff. Right. You could do key signatures or you could do something where it's like you verify with one another that you are all human. And so then the technology has been there for decades to do that kind of thing.