Trying to bootstrap a PKI certificate trust chain for facilitating trust projection and information verification online. Think of it as the ability to do something such as age verification at scale via a peer-2-peer ish mechanism instead of sending your government id to a porno service.

We are experimenting with Keybase key holders as CAs:

https://news.ycombinator.com/item?id=46576590

And also .gov email holders:

https://blog.certisfy.com/2025/12/using-gov-email-addresses-...

It's all self-service and requires no sign-up or download of anything, the app (https://certisfy.com/app) is an in-browser app and all the cryptography happens in the browser.