Proof of Humanity Captcha

For learning purposes I’m developing some kind of captcha based on proof of humanity.
Someone know if anything like this already exist?
The idea is to use the wallet to sign a message, and validate in FE and BE that the address that sign the message exist in POH.

Any suggestions will be welcome.


First MPV (its very rough)


This is great!

Are you in the Dev poh tg group?

Thanks! No, im not in that group

I’ll dm You the invite link to the group so You can join! What’s your user telegram handler?