You’re probably better off just reading the paper he links to: https://www.cs.columbia.edu/~smb/papers/age-verify.pdf https://www.cs.columbia.edu/~smb/papers/a

You’re probably better off just reading the paper he links to: https://www.cs.columbia.edu/~smb/papers/age-verify.pdf https://www.cs.columbia.edu/~smb/papers/age-verify.pdf I think it shows the difficulty of implementing it for everyone. But Apple and Google’s cell phone implementations would probably cover most people in some countries when finished, and then there will be a long tail of people who will need cheats and workarounds. You’d be screwed if you didn’t have any friends who could help you cheat.