In my opinion an anonymous age verification can not involve a third party in any way. There will be leaks, either because of unforeseen design limitations or due to bad implementations.

The only true anonymous age verification would be simply adding an RTA header [1] to the server/URL and then have laws requiring common user-agents look for said header. An intern could add the check that triggers parental controls at each browser company. Not perfect, nothing is but there are no third parties involved. Tablets and phones can be locked down so that small children can not add new user-agents or change configurations. Teens can and will bypass anything. Teens stream porn and pirated movies in video games rated PG today and that will always be a thing.

For what it's worth, I think it's cool that you created something to give corporations more options. No harm in more options.

[1] - https://www.rtalabel.org/index.php?content=howtofaq#single

I'm not as concerned with preventing kids from accessing adult materials. Thats what parents are for. My main driver here is to offer a free counter punch to tx sb 1181.

Making adult sites verify age with expensive and leaky third parties. Bad. My proposal is free, and helps to take the sting away from being required to perform age verification.

And, its shovel ready now.