Age is just one metric. I don't want zero proof tech about information X. I don't want to have an identity. Full stop.
This can be used to have zero-proof knowledge of "over 18" or "not over 18". So they don't really get your age, except that you are in two broad ranges.
This can be used to have zero-proof knowledge of "over 18" or "not over 18". So they don't really get your age, except that you are in two broad ranges.