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by mrob 2 days ago
Zero knowledge proofs are unusable for age verification because they're impossible to revoke. One person can share their ID and everyone else can use it.
1 comments

If your country has a digital ID, it is possible.
If it's possible to revoke then by definition it's not zero knowledge. Revocation status is knowledge.
Sorry, i wasn't clear. If you have digital ID, you can emit time-limited certificates.