So theoretically, for 'online age verification' issues currently going on, governments can create apps that allow a user to retrieve their data from government database anonymously (zk-proofs for authentication and PIR for anonymous data requests) and then be able to authenticate that they are over the legal age in any required website through another zk-proof operation (so website doesn't know how old u actually are or who are you, yet can mathematically confirm that you are over a certain age)? so it's technically possible but regulators just lack the intention? I imagine they would still be able to associate some db requests with login times etc via metadata but that's solvable as well

This is why i wish projects like Pirate-Chain (Zcash hardfork) had more recognition. The protocol enforces shielded zk-snarks transaction by default, which eliminates the core weakness of zcash.

@final [GrapheneOS] 📱👁️‍🗨️ Quick Q about GrapheneOS USB backups:

- Does it back up only the active profile, or all profiles at once?

- If it's per-profile: can one USB drive hold multiple profile backups, and can they all be restored to a new phone from that same drive?

Careful!