Secure Profiles

[braydonf]

This NIP defines a protocol to secure user profile metadata (kind 0) with attestations of tags, keys and values. Users can verify other users' profile metadata with a public or private attestations.

This has several advantages:

• Protection of the impersonation of user profiles. It's possible to verify a user profile without following them.
• An ability to verify different values of the metadata as a user or through a user's web-of-trust. This could be useful for various spam mitigation and filtering techniques.
• Post-compromise security of a profile. The verified NIP-05 nostr address and other values can remain original. This could expand to have additional pubkeys for a profile to help determine honesty.
• Ability to expand into a naming system for (.onion addresses, nostr addresses and etc).
• Granularity, not all metadata is verified, any tag or key/value can be verified and duplicated in the attestation.

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