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what if every toot had a qr-like cryptographic signature next to it, so you could even verify toots on screenshots shared somewhere else
what if we had a federated standard for that & signing arbitrary content & fetching keys for a domain and local key identifier
pretty sure that's already part of a PKCS...
Who owns the keys: instance, but an instance could technically let the client keep it for added security and just keep a public key index and confirm ownership of a pubkey for the domain.
@CobaltVelvet im sure @gargron is salivating now
