Thoughts: CAA-like records in your profile indicating what relay you post to (eg: what relays can be trusted to be the source of your notes).
Like a source of truth.
Just like you can set a DNS record saying what CA's you trust.
Thoughts? Or is the signature good enough (probably...)
npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6
nostr:npub180cvv07tjdrrgpa0j7j7tmnyl2yr6yr7l8j4s3evf6u64th6gkwsyjh6w6