What is Nostr?

Which of these can a single relay do to your notes?

• Edit the text and keep your valid signature on it
• Refuse to store or pass on your notes
• Stop every other relay from accepting your notes

NIP-65 says clients "SHOULD" read a user's notes from that user's listed write relays. What does that mean for you?

• Every app is required to find you wherever you publish
• Some apps follow your relay list and some read only their own fixed set of relays
• Your relay list is ignored by every app