Long-Form Content

You publish a new version of an article with the same `d` tag. What should a relay following NIP-01 do?

• Keep both versions and show them side by side
• Keep the newest version for that kind, key and `d` tag; it may discard the older one
• Reject the new version, because the address is taken

Which timestamp records when an article first appeared?

• `created_at`
• `published_at`
• The `d` tag