Much easier validating the domain with just a DNS record:
https://github.com/nostr-protocol/nips/issues/146
Nip7 / Nip7
npub1yq…kstem
2023-01-12 18:25:11
in reply to nevent1q…d9yg
Author Public Key
npub1yq9prakuz6d8a2msag4g880esmzdwln80z95cc323t7xpmlwhu0skkstemSeen on
wss://relay.nostr.band