BTCNostrary
Permanently record Nostr events on the Bitcoin blockchain via OP_RETURN or Ordinal inscriptions.
Lookup
Find a notarization by txid or event ID
Verify on-chain
Independently verify a notarization directly on Bitcoin
Open verifierHow to notarize
timestamp~1,500 sats
Records the event ID in an OP_RETURN output. Fast, cheap, and lightweight.
timestamp: nevent1...inscription~3,000+ sats
Inscribes the full event JSON as an Ordinal. Viewable on ordinals.com.
inscription: nevent1...1Tag the bot on Nostr
2Pay the Lightning invoice
3Receive confirmation with txid
Bot npub
npub1gqfchd8w4ejhnqfzxyym3w3hgt5k35rez0gzkp7p0rtsgmtk6ygqs2ny7jBot npub
npub1gqfchd8w4ejhnqfzxyym3w3hgt5k35rez0gzkp7p0rtsgmtk6ygqs2ny7j