1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac4db505c7fab7f19600bafb8702c2eac962204c6c457731f6af4e6cecda9b2. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f010432-2f3c-4f96-8e43-b0dc4d0e37f1.json and https://artists.proofprofile.net/proofs/artist/0f010432-2f3c-4f96-8e43-b0dc4d0e37f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Un soir me prend la fantaisie - Trois fois devant sa porte - Ste Gerbazio
Pastourel Delaï L'Aiga - Un jour je m'y promène
C'est aujourd'hui le premier d'Avril - Adieu ma bonne amie
Scottisch glissante - Scottisch à Chamberet - Maniguette
Bien le bonjour Jeanneton - Mazurka à Chabrier
Bourrée de L'O - La dentelle - Bourrée du grand-père Ythier - Crève de Set
Qui veut entendre une Chanson - Polka à Chabrier
Introducción a la Orquesta del Sonido Bestial