1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ce901f26635f91b37a68ac1a9de5d51b63e77c093d39e7e0e5658262710455. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0411dff-fd76-4127-8fca-a0facc511d81.json and https://artists.proofprofile.net/proofs/artist/f0411dff-fd76-4127-8fca-a0facc511d81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Au revoir, rome / J'apprendrai (Mono version)
Quand je monte / C'était trop beau (feat. Pierre Delvincourt et son orchestre) [Mono Version]
Sophia (feat. Jean-Pierre Landreau et son orchestre) [Mono Version]
No. 1 : Vous en souvenez-vous ? (feat. Wal-Berg et son orchestre) [Mono Version]
Au revoir, Rome (feat. Wal-Berg et son orchestre, Jo Boyer et son orchestre) [Mono Version]
Donnez-moi la main mamz'elle (Mono Version)
Les souvenirs sont faits de ça / Je sais que vous êtes jolie (Mono Version)
Le grand succès du festival de San Remo (Mono Version)
Gondolier (feat. Quincy Jones et son orchestre) [Mono Version]
Noël (feat. G. Levecque et son orchestre) [Mono Version]
C'était hier / J'entends l'amour (Mono Version)
La petite église (feat. Wal-Berg et son orchestre) [Mono Version]