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 0x777e794dd70af5224ba1931b3faa3366d32bfac67aa316e2df781f0706ca3466. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/274b1973-1805-48b5-885c-aa70afd23e55.json and https://artists.proofprofile.net/proofs/artist/274b1973-1805-48b5-885c-aa70afd23e55.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
C'est quoi ma place ? (Version acoustique)
C'est quoi ma place ? - Version acoustique
C'est quoi ma place ? (Versions alternatives)
C'est quoi ma place ? - Version Acoustique
Le petit pain au chocolat - À toi, Joe Dassin