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 0x88ca029cf2b8e933af4eb7bc2ac5dddda7584576ad00a20ce709767c38297eb9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4b5cf0d5-c452-4290-b132-49502828cd90.json and https://artists.proofprofile.net/proofs/artist/4b5cf0d5-c452-4290-b132-49502828cd90.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dans les rues de Bahia / Forever je t'aime (feat. Jean Bouchety et son orchestre) [Mono version]
Dans les rues de Bahia (feat. Jean Bouchety et son orchestre) [Mono Version]