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 0x92d6f4603b095a8ddfa3cdd44cb9a79eb9d4b299264c9f3f8d6f8d01b3d36ee0. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0f9b6941-c655-4d45-a8a2-0ab18fbc89d9.json and https://artists.proofprofile.net/proofs/artist/0f9b6941-c655-4d45-a8a2-0ab18fbc89d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Scratch Me If You Can, Vol. 1 (Gribouillis sonores)
Ferme ta gueule pis cours (Backyard challenge)
Ligne Directrice (DJ Horg Remix) [Instrumental]