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 0xd047d5ed3083d612ea81b04e19927b4167cd3274426645e589f3b537ab60606d. 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/a3d6e69c-8035-42cc-8697-bc075e8fa6b1.json and https://artists.proofprofile.net/proofs/artist/a3d6e69c-8035-42cc-8697-bc075e8fa6b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Irie Reggae, 1st Stage (Soulful & Relaxing Reggae)
Festival International Nuits d'Afrique 38ème Édition - Compilation 2024