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 0x2bd443d5a02851376c2d061577e00e8bcf6b1f63ddeb86f44e14cc627edefc52. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6007380c-22e0-4438-9d26-f602f343b318.json and https://artists.proofprofile.net/proofs/artist/6007380c-22e0-4438-9d26-f602f343b318.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MaAuLa-o-rama, Vol.7 - Exotic Savoir Faire
Festival International Nuits d'Afrique 37ème Édition - Compilation 2023