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 0xa8a604f92c97dae607519c71d0a32f777fb90e4e1336a06e3be15ff73a0f7c22. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae566286-1613-47fe-81a1-8ba88c03cb63.json and https://artists.proofprofile.net/proofs/artist/ae566286-1613-47fe-81a1-8ba88c03cb63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Carnavaleando Popurrí: Yucutachi/Reparo de Lobo/Chachis/El Paisa/Acho
Los Danzantes Popurrí: La Chaparrita/La Aguacilla/La Auténtica/Soy Virgencita/El Danzante
Carnaval Mixteco Popurrí: El Zanjón/El Mirador/El Pastor/La Mentada/La Loma
Silacayoápam Popurrí: El Mixteco/Mi Silacayoápam/El Capulín/La Cotorrita/Tío Pin