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 0xcc8eed72f500894306e9d40ab2a58df350574c1ceae3c5166f6a37df7e4c72c6. 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/2dfc0256-ac60-4885-bf6d-9c21b242a934.json and https://artists.proofprofile.net/proofs/artist/2dfc0256-ac60-4885-bf6d-9c21b242a934.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tierra de Alerces - Cantos y Danzas de Chiloé
La Música de Chile, Chilean Music. For Export