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 0x0e9540e7b4c42a4f9cad7c4e16be43506abc6f438e975734e817edb1ecd861b7. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6844d2e9-1d74-4957-b174-f04e62c9e46f.json and https://artists.proofprofile.net/proofs/artist/6844d2e9-1d74-4957-b174-f04e62c9e46f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dorp Van Hop En Van Mout - Live in Mariahout
Kind Van De Zon En De Wind - Live in Nuenen
Het Is Altijd Zoals Het Hoort Te Zijn - Live in Doesburg