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 0x499f7e7786f7a49189f5413e168e5bf703c813ed0c602d11242de74edb4ff34e. 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/b147c274-65aa-4178-9f1e-0b2366a2df18.json and https://artists.proofprofile.net/proofs/artist/b147c274-65aa-4178-9f1e-0b2366a2df18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sauti Ya Mnyonge (The Voice Of The Underdog)
Worldwide (30 Years of Real World Music)
30: Real World at Womad (Real World Gold)