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 0x092ecaacdbdb4d60ce439cab946f3c8c926587242a3bed67f03f46831b0e5c5b. 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/baaed240-a3e1-49d5-a168-bc01037a0b8c.json and https://artists.proofprofile.net/proofs/artist/baaed240-a3e1-49d5-a168-bc01037a0b8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley Rihanna: Love the Way You Lie / What's My Name? / Only Girl