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 0xb4dbade4e5803d2c979d9fd139fc937293dfde70b949f0d8cd99e52f44019172. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebcf3e51-c9ed-4372-b0bd-6f249d63f952.json and https://artists.proofprofile.net/proofs/artist/ebcf3e51-c9ed-4372-b0bd-6f249d63f952.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celebrate Basketball (The Official Eurobasket 2011 Song)