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 0xea1b5a0fa37bd54542241d945704b4df7845e21fb852cf6a23fcb838314de219. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2a49039-3a71-469d-92f3-653e807dc1d8.json and https://artists.proofprofile.net/proofs/artist/c2a49039-3a71-469d-92f3-653e807dc1d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Best of The Ultimate Reggae & Dancehall, Vol.1 2007 - 2013