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 0xb34cf222cd9c3569fba8e4ccd00b63b407d818c9cd70a1381a222aa121facf99. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9afbd931-7508-49bb-84fe-6fe3883ff852.json and https://artists.proofprofile.net/proofs/artist/9afbd931-7508-49bb-84fe-6fe3883ff852.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Indie / Pop / Folk Compilation: September 2022