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 0x539f882c9bbf7f2f1f2be7370e8adc2321aeb19ae598345d4cae4641260a1cf8. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fbba910-d507-4002-b0be-bc3324958647.json and https://artists.proofprofile.net/proofs/artist/3fbba910-d507-4002-b0be-bc3324958647.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Haleway And goobye (If Only And Goodbye)