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 0x29f3f765a9b96a943682eba9dc01554ab5b5500292be2b15bdf307a75d10b9f1. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/932d104b-0288-4153-8b30-ede1da29ab00.json and https://artists.proofprofile.net/proofs/artist/932d104b-0288-4153-8b30-ede1da29ab00.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Regina / Act 2: Oh, Addie, where are you?
Regina / Act 2: These cee-gars what you looking for, son?
Regina / Act 3: Horace and Addie (dialogue)