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 0x12a4cc839ea320cff4de2b5d382961bacb552f960a8386b7c5ec0bc70c012da2. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3ad54f8-2786-4036-8778-08af204cbecc.json and https://artists.proofprofile.net/proofs/artist/c3ad54f8-2786-4036-8778-08af204cbecc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cosmic Cowgirl (Disco Moonshine Version)