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 0x2124a8098bb8afd86a151369cb35d55f4ddaad9d5fb12eb47b13462721265413. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ad80ded-ad29-482d-8156-af03939bb8d4.json and https://artists.proofprofile.net/proofs/artist/0ad80ded-ad29-482d-8156-af03939bb8d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Compost House Selection Vol. 2 - Get Slapped Up - House Moods