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 0x26df3bb1523058a14acdde574f37343610d91fb125e4aca3d6d831b2b8a64a25. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bbad1a3-ce81-482a-990d-945193060cbe.json and https://artists.proofprofile.net/proofs/artist/5bbad1a3-ce81-482a-990d-945193060cbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vantablack (Shelhiel's Into the Abyss Mix)
Vantablack - Shelhiel's Into the Abyss Mix