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 0x35a8588e528c16bb3d5d401d78842d6797139ad8d36d05e06fa758413653a10a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb5df68e-efe4-4d02-b114-0bd0c4b07f30.json and https://artists.proofprofile.net/proofs/artist/cb5df68e-efe4-4d02-b114-0bd0c4b07f30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Electronic Stone (12.7.12 Rochester, Ny)
Mind Crossing (8.31.13 Oriskany Falls, Ny)
Devil's in the Details (8.31.13 Oriskany Falls, Ny)