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 0xbf4ed45ae7c2d7c8bfc6499a56d8bf2f233e2e85ba9dea39db599aeccb3bb6e8. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab83fa27-232e-48bb-93e2-9bf22f0ef987.json and https://artists.proofprofile.net/proofs/artist/ab83fa27-232e-48bb-93e2-9bf22f0ef987.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Sea is Now Steam in Mist of a Scream
Cedar & Sage (Riders of the Gallows Vol. 1)