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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de54a8f6209319ac982f7961bc1ed908edccf5229c76b21e8ada4d51e5b9768. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4cec934-56cd-4d56-ad2b-d373802087a8.json and https://artists.proofprofile.net/proofs/artist/d4cec934-56cd-4d56-ad2b-d373802087a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Silver Planet: 50th Anniversary Release (Disk 2)
Shore's Harmony ("Termina (Another World)" from "Chrono Cross")