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 0x337d6297c1a935f8440ef509351e864a5b458453adca4b583d63e449bce582be. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82dc9fa7-2e8d-499e-a44d-1a232517c8d1.json and https://artists.proofprofile.net/proofs/artist/82dc9fa7-2e8d-499e-a44d-1a232517c8d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Genous Thrilikou (11 Gynaikes 11 Tragoudia)
Oi Kalyteres Diaskeves Ellinikon Tragoudion