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 0x530608fa85babed97868a984f5e94e0b64aba90a19e42bfbbab97feacbf219a8. 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/d4616604-6be9-4464-924d-25b774a8de76.json and https://artists.proofprofile.net/proofs/artist/d4616604-6be9-4464-924d-25b774a8de76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
C... n'aime pas les dimanches - Remastered