1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xfa3330dee3c77339a4a903e9db2178ea192b907a6afa714507b70c0536d0755c. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49280b7e-756e-4f8f-acdf-a9d01d8b99d6.json and https://artists.proofprofile.net/proofs/artist/49280b7e-756e-4f8f-acdf-a9d01d8b99d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jack, der Monsterschreck 1: Jack, der Monsterschreck, und die Zombie-Apokalypse (Ein Netflix-Original)