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 0xf0056dfb72a2af8d16e0e035770b11a1c479c2d765dcf377da129616d89c14c9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4ef1d707-46e6-47ea-b647-8874cd1872d8.json and https://artists.proofprofile.net/proofs/artist/4ef1d707-46e6-47ea-b647-8874cd1872d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das verschwundene Mädchen [Cold Case 1 (Gekürzt)]
Das gezeichnete Opfer [Cold Case 2 (Gekürzt)]
Das gebrannte Kind [Cold Case 3 (Gekürzt)]