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 0x8ae954d8111016bd71a0675d031b0db07fccb6c306a9e2874e2bd3093ac54ffe. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.json and https://artists.proofprofile.net/proofs/artist/e7d268f4-9b5d-4c7f-8da1-ef7eb1788517.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Tote im Teich - Journalistin Charlotte Schrader ermittelt [Eine mörderische Reportage, Band 1 (Ungekürzt)]