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 0xb8c2fad4808633d642d1288b6ded7963dee8c9efff5668c43423584b1ec5668c. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/da1434ef-8fca-410a-ba1d-472620b56d94.json and https://artists.proofprofile.net/proofs/artist/da1434ef-8fca-410a-ba1d-472620b56d94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Todeszeitpunkt [Harry Kent - Niemand kommt Tätern und Opfern so nahe (Ungekürzte Lesung)]