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 0x80732344e441cad5bdc0c6136672867e05cb517cf08d2cbf208fdb96812b30b4. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ead6f6a-8233-48ac-835c-35a145c4fa1a.json and https://artists.proofprofile.net/proofs/artist/9ead6f6a-8233-48ac-835c-35a145c4fa1a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die Totentafel [Heather Bishop, Band 1 (ungekürzt)]
Die Unerbittliche [Heather Bishop, Band 3 (ungekürzt)]
Feuerblut [Hard Sequences, Band 3 (ungekürzt)]
Rückkehr [Heather Bishop, Band 2 (ungekürzt)]
Die Tränen der Göttin [Die-Frederick-Crichton-Romane, Band 1 (ungekürzt)]
Der Ruhm des Königs [Die-Frederick-Crichton-Romane, Band 2 (ungekürzt)]