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 0x0627be62d14d2a3816ed04bcbbd9aa31c7ce5006878823533f4eca5425218d8e. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66c06a3b-320f-4df1-a818-b051b7e84547.json and https://artists.proofprofile.net/proofs/artist/66c06a3b-320f-4df1-a818-b051b7e84547.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Für die Katz [Ein Fall für Rosa Fink, Band 1 (ungekürzt)]
Aus der Puste [Ein Fall für Rosa Fink, Band 2 (ungekürzt)]
Des Pudels Kern [Ein Fall für Rosa Fink, Band 3 (ungekürzt)]
Der frühe Vogel [Ein Fall für Rosa Fink, Band 4 (ungekürzt)]