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 0x6dc8b26fed97b5a5785ecb3af5fbf7cbbf9efaeca09a1f53196f7dae45696ec5. 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/214c2267-1615-4770-9ca4-f205afbddd5e.json and https://artists.proofprofile.net/proofs/artist/214c2267-1615-4770-9ca4-f205afbddd5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rosenkohl und tote Bete - Schrebergartenkrimi [Manne Nowak ermittelt, Band 1 (Ungekürzte Lesung)]
Rosenkohl und tote Bete - Schrebergartenkrimi [Manne Nowak ermittelt, Band 1 (Autorisierte Lesefassung (Gekürzte Ausgabe))]
Amsel, Drossel, tot und starr - Schrebergartenkrimi [Manne Nowak ermittelt, Band 2 (Gekürzte Ausgabe)]
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Hochmut kommt vor dem Farn - Schrebergartenkrimi [Manne Nowak ermittelt, Band 3 (Ungekürzte Lesung)]