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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97345d1faddae267980153b0a312a1b8a396b9186175d366a34b6eac183987a8. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f71058d-906a-43ea-9cfb-eb7b5f1463c0.json and https://artists.proofprofile.net/proofs/artist/7f71058d-906a-43ea-9cfb-eb7b5f1463c0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Die kleine Pension im Weinberg [Die Moselpension-Reihe, Teil 1 (Ungekürzt)]
Einladung in die kleine Pension im Weinberg [Die Moselpension-Reihe, Teil 2 (Ungekürzt)]
Wiedersehen in der kleinen Pension im Weinberg [Die Moselpension-Reihe, Teil 3 (Ungekürzt)]