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 0x5bff89a8d835d259b9b294814d6ada1aed141a0ea9533532448cf7a0e86aef6a. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a172a203-fc1b-46f5-a096-00f4e55f4d36.json and https://artists.proofprofile.net/proofs/artist/a172a203-fc1b-46f5-a096-00f4e55f4d36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Wahnsinn hat Spätschicht! [Die Wahnsinn-Reihe, Band 1 (ungekürzt)]
Der Wahnsinn macht Kassensturz! [Die Wahnsinn-Reihe, Band 2 (ungekürzt)]
Der Wahnsinn rechnet ab! [Die Wahnsinn-Reihe, Band 3, Das Allerletzte vom anderen Ende der Servicewüste (ungekürzt)]