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 0x586432f2a5a8a4c1d8143585893f3a2ff2050a00deed5a15f76d272b2fe91f5e. 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/f26cba35-25ec-4b37-95bf-9f4cbd4039e7.json and https://artists.proofprofile.net/proofs/artist/f26cba35-25ec-4b37-95bf-9f4cbd4039e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verflucht [Underworld Chronicles, Teil 1 (Ungekürzt)]
Gejagt [Underworld Chronicles, Teil 2 (Ungekürzt)]
Erwacht [Underworld Chronicles, Teil 3 (Ungekürzt)]
Befreit [Underworld Chronicles, Teil 4 (Ungekürzt)]