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 0xf56bef63bc27e208538a0d9ee27e5c1e580e1ca826fc0fc691fcc2bcd3cba128. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e02ff67d-8008-476f-b3f7-1b291f1d3efc.json and https://artists.proofprofile.net/proofs/artist/e02ff67d-8008-476f-b3f7-1b291f1d3efc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Grado im Regen [Commissaria Degrassi, Band 2 (Ungekürzt)]
Grado im Dunkeln [Commissaria Degrassi, Band 3 (Ungekürzt)]
Grado im Nebel [Commissaria Degrassi, Band 4 (Ungekürzt)]
Grado im Sturm [Commissaria Degrassi, Band 5 (Ungekürzt)]
Grado im Mondschein [Commissaria Degrassi, Band 6 (Ungekürzt)]
Grado in Flammen [Commissaria Degrassi, Band 7 (Ungekürzt)]
Sag mir, wen du hörst. Sag mir, wen du siehst. Sag mir, wer du bist. [Thriller (Ungekürzt)]
Grado im Licht [Commissaria Degrassi, Band 1 (Ungekürzt)]
Grado und die Tote in der Lagune [Commissaria Degrassi, Ein Adria Krimi (Ungekürzt)]