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 0xd3dd3260bb3b33aebd31c13fd635231025f0972624b3df242684fea13d8b0bdf. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/955b7dc3-cdcb-4e95-b4b5-a8a6d704757d.json and https://artists.proofprofile.net/proofs/artist/955b7dc3-cdcb-4e95-b4b5-a8a6d704757d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Küstenschrei: Fehmarn Krimi (Kommissare Westermann und Hartwig 1)
Warte, warte nur ein Weilchen (Ungekürzt)
Küstenlüge: Fehmarn-Krimi (Kommissare Westermann und Hartwig 5)
Küstenschatten: Fehmarn Krimi (Kommissare Westermann und Hartwig 2)
Küstendämon: Fehmarn-Krimi (Kommissare Westermann und Hartwig 3)
Küstenwolf: Fehmarn-Krimi (Kommissare Westermann und Hartwig 4)
Küstensturm: Fehmarn-Krimi (Kommissare Westermann und Hartwig 6)
Küstenangst: Fehmarn-Krimi (Kommissare Westermann und Hartwig 7)