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 0xdeb430540b3da681f6fb7111644742d2415b216259113272f933799641f100d9. 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/557d0510-9307-40b3-a8d4-d9e2d096c377.json and https://artists.proofprofile.net/proofs/artist/557d0510-9307-40b3-a8d4-d9e2d096c377.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Herzenswunsch und Inselträume [Verliebt auf Borkum (Ungekürzte Lesung)]
Das Glück in Paris - Liebe an der Seine (ungekürzt)
Herzensbrecher am Horizont [Verliebt auf Borkum, Band 1 (ungekürzt)]
Herzklopfen unterm Sternenhimmel [Verliebt auf Borkum, Band 2 (ungekürzt)]
Wellenküsse auf Sylt [Meerverliebt, Band 3 (ungekürzt)]
Karamellküsse auf Sylt [Meerverliebt, Band 4 (ungekürzt)]
Ein Weihnachtswunsch zum verlieben [Weihnachtsliebe in London, Band 2 (ungekürzt)]
Im Schatten der Vanille [Die Sansibar-Saga, Band 1 (ungekürzt)]
Herzen auf Sylt [Zimmer mit Seeblick, Band 1 (ungekürzt)]