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 0xd86aed488280034bb8fb1bb2dce42a89026e513fce17d2b8384636817d2205fd. 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/49b5127e-5b54-46d4-9112-905b6acfa4c3.json and https://artists.proofprofile.net/proofs/artist/49b5127e-5b54-46d4-9112-905b6acfa4c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Der Pirat [Ein Francis-Drake-Roman (ungekürzt)]
Die Pranken des Löwen [Die Robin-Hood-Reihe, Band 1 (ungekürzt)]
Kapitel 1 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xcb2353a880c6b1e445558efb1a8e3d11e6a44849a993b6980dd7458c5678c4bb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225476.
Kapitel 12 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b4349a58dca9825aef3294fb231543e7a790f3cd09e4d6fe6aa32b3d8c0d94. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225487.
Kapitel 15 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cbe08ccfb2e294b7eb022630c1b161c670557de848574cd51940eda35ce5b94. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225490.
Kapitel 16 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a5037fe70e08f11cfd9184b41d74741e854a361f60c252fa9d48a47e64458c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225491.
Kapitel 21 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22433952a1a5796623376ee2401c8d0ce0101b5d38817a5064d6c1fa50dcc69e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225496.
Kapitel 22 - Die Pranken des Löwen - Die Robin-Hood-Reihe, Band 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20e4eafb221a2a67eca1eae5902d0d2c0692421f49fb01ca9b95d7922a39de5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXO32225497.
Das Herz des Löwen [Die Robin-Hood-Reihe, Band 2 (ungekürzt)]
Sie nannten ihn Cid [Eine spanische Legende (ungekürzt)]
Das Blut des Löwen [Die Robin-Hood-Reihe, Band 3 (ungekürzt)]
Das Banner des Löwen [Die Robin-Hood-Reihe, Band 4 (ungekürzt)]
Der Sohn des Löwen [Die Robin-Hood-Reihe, Band 5 (ungekürzt)]
Jack Bannister - Herr der Karibik (ungekürzt)
Captain Nelson - Unter der Flagge des Königs [Lord Nelson - Über alle Meere, Band 1 (ungekürzt)]