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 0x07a5de2b3b051b523b6be2ba7f960805d69882d828cab38bf89cb650866cb1d8. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bd6f6df4-bf2d-4204-9aba-0b30b3803f4c.json and https://artists.proofprofile.net/proofs/artist/bd6f6df4-bf2d-4204-9aba-0b30b3803f4c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gelobet sei der Herr der Gott Israel: No. 4, Gelobet sei Gott. Wir litten des Feindes gewaltigen Trutz
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312ebea4bfea6bd4ceb9a3a80ecd658c45d75fe0afe513e876fac952938e7aac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB202254304.
Laß dich's nicht irren: No. 2, Der arme Lazarus - Stirbt der Reiche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8352b3f6a6e2d937e7e718316d14127b87be0456f6015c1766ecd120ce44d6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEB202254310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73621d6271091848590a249483afdee4469a9416f0635496d831b41b1d85f63d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEB202254315.
Gelobet sei der Herr der Gott Israel: No. 1, Sonata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952703c4688641f1137847c948fd62cc6d492bbe1709351be03550eecd1abd21. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEB202254301.
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
Gelobet sei der Herr der Gott Israel: No. 2, Gelobet sei der Herr der Gott Israel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898063cf6539f589905ee34fe79ce6af701d59ea06c30daeecd591286254f034. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEB202254302.
Gelobet sei der Herr der Gott Israel: No. 3, Gelobet sei Gott. Wir lagen in Sünden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d29c917fc240cc58a843d67f72b84d0ed73a7414136bd42751b0cafd73688a2. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/DEB202254303.
Gelobet sei der Herr der Gott Israel: No. 5, Gelobet sei Gott. Wir waren zu Sklaven des Argen gemacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2812a9fd86b0339bab12cac63caae7e655a3c71fda7908b3d509c3717907a9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEB202254305.
Gelobet sei der Herr der Gott Israel: No. 6, Gelobet sei Gott. Was seine Gnade den Vätern verspricht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5571362d7643109186a630237d09df5d080e9963a095e7bde2f8241615fa82bc. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEB202254306.
Gelobet sei der Herr der Gott Israel: No. 7, O Aufgang aus der Höh'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987ffd56773f357e7dbd839384fce7ea11e976c1e906ff6fc8f47692bce4aa99. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/DEB202254307.
Gelobet sei der Herr der Gott Israel: No. 8, Erleuchte und zeige uns Gnade und Friede - Gelobet sei der Herr, der Gott Israels
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaad25df142449639bbc12ee1c5901b35b6acad7bfa1b4c3385b60572b0d5ffe. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DEB202254308.
Laß dich's nicht irren: No. 1, Laß dich's nicht irren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf920c85cac509b1d6ca0f18b70e4edd7e75a4d0230a3ca6a2f8a5c43e4de4e3. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB202254309.
Laß dich's nicht irren: No. 6, Fahr hin, o Welt, fahr hin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa907b11e69889e3459664953f9c1fe1eb3822b1faf4d6a19d6e4a41a90e512d. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEB202254314.
Gott ist unser Zuversicht, S. 43: No. 2, Darum fürchten wir uns nicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a55750c766375c8195c7ab729d3524032fe579e304f944568c94b14abaaf188. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEB202254317.
Gott ist unser Zuversicht, S. 43: No. 3, Dennoch soll die Stadt Gottes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bd8b75960e2669feaccc875c61741523de1d14476fe77f287796abefd55cb2. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DEB202254318.
Oboe Concertos at the Court of Thurn and Taxis
Baroque Christmas Cantatas from Central Germany II
Handel: My Favourite Instrument – Concertos, Sonatas & Arias with Oboe
Sonatas from the Dresden Pisendel Collection
Oboe Concerto in F Major: I. Tempo comodo