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 0x3374250d2f08984adbb0650afe13379fdfd9c1b227cef980a69a15f1b93c13b2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8784fdfa-b4bf-4d74-b66d-75aad5950958.json and https://artists.proofprofile.net/proofs/artist/8784fdfa-b4bf-4d74-b66d-75aad5950958.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Johann Sebastian Bach: Die Geheimnisse der Harmonie - eine Hörbiografie
Die Geheimnisse der Harmonie: Chapter 1 "Armes Waisenkind": Der Ursprung der musikalisch-Bachischen Familie
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 0x29e5a289ff734b5be61480ff4294fee9593eeccae9f42e282501a482147169c9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW72393601.
Die Geheimnisse der Harmonie: Chapter 1 "Armes Waisenkind": Der kleine Sebastian
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c7662be272d7f4f0690907555827424abbfcadbd2c2cf812accb7ee606f8de. 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/DELW72393602.
Die Geheimnisse der Harmonie, Chapter 1 "Armes Waisenkind": Die Michaelisschule in Lüneburg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd466438ded341e3064eb4d6e20d5ffc5d1e5f8daf7d1a880c144a8580005460b. 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/DELW72393605.
Die Geheimnisse der Harmonie, Chapter 7 "Wunderliche Obrigkeit": Das Weihnachtsoratorium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861ae86463aa2aa174bd9b90fb4af1a472196437de36cc83d296098c29866975. 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/DELW72393635.
Die Geheimnisse der Harmonie, Chapter 8 "Es erhub sich ein Streit ": Eisengallus-Tinte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbec4a284c8e3f2e9feb0cd659ed8161ebffc956c6178b3d4ab235c5e78bdf2. 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/DELW72393636.
Die Geheimnisse der Harmonie, Chapter 5 "Regulierte Kirchenmusik": Kantor in Leipzig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dd6e93100073879034ceaa105a2ca8f84fc9db421777b9621a85d0ba1d2168. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELW72393622.
Die Geheimnisse der Harmonie, Chapter 2 "Fremde Töne": Urlaubsüberschreitung
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb501940ce1a07b869795d161ec18f68790f5c52b367d7a00a8a8bac7ede5808e. 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/DELW72393608.
Die Geheimnisse der Harmonie, Chapter 5 "Regulierte Kirchenmusik": Passionsoratorien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cdc9b312aa6e921db694f2e456c70ef8891460a2ac7fbca1715ef08348b56c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW72393625.
Die Geheimnisse der Harmonie, Chapter 5 "Regulierte Kirchenmusik": Das Kreuz mit den Obrigkeiten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e8ec35916303ea5afbebc4b64c780803a7d27f2ee0ea09ef8fffe252e760c46. 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/DELW72393626.
Die Geheimnisse der Harmonie, Chapter 6 "Leipziger Allerlei": Gut gegessen und getrunken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407e059716ec9e1580a186b7129c57da5db286176b4c1e9d520383602e3b8d6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW72393627.
Die Geheimnisse der Harmonie, Chapter 3 "Auf der Himmelsburg": Nachwuchs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903376b3653697d15a8e0c147f3ab0525233e3555415ffc7957ce5eb339d4c7f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELW72393613.
Die Geheimnisse der Harmonie, Chapter 6 "Leipziger Allerlei": Fürstliche Gastpiele
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b1ffff9e6b3cfaa1b86a3d044ac93949c2966096639269ede4d08c5688008a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW72393628.
Die Geheimnisse der Harmonie, Chapter 6 "Leipziger Allerlei": Matthäus-Passion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ade1cd99b389e7005e171478c06e4a5f69c929823f302296fb66f52e7154d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW72393630.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 2: Salzburgs Glanz und Wolfgangs Gloria (1765-1769)
Südwestdeutsches Kammerorchester Pforzheim
Carl Philipp Emanuel Bach Chamber Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffd144f0024c8fb524119b09ff493b81cebf3614558c5abb8a99dc3ab590847. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELW71490602.
Chapter 1: Ein zweiter Mozart? (1770-1792)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c001309db5a9cc194695d19ee5ddcd065dcf529ae47ee071093a69c39420d82. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELW71590701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb27a0b50b9304a11555e7600e769bb0a4e2fc89b9ec80e391a10bc43f67b5d. 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/DELW71590703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d01681dd510201dce2a1a269325120b921909545c93977eb866288c649c3f3c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DELW71590704.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 1: Wunder der Natur (1756-1765)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd0664db01e71764b7d7d355a6d08d929fb6af5f26911c4e56761ab1acacd20. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DELW71490601.
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
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 3: Cavaliere Amadeo Wolfgango (1770-1773)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091eac6ecb0d1ce415df9add34fc9a6c1a215ec206dcdc0f66c18fc5703380b5. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/DELW71490603.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 4: Im Tanzmeisterhaus (1773-1777)
Camerata Academica des Mozarteum Salzburg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92384514bd829cf3ab8a5a5305b0e37ecb046fafd9b70c98cf49948ebd08c46. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DELW71490604.
Wolfgang Amadeus Mozart: Schatten ung licht: Chapter 5: Fort mir dir nach Paris! (1777-1779)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3935e00c9089ac8108e4eac958dd40c5aba4a7debc95cc1fd6207ab6fe28b604. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DELW71490605.
Chapter 2: Unermessliches Tonreich (1792-1800)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ea962a1905f40729edc461ad3823e6d84d9ce9dc4c8d0457a4e62fbd94b2be. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/DELW71590702.