Konzertvereinigung der Wiener Staatsopernchor
{"copyright_id":"0xd0fc78d7d1494d54cea96954f3ec6cbaaee19cf3b1364ce1fe24bfd8d76a0d11","name":"Konzertvereinigung der Wiener Staatsopernchor","registered_at":"2026-06-12T05:48:25Z","symbol":"NIM0205279","token_address":"0xf20e887494550c4900d2ef6be5620b03f5cd0b91","type":"artist","uuid":"9e7aea7f-041a-499a-8796-2dd952898387"}
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 0xd0fc78d7d1494d54cea96954f3ec6cbaaee19cf3b1364ce1fe24bfd8d76a0d11. 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/9e7aea7f-041a-499a-8796-2dd952898387.json and https://artists.proofprofile.net/proofs/artist/9e7aea7f-041a-499a-8796-2dd952898387.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don Giovanni, K. 527, Act I Scene 3: Giovinette, che fate all'amore (Zerlina, Coro, Masetto)
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 0xfe6b87c114b0d0f0572423e2f1aa71d9d3aba80b4c4a21b6585163391ad7991e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBAYC9004375.
Don Giovanni, K. 527, Act I Scene 5: Trema, treme, o scellerato! (Tutti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d822dcc599decdd803d5f569d41b9bf5f9339bef3b856f22183f0c3470ab10f. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:55:34Z), 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/GBAYC9004404.
Mozart: Requiem in D Minor, K. 626: Lacrimosa
Les musiques de Prodiges - 10e anniversaire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4d24c5b5afbc3643f929a9e106566998bd2b49a7f5c4f282430557a25b0934. 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/DEA802100184.
Mozart: Requiem in D Minor, K. 626: I. Introitus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384ce558fb128866897533960cef34d31264642c3331b0796ec031acf0094682. 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/DEA808204400.
Mozart: Requiem in D Minor, K. 626: II. Kyrie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60571ce820965a5aa1cc66cb18f866ed97862f6e8b0efa2a577668482f234d68. 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/DEA808204500.
Mozart: Requiem in D Minor, K. 626: III. Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d83c562cbc53f369a08f8307eb3bd47afd7eec9c4f09246ca8a983ab507331. 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/DEA808200102.
Mozart: Requiem in D Minor, K. 626: V. Rex tremendae
Rachel Yakar, Ortrun Wenkel, Kurt Equiluz, Robert Holl, Nikolaus Harnoncourt & Concentus musicus Wien
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc935c237e92cc090e9e9273131aa64e199fef5063f743ea9524a89b8d110c5. 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/DEA808200104.
Mozart: Requiem in D Minor, K. 626: VII. Confutatis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf584b7cf768a4a587fca9de25f5bd20fd333f454ae064f525f033d2ab511341a. 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/DEA808200106.
Mozart: Requiem in D Minor, K. 626: VIII. Lacrimosa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e8a8638d59d8d2a5b78a3eeb5abdd6e33cf31cc66e251937ba633a66928d89. 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/DEA808200101.
Mozart: Requiem in D Minor, K. 626: Kyrie
'Badinerie' - Bach, Handel, Vivaldi, Mozart, Beethoven
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69da78810217044ea2fb9f7e0a646b9370e5de4db6f7cf5ab08492ffb667e76c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA802100178.
Mozart: Requiem in D Minor, K. 626: Dies irae
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2dfc99ba9ce16cd1feb5d78fa8ffb04772124f160dda8f72d8bd280cd737a1f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA802100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4d24c5b5afbc3643f929a9e106566998bd2b49a7f5c4f282430557a25b0934. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA802100184.
Don Giovanni, K. 527, Act I Scene 4: Presto, presto, pria ch'si venga (Masetto, Zerlina, Don Giovanni, Coro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c1a8de15cc8836b8c4384a17a768014f990c2c4db3f15c023eede050d28074. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/GBAYC9004395.
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 0x3d081c2cd6492a1ffb60b68ba298b7aaef42a7241506fcb5856a7ec9f3628716. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEA802100177.