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 0x6531c78d4205dbbfc0cc20c5344e3e89b335be9e2f90d8e4aa75ce81c4e42d19. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9be84c9-4d3e-4192-ad48-a0cee818e509.json and https://artists.proofprofile.net/proofs/artist/d9be84c9-4d3e-4192-ad48-a0cee818e509.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Verdi, Puccini, Leoncavallo & Others: Opera Arias (Live)
Mozart, Einem, Wagner & R. Strauss: Opera Arias
Andrea Chénier, Act III: Act III: Nemico della Patria?! (Gerard)
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 0x3302d203c0f226cd37ab78f6c86c550a2b4f666096536de8f134ba769bd241d6. 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/DEB950668214.
Haydn: Die Worte des Erlösers am Kreuze, Hob. XX:2 (Remastered 2024)
J.S. Bach: Orchestral Suites Nos. 1-4, BWV 1066-1069 (Remastered 2024)
Beethoven: Piano Concerto Nos. 4 & 5 (Remastered 2022)
Beethoven: Symphony No. 9 in D Minor, Op. 125 "Choral"
Beethoven: Missa solemnis, Op. 123 (Remastered 2022) [Live]
R. Strauss: Die Frau ohne Schatten, Op. 65, TrV 234 (Live)
Richard Strauss: Ariadne auf Naxos, Op. 60, TrV 228a (Live)
Wagner: Siegfried (Live At Staatsoper, Vienna / 2011)
Wagner: Götterdämmerung (Live At Staatsoper, Vienna / 2011)
Wagner: Das Rheingold (Live at Staatsoper, Vienna, 2011)
Das Rheingold: Prelude - Live at Staatsoper, Vienna, 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4f754df78c4d241ffd8fdc3ab43e53dc8fad47559a75a208d6c0e57623fd73. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN961131001.
Wagner: Walküre (Live At Staatsoper, Vienna / 2011)
The Strauss Dynasty: Favorite Waltzes, Polkas and Galops
Un ballo in maschera, Act I Scene 1: Il primo giudice (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8e86994826045085280718cd7d4528f9765e33be444674b69bfcc2c79dcaac. 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/DEB951998033.
Un ballo in maschera, Act I Scene 2: Arrivo il primo! (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe497e371aa539a0a24f420fcd6e8831f3ba6bfa1486de838afb58221f619234d. 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/DEB951998035.
Un ballo in maschera, Act I Scene 2: Che v'agita così? (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec105e3d2cd03817d5542e3465d8df194dc728c6da34a901b5114031c3ddafb. 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/DEB951998037.
Un ballo in maschera, Act I: Preludio (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x885b6678255f7691235a4103f7249a86665b0834200146fb6dfdbf5922607ed1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEB951998028.
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
Un ballo in maschera, Act I Scene 1: Posa in pace (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b500b855ab81cc1013b9f06151276ac4cf98e9565fa2906c0c759017ea7fc1. 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/DEB951998029.
Un ballo in maschera, Act I Scene 1: Amici miei, soldati (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f02b27c8230fb6b3133fe7d2e982e4aa85c80a4cc61e4f8aa03bd81d5c487. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEB951998030.
Un ballo in maschera, Act I Scene 1: Il cenno mio di lá con essi attendi (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3db1c58f3e38b5aab77bd4d1759e525d63e58c6a3e74e3be5acedf0b17422561. 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/DEB951998031.
Un ballo in maschera, Act I Scene 1: Alla vita che t'arride (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d40233ede81b5df1d58a3d274abca2c81836a0bb6bb3a3b62807f37b0e4af5. 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/DEB951998032.
Un ballo in maschera, Act I Scene 2: Zitti, l'incanto non dèssi turbare (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe595dce4272103fe5046496202cce4b57be5078296e2dd38a08edec867d70639. 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/DEB951998034.
Un ballo in maschera, Act I Scene 2: Su, profetessa (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049ea92c0edce52f31453c95373415ddef5f7e63b762087715cab1140185ef58. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEB951998038.
Un ballo in maschera, Act I Scene 2: Finisici il vaticinio (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1534e981be144bab1ceb99786f329611fa051708f43257f8d6e84d761ea4d7bf. 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/DEB951998040.
Handel: Music for the Royal Fireworks & Water Music Suite - Rimsky-Korsakov: Sheherazade
Paul Schoeffler, Basso, His Greatest Roles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5443aca6047ade4ac56c0213719d580d001ac6fd47cc62d4c5b2d7810ad9314. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USQX92205513.
Wagner: Parsifal: Akt I: He! Ho! Waldhüter ihr
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ba947f33b9010467970d514c970bb53857114772694ccac155467a9d9cc1d4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX92205514.
Wagner: Parsifal: Akt I: Er naht, sie bringen ihn getragen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb72d8d75fceb896e13465cb21ecea34d551282fc008ca8099b0ac9aa11833ea. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USQX92205515.
Wagner: Parsifal: Akt I: He, du da! Was liegst du dort
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe989e8f91783d3c90656767831dfe73354a7ed4ed7a9a71c94b93e7abe81b357. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USQX92205516.
Wagner: Parsifal: Akt I: Ja, wann oft lange sie uns fern blieb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd062622997b8a2ce741af4ef522f6016018d81f9d8d7c360f9e88c9e3651f3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USQX92205517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30198bbb59655ffec104be3cd69b1900fb4d05117c4ce26a33f8a9b68eb54ab. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEB950769701.
Wagner: Parsifal: Akt I: Vor allem nun: der Speer kehr uns zurück
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25b341b137a737a6caae04194da46673850dd5910e388986d213f3a4d88fc48. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:20:25Z), 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/USQX92205519.
Wagner: Parsifal: Akt I: Vom Bade kehrt der König heim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbc1184402068967a9298890a90f8b5af557f3238fe6deafb0924b576e04f03. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T17:18:00Z), 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/USQX92205522.
Wagner: Parsifal: Akt I: Zum letzten Liebesmahle gerüstet Tag für Tag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e995652a816be2bdb8e5ccc99130c0b2413af25b74a95b59b7c7c611b92b36a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USQX92205523.
Wagner: Parsifal: Akt I: Mein Sohn Amfortas. bist du am Amt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3506be35d2335b6e6f8cba5c3868ad6eb3c41f76563c9f113de53d8a1c3fa46f. 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/USQX92205524.
Wagner: Parsifal: Akt I: Wehvolles Erbe, dem ich verfallen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d873892cef79916edd9471669abdde46b777dd9ea0263b72591286e51b9eae5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:50:02Z), 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/USQX92205525.
Wagner: Parsifal: Akt I: Wein und Brot des letzten Mahles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe272b9d3633972eac38f6e7e5a6c8931dc2ee9c2629c004fa6ab173ec59972dd. 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/USQX92205527.
Wagner: Parsifal: Akt I: Titurel, der fromme Held
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf14f331fdc961a2bab02f6e573f9708759309c287229aed1e1efba2c51bc36. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USQX92205518.
Wagner: Parsifal: Akt I: Weh, Hoho, Weh! Wer ist der Fremde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfd0c29dfd6594c1db1c3ee1c62fdfd0964e3e97374b3b973c946970d6b67124. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USQX92205520.
Wagner: Parsifal: Akt III: Heil mir, daß ich dich wiederfinde!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d88e2d267420da0422dd974c9ec5b0e9501b8566f4530185e8eac475d31e21. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USQX92205550.
Wagner: Parsifal: Akt I: Nun sag', nichts weißt du
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeec2b2a54b8a9696f22ade20df9049e238cd57f61821a6d6537c06628287ef40. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/USQX92205521.
Wagner: Parsifal: Akt I: Durch Mitleid wissend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7e2fd3c1194ae78c37ca9e27fa107befa13eda0d7a65b3d804071fce5c2534. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USQX92205526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4fbb49b645833bf1beab62d79d1dca9522fecfd47b5e2e454ed7bb0c342ad2. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/USQX92205530.
Wagner: Parsifal: Akt II: Ach, ach! Tiefe Nacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc74c37b6b678d54228d913295911815de2f507d95c95800e0ca5f8c1dd0024fc. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USQX92205532.