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 0x2d4ce0e98f3a4811b32f72ecdc72bfede4bc31c0161a3901322ef78cb1fb7260. 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/8d91a2c6-243b-4d6f-8eec-88e6b26e9894.json and https://artists.proofprofile.net/proofs/artist/8d91a2c6-243b-4d6f-8eec-88e6b26e9894.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xf61e0a084ea6f5eb5d7a3b5769904c19747ace3a533cf0f258d69a2173e6315d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca857c81798d3de9a0643f9eb75b201dabe0ef6241dd17534ca1c0fbaf06b98. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4eff1f3630b71586b62720206d26c484d520ed6de7bd3d8bf56fc19082c3ae. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae0d9053a6199d022d7fe8fd1a7043f2852f9d10ff04cbad6db623b18dc5472. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232b09dae11bbd6b98e23f2f7a805a48d994de9c14e87aaefa85b2a2e67bb5e3. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca857c81798d3de9a0643f9eb75b201dabe0ef6241dd17534ca1c0fbaf06b98. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300002 — a six-check JSON result.
Liszt: Music for Two Pianos. Réminiscences de Don Juan & 2 Episodes from Lenau's Faust
Liszt: Réminiscences de Don Juan, S. 656: I. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaed7d0dff6a7378cc6711da0d38ec389dc8edc604ab7a970cf69ed48fd40b93. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302399 — a six-check JSON result.
Liszt: Réminiscences de Don Juan, S. 656: III. Duetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95edb560d3a5a67e38f6ceab648ab226bf2e728dd591bddc28e104b4298b1bb6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302401 — a six-check JSON result.
Liszt: Réminiscences de Don Juan, S. 656: V. Variation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496a1c188a87fbc67aead1e6df15d9af23a816973751e8994326c81e68ece8c7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302403 — a six-check JSON result.
Liszt: Réminiscences de Don Juan, S. 656: VII. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6e3767d2913a3db8c3e7ff66601446959f56bc1ae23bcbb1700c4a5384c3c7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2302405 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 1: I. Le café
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539c8bbbc5d9841cadadd9123767d6a1138be6aaff5e2727a8fb49ee9fbeae20. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300006 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 1: II. La route
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39a45d38aa87436def4d183acfaa8fe223c79ed63aed9f13cad1bed0d4a86d3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300007 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 1: III. La chambre d'Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe22476ec1b3fd4f30ffa4cf0542937b744046b9e67dd7bba132da527d55414e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300008 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: IV. Chez Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc57efdc0aa8309d7790351e9d1f26eefbe81670b12ca095cbe2777b3b9724f7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300009 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: V. Le voyage aux enfers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc961ac71ba7fbc1cb2364f6d9c54bd38739975d68ddc4789f5a4cbcc022b7efa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300010 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: VI. Orphée et la princesse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd669a6ab1546cd3fd2d300a3a259721e337dcc07e01502ff7e003dce328e6943. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300011 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: VII. Interlude musical - Le retour chez Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d745ec3e1bc2d760408390a338191295a8be1f739e2649b7755d3b713b0902. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300012 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: VIII. Le studio d'Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d60472f110ae09a912b2cf311b6cab9af12b35eced0e3bbd8e3000c59dbc17. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300013 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: IX. Le retour d'Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9230095005585da82110cc514f770604c750e6d6599cb0cbddef28f2f5319bfd. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300014 — a six-check JSON result.
Orphée - Arr. for Piano duet / Act 2: X. La chambre d'Orphée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69fbcca23346098e78641870d2bc9eeea5e2f08c42c6275891147af1f8163d7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300015 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: I. Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b85c61507a16635cffeae1bba558f2720d752634848501e361ecc99d7e76e0. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300016 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: II. Les soeurs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c5eb455b0d2de0e714a799f1004f19cb67c6171773af2ade25d561a9eb56bb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300017 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: III. Le dîner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4618138a930621f4387ead13321d3728cf585ec47f3e9196780e314b8afbb198. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300018 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: IV. Promenade dans le jardin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4665dc7db60ad30932720a70f2733df8abdeb06bcdcca0c908397823bb21722. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300019 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: V. La saisie des meubles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143945ad3a6bb26d882e9663a91cf169a9b374b59e5fddcd3ebf53b64adb3cf8. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300020 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: VI. La confiance de la Bête
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46413b1236c08589712bd5c7c3823ec21a3df6d3f0bb2c80f85a24e6b0be6d00. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300021 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: VII. Le miroir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a856487b69773997318f9c0913ea761b4913907acfc5ddc42307ca916ae6055. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300022 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: VIII. Le pavillon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3ebc361c6342c622e7570c72d6ffd47ac62c6d06b4a1b42a34ec3f94caa335. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300023 — a six-check JSON result.
La Belle et la Bête - Arr. for Piano duet: IX. La métamorphose
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba95c867f4b107b5f06767588bf234f86922a470bcd2612b7feaadace6b0393f. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300024 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: I. Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f76e651d891885126bd0d2ea9f268c941ab696ee5bf1c970b3b3d771585b4b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000001 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: II. Paul Is Dying
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb753a807e4462c1395ba681f37b47a1e30820ab278c4f8e73d60de86fbc589a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000002 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: III. The Somnambulist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf22a7711cbbe0e4993e35768b1f7b42595194d17176ae769ba6b1bfbfcc79bd0. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000003 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: IV. She Slapped Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c78fd3aa3e7044af93539a9c97a5961d73418e713b33bd5d40631a7324374b3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000004 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: V. They Lived Their Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131894ba30fb2340f52d849462ac1dee983e77d00e6564e73b1ff554d496a1a1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000005 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: VI. Terrible Interlude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20dff9feecc020b8a90054bd63e38f2fcce1f217419070137522f9e4f397778b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000006 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: VII. Cocoon Of Shawls
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64db5ca5e1e24ff530ebe48706b6214776163d76926636f63211dd183dd5d522. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000007 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: VIII. Lost
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c6cd10c3935c3bfd02d246142483f677a944ee5f1420ea9931d085d53c6318. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000008 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: IX. Are You In Love, Agathe?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f9867f9c7fbabb4439e74c53eda3748eb48fdb3422b4b25b1242000009cf42. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000009 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: X. She Took The Path
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95762d6a635868ea238dabde5346de88bd3e434f94b40745197eb6cba3c46e1f. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000010 — a six-check JSON result.
Les enfants terribles - Arr. for Piano duet: XI. Paul’s End
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02eb2c621e488334ba24501dc14e41e772d78ae36652da21f8e93a5cc85874e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902000011 — a six-check JSON result.
Gershwin: An American in Paris (Version for Two Pianos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14dc0106edc5f5b6a5f0af106f73800920b9aab0d5382055f0d431e6881a47b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8400851 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 1 in G Minor: Allegro molto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d3081725c9460b4f4adc4a293b121ab426959eb5d71eea81e2e117f953d7db. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127001 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 1, L'escarpolette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b9ac5a590f2c9f3ffe41cecf706bcda87d1f37370fd09dbd4e2bea4d62ef92. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692101 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 2 in D Minor: Allegro non assai (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c6b894133691992cddc853ea71d713f2c0fbfff9e83945b651748ad88ee8a5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127002 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 2, La toupie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07fa307162b1c884b61a118bd797ddb0c984a149b19df3a297c9afd3f534af6. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692102 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 3 in F Major: Allegretto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53808b3d6ca19573401841cccecbfb5d1f40381134eadadd4d6c7cc45adb9d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127003 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 3, La poupée
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d916d22b8d9d0aaf907ef0afddf8b46ca9040d995777374de2996e792cf0f9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692103 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 4 in F Minor: Poco sostenuto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af3fa429d339ee1184a36b6a7aab5e8cd2de3b64a5bfd8fe60bc646edeadfa0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127004 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 4, Les chevaux de bois
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976d9ea743450a8d41cac23dc20831b995fa6b142245e0d178f73784b247b1a4. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692104 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 5 in F-Sharp Minor: Allegro (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47c64564bc64b9be9988fd55274deda8b56a334a4c6d2f14ec3d9c862b67345. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127005 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 5, Le volant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b41d4410d2a8fec3bbb2cf44348cdc89e235786f7c1399ce24340baa2a1285. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692105 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 6, Trompette et tamboer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8324df872ea0954c6895b24c1ef267f6075db6364b0af1d60dbbf7726f5e6fa. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692106 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 8, Les quatre coins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4662d6d3d3b7cd7a79462c9c1702326eed8cb69bf433eba990a63f3c868b6b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692108 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 10, Saute-Mouton
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e601966e044cad1bb432b0eef3efe8f20c91148247746b8fe2a53477f5a0239. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692110 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 11 in A Minor: Poco andante (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4293054934a571601473f9d6c2914c44bc24efe6d51c99595f333b16e353a9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12d1342eb7b4b1a558f605ebe967799a23e3dc95197b12872e01d759dd9c90. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692112 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 13 in D Major: Andantino grazioso (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a331e401f3932e775917755ed34f27e9d736111f9f129ba91613408f0c37b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127013 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae649431889941e47bc178985ff810e6475ff44908983108b867fc1bf5c29b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692113 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 14 in D Minor: Un poco andante (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf548e88c0c143a1578abb14906cd82fbd6825664a271b02d74eb3a70fe361a62. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127014 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 17 in F-Sharp Minor: Andantino (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9c22a0bf021052d8e5fbff1e3f3f6e0adf0ae75be460e2fe1c019749eb54d2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127017 — a six-check JSON result.
Gershwin: An American in Paris/Fantasy on Porgy & Bess
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e8f1c342801e4906b3b8531f6ab3f3c856e645388569a699cbba620aea631e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509604704 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b68b959c51111f365bf1b430cc441bc0d98f6c30329c7f6f6bf9c527b9787a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509604705 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64630999fbd3f8e4c68df21680edb83363302bf09a42648a1313da80c2f82bbc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509604706 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f33c130ffba3886e4b94583753adb6f341ebd4aeb3c8339f35f338cd363230. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509604707 — a six-check JSON result.
The Sleeping Beauty, Op. 66, TH.13: Valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c99adecc091f942a2c1baa492125048152a3bff315c01e80c2049eb4d7f35a3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509300510 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46bb4250a6cabd304b6e18c5a729c614d8efb218c074d440cfca04a9c761528. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA509300209 — a six-check JSON result.
Mendelssohn & Bruch: Concertos For 2 Pianos
Mendelssohn, Bruch: Konzerte für 2 Klaviere
8 Slavonic Dances, Op. 46, B.83 - For Piano Duet: No. 1 in C Major (Presto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002d88f6aab4230f5fedc0d65f7195c000ebfdf200f9aef78d3c09674084437a. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808801 — a six-check JSON result.
8 Slavonic Dances, Op. 46, B.83 - For Piano Duet: No. 2 in E Minor (Allegretto scherzando)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0b66177bea55b51a95449fd2c8928326c01535d71c188d41c32b052c80a11d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808802 — a six-check JSON result.
8 Slavonic Dances, Op. 46, B.83 - For Piano Duet: No. 7 in C Minor (Allegro assai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122475eb62ac610491c4011a9f4fb1dae51d2839be10caef149f85ee1360e5c8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808807 — a six-check JSON result.
8 Slavonic Dances, Op. 72, B.147 - For Piano Duet: No. 2 in E Minor (Allegretto grazioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8158607e1b2122c76e1da2f93cfeecd7ee0983f439ca3b2678dc131b7263b3e2. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808810 — a six-check JSON result.
Poulenc/Milhaud: Concerto in D minor for 2 Pianos/Scaramouche etc.
Concerto for 2 Pianos and Orchestra in D minor: 1. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001acc2c68d18a644ea30b2566633e040372eb923e57f21442200505a5e4cce9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908701 — a six-check JSON result.
Concerto for 2 Pianos and Orchestra in D minor: 2. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93ae5b748d6b96196c1f958faf29768c8b9434adcae3072fd5a484c40fb0fa3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908702 — a six-check JSON result.
Concerto for 2 Pianos and Orchestra in D minor: 3. Finale (Allegro molto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef54500ac9287930f5015594c3196906325fdb66c546dbd544c23cea0b702ba. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908703 — a six-check JSON result.
Sonata for Piano 4 Hands: 1. Prélude (Modéré)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd25cbdd41d20949858511024e5c25183d0a3eb72a064f4d545818dfd5fa97f4b. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908704 — a six-check JSON result.
Sonata for Piano 4 Hands: 2. Rustique (Naïf et lent)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4080007ab519d9a2277a1f8c50214a5c6baac23b4a149b9efae9a7f679c742ef. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908705 — a six-check JSON result.
Sonata for Piano 4 Hands: 3. Final (Très vite)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x405f0ba0c0446d71f9b20f350087edd5728c046f08a7c06ad47ba5682417e912. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908706 — a six-check JSON result.
Capriccio (d'après le Bal Masqué) for 2 Pianos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7325ae4511aba5ac1800cf477df64e4a754045f294fdcc9eeff8bbd566c57223. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908707 — a six-check JSON result.
L'embarquement pour Cythère, valse-musette for 2 Pianos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ffda028d36b62ae5f5ff22d576992689b3faa1a59e8a292f5f5d4a42c303f9. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908708 — a six-check JSON result.
Elégie (en accords alternés) for 2 Pianos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41afdae50cf1662863ebeb80a19f31a9f6a760ce31254379868690b678a61a09. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908709 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22fcc964eaab9f23352f0c98508f69880101a655cbee6fa23b9de66a2ad20974. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908710 — a six-check JSON result.
Scaramouche, Suite for 2 Pianos: 2. Modéré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665a634f63b9ae5f8d9cce38b6342365297d6f52a5c0660077676886d5a92f25. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908711 — a six-check JSON result.
Scaramouche, Suite for 2 Pianos: 3. Brazileira (Mouvement de samba)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba2a7ce0e49e81fc8ab417bd941d6043bcdf19e81c2742d396a87dddfcbad25. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908712 — a six-check JSON result.
Piano Concerto No. 10 In E-Flat Major, K. 365: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf391fe1632fd1da2fe81eddb9b219932909f1dc5eae29b11d5f88e29447e36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808201 — a six-check JSON result.
Piano Concerto No. 10 In E-Flat Major, K. 365: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260985d4f81e677dd7c3b063ef78b471c6ca4eea4ae9ae4b54484c09f21a7075. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808202 — a six-check JSON result.
Piano Concerto No. 10 In E-Flat Major, K. 365: 3. Rondeau (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff9bf8c7789156b7ec210e0224c573459a0b8079bcd6fddc6e6370d3461e2a9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808203 — a six-check JSON result.
Piano Concerto No. 7 In F Major, K. 242 - "Lodron": 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aac0ce5efe233982c50923f97753a214031cbb8b6c6182e402a71a01b16b525. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808204 — a six-check JSON result.
Piano Concerto No. 7 In F Major, K. 242 - "Lodron": 2. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf73be49182f2c9bed95ded92460b83a26634a26d551f75174aaf981422a102. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808205 — a six-check JSON result.
Piano Concerto No. 7 In F Major, K. 242 - "Lodron": 3. Rondeau (Tempo di menuetto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1ba9deb7f9d021d88ce6b6ceed1d68111a5da4a6205327310b252da813efc0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508808206 — a six-check JSON result.
Stravinsky: Concerto For 2 Pianos; 3 Movements From Petrushka; 5 Easy Pieces; 3 Easy Pieces
Bizet: Jeux d'enfants / Fauré: Dolly Suite / Ravel: Ma mère l'Oye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07fa307162b1c884b61a118bd797ddb0c984a149b19df3a297c9afd3f534af6. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692102 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976d9ea743450a8d41cac23dc20831b995fa6b142245e0d178f73784b247b1a4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692104 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8324df872ea0954c6895b24c1ef267f6075db6364b0af1d60dbbf7726f5e6fa. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692106 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 7, Les bulles de savon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515e9f451f8afb6f2f932c137d92419cd145f65f92cdbe920ef4c50b2f1471ed. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692107 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 9, Colin-maillard
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a56522582d2ae5bea36e70e199bd0814fc870f07421371294f6ad0dcf97477. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692109 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e601966e044cad1bb432b0eef3efe8f20c91148247746b8fe2a53477f5a0239. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692110 — a six-check JSON result.
Jeux d'enfants, Op. 22: No. 11, Petit mari, petite femme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71eb4129f4d8fb9738d474b94d804815ae3942865fb8b63f3aa5ae6a4efca2d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692111 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf12d1342eb7b4b1a558f605ebe967799a23e3dc95197b12872e01d759dd9c90. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692112 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37437a82e9a67e63a93847f8a0421dbf8c1e784e95447002e317467b464c9545. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692114 — a six-check JSON result.
Dolly Suite, Op. 56: III. Le Jardin de Dolly
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0563f754bb41f797db3a4f775b0e2ec840c551fbb98ff4815a2dfd294cf68356. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278fb415d4e5b94598a82ddea6b4e3a788d0bd4e45f920e0eeb05d37c6a1b754. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692117 — a six-check JSON result.
Dolly Suite, Op. 56: VI. Le pas Espagnol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1c3adeafaa0e89af403219a6a704f2518db687bddd846f4fc0fceab8546d82. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692118 — a six-check JSON result.
Ma mère l'Oye, M. 60: I. Pavane de la Belle au bois dormant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea9140a8ca3318df58fca309bb85d1d2ca6055acfe727f8311c55bd8e34e856. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692119 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdf00d8825340280f3d94581ac4ae9fcfedeb92923fe12ac69e6c4eb4720943. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692120 — a six-check JSON result.
Ma mère l'Oye, M. 60: III. Laideronnette, Impératrice des Pagodes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f81b23503ac8a877f6c861a07bc2f00697b22a11e961361b37b276014f2e6c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692121 — a six-check JSON result.
Ma mère l'Oye, M. 60: IV. Les entretiens de la Belle et de la Bête
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf877697bc0937e4bf882cc8c7657ebe9551b613e03a54ff3f3b83bfe5bc3b0b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692122 — a six-check JSON result.
Ma mère l'Oye, M. 60: V. Le jardin féerique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b9435ce33fcf20087758ccd0f2a2f653f2797c11c76081dd091bcccd098347. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692123 — a six-check JSON result.
Gershwin: Rhapsody in Blue / An American in Paris / Cuban Overture / Lullaby
Rhapsody in Blue - For 2 pianos & orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18351154098b545fc72dc758a38b6bf024d65d24c3735d6b20ca8dad1e9e59c3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078510441 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0009fa08a75d59a043a9c96622cd23990fe1ed195381b3926bff65818a832818. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078510451 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdb252021ee03e4ff4949349dd9a82ee27edd423d7cd2e88b20f2af2cff6f8f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078510461 — a six-check JSON result.
Bartók: Concerto for Two Pianos and Percussions & Sonata for Two Pianos and Percussions
Bartók: Concerto for Two Pianos and Percussion, Sz. 115: I. Assai lento - Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa452257e09bd326527ae2fe5f055a4b2d0f58f1b5d5882adeddf33652d2ca0e5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8500002 — a six-check JSON result.
Bartók: Concerto for Two Pianos and Percussion, Sz. 115: III. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4e116d5f18cb2f121d900b83c2f713c31f0bcdf0adc5dce621f8447f6aa1ea. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8500004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62bad0cac765dd502c1c0f36492e93cc50ef446f0b5bdf5b32b1a9f8e66e7fc. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200842 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e224b8b399d55296cd929fb0ce1f0c4769eeaf7d7e78bfd572c6fc92a02cd2. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200847 — a six-check JSON result.
Prokofiev: Pierre et le loup - Saint-Saëns: Le carnaval des animaux
Prokofiev: Peter und der Wolf - Saint-Saëns: Der Karnaval der Tiere
Gershwin: Rhapsody in Blue; Piano Concerto in F
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6204d35c4060ac2b3d7b15331173836ee2fea1cdc52dda95453d951164e137a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508101101 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c6b894133691992cddc853ea71d713f2c0fbfff9e83945b651748ad88ee8a5. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53808b3d6ca19573401841cccecbfb5d1f40381134eadadd4d6c7cc45adb9d9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af3fa429d339ee1184a36b6a7aab5e8cd2de3b64a5bfd8fe60bc646edeadfa0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47c64564bc64b9be9988fd55274deda8b56a334a4c6d2f14ec3d9c862b67345. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127005 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 6 in D-Flat Major: Vivace (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ec9b9f818617cecbcd3a4f8e8f588f3f4d705c4ddf26a81f04cea89a140200. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127006 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 7 in A Major: Allegretto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8dcde4193525e28cbb241c409ae320368fc8fecd5c8dd9a7406f8f18de279d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127007 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 8 in A Minor: Presto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7972a17a48edd7bbd2e8b371c93bb3b3ea640fe3a602916e6820e0611f3afae4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127008 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 10 in E Major: Presto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb5e03fc86f4f952cffef36a41570d748c7a2f42c188d5b5146303c53b468b5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127010 — a six-check JSON result.
21 Hungarian Dances, WoO 1: No. 12 in D Minor: Presto (Arr. for Piano Duet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd99a5734edab2e6ce9531937b903ed080ab8f582d003d7d5dffe2af840efdb. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508127012 — a six-check JSON result.
Bartók: Sonata for Two Pianos and Percussion & Pieces from Mikrokosmos
Glass: Orphée: III. La chambre d'Orphée / Act 1 - Arr. for Piano duet
Glass: La Belle et la Bête: VI. La confiance de la Bête - Arr. for Piano duet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46413b1236c08589712bd5c7c3823ec21a3df6d3f0bb2c80f85a24e6b0be6d00. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61e0a084ea6f5eb5d7a3b5769904c19747ace3a533cf0f258d69a2173e6315d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27363ecfcea1eeed64f9e0ef55a99d027348b8fb047ca6d4133a82801f8f9d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400014 — a six-check JSON result.
Mozart: The Piano Concertos (12 CDs, Vol.7 of 45)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27363ecfcea1eeed64f9e0ef55a99d027348b8fb047ca6d4133a82801f8f9d. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075307bc889b4ff654b7ffae98066b6edc15dec7dc83b1bc4e6e1cc9497afe59. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4895895bdcf6f1ad4b1bac1d0230d5f402340b057de406f2e98993817da34a6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5819ce0b984a93e4cf352ce392d747c8c658f5a24cf4d043dd451b8a2915f108. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f14854cfeb0543f474a1f165eb078b2fd49688ab66812a837cdb5a581abfea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4cfac1a0ffb384466ebacddd05deb71b710d8e5b7299407a199c31462ccc0e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463322f1ba3802a3b819d0ecb27785870a6fe25d294e0f6b947774dacac8a0b4. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557aed437e2fe96d2c096774967a968d1007cdbf3e33c09e92ecd90ffae4125d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd24537cbb753796224a172c411f05aa16f9ea19e080885b88938546884a95. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc49f8ad1bfc64171ebf8543b2ed8ec8de9ec4f2cb393a089b3b62ff6cbf98f7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de187b8e40f3274e10dbc3d7c80f93b5836a0863c1ce59aacb082c4b4763b15. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977bcfd247c47d041b142fcb92c738649c32386bc02a501e52bf0ee1b39de10f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400013 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe4eff1f3630b71586b62720206d26c484d520ed6de7bd3d8bf56fc19082c3ae. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232b09dae11bbd6b98e23f2f7a805a48d994de9c14e87aaefa85b2a2e67bb5e3. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902300005 — a six-check JSON result.
Glassworks: VI. Closing (Arr. for 2 Pianos and 2 Guitars by B. Dessner) - Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1517943418cf9b5527f4aab3fe1680dacc16a8390498a54218abb82aeda32b8b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb27363ecfcea1eeed64f9e0ef55a99d027348b8fb047ca6d4133a82801f8f9d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4895895bdcf6f1ad4b1bac1d0230d5f402340b057de406f2e98993817da34a6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5819ce0b984a93e4cf352ce392d747c8c658f5a24cf4d043dd451b8a2915f108. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f14854cfeb0543f474a1f165eb078b2fd49688ab66812a837cdb5a581abfea. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4cfac1a0ffb384466ebacddd05deb71b710d8e5b7299407a199c31462ccc0e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463322f1ba3802a3b819d0ecb27785870a6fe25d294e0f6b947774dacac8a0b4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557aed437e2fe96d2c096774967a968d1007cdbf3e33c09e92ecd90ffae4125d. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcd24537cbb753796224a172c411f05aa16f9ea19e080885b88938546884a95. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc49f8ad1bfc64171ebf8543b2ed8ec8de9ec4f2cb393a089b3b62ff6cbf98f7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de187b8e40f3274e10dbc3d7c80f93b5836a0863c1ce59aacb082c4b4763b15. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400011 — a six-check JSON result.
Glassworks: VI. Closing (Arr. for 2 Pianos and 2 Guitars by B. Dessner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068c44541c47a387c019bec654126fc7495a166e818abffa408844aedf40e9d3. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400010 — a six-check JSON result.
Moment Musical, Op. 94, D. 780: No. 3 in F Minor - without Applause
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf05d6a49175c0a101daed02c571220f6c3b7cdf4c2214f0bed881bdd187069f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11608251 — a six-check JSON result.
Cantata, BWV 167: Sei Lob und Preis mit Ehren
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b6884bb29ab2ceda59b8400ffdec1bddf8db9bca3eefcef40b09e085f59450. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM19805577 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6996c74f51215f68916a5bb5cc3dcb8dfd559ea08517e3db2e7080bd56b6eafd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12407841 — a six-check JSON result.
24 Preludes, Op. 11: No. 21 in B-Flat Major - Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbe7e57cfa83d48bff2f6059c0a390944b4f02c743a2bcf2ae17ea227dd454b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12404417 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ce7c4a69be1a1901f9b8c9831a7da8f1a3871fad16e95aa2e26d6aa5f6043a. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92403950 — a six-check JSON result.
Waltz in A Major, Op. 39, No. 15 (Version for piano 4-hands)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4061134f320f2a166e1e9b9db3f2112b8c3a1fb72cdccd7405b7cc09f62c5f12. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92401779 — a six-check JSON result.
Purcell: Dido and Aeneas, Z. 626: When I am laid in earth (Dido's Lament)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7306c1e3e9ed9d7f5bfcababe6dfc35a1d48bdb7934ebbe89b01c471d49621cc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12308718 — a six-check JSON result.
Keyboard Concerto in F Minor, BWV 1056: Keyboard Concerto in F Minor, BWV 1056: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63102813c577828818a097ae1e898243a3ddf19f864a6787bf36dc6216613646. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10311909 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc556f878d81400fb01e8835f73696d8d4de3ccb7ca8a16c2d54937db1d758a32. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC19802926 — a six-check JSON result.
24 Preludes and Fugues, Op. 87: Fugue No. 7 in A Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea10a7ccbcab832c7846527ec81190fa724b42dd89a7d8d4584e24f70cf8ccc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12005415 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a31ef8697dc5ee3b0a47ff8049a9ff0847db2f7eb630f756a45a1dc4b37ff7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12101480 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8349f548992c9853a0d40bb27261213b33aa6836d9dfe6b9dfd5949c843c7de. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92203831 — a six-check JSON result.
Prelude in B Minor, BWV 855a (Transcribed by Alexander Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7318452b71a81085c12260502601e38c08afb538531db6d800409f7b907b9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12306662 — a six-check JSON result.
Lyric Pieces, Book III, Op.47: 3. Melody - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7881deda8146ae86ec51098aaca864d0f3e70b853c0fb8b86978a2d9a3f16e35. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11600078 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf75a52e8ea4b6946e8a54522325d5c615a7d8a175b50551f68e28045f54594. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10901089 — a six-check JSON result.
Cantique de Jean Racine, Op. 11 (Paraphrase for Piano by Lucas Debargue)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990f99ce040361db6338d5cd7e6ad074ed5718ad4033608d31879e907a31eb3e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92403948 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03fa86d3fd03b01af685b0383bae1a50d0c08ab4e1d88eaa1fee9c4cc3e68e3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM15000362 — a six-check JSON result.
Sonata in D Minor, K. 32 (Arr. for Guitar by Michael Lewin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508b6624efb027766bb82e03be85db9cbf68d45e5df8ddd01ae29af4d51608ff. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12303911 — a six-check JSON result.
Images, Livre I L.110: Reflets dans l'eau
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bee4ff019d9b3ffb714766bb2d807d05a10204beb57e7c7dd16f185e048649. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ059803720 — a six-check JSON result.
Sinfonia for Strings and Basso Continuo in C Major (From "L'Olimpiade RV 725"): II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582b6c1da3c7f604102217368665efc9c76d060bd2eb82745a983ac89dba6888. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11906186 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f35ba8f97bd587eea682a0ac10572e046aeb8e11abefd736fdbcd09cbc82a9b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12409487 — a six-check JSON result.
Andante from the Sonata for Solo Violin, BWV 1003 (Transcribed by Alexander Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c61487d7fc770190e40b2d7d04974a7dbec0b2351f07c3518e5cf14a7e8781a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12306663 — a six-check JSON result.
Cello Concerto in E Minor, Op. 85: III. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f8e2aba7fb91909dfba55d287a66f60fbe24840d9d3cddb3bf41a6b43651c4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM17000198 — a six-check JSON result.
Sonata in A Major, K. 208, L. 238 - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd275631af03d5e0014089548c9da8a1fc2b3f3970e3f04b8087f9cb548b2666. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11600068 — a six-check JSON result.
Trio Sonata in C Major, RV 82: II. Larghetto (Arr. for Guitar by Michael Lewin & James Halliday )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbda44b892f1d3d01e2e4284d14e08e699df33ca302bd6e91e72e0e009a0470. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12303908 — a six-check JSON result.
Paraphrase on the Prelude in C-Sharp Major, BWV 872 (Transcribed by Alexander Siloti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f7ee85e9bbb81ba51d78e62f6e63e71181124c5b06edf14849fdf18609f6e9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12306664 — a six-check JSON result.
Suite Bergamasque, L. 75: III. Clair de lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd790ece2eb3f31f20177b8c513ec61d4d6f0683b6120d29831586de338b8a062. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11308074 — a six-check JSON result.
Polovetsian Dances from Prince Igor: Introduzione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03e777a871fe7c048271dbbf245b221de184644d9199f38fe5f1997d5aa8fb9c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10014577 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2355391fee88801302fc66be47ff0deb99ed315f73ecd7ff667dd135c29c0d48. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11410626 — a six-check JSON result.
Pictures at an Exhibition: II. Il vecchio castello
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0372ee649c8bf6d38f7c47b687ca8aaf47f609a4aefd0ec12a3618e59443c3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM11508458 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28606f00d954254986e508c8527dd4b52560e4baaa69c3b519abbb168891b04f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQX92403946 — a six-check JSON result.
O virga mediatrix (Arr. for Soprano, Pianos and Electronic by David Chalmin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4012d3266d15278910aa874a8221015e22f377bd84c6e9c2b5b3cd9fa6b54d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2398001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075307bc889b4ff654b7ffae98066b6edc15dec7dc83b1bc4e6e1cc9497afe59. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITP902400002 — a six-check JSON result.
Gershwin:An American in Paris/Fantasy on Porgy & Bess
Fauré: Dolly Suite; Nocturnes; Barcarolles; Impromptus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae649431889941e47bc178985ff810e6475ff44908983108b867fc1bf5c29b0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37437a82e9a67e63a93847f8a0421dbf8c1e784e95447002e317467b464c9545. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692114 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0563f754bb41f797db3a4f775b0e2ec840c551fbb98ff4815a2dfd294cf68356. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692115 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb72fb108fde61834c9e1e3de70167c870b2ec4eebaf43780c04d52670d02abfc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692116 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278fb415d4e5b94598a82ddea6b4e3a788d0bd4e45f920e0eeb05d37c6a1b754. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692117 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1c3adeafaa0e89af403219a6a704f2518db687bddd846f4fc0fceab8546d82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692118 — a six-check JSON result.
Nocturne No. 1 in E-Flat Minor, Op. 33 No. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd852f50fe08d6bff4b9214fceb5324b1ba28d4a73088bfa50d9eda20bd1ebc. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940203 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9278422c9ee5380f1ab8300ffb4a8265e561cf84b6f7332d4d803f7fe1e542e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940204 — a six-check JSON result.
Nocturne No. 3 in A-Flat Major, Op. 33 No. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ab70cea35cf31158bbdc90c7a289be3eb5f3ab557a3cce998fb8fa8570a4167. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940205 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dbf2266b6628465c17e58dd64a37ed6a4ca5775c154d8d63831b23411a5ff9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940206 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b9a512e5ac1f93b0fb0fdfdc1b25d600eb89e229c5139f970dda6786b63773. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940207 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae03d1eb17967499ae9708d7147dda4930331cef58c9f3d6cde60dc9275a4cef. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940211 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa21989b83ea9dc66e19db2ed863e6a4ee44896a96b59d3bf87f682df22db0f4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940212 — a six-check JSON result.
Barcarolle No. 4 in A Flat Major, Op. 44
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x251972af902ec67dc6b6d3178bec90dd3785232defd4132dfe6bf00b196cadae. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940213 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df0d5002c6a8baa159baedc6b87d6a0d7e7fa0c2862a351ed0e046a84c190dd. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940201 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29feddf0ae2ef584d195fbd4cdba4cf26c840d31d6cb04abe1eed4b20466bd47. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078940202 — a six-check JSON result.
Mozart: Complete Edition Box 4: The Piano Concertos
Piano Concerto No. 1 in F Major, K. Anh. A7 (K. 37): I. Allegro (After Raupach, Op. 1 No. 5) - Performed on Fortepiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3bb0e3360a0d4c856a5754ee9f35245433391b5e45b34ce79046ef4bee3a30. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300605 — a six-check JSON result.
Harpsichord Concerto in D, K.107 No. 1 after J.C. Bach's Sonata Op. 5 No. 2: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb72930f0f3cefada8aab95bde1fac23470f457b93fe21966369d6cd64fa357. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908101 — a six-check JSON result.
Piano Concerto No. 5 in D, K.175: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6e0edafd1d3ecd6993e739ea386db314c20e5a92962f2bbafd41c3330d2ee1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508319607 — a six-check JSON result.
Piano Concerto No. 13 in C, K.415: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c00ab6e6ed88ab59dc608a6e488524566478fb14a29271bad217de52379442. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507802301 — a six-check JSON result.
Piano Concerto No. 1 in F Major, K. Anh. A7 (K. 37): II. Andante (After Anon.) - Performed on Fortepiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2f1e1dec5b442545c660c6c9b7fc67daabe9af0f515900efdcbc186c42c59b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300606 — a six-check JSON result.
Concerto for 3 Pianos in F Major, K. 242 "Lodron" (2 Piano Version): II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b433238c3806bdc9fd5dbe7e0c43d0718ac4c327ac421e4dbf133ddf2487baf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508400602 — a six-check JSON result.
Piano Concerto No. 9 in E-Flat Major, K. 271: II. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdc818a88feed55ca8603cbc800357fab931f744d409bb9eecb7160541b01198. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507604002 — a six-check JSON result.
Piano Concerto No. 13 in C, K.415: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaaec05ff2c7c3400359f571511f80f98855e4e5a1ed15ff9c46a94c30a9b1e1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507802302 — a six-check JSON result.
Piano Concerto No. 9 in E-Flat Major, K. 271: III. Rondeau. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ac1edfb2410b2206d3f7f9f9fa007a2dbb30d596a9722c6999d259787641e7. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507604003 — a six-check JSON result.
Piano Concerto No. 6 in B flat, K.238: 1. Allegro aperto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323a76cac398133735c365c570585212a28f40e6556caf8652a03474af255fa1. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508319610 — a six-check JSON result.
Piano Concerto No. 8 in C Major, K. 246 "Lützow": I. Allegro aperto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a38416888fdecb91a65bd87bc8cf5801ffa99bfb86d6a15ab3cdc860e75b27. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508214404 — a six-check JSON result.
Piano Concerto No. 12 in A, K.414: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3267b648d1af623fab07fe88c1566dc57ce0aea76fb39f095e7d6f4256315d5f. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507000721 — a six-check JSON result.
Piano Concerto No. 12 in A, K.414: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e2617adb18455f2cb20dc31035865c1b0e147deaf83a48b72834419fc49f76. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507000722 — a six-check JSON result.
Harpsichord Concerto in E flat, K.107 No. 3 after J.C. Bach's Sonata Op. 5 No. 4: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e7631cfc50acf946e8a773d213712310261621415fc8818e767fd20ce46133. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508908106 — a six-check JSON result.
Piano Concerto No. 3 in D Major, K. Anh. A9 (K. 40): I. Allegro maestoso (After Honauer, Op. 2/1) - Performed on Fortepiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68f51bb7d22836ae1c5c1b19cb4cbce99744d64fbfe5c20baaed5269821f431. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300608 — a six-check JSON result.
Concerto for 2 Pianos in E-Flat Major, K. 365: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd929acd0f8655df12f3eca8875a2308f086735e3f2ac8b958beece35287ea4c5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507604004 — a six-check JSON result.
Rondo for Piano and Orchestra in A, K.386 - Completion: Erik Smith/Alfred Brendel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d56aa53240278c1075bbe9336ff91f3d3476b5ef90d42042e94a9da5de688c6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507500250 — a six-check JSON result.
Concerto for 2 Pianos in E-Flat Major, K. 365: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b2deb2e279ceccafc8b19bea1dc19248b1bd9231c8ce1a819c458ca5333f9f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507604005 — a six-check JSON result.
Piano Concerto No. 4 in G Major, K. Anh. A16 (K. 41): II. Andante (After Raupach, Op. 1/1) - Performed on Fortepiano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f81e66b7e2d6700efc9d9753b0eb98482ab19243d21292c5ec1e149fa2a5cd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300615 — a six-check JSON result.
Saint-Saëns: The Carnival of the Animals, R. 125: VII. Aquarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7137f2b73dcbdad2c27bcda1e39475abcee8e64df9fab01445567991523e4354. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2002604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118878d20f0c131fb1e605faad0cb8f839ec1a425df865a6ed25ecb7610285e3. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10406825 — a six-check JSON result.
Klassik 100 Meisterwerke: Klassik die man gehört haben muss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ba721b0f81a218ec0a25389f9a01d56b665b94b1dd0de259ec1eec8cfe27e4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8300569 — a six-check JSON result.
Klaviermusik 50 Meisterwerke – Klassik die man hören muss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62bad0cac765dd502c1c0f36492e93cc50ef446f0b5bdf5b32b1a9f8e66e7fc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8200842 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae649431889941e47bc178985ff810e6475ff44908983108b867fc1bf5c29b0. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508692113 — a six-check JSON result.