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 0x986531fc0431b6c39707088265518df27a351627326b83f371ae43cab0922e60. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f954e10f-e5d9-482a-91b4-6db81cd70b07.json and https://artists.proofprofile.net/proofs/artist/f954e10f-e5d9-482a-91b4-6db81cd70b07.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 0x477f082b71f5909784326bb3d418a275b18dd39651bc5c264a883e6bb4dd775d. 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/USSM19929975 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9080fc925803186329f5bc77cb66d32736db3a4f341845e26d35fbb64ee751. 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/ITP901300001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81246bfa4f6e5a7db78cab99afed7e5ee70f25a1fe341994720bf1e0c449832a. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/ITP901300021 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73e6f404ad4b143551c7ce58284486d41c20b740df40db5c34ae81f5b621305. 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/ITP901300002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f6906d8cc1da0324b9984b7d27ae1b5499bf7e9b9a9d0a1d220fdcecb3239c. 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/ITP901300010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50fb7739af35fb13ba8c174cbb69b5ead56eaa649e165f592211f5fc77fa2354. 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/ITP901300003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ab96513ab5bad6dff45e91c4f86a57101c59bb8dbec97f780c0df7614ad088. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/ITP901300012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3557b3b3bab3021c8d74cca03e72736de09c7e7b149a03b2e9b78313c2ab30. 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/ITP901300029 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76363c55a4a0ac84e6c1087c850b9fad9d5eea118692e4e78077158a28fe8896. 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/ITP901300004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2658250198678af328c3af094ac901cc4db94f1e08f23e9bc835ae976e7184. 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/ITP901300020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d8a979c1987f663110c5ada9234bdc3655d91a17f3787dfdc476fe185188e5. 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/ITP901300025 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b229d5a8d8ee56391a2a6694a99c9f79322fb2105bcf0f02cdd7ee5b717e83. 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/ITP901300024 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c51df748627b85c38213be42b33f23228a7ad6b3c2e966a7f26cf4611373f6d. 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/ITP901300027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96e965cc85ebf69cea8f26f6aadcf128f067c3c72701e78a2d0f2d145d935e6. 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/ITP901300026 — a six-check JSON result.
Water Dances, Arr. for two pianos: IV. Gliding
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5785dc07681fe6227c7f21b2d855d84772fe8ab024af1579ff957f0b0d46501f. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ITP901300036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b43f7b20405f1a1034098aca7303a5a8320d3656cf3e285f83c95683015472. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/ITP901300008 — a six-check JSON result.
Water Dances, Arr. for two pianos: V. Synchronising
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15417fde9c87b355edc1902a72cfc6bd425975496ab65249835e155a5cebfe15. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/ITP901300037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb19d96dae17e93b8cbf353f33e57f3d21d5b222f55b5ee0ef52e06d5193755e. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITP901300032 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193fee7d5cef3a0768fd563d913bc57d13114924c12b12b9f0591f0aa43cacc6. 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/ITP901300009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb7fc4a415cee595c30f2989e693f5f250e25c46fdb8df14be0833065057bf5. 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/ITP901300013 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7696ed33d5dec5f8f7209bf847b3166778b46387e175f5e78b3dd64e6e5702. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/ITP901300030 — a six-check JSON result.
Water Dances, Arr. for two pianos: I. Dipping
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfcea5a5edb4acdf7d1e09887fe702a52fe922bb5895b0c7a3aebaee9eb430c. 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/ITP901300033 — a six-check JSON result.
Water Dances, Arr. for two pianos: II. Stroking
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4504844ae80c806a93495c3623fbd5814ef4707e0951e24f916d2bf1af156f7b. 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/ITP901300034 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d5b4c90534465a8a534ecf743f5394227b3216066b5fad3ae8a29a41423b33. 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/ITP901300015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67b0c23e1d321a892840a2d2594652d82503da0d88603dac9d3a10bf1e7a68a. 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/ITP901300016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2567cb1435aa511454e8951be6745e270f5efa9c04ab48b6c21027b41f2c68ac. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/ITP901300017 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8831edce0323d3a6400f56ffcea16691a59f608290b7ccf042c90b53bb133e8. 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/ITP901300018 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x118b824eee47e8894f7a94ea8f315aa1f9d096ef7187740a86cd066de1febf4e. 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/ITP901300019 — a six-check JSON result.
Fantasy in F minor, D. 940 (Op.103) for piano duet: 1. Allegro molto moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8712c6ac9810362c6e445cd03272f8427ee2f219e705ee2619d4183da4f974ee. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBRPH0700025 — a six-check JSON result.
Rapsodie espagnole, M.54 - Arr. 2 Pianos by Ravel: 1. Prélude à la nuit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbd32ef00510e31225d710bd2cc3ae4c64b4393e8e58f9ac1d651e99cf5bfb5. 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/GBPFS0600001 — a six-check JSON result.
Fantasy in F minor, D. 940 (Op.103) for piano duet: 2. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93bdc35b4f4dfdb10f85754fc5661513eddd7b6acb1cb8ea9c20d4b6da9fd8d7. 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/GBRPH0700026 — a six-check JSON result.
Hungarian Dance No. 1 in G Minor, WoO 1 No. 1 - for piano duet: Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4258ff4b45f14dfb24b0f48856af6d1f6d52e6f88718152059fbe52b52cd51b. 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/ITP901400002 — a six-check JSON result.
Rapsodie espagnole, M.54 - Arr. 2 Pianos by Ravel: 2. Malagueña
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eab16db4afd5025c63e2845db90fd8bc816bc78c061f29092101dc31f79b60. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPFS0600002 — a six-check JSON result.
Fantasy in F minor, D. 940 (Op.103) for piano duet: 3. Allegro vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa813a8e517c3b68fcbbddabe858cca3246f0ed3055fbff8b0dade67ea746b843. 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/GBRPH0700027 — a six-check JSON result.
Rapsodie espagnole, M.54 - Arr. 2 Pianos by Ravel: 3. Habanera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11825ea6befd750dd6699a9e015c61fba6ea66a5c80458438446904432aa8e10. 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/GBPFS0600003 — a six-check JSON result.
Hungarian Dance No. 20 in E Minor, WoO 1, No. 20 - Arr. for piano duet: Poco allegretto - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21d60271b7ecbc236a097cf2f5325ef92c4160610cd479addd86a8ebf3f895b. 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/ITP901400003 — a six-check JSON result.
Hungarian Dance No. 5 in G Minor, WoO 1 No. 5 - for Piano Duet: Allegro - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd74b9d4d7aed001cb0b3a8e26101d33fe9aa99dbd53b9597a5132abe5de684. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/ITP901400004 — a six-check JSON result.
Trois morceaux en forme de poire: Manière de commencement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3982bab8b97d9e78226e1cb181c4748bdf4f9e9ba8dcf87f65e577d74f434f6a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ITP900900013 — a six-check JSON result.
Rapsodie espagnole, M.54 - Arr. 2 Pianos by Ravel: 4. Feria
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75ddb764505742384af933bce1104ddfe8a359b8598ca47be21df42c4ea2c7d. 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/GBPFS0600004 — a six-check JSON result.
Fantasy in F minor, D. 940 (Op.103) for piano duet: 4. Tempo I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0450c2968d16915d866bc69dfdbaaf8fd586a2819daa06948c59c35eccc96be. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBRPH0700028 — 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 0xd2024bcf6cf56cf6e90bf68612a3db605e496acf152048a83052b324cfe7f449. 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/ITP901400005 — a six-check JSON result.
Divertissement sur des motifs originaux français, in E minor, D.823: 2. Andantino varié
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85534c6e42067dec6ccb1d7e0b394eeea6af1018bd4a452220c8339c789a93d. 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/GBRPH0700029 — a six-check JSON result.
Ma mère l'oye, M.60 - For Piano Duet, M.60: 1. Pavane de la Belle au bois dormant
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8 Slavonic Dances, Op. 46, B.83 - For Piano Duet: No. 8 in G Minor (Presto)
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Sonata in D Major for 2 Pianos, K.448: 1. Allegro con spirito
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 2. Petit poucet
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Sonata in D Major for 2 Pianos, K.448: 2. Andante
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Jeux d'enfants, Op. 22 - 12 pieces for Piano duet: 11. Petit mari, petite femme
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 3. Laideronnette, Impératrice des Pagodes
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 4. Les entretiens de la Belle et de la Bête
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Pizzicato Polka - for Piano Duet: Pizzicato Polka
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Sonata in D Major for 2 Pianos, K.448: 3. Allegro molto
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Auf der Jagd, Op. 373 - for Piano Duet: Polka (Schnell)
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 5. Le jardin féerique
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Pavane pour une infante défunte, M.19 - Transcr. for Piano Four-Hands: Pavane pour une infante défunte, M.19
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Dolly Suite, Op. 56 - for piano duet: 1. Berceuse
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L'Embarquement pour Cythère, valse-musette pour deux pianos, FP 150
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Rhapsody in Blue - Arr. for 2 Pianos: Rhapsody in Blue
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Scaramouche - for 2 Pianos Op.165b: 3. Brazileira (Mouvement de samba)
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Country Gardens (Handkerchief Dance) - Arr. for Piano Duet: Country Gardens (Handkerchief Dance)
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Three Preludes for Piano (1926) - Arr. for Piano Duet: I. Allegro ben ritmato e deciso, in B-Flat Major
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Variations on a Theme of Paganini - Arr. for two pianos: Variations on a Theme of Paganini
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West Side Story - Arr. for two pianos and percussions by Irwin Kostal: Cha Cha
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Agota - Arr. for fortepianos by Francisco Ibáñez Irribarria
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Boléro, M.81 - Arr. for piano duet and percussions
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Prelude, Fugue and Riffs: III. Riffs for Everyone
NAZARENO! Bernstein, Stravinsky, Golijov
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Nazareno: I. Berimbau (Arr. Gonzalo Grau)
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Nazareno: II. Tambor en blanco y negro (Arr. Gonzalo Grau)
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Nazareno: III. Guaracha y Mambo (Arr. Gonzalo Grau)
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Nazareno: V. Tormenta y Quitiplá (Arr. Gonzalo Grau)
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Nazareno: VI. Procesión (Arr. Gonzalo Grau)
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Concerto for 2 Pianos and Orchestra in D Minor, FP 61: I. Allegro ma non troppo
Sommernachtskonzert 2016 / Summer Night Concert 2016
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Concerto for 2 Pianos and Orchestra in D Minor, FP 61: II. Larghetto
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