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 0x9f8b97b93c8ea0a1a3d8743897a7aaa947848cbf1bd1723f787d2a84266468dd. 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/50cc0a1e-dd2a-4f0a-8d13-577dddda3ce3.json and https://artists.proofprofile.net/proofs/artist/50cc0a1e-dd2a-4f0a-8d13-577dddda3ce3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Netherlands Radio Philharmonic Orchestra
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 0x8f3f29508d2f8e9919e805f81505b723fbee07477aed7c70cadb389cdb39626d. 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/NLK4J2200024 — a six-check JSON result.
Roukens: Concerto for Two Pianos and Orchestra "In Unison": Neon Toccata
Meditation: 111 Pieces of Classical Music to Ease Your Mind
Suite bergamasque, L.75: 3. Clair de lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98148a939bbbf380f08f77be8c9045907998e015b74bdc7a5012db3dc70eb0cf. 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/GBF077010720 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203b72781e9890cfb5456180de8971bfa8858e99fed143915bae51dcf075b681. 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/GBF078341401 — a six-check JSON result.
Christmas Mass "Puer Natus": Agnus Dei "Missa De Angelis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bba518e2fbc302bca48483e9f7bbd79710f1b11ea8314d00d039fce6935ab2. 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/GBUM70814659 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8130250727abcf1f6e1066beafa341f4759f3d8540ea28dab73380c756039dac. 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/GBBBA0942040 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6cfab14cd1ac8463de61ed1af8bc5089e9209a635d732fe5dd8e2364bfc30. 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/GBF077210002 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d88fb981f8795e00dffbf04f52504e5e4f54223ac4f87a14455e82f9424b372. 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/DEF058902410 — a six-check JSON result.
Nocturne No. 8 in D-Flat Major, Op. 27 No. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838388f5697ea4b9fb092327c60c546779a8e94cd2316fdfae0c8f10f44cbac5. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/GBF078340408 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd463eed35a23a2565112e02572ce12931bacd1b49d613d12474a02f79e61ed68. 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/GBUM71026527 — a six-check JSON result.
Piano Concerto No. 21 in C Major, K. 467: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6be32898df5f9095bc87ffc175db21497f34eb943e76fdbfd158c154830b4a. 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/GBF077410322 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b57c12e920d0326001efdc1f73585f1e626ed8f0bfef31557a4ef12afab00a. 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/GBBBA0500410 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d735f2a897abc127007448448743db59f89aa9302e5548d75b3d598da31e44. 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/NLA508542810 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c49cfc5c4c7d441b9332f248105836c8fbc4d02eaf7f4466c2c495e43ab866. 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/DEF058902740 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f239e8790c823c98205ab83e59ce12e202a01998f65fd71461dd7e818d654e4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM70600256 — a six-check JSON result.
Sonata for Keyboard and Violin in F Major, K. 30: I. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5e428400f7a035cb495b847b7e7f75ebc8fc147d226365135e21c8186eb51f. 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/NLA507400153 — a six-check JSON result.
Fokus: 111 Klassische Werke Zum Lernen & Arbeiten (German)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5325fd248286a92983ede353822f05e44e1ad6c79c8b9709f104980c1529e3a. 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/DEF056120330 — a six-check JSON result.
Piano Sonata No. 11 In A, K.331 "Alla Turca": Rondo alla turca (for Cello and Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f72701288d5d3f8e4e76ec99a4a9a5f1092c8a04b6269acc70427d5c69bb9. 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/NLA508534503 — a six-check JSON result.
Brandenburg Concerto No. 3 in G Major, BWV 1048: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fbb25cbe4f52b225911704564fef8a5dc2c1d6dfd6339933ca30b1112e292d0. 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/DEF058200413 — a six-check JSON result.
Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b662c053e58d348df192e61abfe127f284b1ccfea8c930be6efce41f3e5b68f. 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/DEF056002672 — a six-check JSON result.
Matthäus-Passion, BWV 244, Pt. 2: No. 39, Erbarme dich (Arr. for Oboe d'amore, Violin & Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790fe650d9dd5f579d3a4a6f4fd52eae95103578f4f18dd65b1a7b001ba187aa. 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/DEN120301617 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67a4e700665c7792fd14883a4b46cf2c7c15938c375a644ef42d3ab99e7e954. 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/GBF071900150 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bcff004c8f6a6fcc72200e2487edc19aa456b7972add7182f440edb1cfee4b. 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/AUUM72100007 — a six-check JSON result.
Something Good - From "The Sound Of Music"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bd65c81eeba30b78a6b79c2a717a18d784c308bd7b0488014e6251df11b676. 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/AUUM72100008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974a63af302554bf43ba720b0da2e6d0020685376f768bd8967ec413895b05d3. 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/GBF071401980 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2534e1c4dee3c21d5a58342d96f4d13d4a4902b4c6612a1a3b43ecab8e1858f4. 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/DEF058330101 — a six-check JSON result.
Consolations, S. 172: No. 3 Lento, placido
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68914b61af9028d4a5b1fca0c39d6225b1e789e4daa2e4910dd218b3d10154e2. 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/DEF057900552 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f284d803ff7a2a1946e11bca340eabadeae80322e0d18d20ce39652fe2add0. 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/DEN961903320 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa91a18b42c9fae79bbc263abe6c4517bdab18cad02d58afca4c5b24a9973e37. 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/GBUM72100437 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202f9679c0e2c8c54d7fd15891662eca727c6fe829652a80be58a9d62a704163. 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/NLF7S1400007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68deb429fda4290e98e85d30b781ded9325006da88cbc6d42294ebaca085bcb4. 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/GBUM71406943 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ede1ff9bbaa06bbcefbc8934ff44c388282c56c2a9a0e9cb19142a57cfee6f9. 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/DEN961800450 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62ef76d100803139cd488d844c9b222ff6edb0203de0a258d4e66e9c41f21df. 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/DEN961800500 — a six-check JSON result.
Main Title Theme - From "The English Patient"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6922b285617d5da99174327476c73634d137db2b75f5aa02604aa093acb8916e. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/AUUM72100009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x143592970e276a328f93159e09b6e8806274e59e02bfb83ce4a36e27ed6e58e6. 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/FRZ038401150 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae649431889941e47bc178985ff810e6475ff44908983108b867fc1bf5c29b0. 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/NLA508692113 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a88bd5577ac4c0965e4f09bbc6d206509fbfdbb26dfb3fbbb304af6ca151ea2. 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/USUG12000362 — a six-check JSON result.
Piano Sonata No. 14 in C Minor, K. 457: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280f46fc3de09069de4a09c1ecc347b25ae5ac28e042bd3ccc50bcb03f5a722e. 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/DEF059002022 — a six-check JSON result.
Lieder ohne Worte, Op. 38: No. 6 Andante con moto in A flat "Duetto"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e54e0b1c08d8c6aea0bcb227901868ed1e717f2f59890c61e1b9f25b282af0b. 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/NLUM71300171 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca4549f682918b76a773ecb6e8c312a58b3100017a0c3b7480192b679b8f6b7. 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/ITB280400098 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63905f6702aef394a05d343763a84e4a9c73013b9d12774ee60f36b175e4683f. 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/DEN961800280 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c064912c6dace18d01eae0a1491e8eff83f35392c8c903a9f5cc0518e683cb1. 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/GBUM72001266 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c5236d7d02191cbca1075d469745c8387d6675339582a237774b8dc07b9ef2. 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/DEN961800270 — a six-check JSON result.
My Father's Favourite - From "Sense & Sensibility"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff16addc1cbacf4b15e9b12c0846914c9a04c0c0261ff4620f4ca9d73fbce3e. 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/AUUM72100004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815b0ecd68547583f94a5ecaf8c62da0bf23bfe31d3eafb3c721f9b025ec29c6. 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/DEN962200010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ba6473047ac397ceee9e6bf535cd4cffce7028abcd361c9dc68e12f058ee9d. 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/GBF071504650 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb87982549996cd8050bc3ec3d31555d1d3be69eb013f2b17eb52ebfd1f5e90. 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/GX6X42200001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e02c88c5900e7779b42ef80ef4b12612b141f879ac288b1d85c19eea51d6d1. 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/GBF079110776 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78ac083967c8566d669f10c818815ffa176a07d316171f963df90c13cc018b. 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/FRUM71901158 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ff7cf2d67cd881ae87d066a5c031765289e3f066a227765d486d95ce66da35. 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/DEN960631519 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cfb890cbcf70550fd4994433b3459535abf517b61cfc302436920259714502. 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/QZ8BZ2200528 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0092e559c22ca4210df728862d6a712100aac04e3ec0177b6c52548518e11b. 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/ITZ041800028 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b9dd35d75d3d12dc491a8275a1352d94ae96594312b800fc07262e0d78a537. 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/NLB780280060 — a six-check JSON result.
Sonata for Two Pianos: I. Allegro aperto, ma pesante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e14737bbd72524bb22ea85f370f7cf8be639b9bb1efa6dcaaa7f10732d28e53. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/NLK4J2200001 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58790b5fafe06a100ad89062f0655ab632c6cab6bb667bde458764417a4cec6. 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/NLK4J2200002 — a six-check JSON result.
Sonata for Two Pianos: III. Moderato assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39d4ec663c3c22fa03ed42ec35b92623d002c36775dd0c7aa5cc34f2bd8b7ee. 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/NLK4J2200003 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e6e766813f416bd7826035529ed3c1a2082a6a80754c487f7edbb7e8af3802. 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/NLK4J2200004 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4ef5b307b34a72b5ffae2d10ba80c033bc80ee29d2904f8130413f86a4d165. 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/NLK4J2200005 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc325e702d1f8af5477c3784ea41a87423e55a2ca4bb725b3171f61e4fe26e22a. 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/NLK4J2200006 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e66462bc96c6535b208223f496578149c1f13da1e77ab9c331191ee3eb2b5f8. 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/NLK4J2200007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2f92f4dcd04b8653c0f98b0902d643fef248853fefde485990429743822e75. 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/NLK4J2200008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caf14fd23234f8abfb5780ab16bbbd0b607aca25cc08609202922e5cd297d52. 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/NLK4J2200009 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b07129ec37c8fb2c427e45d8137b4dd00a84f3ee1933691cb4f6273cdffa82. 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/NLK4J2200010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f0e4144902ccc90f960c323fa07eb186c6014d08df8c263af68c2baa0f2136. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/NLK4J2200011 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5622753b305eb1b4152a1e49d85384c99396f11bb62d680805e21366e8d1d69. 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/NLK4J2200012 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a39e8d789bb1967fe745247825d8512fa300cd3ebd2654c4fa4af308645532. 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/NLK4J2200013 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b336990cc8e5665b898637f41cd8bceb5f922446be8286631b988ac08c28fdb. 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/NLK4J2200014 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f91997e1270f5cc0d03e380e2ef4bc7bf9ffe01bc31c6847d9084d7a9497c32. 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/NLK4J2200015 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494d3c4969fe21bc8d874e23d241a116d336a58dc2bb4d02a7bb6d1cbf62cd26. 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/NLK4J2200016 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8147b7fa6084fd4530d56d96a6287002d4d9c29ce805f0de3d1b4c74c491a433. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NLK4J2200017 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8f8e8e247709bb4a1409d11c230ede1b5b4876d60382fd7b33916a3270deb1. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/NLK4J2200018 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e13a8353a5684783922eba441f106ba3e310662853e3567714df62e3f2f03ff. 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/NLK4J2200019 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac483f69e243fbb173d5187a660be3162b41c42d7bad449a268384efb1e7c52e. 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/NLK4J2200020 — a six-check JSON result.
Concerto for Two Pianos and Orchestra "In Unison": Neon Toccata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8062e8a6b1c7553ff457fdf32f8c46640b586d47f9e8fe1b06afe83d8bb42c2. 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/NLK4J2200021 — a six-check JSON result.
Concerto for Two Pianos and Orchestra "In Unison": What If
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ed62966a55db0fd2a694c165d774f5acfff35fe495975fa24974bd808234be. 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/NLK4J2200022 — a six-check JSON result.
Concerto for Two Pianos and Orchestra "In Unison": Dark Ride
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dab46972ce372652966923ee2459c2f5d2b884e3af6d5dd8bd22b4633b40af1. 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/NLK4J2200023 — a six-check JSON result.
Concertino in A Minor for 2 Pianos, Op. 94
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092476875618143f4611facf49df9f01995c47e870515e625abfc32b799efed3. 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/NLK4J2000015 — a six-check JSON result.
Suite No. 2 for 2 Pianos, Op. 17: I. Introduction. Alla marcia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71555b64f9128103d721d14abba5b0ea80cb650e3915fdef184c8f197f417eaf. 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/NLK4J2000004 — a six-check JSON result.
Suite No. 2 for 2 Pianos, Op. 17: II. Waltz. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcb21613548b81a19b6a9a88c8eff98702fd78402b07a11da901e31eaa7d9c2. 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/NLK4J2000005 — a six-check JSON result.
Suite No. 2 for 2 Pianos, Op. 17: III. Romance. Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ae4590886e615c76c2f34bd0f2663e7ea6c55af3b136fa4c77a57166e1fafd. 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/NLK4J2000006 — a six-check JSON result.
Suite No. 2 for 2 Pianos, Op. 17: IV. Tarantella. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ff25d2480e05c5817c4a34509f84d87949a4d576ddcd0db7420d91e60f264. 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/NLK4J2000007 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc917e874122776617566f7ac8966ee6fe444b89f353bf865ca77542dcf9670b0. 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/NLK4J2000008 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833dd518318de80eed836d48427301706c31ccf6faafbe273a8618bf1865a478. 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/NLK4J2000009 — a six-check JSON result.
Concerto for 2 Pianos / III. Quattro variazioni: Var. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2651f21eb21def84131d4bd745ea83df42d47f17e2deb3bd2a641ca4cd8076. 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/NLK4J2000010 — a six-check JSON result.
Concerto for 2 Pianos / III. Quattro variazioni: Var. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00c055a620874b7aff2f2bee748b015823e12f6dc1b32cebbdd1cf26da9ccfa3. 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/NLK4J2000011 — a six-check JSON result.
Concerto for 2 Pianos / III. Quattro variazioni: Var. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf720939a83be53672b90769ded2498564005b6b284e95823102dd76db65f1cd8. 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/NLK4J2000012 — a six-check JSON result.
Concerto for 2 Pianos / III. Quattro variazioni: Var. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0165707fd1e05790d3da11f715c1a9f2a8703459941f503ab60732a215a271. 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/NLK4J2000013 — a six-check JSON result.
Concerto for 2 Pianos: IV. Preludio e Fuga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68dea695f805814fc61a0b2a69c7c5b2e97bd59cb2c258961d5d798f959b02a9. 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/NLK4J2000014 — a six-check JSON result.
Suite No. 2, Op. 23 "Silhouettes": II. The coquette
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5330d3fb6804d3bd5b2061806ae7218425302d13d8f386d3e64222f4e86aa056. 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/NLK4J2000017 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2cd5b08d68e0510e26b98875223b0e757fcbb30f1bdbe7b2ac0688f8745aea. 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/NLK4J2000016 — a six-check JSON result.
Concerto for 2 Harpsichords, Strings & Continuo in C Major, BWV 1061: 1. [No Tempo Indication] (performed on two pianos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6935f39548d85aac1119adffa176874a1ad48b29d542e349281fbd6dfa9129a4. 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/NLK4J1900004 — a six-check JSON result.
Concerto for 2 Harpsichords, Strings & Continuo in C Major, BWV 1061: 2. Adagio ovvero Largo (performed on two pianos)
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Concerto for 2 Harpsichords, Strings & Continuo in C Major, BWV 1061: 3. Fuga (performed on two pianos)
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Concerto for 2 Harpsichords, Strings & Continuo in C Minor, BWV 1060: 1. Allegro (performed on two pianos)
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Concerto for 2 Harpsichords, Strings & Continuo in C Minor, BWV 1060: 2. Adagio (performed on two pianos)
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Concerto for 2 Harpsichords, Strings & Continuo in C Minor, BWV 1060: 3. Allegro (performed on two pianos)
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Aus tiefer Not schrei ich zu dir, BWV 687 (Arr. For Piano Four Hands by György Kurtág)
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Orgelbüchlein: Nun komm’ der Heiden Heiland, BWV 599 (Arr. For Piano Four Hands by György Kurtág)
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O Lamm Gottes unschuldig, BWV Deest (Arr. For Piano Four Hands by György Kurtág)
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Gottes Zeit ist die allerbeste Zeit, BWV 106: 2a. Gottes Zeit, ist die allerbeste Zeit (Arr. For Piano Four Hands by György Kurtág)
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"Was mir behagt, ist nur die muntre Jagd" Cantata, BWV 208: 9. Schafe können sicher weiden (Arr. For Piano Four Hands by Mary Howe)
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Herz und Mund und Tat und Leben, Cantata BWV 147: 10. Jesus bleibet meine Freude (Arr. For Two Pianos by Myra Hess) - Live
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Der Karneval der Tiere, R. 125: I. Intro. Der Löwe
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Der Karneval der Tiere, R. 125: II. Hühner und Hähne - III. Wilde Esel
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Der Karneval der Tiere, R. 125: IV. Die Schildkröte
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Der Karneval der Tiere, R. 125: V. Der Elefant
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Der Karneval der Tiere, R. 125: VII. Die Fische
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Der Karneval der Tiere, R. 125: XIII. Der Schwan
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Le Carnaval des Animaux, R. 125: I. Introduction et Marche royale du Lion
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Le Carnaval des Animaux, R. 125: II. Poules et Coqs
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Le Carnaval des Animaux, R. 125: III. Hémiones (Animaux véloces)
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Le Carnaval des Animaux, R. 125: IV. Tortues
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Le Carnaval des Animaux, R. 125: V. L'Eléphant
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Le Carnaval des Animaux, R. 125: VI. Kangourous
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Le Carnaval des Animaux, R. 125: VII. Aquarium
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Le Carnaval des Animaux, R. 125: VIII. Personnages à longues oreilles
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Le Carnaval des Animaux, R. 125: IX. Le Coucou Au Fond Des Bois
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Le Carnaval des Animaux, R. 125: X. Volières
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Le Carnaval des Animaux, R. 125: XI. Pianistes
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Le Carnaval des Animaux, R. 125: XII. Fossiles
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Le Carnaval des Animaux, R. 125: XIII. Le Cygne
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Le Carnaval des Animaux, R. 125: XIV. Finale
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Concerto for 2 Pianos and Orchestra in D minor, FP 61: 1. Allegro ma non troppo
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Concerto for 2 Pianos and Orchestra in D minor, FP 61: 2. Larghetto
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Concerto for 2 Pianos and Orchestra in D minor, FP 61: 3. Finale (Allegro molto)
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Concerto For 3 Pianos And Orchestra (No. 7) In F, K.242 "Lodron" - Mozart's version for 2 pianos: 1. Allegro
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Concerto For 3 Pianos And Orchestra (No. 7) In F, K.242 "Lodron" - Mozart's version for 2 pianos: 2. Adagio
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Concerto For 3 Pianos And Orchestra (No. 7) In F, K.242 "Lodron" - Mozart's version for 2 pianos: 3. Rondeau (Tempo di menuetto)
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Concerto For 2 Pianos And Orchestra (No. 10) In E Flat, K.365: 1. Allegro
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Concerto For 2 Pianos And Orchestra (No. 10) In E Flat, K.365: 2. Andante
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Concerto For 2 Pianos And Orchestra (No. 10) In E Flat, K.365: 3. Rondeau (Allegro)
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Sonata for Piano duet in D, K.381: 1. Allegro
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Sonata for Piano duet in D, K.381: 2. Andante
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Sonata for Piano duet in D, K.381: 3. Allegro molto
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Trois mouvements perpétuels: 1. Assez modéré
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Trois mouvements perpétuels: 2. Très modéré
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Sonata for Piano 4 Hands: 1. Prélude (Modéré)
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Sonata for Piano 4 Hands: 2. Rustique (Naïf et lent)
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Sonata for Piano 4 Hands: 3. Final (Très vite)
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Sonatine, M.40 - for Piano: 2. Mouvement de menuet
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 1. Pavane de la Belle au bois dormant
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Ma mère l'oye, M.60 - For Piano Duet, M.60: 2. Petit Poucet
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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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Ma mère l'oye, M.60 - For Piano Duet, M.60: 5. Le jardin féerique
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Fantasy in F minor, D. 940 (Op.103) for piano duet: Allegro molto moderato - Largo - Allegro vivace - Tempo I
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4 Impromptus, Op. 90, D.899: No. 1 in C minor: Allegro molto moderato
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No. 1 in D Minor (4 Polonaises, Op. 75, D.599)
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4 Impromptus, Op. 90, D.899: No. 2 in E flat: Allegro
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No. 2 in B-Flat Major (4 Polonaises, Op. 75, D.599)
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4 Impromptus, Op. 90, D.899: No. 3 in G flat: Andante
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No. 3 in E Major (4 Polonaises, Op. 75, D.599)
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4 Impromptus, Op. 90, D.899: No. 4 in A flat: Allegretto
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No. 4 in F Major (4 Polonaises, Op. 75, D.599)
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4 Impromptus Op. 142, D.935: No. 1 in F minor: Allegro moderato
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4 Impromptus Op. 142, D.935: No. 2 in A flat: Allegretto
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4 Impromptus Op. 142, D.935: No. 3 in B flat: Theme (Andante) with Variations
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4 Impromptus Op. 142, D.935: No. 4 in F minor: Allegro scherzando
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Piano Sonata No. 5 In C Minor Opus 10 No. 1: 1. Allegro Molto E Con Brio
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Piano Sonata No. 5 In C Minor Opus 10 No. 1: 2. Adagio Molto
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Piano Sonata No. 5 In C Minor Opus 10 No. 1: 3. Finale (Prestissimo)
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Piano Sonata No. 8 In C Minor Opus 13 "Pathetique": 1. Grave - Allegro Di Molto E Con Brio
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Piano Sonata No. 8 In C Minor Opus 13 "Pathetique": 2. Adagio Cantabile
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Piano Sonata No. 8 In C Minor Opus 13 "Pathetique": 3. Rondo (Allegro)
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Piano Sonata No. 13 In E Flat Opus 27 No. 1: 1. Andante - Allegro
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Piano Sonata No. 13 In E Flat Opus 27 No. 1: 2. Allegro Molto e Vivace
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Piano Sonata No. 13 In E Flat Opus 27 No. 1: 3. Adagio Con Espressione
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Piano Sonata No. 13 In E Flat Opus 27 No. 1: 4. Allegro Vivace
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Piano Sonata No. 14 In C Sharp Minor, Op. 27-2 1st Mvt: Adagio Sostenuto
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Piano Sonata No. 14 In C Sharp Minor, Op. 27-2 2nd Mvt: Allegretto - Trio
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Piano Sonata No. 14 In C Sharp Minor, Op. 27-2 3rd Mvt: Presto Agitato
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8 Variations for Piano 4 Hands on a Theme by Count Waldstein, WoO 67
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Sonata in D major op.6 for piano four hands: 2. Rondo. Moderato
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Hahn: Le ruban dénoué: No. 1, Décrets indolents du hasard
Stravinsky: Concerto for 2 Pianos / III. Quattro variazioni: Var. 1
Rachmaninov: Suite No. 2 for 2 Pianos, Op. 17: III. Romance. Andantino
J.S. Bach: Concerto for 2 Harpsichords, Strings & Continuo in C Minor, BWV 1060: 2. Adagio (performed on two pianos)
J.S. Bach: Gottes Zeit ist die allerbeste Zeit, BWV 106: 2a. Gottes Zeit, ist die allerbeste Zeit (Arr. For Piano Four Hands by György Kurtág)
Jeux d'enfants, Op. 22 WD 56: 2. La toupie
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Jeux d'enfants, Op. 22 WD 56: 3. La poupée
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Jeux d'enfants, Op. 22 WD 56: 12. Le bal
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Lieder ohne Worte, Op. 38: No. 6, Andante con moto "Duetto"
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Carmen Suite No. 1: V. Les dragons d'Alcala (Entracte After Act I)
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Carmen Suite No. 1: III. Intermezzo (Entracte After Act II)
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L'Arlésienne Suite No. 1, WD 40: III. Adagietto
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Jeux d'enfants, Op. 22 - 12 pieces for Piano duet: 11. Petit mari, petite femme
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Les pêcheurs de perles, WD 13 / Act I: "C'était le soir" ... "Au fond du temple saint"
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Peaceful Piano Moods "Afternoon" (Peaceful Piano Moods, Volume 2)
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Waldszenen, Op. 82: No. 3 Einsame Blumen
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Peaceful Piano Moods "Morning" (Peaceful Piano Moods, Volume 1)
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The Nutcracker, Op. 71, TH.14 / Act 2: Donderslag!
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Suite No. 3 in D, BWV 1068: Kindje In De Kribbe
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Blake: Music Box Theme (from "The Changeling"), Op. 274
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Sleep: 111 Klassische Werke Zum Einschlafen
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Le Carnaval des Animaux, R. 125: 2. Aquarium
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Arioso (Adagio in G) from Cantata BWV 156 (Arr. by Lloyd Webber)
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Nocturne No. 2 in E-Flat Major, Op. 9 No. 2
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