Menahem Pressler (; 16 December 1923 – 6 May 2023) was a German-born Israeli-American pianist and university instructor. He co-founded the Beaux Arts Trio in 1955 and performed with the group until it
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1044dcebf358f56c17a59c2a67911d4eb3ca0d2011025fc3ce871eb04e930ada. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99df946d-728a-4aea-903e-74d9d2ee4b6e.json and https://artists.proofprofile.net/proofs/artist/99df946d-728a-4aea-903e-74d9d2ee4b6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schumann: Piano Quintet, Op.22; Piano Quartet, Op. 47
Piano Quintet in E flat, Op. 44: 1. Allegro brillante
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6689ce8ee01b3c00f90fc98abf3e06bd9461749914147c3d1fa5a43b669aadc4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304891.
Piano Quintet in E flat, Op. 44: 2. In modo d'una marcia (Un poco largamente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86e457e7125c512f70ac62a431a548f7c37ed17f45d2532f55d1e4c6d7ac7d9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304892.
Piano Quintet in E flat, Op. 44: 3. Scherzo (Molto vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c41ef60fb550a30c3b1111fdbd23bf842c29cbc70648953443606dfa1910fc7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304893.
Piano Quintet in E flat, Op. 44: 4. Allegro, ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6818dabd4cae045aacecb4be3e0cdfd8e7a70389609dc460e4e7ad17f2d3e1a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304894.
Piano Quartet in E flat, Op. 47: 1. Sostenuto assai - Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5161c52d511e7f0499118b6a8b58fb38731b6887946e399294c6c62af5d786. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304901.
Piano Quartet in E flat, Op. 47: 2. Scherzo (Molto vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de4ceaa7a8788a07446c89a7a7ff622247a1c19ceaed650e376be3522494908. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304902.
Piano Quartet in E flat, Op. 47: 3. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e528280f4ab8ec5788b14ae8a58e778724568d7ab0165a94b3434294e6faaf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304903.
Piano Quartet in E flat, Op. 47: 4. Finale (Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ae3c77d0f8f544f25ff4ebd420d1cd190928b1509ec69d741686fb0a07dd799. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059304904.
Dvorák: Piano Quintet, Op. 81 / Piano Quartet, Op. 87
Piano Quintet In A, Op. 81, B. 155: 1. Allegro, ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1dbe5917b68b596ebda3593d047559ef11362a815ab927ddee29cc328a950c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302641.
Piano Quintet In A, Op. 81, B. 155: 2. Dumka (Andante con moto)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc59a8e87a9ba5977761279fab435520dcb913f128c46716d9c6bca7a19b59918. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302642.
Piano Quintet In A, Op. 81, B. 155: 3. Scherzo (Furiant) (Molto vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3b028546a4f1d71bcaf8f8330ad1e43c01c09103cf799e7f2abc8fa318127d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302643.
Piano Quintet In A, Op. 81, B. 155: 4. Finale (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5151add851c9d64347a78b40707a32603f4a300cafdc3b698d540853b4c42660. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302644.
Piano Quartet In E Flat, Op. 87, B. 162: 1. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823bd9b0616ff8dd0cc57f40ebf5c183f6d24001403524084af0a9826c8a05a1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302651.
Piano Quartet In E Flat, Op. 87, B. 162: 2. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4b134288e2bb9973b7a542a469d0317e2907f96d095084dd5c05b12b9d5f3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302652.
Piano Quartet In E Flat, Op. 87, B. 162: 3. Allegro moderato,grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x972714dbfc3e68ebddf72d6e3e3297b6e368ac28c4baf1afc7fa3b54b5a22515. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302653.
Piano Quartet In E Flat, Op. 87, B. 162: 4. Finale: Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b13f6fcfbaa20dfa0520caea23f4508d42c444a5e9071c135b5cd3c61fe364d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302654.
Manahem Pressler, Vol. 3: Mozart, Beethoven
Deux arabesques, L. 66: No. 1 Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb059f6ae18cc74cdd166d076e15b7dbe24c031aa0f4acec744f064babe3716. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf034ff657ef2c254c7f4c5c9839a2f271b410d15f80580bf13095c8d149ab86a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730902.
Suite bergamasque, L. 75: III. Clair de lune
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c3b52cb7fb0bbea68522e388a2d7e4c436029a0ebded154a5ce0847801f767. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730903.
Children's Corner, L. 113: V. The Little Shepherd
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e5689b95ac2e9271a51f59dd29f22314f63690043aceb41aa95cab74b63be0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73838b713fe4267381a817dddd00b51049c6857f4f66b5c21a9f3c352c66bf11. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730905.
Préludes / Book 1, L. 117: I. Danseuses de Delphes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4134c4de85b7af48c8ce2de26d912ec0167355915fa95daec70cb596adc7835. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8e374073d21a77ac2f41fbbc8089d4bb89af8d35a6e79abd23b707af3f6d98. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730907.
Préludes / Book 1, L. 117: VIII. La fille aux cheveux de lin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645866543e5f8ceeb16a54cfa80e01dde9aec20b84acd6e07d2160b2192e65cb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730908.
Préludes / Book 1, L. 117: X. La cathédrale engloutie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130c24287fab8adf93b0308987bb14ce48e6b7701e8789b46f5b5a93097d1912. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730909.
Préludes / Book 1, L. 117: XII. Minstrels
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679b28210e0f49829ee96e6b13045198651deb1f621093ee0bcc6a12ecd16905. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730910.
Barcarolle No. 6 in E-Flat Major, Op. 70
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9dbed33d16caf1b234192e011d8507c689bac3832af68e23414b9204ab5fcd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e2d23fc05a34875b2a9eac84f6de911f087e701d7c671f9bff56f4befcc790. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8b4ebf65227c59b297a2bb8f7500e43e6d7984d0485a8970f1055c563b1a36. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961730913.
Mozart: Piano Concertos Nos. 23 & 27 (Live)
Piano Concerto No. 23 in A Major, K. 488: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940a05d9e2b0dd8da83aa8e57defe7360158e7c076c51b1cd087fbbf9fad0e42. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ71738702.
Préludes / Book 1,CD 125: No. 10, La cathédrale engloutie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10156d7ad4511b6b5b59a8608346e21860ce00f3c7ce91c967640eba9acd670d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ71738704.
Nocturne No. 20 in C Sharp Minor, Op. Posth.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f15752be88e0fc872e1a4ff7c36d5ce76680935e9d35f6bc48865f7e9b7f74d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ71738705.
Piano Concerto No. 27 in B-Flat Major, K. 595: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c52962bb8b52330797155670dba311617bae87c6938d94af46c7083bd8cd902. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ71738707.
4 Mazurkas, Op. 17: No. 4, Lento ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce686cf0e3b8f583d30f61a5c66cc8ee4ba99aeff17faab1f3c3b007725c8a3e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEAQ71738709.
Brahms: Piano Quintet, Op. 34 - R. Schumann: String Quartet, Op. 41 No. 1
Piano Sonata No. 11 in A Major, K. 331: Piano Sonata No. 11 in A Major, K. 331: I. Theme and Variations - Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda96883fcc72f463c49d3362c10dd6e6c82c29a72a20400b2aaaeabae253aeda. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR3Z51400373.
Piano Sonata No. 17 in B-Flat Major K. 570: Piano Sonata No. 17 in B-Flat Major K. 570: III. Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4357fbc39f4877c2d14dbd0738b36707af7f8d9bb4799a0439472ff94229b8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR3Z51400378.
Piano Sonata No. 18 in D Major, K. 576: Piano Sonata No. 18 in D Major, K. 576: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6b614a45152970455c66ab6fa8a887670f5ca5bc72bfa69ec864cf753d44f3. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR3Z51400380.
Beethoven, Schubert & Chopin: Piano Works
Piano Sonata No. 21 in B-Flat Major, D. 960: III. Scherzo. Allegro vivace con delicatezza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f824f37a06b841e8a9a196ced96c9360ef11cfeff7de2a3f4a8470b058ed5de. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAET1399060.
Nocturne No. 20 in C-Sharp Minor, Op. posth.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a2a1d950328856635f5bfabeb916bb3f463c6f459f70628edcd2824705f19b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAET1399080.
Schubert, Mozart & Beethoven: Vienna Tales
Piano Concerto No. 1 in E Minor, Op. 11: II. Romanza. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0a56a927638785320c4d590acbf33ce0fa6b552f44131880b70e6aa4877444. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1698902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e6c24b3c8f4afb40dcc00c06ed75802750d98223306793bc84b6edd93ee42a. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1699007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17dfb4dbf5a6d7f39bb4ca7c31945ad0f80e21762ada63ce2d2fcda43b5b3d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAAGN1699008.
Beethoven: Complete Works for Piano and Cello
Prokofiev: Piano Sonata No. 9, Op. 103 & 10 Pieces from Cinderella, Op. 97 (Mono Version)
Shostakovich: Concerto No. 1 pour piano, trompette et orchestre à cordes & Sonate pour piano No. 2 (Mono Version)
4 Romantic Pieces, Op. 75, B. 150: I. Allegro moderato (Arr. Soltani For Solo Cello and Cello Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9de28ca9460e197fa9cbc45bb1179e60d0e0899d8006502f48d9e4d91fdd795. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962000180.
String Quartet No. 12 In F Major, Op. 96 - "American" B.179: 3. Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0288786ddcc76485df745a45814b4ded4f9b3b6f6fdfff71f8ec8ebe8269a9a0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055003063.
8 Humoresques, Op. 101, B.187 - (Arr. for Violin and Orchestra by Franz Waxman): VII. Poco Lento e grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7471537936de13d9ee393797d1e27fc4086a7d7488e650cf90ca1202425064d5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961001990.
From the Bohemian Forest, Op. 68, B. 133: V. Silent Woods (Arr. Niefind & Ribke For Solo Cello and Cello Ensemble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006d9bc8725297d5c3f27fde421d20413f81da384720dd0e74b9a4047d2b5622. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN962000190.
Symphony No. 9 in E Minor, Op. 95, B. 178 "From the New World": III. Scherzo. Molto vivace - Live at Philharmonie, Berlin, 1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf4ed54b3af4c4448f3d12adb322820c480ea83f9f5ceb34fc35aaf4b6abbc8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703803.
Symphony No. 8 in G Major, Op. 88, B. 163: III. Allegretto grazioso - Molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa462a34b90a9780897b7d25df33658814bc160ac6997cdeac29a91185b268cb4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056601313.
String Quartet No. 12 In F Major, Op. 96 - "American" B.179: 2. Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6acc0dcb6af7e9f805299e3ca1951e5d140cba9cc382e9ac3dd05de3028eee8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF055003062.
8 Slavonic Dances, Op. 72, B. 147: No. 2 in E Minor (Allegretto grazioso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15160bd917dd5c2d9ee408e5094e7ba2e4f60a1918b13abc4571eedd4d35e565. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057300651.
Ciganské melodie, Op. 55, B. 104 - Arr. by Jiri Teml: IV. Kdyz mne stara matka
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df7cb915a89c738c6952a19eeb58bd56d6c5e4972f2941c085b473aa25b2d00. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960800340.
Symphony No. 7 in D Minor, Op. 70: III. Scherzo (Vivace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e401c08c79f2420bd4418e96edf812e2ac78b86c966a16d2a5b61ac95a332d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057101433.
String Quartet No. 12 In F Major, Op. 96 - "American" B.179: 4. Finale (Vivace ma non troppo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f48b6ae435e6a1654ea7dae3883cf41e429b7f91019c5c63555bd827a1d6233. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058602034.
Rusalka, Op. 114, B.203 / Act 1: Mesicku na nebi hlubokém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8138992821835557d071cac7c1115a94a09e82637860560c6ae1fc263b45835f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960300069.
Stabat Mater, Op. 58, B.71: 3. Coro "Eia mater, fons amoris"
Chor der Sächsischen Staatsoper Dresden; see Dresden State Opera Chorus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29b96c01ebc2160b485c52835ff6ff62b217ef589fd716efa908ba7603bf707. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960000463.
8 Slavonic Dances, Op. 46, B. 83: No. 2 in E Minor (Allegretto scherzando)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3391095ee276222f887de79c1c07e01e69e90dc13cf4845a1be221751f1c5cc1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057300341.
Symphony No. 8 in G Major, Op. 88, B. 163: I. Allegro con brio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db6be9eff8eca7ce8f325d009134d94f497a674b8cd9cfa85f8f84ceb032779. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056601311.
Cello Concerto in B Minor, Op. 104, B. 191: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe512e44334652919e152766038be7bf1dd9021fb1dc5c1346b1464dabad75b4b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056800352.
Cello Concerto in B Minor, Op. 104, B. 191: II. Adagio ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21b8d8c07cdcca9c8cdecc6eba4e21774d291fdd9fcd0bcbea015c3c9876313. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056800353.
Cello Concerto in B Minor, Op. 104, B. 191: III. Finale. Allegro moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74b4af69dfb3af9ef981311e6f7f29742d572a058094b3b0aa65b8bf7c109cb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056800354.
Othello Overture, Op. 93, B. 174 - Live at Philharmonie, Berlin, 1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71368128036c15d572c72799bda130515af2721a11262db7a5f2c4688ea8ae8e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059703790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1dbe5917b68b596ebda3593d047559ef11362a815ab927ddee29cc328a950c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059302641.
Serenade For Strings In E Major, Op. 22, B.52: 2. Tempo di valse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb315791dc08ccedd102486adcaa3ed7df433f2cb3209424bbbbc7527c7985bb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056904231.
Symphony No. 9 in E Minor, Op. 95, B. 178, "From the New World": IV. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6af1ba4850e40b0dca91999e6fc492f701cb3772e22e775c5c15b33ecf24a32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057201034.
Piano Quintet in A Major, Op. 81, B. 155: I. Allegro, ma non tanto - Live in New York City / 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf828ad3e706482fca46c362d89a7eea93d081a7a4a56960e2ebff028aa4433. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961802261.
String Quartet No. 12 In F Major, Op. 96, B.179 - "American": 4. Finale (Vivace ma non troppo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f61e7d8914d2f461f9caf8ed0fecee3170d888ae150b60ea60b36a66ffdc65. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058403001.
String Quartet No. 1 in D, Op. 11 - orchestral version: 2. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624c4a83ffd2c8abc9e4ab1e15bd3ea89c39ce23476e890a9d3149b88266ab8a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507100162.
Swan Lake, Op. 20, TH.12 / Act 1: No. 5b Pas de deux: Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d8bddc01e65ed17fc46249042258f19f1a82083a0c4083ed51c67bfab3f698. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506201317.
Piano Trio in A Minor, Op. 50, TH.117: 2. (A) Tema con variazioni: Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090216d37e2390c6b9b6031c6706135b2f0067b760ea34093a6e10c82d18abd7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508800303.
Piano Trio in A Minor, Op. 50, TH.117: Var. XI: Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824c8d2b09e0bf50660b43ae2fe765182b7d6e924d91dbcf432cef91bd7352ab. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508800317.
Serenade for String Orchestra in C Major, Op. 48, TH 48: III. Elégie: Larghetto elegiaco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3390b80070db729c21ff5501adf4c4317579430af63ada050888fd22b93623. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508604203.
Piano Trio No. 2 in G, Op. 1 No. 2: 1. Adagio - Allegro vivace - 1964 Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f5bac4137ba45856f584732b3e5cd678c5a4c51df145a74676ffaa3440d905. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400106.
Piano Trio No. 2 in G, Op. 1 No. 2: 2. Largo con espressione - 1964 Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa278a4c913dcc1ad4d55d7d850ba5de5f3a52612ce1fdb950e67de9580baa5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400107.
Piano Trio in B-Flat Major, Op. 11 "Gassenhauer": II. Adagio - 1964 Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b6eb2ea03a6d53b1ea68ebaddccf4fdef21bf3f9567f7958d009455ab32d24. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400128.
Piano Trio No. 1 In E Flat, Op. 1 No. 1: 2. Adagio cantabile - 1964 Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe063e1541f26360135ed76efe0eaf77e44c6e197d11b6a4373e136ff35a9ab65. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506400103.
Piano Quartet No. 2 in A, Op. 26: 1. Allegro non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b430e2a3c45f408874a714757a3178136d08546cd7d652a5d4dbc9b39aad73. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300517.
Piano Quartet No. 1 in G minor, Op. 25: 2. Intermezzo (Allegro ma non troppo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67fee0acc05e264daf06cc4bdd11c75b0de914b4380d83a9685a5cdfdd5754c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300514.
Piano Quartet No. 1 in G minor, Op. 25: 3. Andante con moto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e5e1798804b7a0570e7bf48e9104584b2b76da2e549ee45321c2ac39473535a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300515.
Piano Quartet No. 2 in A, Op. 26: 3. Scherzo (Poco allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc24d2c19a2461793af8c955c05db0b35fae49a98eef5ac1d2f8bd7b9dc9be39. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300519.
Piano Quartet No. 1 in G minor, Op. 25: 4. Rondo alla Zingarese
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4150a72b843aeb7240f58a4a50385d57d1edfb75ddc4fdf8cef27edbdedc6117. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300516.
Piano Trio No. 4 in A, Op. posth.: 2. Vivace - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e421dc1fbfb69e89b88411451e058fc5c45888a58ecd3601617a895abb8555. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA501906602.
Piano Quartet No. 3 in C minor, Op. 60: 3. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6eabeab30744c88ffcf03c7103135164c0a5bfa185cabcad6e18cfec1ecef99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507300523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7471537936de13d9ee393797d1e27fc4086a7d7488e650cf90ca1202425064d5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN961001990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6af1ba4850e40b0dca91999e6fc492f701cb3772e22e775c5c15b33ecf24a32. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF057201034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb315791dc08ccedd102486adcaa3ed7df433f2cb3209424bbbbc7527c7985bb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056904231.
Piano Trio No. 2 in C, Op. 87: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f181a7cc6fc3eb2b4028e8615db077a55dd5dba43541bb959848d37b749867d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600005.
Piano Trio No. 2 in C, Op. 87: 4. Finale (Allegro giocoso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed197f593d369888b6e13525c01b142584c9c1927521b150f2b0e208f2a6304a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506600008.
Horn Trio In E Flat, Op. 40: 2. Scherzo (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6db8b7b7228baf8e75ba3d1c67123e827b7485018549b6a425c8d32fd0000f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507530205.
Piano Trio No. 3 in C minor, Op. 101: 2. Presto non assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7c50d9dcbb1327096f350cd0caaa1908cdf28b86d09c07abc57727ed1a08eb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA501906606.
Piano Trio No. 3 in C minor, Op. 101: 3. Andante grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142b4aeda088def6ccb5f1fac932ed1c8ffdb3faab61cb96beb6ebf364eaaaa5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA501906607.
Horn Trio In E Flat, Op. 40: 4. Finale (Allegro con brio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d1646b29b1af75a88e1e690fe319bfa3b907e88b1d68a0c706ccdd481f4476. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507530207.
Clarinet Trio in A minor, Op. 114: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x733fb94c0caeeacd9bceaccaf2dfcdedebb2c0d55d2a1e7e957e4440c269c143. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507812101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300f07dba382d46a5498a7f9bcfc76b4d35baada5468972d3f03607911988a2d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209301200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6b81f0f8c65874db8a44504c6ffd40c661d9fb6a25f25f6eede114545bd36a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8802396.
Menahem Pressler - A 90th Birthday Celebration - Live in Paris
Dvořák: Piano Quintet in A Major, Op. 81, B. 155: I. Allegro ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b507a790daf592b123ef9d1e24e1fb0d8fd83602b971b9ebf550a21fdabd8e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPFW1400013.
Emerson String Quartet: Schubert, Mendelssohn & Schumann
Sonata for Clarinet and Piano No. 1 in F minor, Op. 120 No. 1: 3. Allegretto grazioso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c48324ff64e05de3d0e8c5b52cbbd9c56ff95c25a03eb917fc79f8a9bc9da00. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507921303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142b4aeda088def6ccb5f1fac932ed1c8ffdb3faab61cb96beb6ebf364eaaaa5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA501906607.
String Quartet No. 1 in C Minor, Op. 51 No. 1: II. Romanze. Poco adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d06afa85b19ca18b2d8af55c4c62bdb7dfe66eea43de91fb6d452c6acec658. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA506700398.
Beethoven: Triple Concerto; Choral Fantasy
Beethoven: Triple Concerto; Choral Fantasia; Coriolan & Egmont Overtures
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ed53f68177ce8f750cd4bd57b256009870e271d16d8d914ca3b5b086715d4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC9602537.
Beethoven: The 11 Trios for Piano, Violin & Cello by the Beaux Arts Trio (2023 Remastered, Studio 1965)
Ernst Bacon: Remembering Ansel Adams and Other Works