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 0xf487f7ae1bf21f1815d96462326c12cb86033595e4116dc87c8aae3c109ab05a. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa9f00cb-5255-4ea2-b9fa-259d4e87a006.json and https://artists.proofprofile.net/proofs/artist/fa9f00cb-5255-4ea2-b9fa-259d4e87a006.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piano Concerto No. 1 in D Minor, Op. 61: I. Allegro maestoso
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 0xfee38cedc6a7083a6fd46f3008b57813419e41c14cca1b0407c0003c8394d52b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9200133.
Piano Concerto No. 1 in D Minor, Op. 61: III. Rondo vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9580e76b81feb0c4d3630d9c91665f97c3c03c59b3b315f77140407138813c5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USZGD9200135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2018f702a62add4141a97be1756b707963c9aabff4a60b26ccb3aa608d03d. 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/ITS041713752.
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Piano Concerto in E Major, Op. 59: II. Andante
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Piano Concerto No. 4 in D Minor, Op. 70: II. Andante
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I Like the Cello! (Menuetto Kids - Classical Music for Children)
Suite for Violoncello Solo No. 1 in G Major, BWV 1007: I. Prelude
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Rubinstein: Concierto para piano No. 4 in D Minor, Op. 70 - Música para piano
Los Grandes de la Musica Clasica - Igor Stravinski Vol. 3
The Tale of Tsar Saltan, Op. 57: Flight of the Bumblebee
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Peer Gynt Suite No. 1, Op. 46: In the Hall of the Mountain King
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Sonata No. 14 in C-Sharp Minor for Piano, Op. 27:2, "Moonlight": III. Presto agitato
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Fantaisie Impromptu in C-Sharp Major, Op. 66: Allegro agitato
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Concerto Grosso No. 8 in G Minor, Op. 6, "Christmas Concerto": Allegro
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Concerto in D Minor for Violin and Strings, BWV 1052R (after Keyboard Concerto No. 1 in D Minor): I. Allegro
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The 99 Most Essential Masterpieces of the Classical Era
Concerto No. 3 in G Major for Violin and Orchestra, K. 216: II. Adagio
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Sonata in G Major for Viola da gamba and Lute: I. Allegro - II. Adagio - III. Minuetto
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Sonata No. 3 in A Major for Cello and Piano, Op. 69: III. Adagio cantabile - Allegro vivace
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Sonata in F-Sharp Minor for Piano, Op. 26/2: I. Allegro con espressione
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The Greatest Classical Collection Ever: 222 All Time Favorite Classics
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffcdc869e694e91e8b522982a055e206af9ae3618ef31b910355cddd2537fec. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R31334319.
Carmina Burana: O Fortuna - Fortune plango vulnera
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893f2168478f309886e597ac630db8a17592dff0731a36cebe95efc894371398. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R31334321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6938cda75123d01285338ce977f6d66faeb8c801b449e753d0fd366e39b285e9. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US4R31334322.
Also Sprach Zarathustra, Op. 30: I. Introduction (Sonnenaufgang)
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Piano Sonata No. 14 in C-Sharp Minor, Op.27, No. 2 "Moonlight Sonata": I. Adagio Sostenuto
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Piano Sonata No. 14 in C-Sharp Minor, Op.27, No. 2 "Moonlight Sonata": III. Presto agitato
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The City of Prague Philharmonic Orchestra
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A Midsummer Night's Dream, Op. 61: IX. Wedding March
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Symphony No. 5 in C Minor, Op. 67: I. Allegro con brio
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Vienna Blood Waltz (Wiener Blut), Op. 354
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Bagatelle No. 25 in A Minor, WoO 59 "Für Elise"
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Symphony No. 9 in D Minor, Op. 125 "Choral": IV. Presto - Allegro assai - Chorale Finale (Ode To Joy)
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On the Beautiful Blue Danube Waltz, Op. 314
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Piano Concerto No. 2 in C Minor, Op. 18: II. Adagio sostenuto
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Violin Concerto in D Major Op. 77: III. Allegro giocoso, ma non troppo vivace - Poco piu presto
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Waltz No. 6 in D-Flat Major, Op. 64, No. 1 "Minute"
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Cello Suite No.1 in G Major, BWV 1007: I. Prelude
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Liebestraum No. 3 in A-Flat Major, S. 541, No. 3
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The Four Seasons, Op. 8, Concerto No. 1 in E Major, RV 269 "La primavera" (Spring): I. Allegro
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The Four Seasons, Op. 8, Concerto No. 3 in F Major, RV 293 "L'autunno" (Autumn): III. Allegro
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The Four Seasons, Op. 8, Concerto No. 4 in F Minor, RV 297 "L'inverno" (Winter): I. Allegro non molto
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The Four Seasons, Op. 8, Concerto No. 4 in F Minor, RV 297 "L'inverno" (Winter): III. Allegro
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Top 100 Romantic Classics: Classical Music for Lovers
Top 100 Power Classics: The Most Dynamic Classical Music of All Time
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Requiem in D Minor, K. 626: III. Sequentia "Dies irae"
Radio Symphony Orchestra Ljubljana Choir
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Also Sprach Zarathustra, Op. 30: I. Prelude (Sonnenaufgang)
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Symphony No. 4 in A Major, Op. 90 "Italian": I. Allegro vivace
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The 50 Most Essential Beethoven Masterpieces
Symphony No. 5 in C Minor, Op. 67 "Fate": I. Allegro con brio
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Bagatelle in A Minor, WoO 59 "Für Elise"
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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Blue Edition - Mozart: Symphony No. 36 "Linz Symphony" & Piano Concerto No. 8 "Lützow"
Red Edition - Mozart: Piano Concerto No. 6 & Serenade No. 9 "Posthorn Serenade"
Blue Edition - Mozart: Piano Concerto No. 6 & Vesperae solennes de confessore, K. 339
The Masterpieces - Beethoven: Violin Concerto in D Major, Op. 61
Everhøj Suite Op.100, Concertino for Two Horns & Orchestra Op.45, Piano Concerto in C major Op.7
Paganini: Violin Concerto No. 1 - Viotti: Violin Concerto No. 22
Classical Selection - Mozart: Piano Concertos Nos. 6 & 24
Classical Selection - Mozart: Piano Concertos Nos. 8 & 15
Classical Selection - Rubinstein: Piano Concerto No. 4
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Piano Concerto in E Major, Op. 59: I. Moderato
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Piano Concerto in E Major, Op. 59: III. Scherzo. Vivace
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Piano Concerto in F Minor, Op. 5: I. Allegro maestoso
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Piano Concerto in F Minor, Op. 5: II. Adagio
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Piano Concerto No. 2 in C Minor, Op. 56: II. Adagio
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Piano Concerto in F Minor, Op. 5: III. Rondo. Allegro
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Mozart: Piano Concertos Nos. 6 & 8 "Lützow"
Beethoven: Concierto para violín, violonchelo y piano in C Major, Op. 56
Concierto para violín, violonchelo y piano in C Major, Op. 56, " Triple Concierto " : I. Allegro
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Concierto para violín, violonchelo y piano in C Major, Op. 56, " Triple Concierto " : II. Largo - Attacca
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Concierto para violín, violonchelo y piano in C Major, Op. 56, " Triple Concierto " : III. Rondo alla polacca
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Peter en de Wolf: Peter gaat naar de wei
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Peter en de Wolf: De eend en het vogeltje kibbelen en de kat beloert hen
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Peter en de Wolf: De eend wordt opgegeten door de wolf
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Peter en de Wolf: De wolf aast op de vogel en de kat
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Peter en de Wolf: Peter laat de wolf vangen
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Peter en de Wolf: In optocht naar de dierentuin
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Het Olifantje Babar, FP 129: In het oerwoud is een olifantje geboren
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Het Olifantje Babar, FP 129: Babar schept met een schelp
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Het Olifantje Babar, FP 129: Een ritje op moeders rug
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Het Olifantje Babar, FP 129: Een gemene jager richt op hen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77244ecb49f47df103cb18572f8a10d979814fa5b392a0b763816f443d476af3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1512018.
Het Olifantje Babar, FP 129: Babar vlucht
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Het Olifantje Babar, FP 129: Babar mag bij een oude vrouw wonen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf96333a504c164970ae3be6e7092f954a2a05e0c4ed0e22def5bb146adb8cb3d. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1512020.
Het Olifantje Babar, FP 129: Toch is Babar niet echt gelukkig
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a33ab7007d439226ae206e82cea4ed0158198fa25c40267f75e622fdd2a7254. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1512022.
Het Olifantje Babar, FP 129: Twee jaren gaan voorbij
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Het Olifantje Babar, FP 129: In de taartjeswinkel
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Het Olifantje Babar, FP 129: De olifanten zijn op zoek naar Amur en Celestien
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Het Olifantje Babar, FP 129: De oude vrouw is verdrietig
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Het Olifantje Babar, FP 129: De olifanten gaan terug naar het Oerwoud
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Het Olifantje Babar, FP 129: De koning der olifanten sterft
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Het Olifantje Babar, FP 129: Babar wordt koning en Celestien zijn koningin
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Het Olifantje Babar, FP 129: Babar gaat trouwen
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Het Olifantje Babar, FP 129: De eerste gasten komen aan
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Het Olifantje Babar, FP 129: De bruiloft van Babar
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b779482054d2ffa6b9e2b08117da6121cb9e85a6028089132721b5543b1026. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFMF1512035.
Het Olifantje Babar, FP 129: Het feest is voorbij
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b58f8ef22bcd32d0296d3c613de65d781c9677e2f5348f74e92768011236a5. 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/SEWDL0778510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a6773d927f2f06963b8c1b76ac98ac6965fa97993b683088f31fd87ce1586d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0700214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadc8f65fd0203e1f9fb2fe6110c6852800aac91d15e2094c83d61ab42f9914e. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB790301862.
Piano Concerto No. 5 in F Minor, BWV 1056: II. Arioso: Largo
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Children's Album, Op. 39: No. 16, Old French Melody
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e732cad7d3280e49a5e0c5528ddb7e8c0ec79121435292577cfde0f6e907edf. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEE9169180.
The Nutcracker, Op. 71, Act II: XIVc. Var. 2, Dance of the Sugar-Plum Fairy
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Kinderszenen, Op. 15: IV. Bittendes Kind
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Scheherazade, Op. 35: III. The Young Prince And The Young Princess, Andantino quasi Allegretto
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4955f95dd9c254c76757e8bdaf5eb66a88464c5b10fc1775ee56a8f22ff6ee3. 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/SEWDL0566203.
Nocturne No. 8 in D-Flat Major, Op. 27: Lento sostenuto
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The Sleeping Beauty, Op. 66: Pas de six, Var. 3, Miettes qui tombent
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ae09d3f1e41aa75e5e6097d4af16aaa2f4fad31c9818da441c303822ce4ce2. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0722102.
The Nutcracker, Op. 71, Act I: VI. Scene, Dance of the Grandfathers (attacca)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb43d5e076da3afb047d9d3f95ab9fc33a8451e3ced0d326f76d5e16bb2f8217. 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/SEWDL0535406.
Kinderszenen, Op. 15: I. Von fremden Ländern und Menschen
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Children's Album, Op. 39: No. 21, Sweet Dreams
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String Quartet No. 2 in D Major: III. Notturno (Andante)
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Nocturnes, Op. 9: No. 2, Andante in E-Flat Major
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The Sleeping Beauty, Op. 66: Pas de six, Var. 1, Candide
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a486606f41cf2ec6404c76b3040684e4e91362c75b085d6eb101df1f506af8. 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/SEWDL9547914.
Piano Sonata No. 11 in A Major, K. 331 "Turkish March": I. Tema con variazione
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Jeux d'enfants, Op. 22: III. La poupée (Andantino quasi andante)
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Nocturnes, Op. 32: No. 1, Andante sostenuto in B Major
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The Nutcracker, Op. 71, Act I: VIII. Scene, A Pine Forest in Winter
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556e8b67bbf24a199d518084bc8c34aeb9935f7dd11f83e4f19677ad996ce5c0. 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/SEWDL0714602.
Kinderszenen, Op. 15: XII. Kind im Einschlummern
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Die Zauberflöte (The Magic Flute), K. 620: Overture (from The Magic Flute)
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca50adfe4c54963392fb22ccdd3279290ded4cf58e5d2cbe6d554ef0067e865. 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/SEWDL0762206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fcfb1f39ea2c5f316c5ead48b64661763ff80a4d8265e6185fe58d9bf33738f. 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/SEWDL0501603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2731d2e81f7449dd15fe9adace111ff6710e5840d0b23c05d880abac3caa260b. 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/SEWDL0503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6b107bc1269b1ac85ca07a5d908144bd2960706ddbd33e1230fb899b77ecbc. 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/DEB790301857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0ea2193fdcaaf848b3744142d6977adb0d8c3ce426ab5c1b54a3cc17f45a3e. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0721903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24d40f3e45fadab1bd8616a614a68081856135cd81d16a5a74aed493f170934. 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/SEWDL0522003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4062291959cf1c1a2788b11c55ae05fed9ee4357034f2253dce44eb0366b13. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB790302943.
Le Nozze di Figaro (The Marriage of Figaro), K. 492: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c73fa17cd4476f896e79929cf41a812d0ae8a8d755d8c91ca33412542a6d70. 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/CAM460670222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c350a6570321ae894c79c1ccc1241ae035aab8037005b59a57abbbdc85fecd4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0721610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b28f5695f2db157c0bdc0979c7f24a430ed3390638a8454119656297922244. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0720710.
Il Matrimonio segreto (The Secret Marriage): Overture
Polish National Radio Symphony Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b3fae44366026c1222d5eba45298759d7d101c92a6e1c959ab1e82b186e96c. 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/SEWDL0510404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b58cc45a499c144241706478768f7bfc811a34738efc5a593b8e71f99c828bd. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0768604.
La Forza del Destino (The Force of Destiny): Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc1ebe46f4cb3196f932b2ffcd860c4854841bd8eb461c9129ad9b6fc823d2e. 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/SEWDL0552405.
Die Entführung aus dem Serail (The Abduction from the Seraglio), K. 384: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feae01ea0539fef14ba0e346fb2fb4eb6ddec88bef056f117680c77a57f20f2. 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/SEWDL0502709.
Don Giovanni (Don Juan), K. 527: Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12105b2b31f238f1e0a6fb6f94462add46fd4c38e71d7a8f779bc914b347d7ad. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWDL0732806.
Suite for Orchestra No. 3 in D Major, BWV 1068: II. Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62f9098349c3ef1a1f389d392bd511f3bc24c8d11f5fb155e92bfc572a4019d. 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/DEB790623870.
Concerto No. 1 in A Minor for Violin and Strings, BWV 1041: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a14a5b068f1eb7d77d5f532002763f38fd165d2e3afce7a907172a572c320f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB790303418.