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 0xa47cf46fe116682ce9eb801b81260464294e5a940596bf213732e56498564e54. 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/a13330c8-fe0f-4213-8fed-a7de8f722c1d.json and https://artists.proofprofile.net/proofs/artist/a13330c8-fe0f-4213-8fed-a7de8f722c1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x98c1d507bcdeb43fd98ec34e68f400efa0209014da98723472fd3c244f32a0ad. 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/HKI199202613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4079b7ca9bd5836eef67b3cbed22a4451a2eca4049833f620eddfb8b72341d. 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/USB8U1035279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabea16c64b46800c0298380e996c01fa7a664873174d0c2150fd320f2404e7fc. 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/USB8U1035283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c54b9f17c7096becf050ce37dec42d0063345bf20cc7b05e39f1ec6b90b442. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), registered by our 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/USB8U1035293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe779ab48a5d499ab366fb761285a8590a7cc4e02856d683ef5bcbbf6c6d8b313. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USB8U1035294.
Canon and Gigue in D Major, P. 37: No. 1, Canon
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101 Classics - The Best Loved Classical Melodies
An der schonen, blauen Donau (The Beautiful Blue Danube), Op. 314
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Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso (Opening)
Polish National Radio Symphony Orchestra
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Emperor Waltz, Op. 437: Kaiser Walzer (Emperor Waltz), Op. 437
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The Danube Waves: Valurile Dunarii (The Danube Waves)
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Bagatelle in A Minor, WoO 59, "Fur Elise"
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Serenade for Strings in C Major, Op. 48: II. Walzer
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Les Patineurs, Op. 183, "The Skater's Waltz"
Slovak State Philharmonic Orchestra, Kosice
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb241860b5b9e2582e331726a87da0bea187246c364bbb7accd63788fe9e98bb0. 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/HKI199245308.
The Nutcracker Suite, Op. 71a: VIII. Waltz of the Flowers
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Piano Sonata No. 11 in A Major, K. 331: III. Alla Turca: Allegretto
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A Guided Tour of the Baroque Era, Vol. 2
Lohengrin, Act III: Wedding March (arr. for organ)
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Water Music: Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
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A Midsummer Night's Dream, Op. 61, Act V: Wedding March (arr. for organ)
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Organ Symphony No. 5 in F Minor, Op. 42, No. 1: III. Toccata: Allegro
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Art & Music: Canaletto - Music of His Time
50 of the Best: Classical Music for Christmas
Vivaldi: 4 Seasons (The) / Wind Concertos
Festgesang, MWV D4, "Gutenberg-Kantate": No. 2. (adap. W.H. Cummings as Hark! The Herald Angels Sing)
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Bach-Humbug: Classical Music for Christmas
Czech Folk Songs: Hushabye, My Little Angel /Childhood/ (I., Page 23)
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Czech Folk Songs: Rock-a-Bye Baby /Childhood/ (I. Page 24)
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Czech Folk Songs: Play with a Crib /Anniversary Songs and Rhymes/ (I. Page 130)
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Czech Folk Songs: Spring Is Arriving - Come, Boy /Songs of Youth and Virginity - Youth, Beauty, Joy/ (II., Page 83+319)
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Czech Folk Songs: Oh Acorn, Acorn /Lovesickness/ (II., Page 300)
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Czech Folk Songs: A Pear Tree in the Open Field /Jokes and Jibes/ (III., Page 154)
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Moravske Dvojzpevy, Op. 32: No. 1, A Já Ti Uplynu
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Moravske Dvojzpevy, Op. 32: No. 3, Dyby Byla Kosa Nabróšená
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Moravske Dvojzpevy, Op. 32: No. 4, V Dobrým Sme Se Sešli
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Moravske Dvojzpevy, Op. 32: No. 5, Slavíkovský Polečko Malý
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Moravske Dvojzpevy, Op. 32: No. 6, Holub Na Javoře
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Moravske Dvojzpevy, Op. 32: No. 8, Skromná
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Moravske Dvojzpevy, Op. 32: No. 11, Zajatá
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Moravske Dvojzpevy, Op. 32: No. 13, Šípek
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40 of the Best: Classical Music to Drive With
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Joint Concerto: Corelli, Händel, Krček, Plánický, Michna (Live)
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Takako Nishizaki Plays Suzuki Evergreens, Vol. 6
String Quartet No. 15 in D Minor, K. 421: III. Menuetto (arr. for violin and piano)
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String Quartet No. 15 in D Minor, K. 421: III. Menuetto
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Concerto Grosso in F Major, Op. 6, No. 9: III. Corrente (arr. for violin and piano)
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Concerto Grosso in F Major, Op. 6, No. 9: III. Corrente
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: I. Andante
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: II. Allegro
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: III. Adagio
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Violin Sonata No. 3 in A Major, Op. 1, No. 3, HWV 361: IV. Allegro
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Violin Concerto in A Minor, BWV 1041 (arr. for violin and piano): I. Allegro moderato
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Violin Concerto in A Minor, BWV 1041 (arr. for violin and piano): II. Andante
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Violin Concerto in A Minor, BWV 1041 (arr. for violin and piano): III. Allegro assai
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Violin Concerto in A Minor, BWV 1041: I. Allegro
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Violin Concerto in A Minor, BWV 1041: II. Andante
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Violin Concerto in A Minor, BWV 1041: III. Allegro assai
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Cello Suite No. 1 in G Major, BWV 1007: VI. Gigue (arr. for violin and piano)
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Cello Suite No. 1 in G Major, BWV 1007: VI. Gigue
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Cello Suite No. 1 in G Major, BWV 1007: III. Courante (arr. for violin and piano)
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Cello Suite No. 1 in G Major, BWV 1007: III. Courante
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Violin Sonata in D Major, Op. 5, No. 1: III. Allegro (arr. for violin and piano)
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Sonata in D Major, No. 1: Violin Sonata in D Major, Op. 5, No. 1: III. Allegro
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Jaroslav Krček: String Quartets Nos. 1-4
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Violino - Bach, Fiocco, Krček, Sedláček, Kříž
Krecek: Stones to Bread - Symphony No. 4
3 Bach: Johann Sebastian Bach, Carl Philipp Emanuel Bach, Johann Christian Bach
Corelli: Concerti Grossos, Op. 6 (Selections)
Manfredini: Concerti Grossi Op. 3, Nos. 1-12
Concerto Grosso in E Minor, Op. 3, No. 3: II. Largo
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Concerto Grosso in C Minor, Op. 3, No. 11: II. Adagio
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Concerto grosso C-Dur, Op. 3 Nr. 12: I. Pastorale: Largo
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Concerto Grosso in B-Flat Major, Op. 3, No. 5: I. Adagio
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Concerto Grosso in B-Flat Major, Op. 3, No. 5: II. Allegro
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Concerto Grosso in E Minor, Op. 3, No. 6: I. Adagio
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Concerto Grosso in E Minor, Op. 3, No. 6: II. Allegro
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Concerto Grosso in D Major, Op. 7, No. 1: I. Andante
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Concerto Grosso in D Major, Op. 7, No. 1: II. L'arte della fuga, a 4 parte reale
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Concerto Grosso in D Minor, Op. 7, No. 2: II. Allegro Assai
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Concerto Grosso in D Minor, Op. 7, No. 2: III. Andante
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Concerto Grosso in D Minor, Op. 7, No. 2: IV. Allegro
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Concerto Grosso in C Major, Op. 7, No. 3: I. Presto - Tempo Giusto
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Concerto Grosso in C Major, Op. 7, No. 3: II. Andante
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Concerto Grosso in C Major, Op. 7, No. 3: III. Allegro Assai
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Concerto grosso in D Minor, Op. 7 No. 4: I. Andante
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Concerto grosso in B Major, Op. 7 No. 6: I. Allegro Moderato - Andante - Grave
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Concerto grosso in B Major, Op. 7 No. 6: II. Presto - Adagio
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Tchaikovsky / Dvorak: Serenades for Strings
Tchaikovsky & Dvořák: Sérénades pour cordes
Jean-Baptiste Krumpholtz: Simphonies for Harp and Orchestra 3
Concerto Grosso in C Minor, Op. 2, No. 1: I. Andante
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Concerto Grosso in C Minor, Op. 2, No. 1: II. Allegro
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Concerto Grosso in C Minor, Op. 2, No. 2: IV. Allegro
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Christmas Carols from the Jistebnice Hymnal
Locatelli: Concerti Grossi, Op. 1, Nos. 7-12
Concerto Grosso in F Major, Op. 1, No. 7: I. Allegro
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Concerto Grosso in F Major, Op. 1, No. 7: II. Largo
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Concerto Grosso in F Major, Op. 1, No. 7: III. Allegro
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Concerto Grosso in F Minor, Op. 1 No. 8 "Christmas": I. Largo - Grave - Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e3e00dd16e96c5910e10d59898a71ddfc7d6400258402bafb7b72776b2809b. 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/HKI199509304.
Concerto Grosso in F Minor, Op. 1 No. 8 "Christmas": II. Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d94f2872c376b15e53a9936c69cdf6ec26178f5fab9334ed4224e06d194d44. 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/HKI199509305.
Concerto Grosso in F Minor, Op. 1 No. 8 "Christmas": III. Largo - Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c69de30b1c9dc74cfdb78787942fb7e66afa935a17b0adaa41d4baf2af9b493. 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/HKI199509306.
Concerto Grosso in F Minor, Op. 1 No. 8 "Christmas": IV. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f26fc36d8aff090d7f225f87fb6731e6fea9506ffad5938c0c2250d36c188a. 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/HKI199509307.
Concerto Grosso in F Minor, Op. 1 No. 8 "Christmas": V. Pastorale
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe15060b186f67b4a8cd230697d115622eb862bd1014cad83b863501392e7a6c5. 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/HKI199509308.
Concerto Grosso in D Major, Op. 1, No. 9: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2840d1a89913ede42f10e3b5a6afa1507c2e45e0150c584da0b0c863518bf1c7. 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/HKI199509309.
Concerto Grosso in D Major, Op. 1, No. 9: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92cddfc967f6185e7830db5e7050439a7e98f62bbfda8b3ae715c9749e8f84e. 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/HKI199509310.
Concerto Grosso in D Major, Op. 1, No. 9: III. Allemanda. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8566db8660536c7ad8d6e86fd526abae5e281ecb3ed8ebe9ea20ceb76bdca03e. 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/HKI199509311.
Concerto Grosso in D Major, Op. 1, No. 9: IV. Sarabanda. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed881ec3f7eef4fd68aa5d96ae1b0d37dc5d87eeb6a1d208a17d15073c22efa4. 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/HKI199509312.
Concerto Grosso in D Major, Op. 1, No. 9: V. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0eb02789550beab66af2f15969b1e4d4e103d86885da461068616797d228898. 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/HKI199509313.
Concerto Grosso in C Major, Op. 1, No. 10: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d137500de3d90dc3420bc819c30d2e34b751bb284654ba595eed936ba7abcb0. 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/HKI199509314.
Concerto Grosso in C Major, Op. 1, No. 10: II. Allemanda. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adc8ee5bd7bd8bd61404809383695e676e41f60de90692d1ec91e36010cee18. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/HKI199509315.
Concerto Grosso in C Major, Op. 1, No. 10: III. Largo - Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18112fe62d22936dfe51ca1c3b373fd1bf2635a12e7f5b1ba4852290d916633e. 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/HKI199509316.
Concerto Grosso in C Major, Op. 1, No. 10: IV. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbdabb0a3dbe11cf848a5b7d9100fadb5742f72255c24eff15810759dbe1b2f. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), registered by our 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/HKI199509317.
Concerto Grosso in C Minor, Op. 1, No. 11: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2473ea338f613c432fad21f052bdc1d0a1b7430d99fb5d91f57210c58e26381b. 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/HKI199509318.
Concerto Grosso in C Minor, Op. 1, No. 11: II. Allemanda. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8e82f5f3950054def129095dafa17f16bdc31e888e6b8b7c877784a7c1cbe. 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/HKI199509319.
Concerto Grosso in C Minor, Op. 1, No. 11: III. Sarabanda. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775aed6296703c235d98f5b0b199696fa361c8d42341694b422e41104b6a822. 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/HKI199509320.
Concerto Grosso in C Minor, Op. 1, No. 11: IV. Gigue. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b7adf060c7a5e0acf2f4a059c5df7dee1c09558deab6c1cb404c87e65f2ea5. 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/HKI199509321.
Concerto Grosso in G Minor, Op. 1, No. 12: I. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9390e4062a9f3dd2c633c7148a3a4cb44ede591ceaa59c7a5d5012fd791ccd2. 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/HKI199509322.
Concerto Grosso in G Minor, Op. 1, No. 12: II. Allemanda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc435990255305549000ef0a0239677de7bf757f328a8eed12536f52fa08855e8. 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/HKI199509323.
Concerto Grosso in G Minor, Op. 1, No. 12: III. Sarabanda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96793f4c32ff93a9efa77e8b1f18a22b0f08efe7f0cf59bbedc8a9327158694. 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/HKI199509324.
Concerto Grosso in G Minor, Op. 1, No. 12: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc82d0b33631b20ef4fec6320eba5df5cd86984697fd255cc6af01fea1c3782a. 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/HKI199509325.
Concerto Grosso in G Minor, Op. 1, No. 12: V. Gavotta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3292e3f9fca1fed4cc6ad903296cf242225c897c83ea8696e27556534dfb82a. 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/HKI199509326.
Locatelli: Concerti Grossi, Op. 1, Nos. 1- 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d72423a996891194205bf2cdb8b074582832a66345913fdd3335c357485bcf0. 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/HKI199257801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cac28770d8e7420bb5a33074ef7372bb7f3138cdb39c62079725ddcb2b67b4f. 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/HKI199257803.
Oboe Concerto in D Minor, BWV 1059R: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30eaf9e0caae9345b337433cc0e4616bbaaa458a85584157f7a7be407406279. 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/CZA169402076.
Oboe Concerto in D Minor, BWV 1059R: III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491e63831f42f3094265d462a9018b9e64b15394174617a8b4d3993fb0e97d6f. 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/CZA169403076.
Pěnička (Lidové Písně V Úpravách Jaroslava A Josefa Krčkových)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da6b006458e2a356a51441054064d584e32477f3556d0dd6e6936851a4b40e2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebeed37eee1ba914286fd3165392a167dbe076c3dc99f2ee0d9ff5af79958076. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/CZA161000805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c23886f4033f5789b02e47fbc74a25ba7775740d80849379a6c3cc5e92db0e. 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/CZA161000806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6c7cc300248406beb15d38d12062e69039299501e1cd22d30f114e2061b91b. 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/CZA161000813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd223ee47dcc4a634ce97af9f22b1e493ee2c55f853678b24e0cc118d9429c44e. 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/CZA161000825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9cb3894fd1913ca9e2a5b46496ab1fac0114d82c3a375dd3fd100ebfec4299f. 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/CZA161000826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ccd9d0d686ac63a06973fc0ace9a143b75ac0c04130cb6eeee4680d9aaa8a2d. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161000827.
Kukačka (Lidové Písně V Úpravách Jaroslava A Josefa Krčkových)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06f021b6c35c66590f06c991ded8bddbf3e7d26ab0481897c333956f8b674ee. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CZA161000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be45c9c7e9fce98f83dc890b343e0dc1b2737bc0e9adad5cd99fc01e3a7664b. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161000360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31dfc7e3837cdd02bca4c3dd95a8d42fbbc6bf48bdae6d31dcdf337f51b98611. 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/CZA161000362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6856c83302956167658ac4d6168bb8caf897941f2ee5bcf4436cc6b2e2a76d57. 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/CZA161000365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47bad28f690740bd28567e663a008430608899b494030d4891c5d3d0cd747ae. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA161000369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219379c25ee1950d46d351b3510168c4eec43cdffef99cdea47d5c78703886ed. 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/CZA161000371.
Krček: Symphony No. 2, Testamenti, Three Songs of Love
Hamel: The Arrow of Time / The Cycle of Time
Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a15593629171d65dfe5fc9b7a3bb5bb39cd35f703e185f084dc2f5724fe4e1. 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/HKI199206114.