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description: Karl-Heinz Steffens (born 28 November 1961) is a German clarinetist and conductor. Biography Steffens studied clarinet from 1982 to 1985 at the State University of Music and Performing Arts Stuttgart
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Concerto for Clarinet and Orchestra in A Major, K. 622: III. Rondo. Allegro
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Clarinet Sonata No. 1 in F Minor, Op. 120 (orch. L. Berio): II. Andante un poco adagio
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Jazz Suite: II. Lyrical Waltz
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track: Die Zauberflöte, K. 620: March of the Priests
track: Symphony No. 41 in C Major, K. 551, "Jupiter": I. Allegro vivace
track: Die Zauberflöte: Dies Bildnis ist bezaubernd schön
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track: Serenade No. 9 in D Major, K. 320 "Posthorn": III. Concertante - Andante grazioso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
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Symphony No. 41 in C Major, K. 551, "Jupiter": III. Menuetto: Allegretto
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subject of: OpenTimestamps Proof of Existence
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Serenade No. 9 in D Major, K. 320 "Posthorn": III. Concertante - Andante grazioso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
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Piano Concerto No. 21 in C Major, K. 467, "Elvira Madigan": II. Andante
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Concerto No. 21 in C Major, K. 467, "Elvira Madigan": II. Andante
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Concerto in C Major for Flute, Harp and Orchestra, K. 299: II. Andantino
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Concerto in C Major for Flute, Harp and Orchestra, K. 299: II. Andantino
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Piano Sonata in A Major, K. 331: III. Alla turca. Allegretto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Piano Sonata in A Major, K. 331: III. Alla turca. Allegretto
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Concerto No. 5 in A Major for Violin and Orchestra, K. 219 "Turkish": I. Allegro aperto
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  date published: 2026-07-08T03:22:41Z
audio: Concerto No. 5 in A Major for Violin and Orchestra, K. 219 "Turkish": I. Allegro aperto
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No Me Gusta la Música Clásica Pero Lo Que Hay Aquí Si. Especial Niños
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: Suite Bergamasque, L. 75 (Transcribed for Harp): III. Clair de lune
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Mozart: Complete Edition Vol.12: Arias, Lieder etc
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date published: 2000-01-01
track: Va, dal furor portata, K.21
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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track: Vorrei spiegarvi, oh Dio, K.418
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T07:16:32Z
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Mozart 225: Canons & Partsongs
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track: Leck mich im Arsch, K.231
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-07T16:07:00Z
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track: Bona nox, bist a rechta Ox, K.561
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
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Das Beste: Zur Entspannung
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T17:25:41Z
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Klassik am Kamin
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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    date published: 2026-07-02T16:51:38Z
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track: Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
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track: Suite bergamasque, L. 75: III. Clair de lune (Arr. for Orchestra)
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Serenade for Strings in E Major, Op. 22: II. Tempo di Valse
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Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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Suite bergamasque, L. 75: III. Clair de lune (Arr. for Orchestra)
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subject of: OpenTimestamps Proof of Existence
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String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto con un poco di moto - Trio
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audio: String Quintet in E Major, Op. 11, No. 5, G. 275: III. Minuetto con un poco di moto - Trio
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Symphony No. 5 in C-Sharp Minor: IV. Adagietto - Excerpt
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Canon in D Major for Strings and Continuo
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audio: Fantasia on Greensleeves
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Abendrot - Klassik zum Entspannen
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    date published: 2026-07-08T08:56:20Z
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    date published: 2026-07-08T08:56:20Z
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track: Symphony No. 36 in C Major, K. 425 "Linz": II. Poco Adagio
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track: Serse, HWV 40: Ombra mai fu, "Largo" (Arr. for Orchetra)
track: Symphony No. 9 in E Minor, Op. 95, "From the New World": II. Largo
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OpenTimestamps Proof of Existence
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Symphony No. 36 in C Major, K. 425 "Linz": II. Poco Adagio
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Serse, HWV 40: Ombra mai fu, "Largo" (Arr. for Orchetra)
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subject of: OpenTimestamps Proof of Existence
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Symphony No. 9 in E Minor, Op. 95, "From the New World": II. Largo
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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audio: Suite for Orchestra No. 3 in D Major, BWV 1068: II. Air
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Ave Maria
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by artist: Johann Sebastian Bach
by artist: Charles Gounod
by artist: Emil Klein
by artist: Hamburg Soloists
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Ave Maria
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Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romance. Andante
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subject of: OpenTimestamps Proof of Existence
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audio: Serenade No. 13 in G Major, K. 525, "Eine kleine Nachtmusik": II. Romance. Andante
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Frühlingsstimmenwalzer, Op. 410
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: Frühlingsstimmenwalzer, Op. 410
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Bagatelle in A Minor, WoO 59 "Für Elise"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Bagatelle in A Minor, WoO 59 "Für Elise"
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Cavalleria rusticana: Act I: Intermezzo sinfonico
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subject of: OpenTimestamps Proof of Existence
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audio: Cavalleria rusticana: Act I: Intermezzo sinfonico
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Vocalise, Op. 34, No. 14
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Canon in D Major for Strings and Continuo
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subject of: OpenTimestamps Proof of Existence
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audio: Canon in D Major for Strings and Continuo
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Hänsel und Gretel: Abendsegen
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by artist: Leonard Bernstein
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subject of: OpenTimestamps Proof of Existence
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The Nutcracker, Op. 71, TH 14 (Extracts): Act II Scene 3, Waltz of the Flowers
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
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Humoresque in G-Flat Major, Op. 101, No. 7 (Arranged for Violin & Orchestra)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Humoresque in G-Flat Major, Op. 101, No. 7 (Arranged for Violin & Orchestra)
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Kinderszenen, Op. 15: VII. Träumerei
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audio: Kinderszenen, Op. 15: VII. Träumerei
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Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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audio: Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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Liebestraum, S. 541, No. 3
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Thaïs: Méditation (Arr. for Violin and Orchestra)
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bc3f943d4f4b03e7589c9f80ca7abb148754a238db6b6f8427c37d0930f6a1. 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/USSM10410473.
  date published: 2026-07-08T03:20:19Z
audio: Thaïs: Méditation (Arr. for Violin and Orchestra)
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Fantasia on Greensleeves
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duration ms: 299733
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by artist: Ralph Vaughan Williams
by artist: Leonard Bernstein
by artist: New York Philharmonic
in album: Klassik zum Träumen
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T16:51:38Z
audio: Fantasia on Greensleeves
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Boléro, M. 81
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duration ms: 889946
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by artist: Maurice Ravel
by artist: Eduardo Mata
by artist: Dallas Symphony Orchestra
in album: Klassik zum Träumen
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genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
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additional property: CopyrightID
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC10100650
additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7430ae6c41e14dafc2ccff1d54876e31c7ef6d9a4e1a20dda1c980ecae9e8b78. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USBC10100650.
  date published: 2026-07-02T16:51:38Z
audio: Boléro, M. 81
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Les Classiques Du Cinéma
type: MusicAlbum
date published: 2002-08-06
track: Also sprach Zarathustra, Op. 30: Sonnenaufgang
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  by artist: Fritz Reiner
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Also sprach Zarathustra, Op. 30: Sonnenaufgang
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track: Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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  by artist: Bavarian Radio Symphony Orchestra
  by artist: Karl-Heinz Steffens
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    date published: 2002-08-06
  genre: classical
  genre: classical-era
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
  audio: Concerto for Clarinet and Orchestra in A Major, K. 622: II. Adagio
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track: Mandolin Concerto in C Major, RV 425: I. Allegro
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  by artist: London Musici
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  by artist: Nigel Woodhouse
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Mandolin Concerto in C Major, RV 425: I. Allegro
track: Requiem in D Minor, K. 626: III. Dies irae
track: Carmina Burana: Fortuna imperatrix mundi: O Fortuna
track: Adagio for Strings, Op. 11
track: Mélodie hongroise en si mineur, D. 817

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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe720a441591546ce5248542cea09ffd9184b976ed6ba7c4222c536916fcbec14. 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/GBARU9100056.
date published: 2026-06-13T13:32:09Z

Mandolin Concerto in C Major, RV 425: I. Allegro
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additional property: Valence (Positivity)
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Requiem in D Minor, K. 626: III. Dies irae
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duration: PT1M44S
duration ms: 104133
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by artist: Wolfgang Amadeus Mozart
by artist: Sir Colin Davis
by artist: Bavarian Radio Chorus
by artist: Bavarian Radio Symphony Orchestra
in album: Les Classiques Du Cinéma
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Requiem in D Minor, K. 626: III. Dies irae
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Carmina Burana: Fortuna imperatrix mundi: O Fortuna
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duration: PT2M46S
duration ms: 166266
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by artist: Eduardo Mata
by artist: London Symphony Chorus
by artist: London Symphony Orchestra
by artist: St. Paul's Cathedral Choir
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subject of: OpenTimestamps Proof of Existence
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audio: Carmina Burana: Fortuna imperatrix mundi: O Fortuna
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Adagio for Strings, Op. 11
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Mélodie hongroise en si mineur, D. 817
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Klarinetten-Träume
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track: Hungarian Dances, WoO 1: No. 14 in D Minor
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OpenTimestamps Proof of Existence
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5 Stücke im Volkston, Op. 102: II. Langsam
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Mozart: Adagio
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Je n'aime pas le classique, mais adagio j'aime bien !
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track: Peer Gynt Suite No. 1, Op. 46: Ase's Death
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La magie de l'Avent - Musique féérique pour Noël
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date published: 2024-11-08