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Piano Concerto No. 22 in E-Flat Major, K. 482: III. Allegro
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Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: III. Allegro
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Cantate Ich habe genug, BWV 82: Aria Ich habe genug
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Mozart: Piano Concertos Nos. 20 & 23
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track: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": III. Rondeau. Presto
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subject of: OpenTimestamps Proof of Existence
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audio: Piano Concerto No. 9 in E-Flat Major, K. 271 "Jeunehomme": III. Rondeau. Presto
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Piano Concerto No. 17 in G Major, K. 453: III. Allegretto - Presto
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subject of: OpenTimestamps Proof of Existence
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Clarinet Concerto in A Major, K. 622: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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Concerto in C Major for Flute and Harp, K. 299: I. Allegro
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  date published: 2026-07-08T08:56:20Z
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Andante for Flute and Orchestra in C Major, K. 315
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  date published: 2026-07-08T08:56:20Z
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Adagio in E Major, K. 261
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Violin Concerto No. 5 in A Major, K. 219: I. Allegro aperto
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Divertimento in D Major, K. 136: I. Allegro
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Serenade in E-Flat Major, K. 375: V. Allegro
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Piano Sonata No. 16 in C Major, K. 545: I. Allegro
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Requiem in D Minor, K. 626: VIII. Lacrimosa
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Classical Study Focus Music
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Canon and Gigue in D Major, P. 37: I. Canon
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Nocturne in C-Sharp Minor, B. 49
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Orchestral Suite No. 2 in B Minor, BWV 1067: VII. Badinerie
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3 Gymnopédies: No. 3 in A Minor. Lent et grave
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Swan Lake, Op. 20, Act II: No. 10, Scene. Moderato
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La Gioconda, Op. 9, Act III: Dance of the Hours (Excerpt)
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Piano Concerto No. 27 in B-Flat Major, K. 595: III. Allegro
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Deux Chansons, Op. 15: No. 2, Chanson de Matin
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Brandenburg Concerto No. 2 in F Major, BWV 1047: I. Allegro
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Over the Rainbow (From "The Wizard of Oz") [Arr. for Trumpet & Orchestra]
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6 Lieder ohne Worte, Book 6, Op. 67: II. Allegro leggiero
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Waltzes, Op. 34: No. 2, Lento in A Minor
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Harpsichord Suite No. 4 in D Minor, HWV 437: III. Sarabande
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Variations on an Original Theme, Op. 36 "Enigma": Theme. Andante
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Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze. Andante
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audio: Serenade No. 13 in G Major, K. 525 "Eine kleine Nachtmusik": II. Romanze. Andante
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Piano Concerto No. 25 in C Major, K. 503: III. Allegretto
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Symphony No. 3 in D Major, D. 200: II. Allegretto
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7 Fantasias, Op. 116: No. 6, Intermezzo in E Major. Andantino teneramente
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Piano Concerto No. 20 in D Minor, K. 466: II. Romance
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4 Impromptus, Op. 90, D. 899: No. 3 in G-Flat Major
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Sicilienne in E-Flat Major
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Symphony No. 94 in G Major, Hob. I:94 "Surprise": IV. Finale. Allegro di molto
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subject of: OpenTimestamps Proof of Existence
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audio: Symphony No. 94 in G Major, Hob. I:94 "Surprise": IV. Finale. Allegro di molto
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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subject of: OpenTimestamps Proof of Existence
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Carmen Suite No. 1: III. Intermezzo
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subject of: OpenTimestamps Proof of Existence
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Brandenburg Concerto No. 3 in G Major, BWV 1048: I. (No Tempo Marking)
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  date published: 2026-07-02T03:55:08Z
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Clarinet Concerto in A Major, K. 622: II. Adagio
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Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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audio: Peer Gynt Suite No. 1, Op. 46: I. Morning Mood
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Adagio for Strings
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The Planets, Op. 32: I. Mars, the Bringer of War. Allegro
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Keyboard Concerto in F Minor, BWV 1056: I. Allegro
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String Quintet No. 3 in C Major, K. 515: II. Menuetto. Allegretto
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Concerto for 2 Keyboards, BWV 1060: II. Adagio
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String Quintet No. 3 in C Major, K. 515: IV. Allegro
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Cello Suite No. 1 in G Major, BWV 1007: I. Prelude
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Harpsichord Concerto No. 5 in F Minor, BWV 1056: I. Arioso (Arr. Cortot)
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Piano Sonata No. 12 in F Major, K. 332: II. Adagio
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Frühlingstimmen, Op. 410
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Keyboard Concerto in D Minor, BWV 974: II. Adagio
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Oboe Concerto in C Minor, TWV 51:c1: II. Allegro (Arr. for Trumpet)
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Concerto for Flute and Harp, K. 299: II. Andantino
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Violin Concerto No. 1 in A Minor, BWV 1041: I. -
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Consolations, S. 172: III. Lento placido
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Theme from "Schindler's List"
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:38:34Z
audio: Theme from "Schindler's List"
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Prélude, Fugue et Variation, Op. 18: I. Prélude. Andantino
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by artist: Mariam Batsashvili
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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: Prélude, Fugue et Variation, Op. 18: I. Prélude. Andantino
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English Suite No. 1 in A Major, BWV 806: II. Allemande
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by artist: Piotr Anderszewski
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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: English Suite No. 1 in A Major, BWV 806: II. Allemande
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Lieder aus Franz Schubert's "Schwanengesang", S. 560: No. 7, Ständchen
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by artist: Mariam Batsashvili
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Lieder aus Franz Schubert's "Schwanengesang", S. 560: No. 7, Ständchen
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Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Sonata No. 14 in C-Sharp Minor, Op. 27 No. 2 "Moonlight": I. Adagio sostenuto
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arkata
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: arkata
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Bach for Studying
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track: Goldberg Variations, BWV 988: Aria
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    date published: 2026-07-08T03:20:19Z
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track: Goldberg Variations, BWV 988: No. 16, Variatio 15. Canone alla Quinta a 1 clav.
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Orchestral Suite No. 3 in D Major, BWV 1068: II. Air
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subject of: OpenTimestamps Proof of Existence
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Orchestral Suite No. 2 in B Minor, BWV 1067: III. Sarabande
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Orchestral Suite No. 4 in D Major, BWV 1069: V. - VI. Menuets I & II
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Violin Concerto in G Minor, BWV 1056: II. Largo
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Flute sonata No. 2 in E-Flat Major, BWV 1031: II. Sicilienne
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Concerto for 2 Harpsichords in C Minor, BWV 1062: II. Andante
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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: Concerto for 2 Harpsichords in C Minor, BWV 1062: II. Andante
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English Suite No. 1 in A Major, BWV 806: II. Allemande
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
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Brandenburg Concerto No. 4 in G Major, BWV 1049: II. Andante
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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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Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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Keyboard Concerto in D Minor, BWV 974: II Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Keyboard Concerto in D Minor, BWV 974: II Adagio
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Partita No. 1 in B-Flat Major, BWV 825: I. Praeludium
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Partita No. 1 in B-Flat Major, BWV 825: I. Praeludium
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Concerto for 2 Violins in D Minor, BWV 1043: II. Largo, ma non tanto
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subject of: OpenTimestamps Proof of Existence
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audio: Concerto for 2 Violins in D Minor, BWV 1043: II. Largo, ma non tanto
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Herz und Mund und Tat und Leben, BWV 147: X. Jesu, Joy of Man's Desiring
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subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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    date published: 2026-07-07T18:50:38Z
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track: Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio
track: Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto allegro
track: Mozart / Arr. Grieg for Two Pianos: Piano Sonata No. 16 in C Major, K. 545 "Semplice": I. Allegro (Live)
track: Mozart: Piano Sonata No. 12 in F Major, K. 332: II. Adagio
track: Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
track: Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
track: Mozart: Le nozze di Figaro, K. 492, Act 1: "Non più andrai, farfallone amoroso" (Figaro)
track: Mozart: Le nozze di Figaro, K. 492, Act 2: Cavatina. "Porgi, amor" (La Contessa)
track: Mozart: Die Zauberflöte, K. 620, Act 2: "Pa-pa-pa-pa-pagena!" (Papageno, Papagena)
track: Mozart: Piano Sonata No. 11 in A Major, Op. 6 No. 2, K. 331 "Alla turca": III. Allegretto. Turkish March

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:22:41Z

Mozart: Symphony No. 40 in G Minor, K. 550: I. Molto allegro
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Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Mozart: Clarinet Concerto in A Major, K. 622: II. Adagio
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Mozart: Symphony No. 41 in C Major, K. 551 "Jupiter": IV. Molto allegro
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  value: https://explorer.copyrightchains.com/tx/0x4067b164f366eecd04d6d4f450e5c73bc7f83cc451e81f90c2aa01da6fa4a080
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC0502402
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4067b164f366eecd04d6d4f450e5c73bc7f83cc451e81f90c2aa01da6fa4a080. 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/GBAYC0502402.
  date published: 2026-07-08T03:53:27Z
audio: Mozart / Arr. Grieg for Two Pianos: Piano Sonata No. 16 in C Major, K. 545 "Semplice": I. Allegro (Live)
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  additional property: Tempo (BPM)
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    value: 131.486
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.361
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.924
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.303
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.471
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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Mozart: Piano Sonata No. 12 in F Major, K. 332: II. Adagio
type: MusicRecording
duration: PT4M51S
duration ms: 291881
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Elisabeth Leonskaja
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 2
genre: classical
genre: classical-era
isrc code: GBAYC2101966
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T00:05:12+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f83cad5cd23a7bf0894c0d4496a27713653fe6bc4ecbf324139314f32446ba2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC2101966
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f83cad5cd23a7bf0894c0d4496a27713653fe6bc4ecbf324139314f32446ba2. 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/GBAYC2101966.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Piano Sonata No. 12 in F Major, K. 332: II. Adagio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.336
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.013
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.915
  additional property: Liveness
    type: PropertyValue
    value: 0.087
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.204
  additional property: Loudness (dB)
    type: PropertyValue
    value: -34.134
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
type: MusicRecording
duration: PT7M35S
duration ms: 455706
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: English Chamber Orchestra
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 2
genre: classical
genre: classical-era
isrc code: GBAYC8804519
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:03:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e76d5f528525673869b278963566ad0941664308b5b9b2e3f61aad4e7b96ae9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8804519
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e76d5f528525673869b278963566ad0941664308b5b9b2e3f61aad4e7b96ae9. 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/GBAYC8804519.
  date published: 2026-07-08T08:56:20Z
audio: Mozart: Piano Concerto No. 23 in A Major, K. 488: II. Andante
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.212
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.2
  additional property: Energy
    type: PropertyValue
    value: 0.019
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.949
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.62
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
type: MusicRecording
duration: PT3M36S
duration ms: 216000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Barry Tuckwell
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 2
genre: classical
genre: classical-era
isrc code: GBAYC8805740
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-29T07:08:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe080da2c15ca6e456c3c4cc3ee9749f7181266152036f9cf28aea8028d7ac1e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8805740
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe080da2c15ca6e456c3c4cc3ee9749f7181266152036f9cf28aea8028d7ac1e7. 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/GBAYC8805740.
  date published: 2026-07-08T03:22:41Z
audio: Mozart: Horn Concerto No. 4 in E-Flat Major, K. 495: III. Rondo. Allegro vivace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.256
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.409
  additional property: Energy
    type: PropertyValue
    value: 0.214
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.931
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.308
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.506
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Le nozze di Figaro, K. 492, Act 1: "Non più andrai, farfallone amoroso" (Figaro)
type: MusicRecording
duration: PT3M40S
duration ms: 220186
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Riccardo Muti
by artist: Sir Thomas Allen
by artist: Wiener Philharmoniker
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 1
genre: classical
genre: classical-era
isrc code: GBAYC8600852
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:45:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7cf516beeb6caf8ddf7f2858446f2c83ae017a83bbccde26d166a4c947b080d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600852
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf516beeb6caf8ddf7f2858446f2c83ae017a83bbccde26d166a4c947b080d8. 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/GBAYC8600852.
  date published: 2026-07-08T03:53:27Z
audio: Mozart: Le nozze di Figaro, K. 492, Act 1: "Non più andrai, farfallone amoroso" (Figaro)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.583
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.264
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.139
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.417
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.031
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Le nozze di Figaro, K. 492, Act 2: Cavatina. "Porgi, amor" (La Contessa)
type: MusicRecording
duration: PT3M47S
duration ms: 227506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Riccardo Muti
by artist: Margaret Price
by artist: Wiener Philharmoniker
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 1
genre: classical
genre: classical-era
isrc code: GBAYC8600645
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T19:31:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1697a4f9cb69bed24162b18ea83214fd63ddc21f74414ea232594664c69f0e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8600645
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1697a4f9cb69bed24162b18ea83214fd63ddc21f74414ea232594664c69f0e5. 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/GBAYC8600645.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Le nozze di Figaro, K. 492, Act 2: Cavatina. "Porgi, amor" (La Contessa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.826
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.134
  additional property: Energy
    type: PropertyValue
    value: 0.06
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.947
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Mozart: Die Zauberflöte, K. 620, Act 2: "Pa-pa-pa-pa-pagena!" (Papageno, Papagena)
type: MusicRecording
duration: PT2M37S
duration ms: 157893
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bernard Haitink
by artist: Brigitte Lindner
by artist: Wolfgang Brendel
by artist: Bavarian Radio Symphony Orchestra
in album: The Best of Mozart
  type: MusicAlbum
  date published: 2024-06-23
popularity: 1
genre: classical
genre: classical-era
isrc code: GBAYC8100333
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:15:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd7d3adfc67698ea5c409cc3316da2a32115d5dc608b0f8007721864f4ff03d62
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAYC8100333
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d3adfc67698ea5c409cc3316da2a32115d5dc608b0f8007721864f4ff03d62. 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/GBAYC8100333.
  date published: 2026-07-08T03:20:19Z
audio: Mozart: Die Zauberflöte, K. 620, Act 2: "Pa-pa-pa-pa-pagena!" (Papageno, Papagena)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 122.593
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.549
  additional property: Energy
    type: PropertyValue
    value: 0.249
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.97
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.24
  additional property: Liveness
    type: PropertyValue
    value: 0.138
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.499
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.569
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100 Best Relaxing Piano
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track: Concerto pour cor No. 4 En mi bémol majeur, K. 495: I. Allegro maestoso
track: Concerto pour cor No. 4 En mi bémol majeur, K. 495: III. Rondo : Allegro vivace

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Concerto pour cor No. 2 en mi bémol majeur, K. 417: III. Rondo : Allegro
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Concerto pour cor No. 3 en mi bémol majeur, K. 447: I. Allegro
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Concerto pour cor No. 4 En mi bémol majeur, K. 495: I. Allegro maestoso
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  date published: 2026-07-02T03:55:08Z
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Concerto pour cor No. 4 En mi bémol majeur, K. 495: III. Rondo : Allegro vivace
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
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    date published: 2026-07-06T06:56:49Z
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track: Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: I. Allegro
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    date published: 2026-07-02T03:55:08Z
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track: Concerto en si mineur pour 4 violons, violoncelle, cordes et basse continue, Op. 3 No. 10, RV 580: III. Allegro
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track: Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: II. Grave
track: Sinfonia de l’opéra La verità in cimento, RV 739: I. Allegro
track: Sinfonia de l’opéra La verità in cimento, RV 739: II. Andante
track: Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: II. Largo
track: Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: III. Allegro

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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

Concerto en mi mineur pour 4 violons, cordes et basse continue, Op. 3 No. 4, RV 550: III. Adagio
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Concerto en fa majeur pour violon, 2 hautbois, basson, 2 cors, cordes et basse continue, RV 574: II. Grave
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Sinfonia de l’opéra La verità in cimento, RV 739: I. Allegro
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Sinfonia de l’opéra La verità in cimento, RV 739: II. Andante
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Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: II. Largo
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Concerto en do majeur pour 2 trompettes, cordes et basse continue, RV 537: III. Allegro
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La cigale et les violons
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ARC
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Fratres
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Haydn: Cello Concertos - Hétu: Rondo
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Mozart, Haydn: Piano Concertos
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track: Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: II. Un poco adagio
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Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: I. Vivace
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Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: II. Un poco adagio
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Haydn: Keyboard Concerto in D Major, Hob. XVIII:11: III. Rondo all'ungarese
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T03:55:08Z

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subject of: OpenTimestamps Proof of Existence
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OpenTimestamps Proof of Existence
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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: Suite pour orchestre en ré majeur, BWV 1068: Air

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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:20:19Z

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Suite pour orchestre en ré majeur, BWV 1068: Air
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by artist: Les Violons du Roy
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Bartók, B.: Divertimento, Sz. 113, Music for Strings, Percussion and Celesta, Sz. 106, Romanian Folk Dances, Sz. 56
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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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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  subject of: OpenTimestamps Proof of Existence
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track: Water Music, Suite No. 1 en fa majeur, HWV 348: X. [sans indication de tempo]
track: Water Music, Suite No. 3 en sol majeur, HWV 350: I. [sans indication de tempo]
track: Water Music, Suite No. 3 en sol majeur, HWV 350: II. Rigaudons I/II
track: Water Music, Suite No. 3 en sol majeur, HWV 350: III. Menuets I/II
track: Water Music, Suite No. 3 en sol majeur, HWV 350: IV. [sans indication de tempo] I/II
track: Solomon, HWV 67, Sinfonia: The Arrival of the Queen Sheba

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

Water Music, Suite No. 1 en fa majeur, HWV 348: IX. Bourrée HornpipeBourrée
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756910
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1456622359b9a2b0f140e72e264ccf95f9cea0c7179e5d357052856da4a0b7c8. 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/CAJ720756910.
  date published: 2026-07-08T03:20:19Z
audio: Water Music, Suite No. 1 en fa majeur, HWV 348: X. [sans indication de tempo]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.065
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.139
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.948
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.832
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.322
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.249
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Water Music, Suite No. 3 en sol majeur, HWV 350: I. [sans indication de tempo]
type: MusicRecording
duration: PT2M59S
duration ms: 179786
explicit: false
by artist: George Frideric Handel
by artist: Les Violons du Roy
by artist: Bernard Labadie
in album: Handel: Water Music
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CAJ720756911
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T10:36:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4021b87a874d051bd799446843f8851f9e0b12cdc810450c643ec4377f2b7b59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957073
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957073
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756911
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T18:39:05Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4021b87a874d051bd799446843f8851f9e0b12cdc810450c643ec4377f2b7b59. 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/CAJ720756911.
  date published: 2026-07-07T18:39:05Z
audio: Water Music, Suite No. 3 en sol majeur, HWV 350: I. [sans indication de tempo]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.318
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.148
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.855
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.323
  additional property: Liveness
    type: PropertyValue
    value: 0.208
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.112
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.291
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Water Music, Suite No. 3 en sol majeur, HWV 350: II. Rigaudons I/II
type: MusicRecording
duration: PT2M38S
duration ms: 158813
explicit: false
by artist: George Frideric Handel
by artist: Bernard Labadie
by artist: Les Violons du Roy
in album: Handel: Water Music
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CAJ720756912
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T23:42:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1019a80fdef90b0b396df1a1867de74d4cc79b726f145ae461fa4c4f51708f4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956351
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956351
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756912
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T11:38:34Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1019a80fdef90b0b396df1a1867de74d4cc79b726f145ae461fa4c4f51708f4. 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/CAJ720756912.
  date published: 2026-07-02T11:38:34Z
audio: Water Music, Suite No. 3 en sol majeur, HWV 350: II. Rigaudons I/II
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.404
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.653
  additional property: Energy
    type: PropertyValue
    value: 0.33
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.849
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.946
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.856
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.654
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Water Music, Suite No. 3 en sol majeur, HWV 350: III. Menuets I/II
type: MusicRecording
duration: PT3M51S
duration ms: 231960
explicit: false
by artist: George Frideric Handel
by artist: Les Violons du Roy
by artist: Bernard Labadie
in album: Handel: Water Music
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CAJ720756913
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:10:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5fef0ba0e8288b66fc1c5917158d916a77019356931085e2906a4b02ce6b561
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756913
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fef0ba0e8288b66fc1c5917158d916a77019356931085e2906a4b02ce6b561. 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/CAJ720756913.
  date published: 2026-07-08T08:56:20Z
audio: Water Music, Suite No. 3 en sol majeur, HWV 350: III. Menuets I/II
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 109.896
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.263
  additional property: Energy
    type: PropertyValue
    value: 0.058
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.925
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.605
  additional property: Liveness
    type: PropertyValue
    value: 0.258
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.328
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.534
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Water Music, Suite No. 3 en sol majeur, HWV 350: IV. [sans indication de tempo] I/II
type: MusicRecording
duration: PT1M41S
duration ms: 101466
explicit: false
by artist: George Frideric Handel
by artist: Les Violons du Roy
by artist: Bernard Labadie
in album: Handel: Water Music
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CAJ720756914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:02:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c2f7664b912a3760ce414adabbf275da60f87b7573bb319f9e7233e9babda67
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f7664b912a3760ce414adabbf275da60f87b7573bb319f9e7233e9babda67. 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/CAJ720756914.
  date published: 2026-07-08T03:39:04Z
audio: Water Music, Suite No. 3 en sol majeur, HWV 350: IV. [sans indication de tempo] I/II
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.922
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.65
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.09
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.944
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.67
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.446
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Solomon, HWV 67, Sinfonia: The Arrival of the Queen Sheba
type: MusicRecording
duration: PT2M56S
duration ms: 176533
explicit: false
by artist: George Frideric Handel
by artist: Les Violons du Roy
by artist: Bernard Labadie
in album: Handel: Water Music
  type: MusicAlbum
  date published: 2007-11-01
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: CAJ720756922
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T09:25:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea77959ac5fa63c25747f4a6ad99c2d14442906179822ed264fbff91f721517d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720756922
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea77959ac5fa63c25747f4a6ad99c2d14442906179822ed264fbff91f721517d. 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/CAJ720756922.
  date published: 2026-07-02T03:55:08Z
audio: Solomon, HWV 67, Sinfonia: The Arrival of the Queen Sheba
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.366
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.593
  additional property: Energy
    type: PropertyValue
    value: 0.299
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.878
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.886
  additional property: Liveness
    type: PropertyValue
    value: 0.309
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.877
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.552
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Piazzolla: Las Cuatro Estaciones porteñas / Milonga Del Ángel / La Muerta Del Ángel
type: MusicAlbum
date published: 2006-10-05
track: Las cuatro estaciones porteñas: III. Invierno porteno (Arr. by Leonid Desyatnikov)
  type: MusicRecording
  duration: PT7M58S
  duration ms: 478906
  explicit: false
  by artist: Astor Piazzolla
  by artist: Pascale Giguère
  by artist: Les Violons du Roy
  by artist: Jean-Marie Zeitouni
  in album: Piazzolla: Las Cuatro Estaciones porteñas / Milonga Del Ángel / La Muerta Del Ángel
    type: MusicAlbum
    date published: 2006-10-05
  isrc code: CAJ720639903
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:22:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf762efc2bb36c15402fc15d50b0ed620da0f739c005d0c9f4078c109da43a2eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720639903
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf762efc2bb36c15402fc15d50b0ed620da0f739c005d0c9f4078c109da43a2eb. 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/CAJ720639903.
    date published: 2026-07-08T03:20:19Z
  audio: Las cuatro estaciones porteñas: III. Invierno porteno (Arr. by Leonid Desyatnikov)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 151.867
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.265
    additional property: Energy
      type: PropertyValue
      value: 0.067
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.864
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.227
    additional property: Liveness
      type: PropertyValue
      value: 0.072
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.042
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.595
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Las cuatro estaciones porteñas: IV. Primavera portena (Arr. by Leonid Desyatnikov)
  type: MusicRecording
  duration: PT6M33S
  duration ms: 393440
  explicit: false
  by artist: Astor Piazzolla
  by artist: Pascale Giguère
  by artist: Jean-Marie Zeitouni
  by artist: Les Violons du Roy
  in album: Piazzolla: Las Cuatro Estaciones porteñas / Milonga Del Ángel / La Muerta Del Ángel
    type: MusicAlbum
    date published: 2006-10-05
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:12:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x24bcb5804219c42afc6257f2a51f337dd4762e40992697f0d6b923626442b517
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  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720639904
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T08:56:20Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bcb5804219c42afc6257f2a51f337dd4762e40992697f0d6b923626442b517. 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/CAJ720639904.
    date published: 2026-07-08T08:56:20Z
  audio: Las cuatro estaciones porteñas: IV. Primavera portena (Arr. by Leonid Desyatnikov)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.902
    additional property: Key Name
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    additional property: Mode Name
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track: Deux tangos pour orchestre à cordes: Fuga y Misterio (Arr. by José Bragato)
  type: MusicRecording
  duration: PT4M7S
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  explicit: false
  by artist: Astor Piazzolla
  by artist: Jean-Marie Zeitouni
  by artist: Les Violons du Roy
  in album: Piazzolla: Las Cuatro Estaciones porteñas / Milonga Del Ángel / La Muerta Del Ángel
    type: MusicAlbum
    date published: 2006-10-05
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Deux tangos pour orchestre à cordes: Fuga y Misterio (Arr. by José Bragato)
track: Milonga del Ángel (Arr. by José Bragato)

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720639907

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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 0xdd465d5a9d94e7ba9603fbc8856b9b4d6018d6e648734b9f2c554cd5db57b30e. 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/CAJ720639907.
date published: 2026-07-08T08:56:20Z

Deux tangos pour orchestre à cordes: Fuga y Misterio (Arr. by José Bragato)
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
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  value: 0.457
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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Milonga del Ángel (Arr. by José Bragato)
type: MusicRecording
duration: PT6M57S
duration ms: 417666
explicit: false
by artist: Astor Piazzolla
by artist: Les Violons du Roy
by artist: Jean-Marie Zeitouni
in album: Piazzolla: Las Cuatro Estaciones porteñas / Milonga Del Ángel / La Muerta Del Ángel
  type: MusicAlbum
  date published: 2006-10-05
isrc code: CAJ720639909
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T05:14:11+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xe10ba238f5e2f5b54e2c51f1764bdabbe24095043b4abe3bdb42c5bd050a7cb5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ720639909
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10ba238f5e2f5b54e2c51f1764bdabbe24095043b4abe3bdb42c5bd050a7cb5. 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/CAJ720639909.
  date published: 2026-07-08T03:22:41Z
audio: Milonga del Ángel (Arr. by José Bragato)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.706
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.135
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.787
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.325
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Mozart: Requiem in D Minor, K. 626 (Completed by R. Levin) [Live]
type: MusicAlbum
date published: 2002-01-01
track: Requiem en ré mineur, K. 626, Introitus: Requiem
  type: MusicRecording
  duration: PT5M21S
  duration ms: 321426
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Bernard Labadie
  by artist: Karina Gauvin
  by artist: Les Violons du Roy
  by artist: La Chapelle de Québec
  in album: Mozart: Requiem in D Minor, K. 626 (Completed by R. Levin) [Live]
    type: MusicAlbum
    date published: 2002-01-01
  genre: classical
  genre: classical-era
  isrc code: CAJ721572201
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T00:54:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x343ee3e677013d84b1fde8ec2c4e133c5701d08bd1264d5d892cc70eae95a3f9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721572201
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343ee3e677013d84b1fde8ec2c4e133c5701d08bd1264d5d892cc70eae95a3f9. 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/CAJ721572201.
    date published: 2026-07-08T03:20:19Z
  audio: Requiem en ré mineur, K. 626, Introitus: Requiem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.35
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.076
    additional property: Energy
      type: PropertyValue
      value: 0.094
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.95
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.524
    additional property: Liveness
      type: PropertyValue
      value: 0.096
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.059
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.057
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Requiem en ré mineur, K. 626, Sequenz: Lacrimosa
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173733
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: La Chapelle de Québec
  by artist: Les Violons du Roy
  by artist: Bernard Labadie
  in album: Mozart: Requiem in D Minor, K. 626 (Completed by R. Levin) [Live]
    type: MusicAlbum
    date published: 2002-01-01
  genre: classical
  genre: classical-era
  isrc code: CAJ721572208
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T19:12:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x872bbdaedda1aa3f5b1530911b4c3068c84208703d6f5958abd39de5075f7467
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957120
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957120
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721572208
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:22:41Z
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872bbdaedda1aa3f5b1530911b4c3068c84208703d6f5958abd39de5075f7467. 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/CAJ721572208.
    date published: 2026-07-08T03:22:41Z
  audio: Requiem en ré mineur, K. 626, Sequenz: Lacrimosa
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.176
    additional property: Energy
      type: PropertyValue
      value: 0.051
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.089
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.036
    additional property: Loudness (dB)
      type: PropertyValue
      value: -25.277
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Requiem en ré mineur, K. 626, Sequenz: Amen
  type: MusicRecording
  duration: PT1M39S
  duration ms: 99533
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Bernard Labadie
  by artist: Les Violons du Roy
  by artist: La Chapelle de Québec
  in album: Mozart: Requiem in D Minor, K. 626 (Completed by R. Levin) [Live]
    type: MusicAlbum
    date published: 2002-01-01
  genre: classical
  genre: classical-era
  isrc code: CAJ721572209
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Requiem en ré mineur, K. 626, Sequenz: Amen
track: Requiem en ré mineur, K. 626, Offertorium: Hostias
track: Requiem en ré mineur, K. 626, Agnus dei: Agnus Dei
track: Requiem en ré mineur, K. 626, Communio: Cum sanctis tuis

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-06T23:23:56+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xfabc612f9b53606d162c9b8a7f613e765418addd13f2254b745cebd1e311cda9

OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721572209

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0xfabc612f9b53606d162c9b8a7f613e765418addd13f2254b745cebd1e311cda9. 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/CAJ721572209.
date published: 2026-07-08T03:53:27Z

Requiem en ré mineur, K. 626, Sequenz: Amen
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 168.273
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.132
additional property: Energy
  type: PropertyValue
  value: 0.266
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.946
additional property: Instrumentalness
  type: PropertyValue
  value: 0.226
additional property: Liveness
  type: PropertyValue
  value: 0.149
additional property: Valence (Positivity)
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  value: 0.42
additional property: Loudness (dB)
  type: PropertyValue
  value: -20.681
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Requiem en ré mineur, K. 626, Offertorium: Hostias
type: MusicRecording
duration: PT4M8S
duration ms: 248106
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Les Violons du Roy
by artist: Bernard Labadie
by artist: La Chapelle de Québec
in album: Mozart: Requiem in D Minor, K. 626 (Completed by R. Levin) [Live]
  type: MusicAlbum
  date published: 2002-01-01
genre: classical
genre: classical-era
isrc code: CAJ721572211
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:06:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x506ce7ec7af0032109dfa1eba431af1b5a4c244062881bab9db3a75425eefcd0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAJ721572211
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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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Requiem en ré mineur, K. 626, Agnus dei: Agnus Dei
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  date published: 2026-07-08T03:22:41Z
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Requiem en ré mineur, K. 626, Communio: Cum sanctis tuis
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  date published: 2026-07-08T03:22:41Z
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J.S. Bach: Goldberg Variations, BWV 988 (Arr. for Strings & Continuo)
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    date published: 2026-07-08T03:22:41Z
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    date published: 2026-07-08T03:20:19Z
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