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album: Scriabin: Symphony No. 2 in C Minor, Op. 29 & Symphony No. 4, Op. 54 "Le poème de l'extase"
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  date published: 2021-01-22
album: Günter Wand "Sacred Works"
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album: Rachmaninoff: Symphony No. 2 in E Minor, Op. 27 & Vocalise
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album: Bruckner: Symphony No. 9 in D Minor, WAB 109 (Original Version)
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album: Bruckner: Symphony No. 3 (First Version, 1873)
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album: Bruckner: Symphony No. 7
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album: Richard Strauss: Don Quixote. Till Eulenspiegel
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album: Tchaikovksy: Orchestral Works
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  track: The Queen of Spades, Op. 68, TH 10: Overture
album: Philippe Manoury: Lab.Oratorium
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album: Rott: Complete Orchestral Works, Vol. 2
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album: Schumann: Symphonies Nos. 1 & 4 (Live)
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album: Rachmaninoff: The Bells, Op. 35 - Taneyev: John of Damasacus, Op. 1
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album: Beethoven: Overtures, Symphonies, Missa solemnis
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album: Symphonies of Life, Vol. 26 - The Symphonies Nos 10 Vol. 1
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album: Symphonies of Life, Vol. 25 - The Symphonies Nos 9
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album: Symphonies of Life, Vol. 27 - The Symphonies Nos 10 Vol. 2
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album: Mussorgsky, Rimsky-Korsakov & Lyadov: Works
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album: Mahler: Symphony No. 3 (Live)
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album: Dvořák: Symphony No. 8 in G Major, Op. 88 - Liszt: Die Ideale, S. 106
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album: Mahler: Symphony No. 5 (Live)
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album: Mussorgsky: St. John's Night on Bald Mountain & Songs and Dances of Death - Prokofiev: Alexander Nevsky
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album: Henze: Orchestral Works
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album: Tchaikovsky: Complete Symphonies
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album: Tchaikovsky: Iolanta, Op. 69, TH 11
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album: Schoenberg: Gurrelieder
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album: Rachmaninov: Symphony No. 1, Op. 13 & Der Fels, Op. 7
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album: Chopin: Piano Concerto No.2; Ballade No.4; Berceuse; Polonaise Héroïque
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album: Mahler: Symphony No. 6
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album: Montalbetti: Orchestral Pictures
album: Bruckner: Symphonies Nos. 1 & 2
album: Mahler – Songs of Fate
album: Feldman: The Viola in My Life

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Don Quixote, Op. 35, TrV 184: Introduzione. Mässiges Zeitmass
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Don Quixote, Op. 35, TrV 184: Thema. Mäßig (Don Quixote, Knight of the Doleful Countenance) – Maggiore (Sancho Panza)
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Don Quixote, Op. 35, TrV 184: Finale. Sehr ruhig (Death of Don Quixote)
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Don Quixote, Op. 35, TrV 184: Variation I. Gemächlich (The adventure with the windmills)
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Don Quixote, Op. 35, TrV 184: Variation III. Mäßiges Zeitmaß (Dialogue between knight and squire)
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The Queen of Spades, Op. 68, TH 10: Overture
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: Decoration of the Christmas tree
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The Nutcracker, Op. 71, TH 14, Act II: Act II: Scene
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: c. Tea - Chinese Dance
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: e. Dance of the Toy Flutes
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: e. Dance of the Toy Flutes
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 2: Dance Adult
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by artist: Dmitri Kitayenko
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 2: Dance Adult
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 2: Waltz of the snowflakes
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 2: Waltz of the snowflakes
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Pas de deux: Intrada
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by artist: Pyotr Ilyich Tchaikovsky
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by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Pas de deux: Intrada
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Variation 1: Tarantella
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by artist: Pyotr Ilyich Tchaikovsky
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by artist: Dmitri Kitayenko
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Variation 1: Tarantella
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Variation 2: Dance of the Sugar-Plum Fairy
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:20:19Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Variation 2: Dance of the Sugar-Plum Fairy
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The Nutcracker, Op. 71, TH 14: Overture
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  date published: 2026-07-22T15:01:36Z
audio: The Nutcracker, Op. 71, TH 14: Overture
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The Nutcracker, Op. 71, TH 14, Act II: Act I Tableau 2: In Zauberschloss Sugar Castle
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
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  date published: 2026-07-30T14:53:07Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act I Tableau 2: In Zauberschloss Sugar Castle
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: a. Chocolate - Spanish Dance
type: MusicRecording
duration: PT1M20S
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by artist: Pyotr Ilyich Tchaikovsky
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T18:23:33Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: a. Chocolate - Spanish Dance
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: Children's galop and entry of the parents
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explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-29T19:35:34Z
audio: The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: Children's galop and entry of the parents
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additional property: OTSVerifyInstructions
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: b. Coffee - Arabian Dance
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duration: PT3M11S
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explicit: false
by artist: Pyotr Ilyich Tchaikovsky
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  date published: 2026-07-30T19:26:00Z
audio: The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: b. Coffee - Arabian Dance
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: Arrival of Drosselmayer
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  date published: 2026-07-29T23:42:34Z
audio: The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: Arrival of Drosselmayer
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: The Nutcracker and Grandfather dance
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duration: PT7M40S
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by artist: Pyotr Ilyich Tchaikovsky
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by artist: Dmitri Kitayenko
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T06:39:12Z
audio: The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: The Nutcracker and Grandfather dance
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: d. Trepak - Russian Dance
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by artist: Pyotr Ilyich Tchaikovsky
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subject of: OpenTimestamps Proof of Existence
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 1: The Doll - The Fool - The Mohr
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Divertissement: f. Mother Gigogne and the clowns
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The Nutcracker, Op. 71, TH 14, Act I: Act I Tableau 2: Masha Goes to Bed - Battle of Mice and Gingerbread Soldiers - Intervention from the Nutcracker and Rescue by Masha - Transformation of t
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Blumenwalzer
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Coda
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The Nutcracker, Op. 71, TH 14, Act II: Act II Tableau 3: Final waltz and apotheosis
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Divertimento from Le baiser de la fée: I. Sinfonia: Andante - Vivace agitato
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duration: PT6M24S
duration ms: 384746
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by artist: Igor Stravinsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T20:22:46Z
audio: Divertimento from Le baiser de la fée: I. Sinfonia: Andante - Vivace agitato
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Divertimento from Le baiser de la fée: II. Danses Suisses: Tempo giusto - Valse - Poco più lento
type: MusicRecording
duration: PT8M7S
duration ms: 487506
explicit: false
by artist: Igor Stravinsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
  type: MusicAlbum
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Divertimento from Le baiser de la fée: II. Danses Suisses: Tempo giusto - Valse - Poco più lento
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Divertimento from Le baiser de la fée: III. Scherzo: Moderato - Allegretto grazioso
type: MusicRecording
duration: PT4M3S
duration ms: 243320
explicit: false
by artist: Igor Stravinsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
  type: MusicAlbum
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T18:48:12Z
audio: Divertimento from Le baiser de la fée: III. Scherzo: Moderato - Allegretto grazioso
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Divertimento from Le baiser de la fée: IV. Pas de deux: Adagio - Allegretto grazioso - Presto
type: MusicRecording
duration: PT8M5S
duration ms: 485080
explicit: false
by artist: Igor Stravinsky
by artist: Gürzenich Orchester Köln
by artist: Dmitri Kitayenko
in album: Tchaikovsky: The Nutcracker, Op. 71 - Stravinsky: Divertimento from Le baiser de la fée
  type: MusicAlbum
  date published: 2016-11-18
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:59:18Z
audio: Divertimento from Le baiser de la fée: IV. Pas de deux: Adagio - Allegretto grazioso - Presto
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Piano Concerto No. 2 in F Minor, Op. 21: 2. Larghetto
type: MusicRecording
duration: PT8M15S
duration ms: 495849
explicit: false
by artist: Frédéric Chopin
by artist: Nelson Freire
by artist: Gürzenich Orchester Köln
by artist: Lionel Bringuier
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genre: classical
genre: early-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Piano Concerto No. 2 in F Minor, Op. 21: 2. Larghetto
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Piano Concerto No. 2 in F Minor, Op. 21: 1. Maestoso
type: MusicRecording
duration: PT13M22S
duration ms: 802769
explicit: false
by artist: Frédéric Chopin
by artist: Nelson Freire
by artist: Gürzenich Orchester Köln
by artist: Lionel Bringuier
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  type: MusicAlbum
  date published: 2015-01-01
genre: classical
genre: early-romantic-era
genre: polish-classical
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
audio: Piano Concerto No. 2 in F Minor, Op. 21: 1. Maestoso
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Piano Concerto No. 2 in F Minor, Op. 21: 3. Allegro vivace
type: MusicRecording
duration: PT8M8S
duration ms: 488335
explicit: false
by artist: Frédéric Chopin
by artist: Nelson Freire
by artist: Gürzenich Orchester Köln
by artist: Lionel Bringuier
in album: Chopin: Piano Concerto No.2; Ballade No.4; Berceuse; Polonaise Héroïque
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  date published: 2015-01-01
genre: classical
genre: early-romantic-era
genre: polish-classical
subject of: OpenTimestamps Proof of Existence
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audio: Piano Concerto No. 2 in F Minor, Op. 21: 3. Allegro vivace
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Ouverture philharmonique, pour grand orchestre
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audio: Ouverture philharmonique, pour grand orchestre
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Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): I. Allegro
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Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): II. Adagio
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Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): III. Scherzo. Schnell
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audio: Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): III. Scherzo. Schnell
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Des Knaben Wunderhorn: Wer hat dies Liedlein erdacht?
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Des Knaben Wunderhorn: Das irdische Leben
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22451e3c15bfb93e9bcc8434b394dce7b55e45c13cd14c7291b310909eccbcdc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELN22501003.
  date published: 2026-07-02T03:30:09Z
audio: Des Knaben Wunderhorn: Das irdische Leben
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  additional property: Musical Key
    type: PropertyValue
    value: 9
  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: 0.379
  additional property: Energy
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    value: 0.092
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.015
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.137
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.847
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Des Knaben Wunderhorn: Des Antonius von Padua Fischpredigt
type: MusicRecording
duration: PT4M12S
duration ms: 252613
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501005
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:18:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2818511d921fb080bcdb4912dece869257b0028a79eb8e12778c60b801af688
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/DELN22501005
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957124
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:53:27+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2818511d921fb080bcdb4912dece869257b0028a79eb8e12778c60b801af688. 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/DELN22501005.
  date published: 2026-07-08T03:53:27Z
audio: Des Knaben Wunderhorn: Des Antonius von Padua Fischpredigt
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 147.844
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.394
  additional property: Energy
    type: PropertyValue
    value: 0.084
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.309
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.084
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Des Knaben Wunderhorn: Lob des hohen Verstandes
type: MusicRecording
duration: PT2M48S
duration ms: 168013
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501006
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T21:11:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d6ea0c619790405fd7022c6100d50792700afdcd6aa88e1f85d0451bb0cdd49
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/DELN22501006
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6ea0c619790405fd7022c6100d50792700afdcd6aa88e1f85d0451bb0cdd49. 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/DELN22501006.
  date published: 2026-07-08T03:53:27Z
audio: Des Knaben Wunderhorn: Lob des hohen Verstandes
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.138
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.609
  additional property: Energy
    type: PropertyValue
    value: 0.155
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.234
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.35
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.934
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Des Knaben Wunderhorn: Wo die schönen Trompeten blasen
type: MusicRecording
duration: PT7M3S
duration ms: 423040
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501007
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:46:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4340a4e29ffe116995b48bc0a4384786100b32b5a5ae311092b8c139707528d7
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/DELN22501007
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4340a4e29ffe116995b48bc0a4384786100b32b5a5ae311092b8c139707528d7. 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/DELN22501007.
  date published: 2026-07-08T03:53:27Z
audio: Des Knaben Wunderhorn: Wo die schönen Trompeten blasen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.909
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.287
  additional property: Energy
    type: PropertyValue
    value: 0.023
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.99
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.053
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.57
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Des Knaben Wunderhorn: Urlicht
type: MusicRecording
duration: PT5M24S
duration ms: 324626
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501008
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T09:33:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2c9803f1d97d3c5150bb3af0c863f256628f3dfb5f3f913a0d348d2863d66b6
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/DELN22501008
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c9803f1d97d3c5150bb3af0c863f256628f3dfb5f3f913a0d348d2863d66b6. 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/DELN22501008.
  date published: 2026-07-08T08:56:20Z
audio: Des Knaben Wunderhorn: Urlicht
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.512
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.131
  additional property: Energy
    type: PropertyValue
    value: 0.016
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.063
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.033
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.186
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n!
type: MusicRecording
duration: PT5M45S
duration ms: 345706
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501009
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:10:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x145a4eb380c4c462e9ede51237a45c90d43a7c45f7a1ae32178ae6cb1789965f
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/DELN22501009
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145a4eb380c4c462e9ede51237a45c90d43a7c45f7a1ae32178ae6cb1789965f. 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/DELN22501009.
  date published: 2026-07-08T03:22:41Z
audio: Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n!
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.266
  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: 0.102
  additional property: Energy
    type: PropertyValue
    value: 0.025
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.401
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.239
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Kindertotenlieder: No. 2, Nun seh' ich wohl, warum so dunkle Flammen
type: MusicRecording
duration: PT4M58S
duration ms: 298066
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T01:36:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45403273c30d5f3289e521544af09b54ca606463d8cc1dda4f32635b971a3d4a
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/DELN22501010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45403273c30d5f3289e521544af09b54ca606463d8cc1dda4f32635b971a3d4a. 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/DELN22501010.
  date published: 2026-07-08T08:56:20Z
audio: Kindertotenlieder: No. 2, Nun seh' ich wohl, warum so dunkle Flammen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.183
  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: 0.163
  additional property: Energy
    type: PropertyValue
    value: 0.078
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
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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: -25.454
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
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Kindertotenlieder: No. 3, Wenn dein Mütterlein
type: MusicRecording
duration: PT4M46S
duration ms: 286413
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
isrc code: DELN22501011
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xa57686a4d24453305adfbcfb34e8fdef2fec87d0a456b30380a88d5d85653aee
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/DELN22501011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa57686a4d24453305adfbcfb34e8fdef2fec87d0a456b30380a88d5d85653aee. 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/DELN22501011.
  date published: 2026-07-08T03:39:04Z
audio: Kindertotenlieder: No. 3, Wenn dein Mütterlein
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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Des Knaben Wunderhorn: Rheinlegendchen
type: MusicRecording
duration: PT3M18S
duration ms: 198466
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
popularity: 6
genre: classical
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ebfb3476c18c1f4073f7f2161bdbff81a4032a4c480ff952595424a5cc4410. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DELN22501002.
  date published: 2026-07-31T09:09:19Z
audio: Des Knaben Wunderhorn: Rheinlegendchen
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.389
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.07
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.091
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.78
  additional property: Key Name
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isrc code: DELN22501002
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELN22501002
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960376
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T09:09:19+00:00
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Des Knaben Wunderhorn: Verlorne Müh'
type: MusicRecording
duration: PT2M40S
duration ms: 160026
explicit: false
by artist: Gustav Mahler
by artist: Anna Lucia Richter
by artist: Gürzenich Orchester Köln
by artist: Jordan de Souza
in album: Mahler – Songs of Fate
  type: MusicAlbum
  date published: 2025-09-05
genre: classical
genre: orchestra
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1533534c6d13f3a730daa62cc03171d2c4ae812eeb7998509728d7e9ebfa48. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELN22501004.
  date published: 2026-08-01T00:40:43Z
audio: Des Knaben Wunderhorn: Verlorne Müh'
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  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
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.176
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.344
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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isrc code: DELN22501004
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T00:40:43+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DELN22501004
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960489
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960489
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:40:43+00:00
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x8e4902431be2a7a40fecdaeec197ac08e931df8f4b6061b3074a4d52d87706bb

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956312

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956312

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071304290

OTSTimestamp
type: PropertyValue
value: 2026-07-02T05:09:12Z

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 0x8e4902431be2a7a40fecdaeec197ac08e931df8f4b6061b3074a4d52d87706bb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071304290.
date published: 2026-07-02T05:09:12Z

Impromptu No. 3 in G Flat Major, Op. 51
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
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additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.166
additional property: Energy
  type: PropertyValue
  value: 0.05
additional property: Speechiness
  type: PropertyValue
  value: 0.037
additional property: Acousticness
  type: PropertyValue
  value: 0.991
additional property: Instrumentalness
  type: PropertyValue
  value: 0.913
additional property: Liveness
  type: PropertyValue
  value: 0.137
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.139
additional property: Loudness (dB)
  type: PropertyValue
  value: -31.244
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Minor

Ballade No. 4 in F Minor, Op. 52
type: MusicRecording
duration: PT10M23S
duration ms: 623546
explicit: false
by artist: Frédéric Chopin
by artist: Nelson Freire
in album: Chopin: Piano Concerto No.2; Ballade No.4; Berceuse; Polonaise Héroïque
  type: MusicAlbum
  date published: 2015-01-01
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: GBF071304300
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:49:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/GBF071304300
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 0xf4201976549660ec4aefc548a6c4b0e05ce3379d6cdbee96cc94a74adb069ec4. 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/GBF071304300.
  date published: 2026-07-08T03:22:41Z
audio: Ballade No. 4 in F Minor, Op. 52
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 89.637
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.259
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.042
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.273
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Berceuse in D Flat Major, Op. 57
type: MusicRecording
duration: PT4M8S
duration ms: 248613
explicit: false
by artist: Frédéric Chopin
by artist: Nelson Freire
in album: Chopin: Piano Concerto No.2; Ballade No.4; Berceuse; Polonaise Héroïque
  type: MusicAlbum
  date published: 2015-01-01
genre: classical
genre: early-romantic-era
genre: polish-classical
isrc code: GBF071304310
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:18:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x519e6691e39f889beebb661d591ff7842e9c53ffa2ec4b490b5d53e5aa5ca1db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071304310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0x519e6691e39f889beebb661d591ff7842e9c53ffa2ec4b490b5d53e5aa5ca1db. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF071304310.
  date published: 2026-06-13T12:53:06Z
audio: Berceuse in D Flat Major, Op. 57
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.219
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.946
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.061
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.764
  additional property: Key Name
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  additional property: Mode Name
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Puccini: Turandot
type: MusicAlbum
date published: 2014-09-05

Mahler: Symphonies Nos. 9 & 10
type: MusicAlbum
date published: 2014-08-05

Mahler: Symphony No. 6
type: MusicAlbum
date published: 2014-05-06

Tchaikovsky: Symphony No. 7 - Piano Concerto No. 3
type: MusicAlbum
date published: 2014-03-04

Tschaikowsky: Symphonie No. 4 - Capriccio Italien
type: MusicAlbum
date published: 2013-11-19

Mahler: Symphonie Nr. 7
type: MusicAlbum
date published: 2013-07-02

Tschaikowsky: Symphonie Nr. 2 - Rokoko-Variationen - Andante Cantabile
type: MusicAlbum
date published: 2013-01-01

Montalbetti: Orchestral Pictures
type: MusicAlbum
date published: 2025-01-10
track: Concerto pour flûte et orchestre "Memento vivere"
  type: MusicRecording
  duration: PT22M49S
  duration ms: 1369200
  explicit: false
  by artist: Eric Montalbetti
  by artist: Emmanuel Pahud
  by artist: Orchestre de la Suisse Romande
  by artist: Svetlin Roussev
  by artist: Jonathan Nott
  in album: Montalbetti: Orchestral Pictures
    type: MusicAlbum
    date published: 2025-01-10
  isrc code: CH9672400001
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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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/CH9672400001
  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 0x0c7074cbacba24473e797b2395094b52836fe1831e18ef7d0a24ec5e119bc4be. 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/CH9672400001.
    date published: 2026-07-08T03:20:19Z
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Bruckner: Symphonies Nos. 1 & 2
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date published: 2024-09-06
track: Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): I. Allegro
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track: Symphony No. 1 in C Minor, WAB 101 (Linz Version, 1868, Ed. Röder): III. Scherzo. Schnell

Mahler – Songs of Fate
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date published: 2025-09-05
track: Des Knaben Wunderhorn: Wer hat dies Liedlein erdacht?
track: Des Knaben Wunderhorn: Das irdische Leben
track: Des Knaben Wunderhorn: Des Antonius von Padua Fischpredigt
track: Des Knaben Wunderhorn: Lob des hohen Verstandes
track: Des Knaben Wunderhorn: Wo die schönen Trompeten blasen
track: Des Knaben Wunderhorn: Urlicht
track: Kindertotenlieder: No. 1, Nun will die Sonn' so hell aufgeh'n!
track: Kindertotenlieder: No. 2, Nun seh' ich wohl, warum so dunkle Flammen
track: Kindertotenlieder: No. 3, Wenn dein Mütterlein
track: Des Knaben Wunderhorn: Rheinlegendchen
track: Des Knaben Wunderhorn: Verlorne Müh'

Tchaikovksy: Orchestral Works
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date published: 2021-08-20

Feldman: The Viola in My Life
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date published: 2025-10-03