Marcello Viotti
type: MusicGroup
genre: opera
description: thumb|Image of Marcello Viotti Marcello Viotti (29 June 195416 February 2005) was a Swiss classical music conductor, best known for opera. Viotti was born in Vallorbe, in the French-speaking region
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  track: Pregária
  track: Ave Maria: Arr. From Bach's Prelude No.1 BWV 846
  track: Messe solennelle de Ste. Cécile: Sanctus
  track: "Bist du bei mir", BWV 508 Aria
  track: Repentir (O Divine Redeemer)
  track: Climb Ev'ry Mountain [The Sound Of Music]
  track: Ave Maria
  track: Wesendonck Lieder, WWV 91: Der Engel (Orch. Felix Mottl)
  track: "Preghiera"
album: Silvia Marcovici, Vol. 1: Violin Concertos
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album: Rossini: La Scala di Seta, Early One-Act Operas, Vol. 5/5
album: Rossini: Highlights from his early One-Act Operas
album: Ponchielli: La Gioconda, Op. 9
album: Thoresen: The Sonic Mind
album: Arvo Pärt: Live
album: Rossini: La pietra del paragone (Catania, 1988)
album: Edita Gruberová (Live)
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album: Bellini: Il Pirata
album: Poulenc / Szymanowski / Penderecki / Rihm: Stabat Mater
album: Bizet: Pecheurs De Perles (Les) (The Pearl Fishers)
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album: Ernest Chausson - Le Roi Arthus (Live)
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track: Tosca, S. 69, Act III: E lucevan le stelle (Cavaradossi)
track: Turandot: Nessun dorma
track: Puccini: La Bohème, Act I: Che gelida manina
track: "Panis Angelicus", IAC 25
track: Violin Concerto No. 2 in B Minor, Op. 7: III. Rondo - "La Campanella"

Ave Maria: Arr. From Bach's Prelude No.1 BWV 846
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  date published: 2026-07-02T05:09:12Z
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Ave Maria
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Thaïs: Méditation
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Thais: Act II Scene 2: Meditation
type: MusicRecording
duration: PT5M54S
duration ms: 354133
explicit: false
by artist: Jules Massenet
by artist: Eva Mei
by artist: Michele Pertusi
by artist: William Joyner
by artist: Christophe Fel
by artist: Christine Buffle
by artist: Élodie Méchain
by artist: Tiziana Carraro
by artist: Anna Smiech
by artist: Enrico Masiero
by artist: Teatro la Fenice Chorus
by artist: Teatro la Fenice Orchestra
by artist: Marcello Viotti
in album: Massenet: Thais
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  date published: 2003-01-01
genre: classical
isrc code: ITN320906910
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additional property: OTSVerifyInstructions
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  date published: 2026-07-02T03:55:08Z
audio: Thais: Act II Scene 2: Meditation
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Paganini: Violin Concerto No. 1 in E-Flat Major, Op. 6: III. Rondo. Allegro spiritoso
type: MusicRecording
duration: PT8M59S
duration ms: 539573
explicit: false
by artist: Niccolò Paganini
by artist: Alexander Markov
by artist: Marcello Viotti
by artist: Deutsche Radio Philharmonie Saarbrücken-Kaiserslautern
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isrc code: FRZ209109303
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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: 2026-07-02T03:55:08Z
audio: Paganini: Violin Concerto No. 1 in E-Flat Major, Op. 6: III. Rondo. Allegro spiritoso
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Donizetti: L'elisir d'amore, Act 2: "Una furtiva lagrima" (Nemorino)
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duration: PT4M17S
duration ms: 257999
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by artist: Gaetano Donizetti
by artist: Marcello Viotti
by artist: English Chamber Orchestra
by artist: Roberto Alagna
in album: 40 Most Beautiful Arias
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popularity: 39
genre: opera
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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: 2026-06-13T17:25:41Z
audio: Donizetti: L'elisir d'amore, Act 2: "Una furtiva lagrima" (Nemorino)
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Donizetti: L'elisir d'amore, Act 2: No. 11 "Una furtiva lagrima" (Nemorino)
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duration: PT4M27S
duration ms: 267302
explicit: false
by artist: Gaetano Donizetti
by artist: Marcello Viotti
by artist: Muenchner Rundfunkorchester
in album: Viva Villazón!
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popularity: 12
genre: opera
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Donizetti: L'elisir d'amore, Act 2: No. 11 "Una furtiva lagrima" (Nemorino)
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Instrumentalness
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Valence (Positivity)
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Loudness (dB)
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Pregária
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duration: PT4M5S
duration ms: 245000
explicit: false
by artist: Fermin Maria Alvarez
by artist: Plácido Domingo
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marcello Viotti
in album: Plácido Domingo - Sacred Songs
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isrc code: DEN960230504
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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: 2026-07-08T03:53:27Z
audio: Pregária
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Messe solennelle de Ste. Cécile: Sanctus
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duration: PT5M10S
duration ms: 310000
explicit: false
by artist: Charles Gounod
by artist: Plácido Domingo
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
by artist: Marcello Viotti
by artist: Coro Sinfonico di Milano Giuseppe Verdi
in album: Plácido Domingo - Sacred Songs
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genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Messe solennelle de Ste. Cécile: Sanctus
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"Bist du bei mir", BWV 508 Aria
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duration: PT3M45S
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by artist: Gottfried Heinrich Stölzel
by artist: Plácido Domingo
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by artist: Marcello Viotti
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subject of: OpenTimestamps Proof of Existence
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audio: "Bist du bei mir", BWV 508 Aria
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Repentir (O Divine Redeemer)
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subject of: OpenTimestamps Proof of Existence
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Climb Ev'ry Mountain [The Sound Of Music]
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subject of: OpenTimestamps Proof of Existence
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audio: Climb Ev'ry Mountain [The Sound Of Music]
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Wesendonck Lieder, WWV 91: Der Engel (Orch. Felix Mottl)
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"Preghiera"
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Silvia Marcovici, Vol. 1: Violin Concertos
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Bellini: La Sonnambula (Highlights)
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Massenet: Roi De Lahore (Le)
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Bellini, V.: Operas (Complete)
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Anniversary Edition
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date published: 2018-10-05

The Essentials: Works for Violin
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date published: 2016-08-05
track: Spiegel im Spiegel (Version for Violin & Piano)
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track: La scala di seta: XII. Recitativo ed Aria

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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T05:09:12Z
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track: 7 Magnificat Antiphons: No. 5. O Morgenstern
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  by artist: Bavarian Radio Chorus
  by artist: Peter Dijkstra
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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
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: 7 Magnificat Antiphons: No. 5. O Morgenstern
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Rossini: La pietra del paragone (Catania, 1988)
type: MusicAlbum
date published: 2023-10-06

Edita Gruberová (Live)
type: MusicAlbum
date published: 2018-07-06

Puccini: Famous Opera Arias
type: MusicAlbum
date published: 2016-01-01

Bellini: Il Pirata
type: MusicAlbum
date published: 2012

Poulenc / Szymanowski / Penderecki / Rihm: Stabat Mater
type: MusicAlbum
date published: 2004-01-01

Bizet: Pecheurs De Perles (Les) (The Pearl Fishers)
type: MusicAlbum
date published: 2004-01-01
track: Les pecheurs de perles (The Pearl Fishers): Prelude
  type: MusicRecording
  duration: PT1M53S
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  by artist: Georges Bizet
  by artist: Annick Massis
  by artist: Yasuharu Nakajima
  by artist: Luca Grassi
  by artist: Luigi De Donato
  by artist: Teatro la Fenice Chorus
  by artist: Teatro la Fenice Orchestra
  by artist: Marcello Viotti
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    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: opera
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ffcf191a003cd3825100cdd2b232f5abf6b48135f2b8f379f471ce3f9c1540. 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/ITN320907872.
    date published: 2026-07-08T03:20:19Z
  audio: Les pecheurs de perles (The Pearl Fishers): Prelude
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    additional property: Danceability
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Les pecheurs de perles (The Pearl Fishers): Act II Scene 2: Me voila seule dans la nuit – Comme autrefois dans la nuit sombre (Leila)
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  by artist: Georges Bizet
  by artist: Annick Massis
  by artist: Yasuharu Nakajima
  by artist: Luca Grassi
  by artist: Luigi De Donato
  by artist: Teatro la Fenice Chorus
  by artist: Teatro la Fenice Orchestra
  by artist: Marcello Viotti
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    date published: 2004-01-01
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:22:41Z
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Massenet: Thais
type: MusicAlbum
date published: 2003-01-01
track: Thais: Act II Scene 2: Meditation

Rossini, G.: Arien und Buffoduette
type: MusicAlbum
date published: 2001-08-09

Jules Massenet: Hérodiade
type: MusicAlbum
date published: 2001-03-31

Les Ballets Russes, Vol. 2
type: MusicAlbum
date published: 2000-01-01

Donizetti: La Favorite
type: MusicAlbum
date published: 1999-10-04
track: La Favorite: Act I: Prélude
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  duration: PT5M21S
  duration ms: 321666
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  by artist: Gaetano Donizetti
  by artist: Marcello Viotti
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    type: MusicAlbum
    date published: 1999-10-04
  genre: opera
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:53:27Z
  audio: La Favorite: Act I: Prélude
    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
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    additional property: Danceability
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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)
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Ernest Chausson - Le Roi Arthus (Live)
type: MusicAlbum
date published: 1998-11-24

Schubert: The Complete Symphonic Works, Vol. IV
type: MusicAlbum
date published: 1996-01-01

Schubert: The Complete Symphonic Works, Vol. II
type: MusicAlbum
date published: 1994-01-24

Donizetti : L'elisir d'amore [Highlights] (Apex)
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date published: 1993

Donizetti : L'elisir d'amore
type: MusicAlbum
date published: 1993
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  duration: PT1M59S
  duration ms: 119560
  explicit: false
  by artist: Gaetano Donizetti
  by artist: Marcello Viotti
  by artist: Francesca Provvisionato
  by artist: Tallis Chamber Choir
  by artist: English Chamber Orchestra
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    type: MusicAlbum
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  genre: opera
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  additional property: OTSBitcoinBlockVerifyURL
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-08T03:22:41Z
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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track: Donizetti: L'elisir d'amore, Act 1: "Udite, udite, o rustici" (Dulcamara, Coro)
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  by artist: Tallis Chamber Choir
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    type: MusicAlbum
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  genre: opera
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-08T03:53:27Z
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track: Donizetti: L'elisir d'amore, Act 1: "Ardir! Ha forse il cielo mandato" (Nemorino, Dulcamara)
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  by artist: Marcello Viotti
  by artist: Bruno Praticò
  by artist: Roberto Alagna
  by artist: English Chamber Orchestra
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Donizetti: L'elisir d'amore, Act 1: "Ardir! Ha forse il cielo mandato" (Nemorino, Dulcamara)

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

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

Donizetti: L'elisir d'amore, Act 1: "Ardir! Ha forse il cielo mandato" (Nemorino, Dulcamara)
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Schubert: The Complete Symphonic Works, Vol. I
type: MusicAlbum
date published: 1992-01-01

Rossini: L'occasione fa il ladro, Early One-Act Operas, Vol. 3/5
type: MusicAlbum
date published: 1992-01-01
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  by artist: Maria Bayo
  by artist: Natale de Carolis
  by artist: Iorio Zennaro
  by artist: Francesca Provvisionato
  by artist: Fabio Previati
  by artist: Fulvio Massa
  by artist: Marcello Viotti
  by artist: English Chamber Orchestra
  in album: Rossini: L'occasione fa il ladro, Early One-Act Operas, Vol. 3/5
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    date published: 1992-01-01
  genre: classical
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  additional property: OTSVerificationAPI
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: L'occasione fa il ladro: IX. Quintetto
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track: L'occasione fa il ladro: XIII. Duetto
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  by artist: Maria Bayo
  by artist: Natale de Carolis
  by artist: Iorio Zennaro
  by artist: Francesca Provvisionato
  by artist: Fabio Previati
  by artist: Fulvio Massa
  by artist: Marcello Viotti
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
  audio: L'occasione fa il ladro: XIII. Duetto
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Rossini: L'Inganno Felice, Early One-Act Operas, Vol. 4/5
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date published: 1992-01-01
track: L'Inganno Felice: VI. Aria
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  by artist: Natale de Carolis
  by artist: Amelia Felle
  by artist: Iorio Zennaro
  by artist: Fabio Previato
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  by artist: Marcello Viotti
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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
  audio: L'Inganno Felice: VI. Aria
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Schubert: The Complete Symphonic Works
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  genre: classical
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:22:41Z
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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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  by artist: Franz Schubert
  by artist: Marcello Viotti
  by artist: Rundfunk-Sinfonieorchester Saarbrücken
  in album: Schubert: The Complete Symphonic Works
    type: MusicAlbum
    date published: 1992
  genre: classical
  genre: classical-piano
  genre: chamber-music
  isrc code: USA371612523
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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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: Symphony No. 1 in D Major, D. 82: IV. Allegro vivace
track: Symphony No. 2 in B-Flat Major, D. 125: IV. Presto
track: Symphony No. 3 in D Major, D. 200: III. Menuetto. Vivace - Trio
track: Symphony No. 4 in C Minor, D. 417, "The Tragic": II. Andante
track: Symphony No. 4 in C Minor, D. 417, "The Tragic": III. Menuett. Allegro vivace
track: Symphony No. 5 in B-Flat Major, D. 485: III. Menuett. Allegro molto
track: Symphony No. 6 in C Major, D. 589, "Little Symphony in C": IV. Allegro moderato

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

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371612523

OTSTimestamp
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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 0xa7f8077c81a998324f1d2cb4845ae8e52e8b6972ba5d857db03325630122f4fc. 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/USA371612523.
date published: 2026-07-08T08:56:20Z

Symphony No. 1 in D Major, D. 82: IV. Allegro vivace
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additional property: Mode (Major/Minor)
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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: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Symphony No. 2 in B-Flat Major, D. 125: IV. Presto
type: MusicRecording
duration: PT5M41S
duration ms: 341026
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
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additional property: CopyrightID
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA371612527
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44bb196a4f8272462a10bb271e362d01e48e21b6786b3b24bc95570ab3254b17. 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/USA371612527.
  date published: 2026-07-08T03:22:41Z
audio: Symphony No. 2 in B-Flat Major, D. 125: IV. Presto
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  additional property: Energy
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  additional property: Valence (Positivity)
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Symphony No. 3 in D Major, D. 200: III. Menuetto. Vivace - Trio
type: MusicRecording
duration: PT4M41S
duration ms: 281573
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USA560806260
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560806260
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc86fa72e9f8e9d65d7211df8691353733c8a36aea9ecc3f3f8b85f79107de6. 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/USA560806260.
  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 3 in D Major, D. 200: III. Menuetto. Vivace - Trio
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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Symphony No. 4 in C Minor, D. 417, "The Tragic": II. Andante
type: MusicRecording
duration: PT9M35S
duration ms: 575840
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USA560678979
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
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560678979
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2eb33eab02ff1ae25a9266d0fe9fff1ae7763baade44db56915c830fc941aec. 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/USA560678979.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 4 in C Minor, D. 417, "The Tragic": II. Andante
  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
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  additional property: Danceability
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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: Valence (Positivity)
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Symphony No. 4 in C Minor, D. 417, "The Tragic": III. Menuett. Allegro vivace
type: MusicRecording
duration: PT3M35S
duration ms: 215600
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USA560678980
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560678980
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 0xc83d10a295ae9a0006f9bfb6d4acccfdb51cf8de6683b3c4f6e101afee2a6f81. 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/USA560678980.
  date published: 2026-07-08T03:20:19Z
audio: Symphony No. 4 in C Minor, D. 417, "The Tragic": III. Menuett. Allegro vivace
  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
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  additional property: Danceability
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Symphony No. 5 in B-Flat Major, D. 485: III. Menuett. Allegro molto
type: MusicRecording
duration: PT5M56S
duration ms: 356706
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USA560678984
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:24:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560678984
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34727e01499e9c0c20f4ccfb0f8211adb1b9b61c2d92ba3e7ed37fe847d40bd9. 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/USA560678984.
  date published: 2026-07-08T03:53:27Z
audio: Symphony No. 5 in B-Flat Major, D. 485: III. Menuett. Allegro molto
  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
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  additional property: Danceability
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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: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Symphony No. 6 in C Major, D. 589, "Little Symphony in C": IV. Allegro moderato
type: MusicRecording
duration: PT9M7S
duration ms: 547906
explicit: false
by artist: Franz Schubert
by artist: Marcello Viotti
by artist: Rundfunk-Sinfonieorchester Saarbrücken
in album: Schubert: The Complete Symphonic Works
  type: MusicAlbum
  date published: 1992
genre: classical
genre: classical-piano
genre: chamber-music
isrc code: USA560675798
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T19:16:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560675798
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
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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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Paganini: 24 Caprices, Op. 1: No. 20 in D Major
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subject of: OpenTimestamps Proof of Existence
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Paganini: 24 Caprices, Op. 1: No. 24 in A Minor
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subject of: OpenTimestamps Proof of Existence
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Rossini: Il Signor Bruschino, Early One-Act Operas, Vol. 1/5
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Martin: Complete Works for Piano & Orchestra
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Poulenc: Aubade, FP 51 - Mozart: Serenade No. 11 in E-Flat Major, K. 375
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ORFEO 40th Anniversary Edition: 40 Ultimate Recordings
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Tosca, S. 69, Act III: E lucevan le stelle (Cavaradossi)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Tosca, S. 69, Act III: E lucevan le stelle (Cavaradossi)
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Turandot: Nessun dorma
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audio: Turandot: Nessun dorma
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Puccini: La Bohème, Act I: Che gelida manina
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"Panis Angelicus", IAC 25
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Violin Concerto No. 2 in B Minor, Op. 7: III. Rondo - "La Campanella"
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by artist: Alexander Markov
by artist: Marcello Viotti
by artist: Saarbrücken Radio Symphony Orchestra
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audio: Violin Concerto No. 2 in B Minor, Op. 7: III. Rondo - "La Campanella"
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