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  track: Die Zauberflöte, K. 620: Der Vogelfänger bin ich ja
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  track: La Rondine, Act I: Chi il bel sogno di Doretta
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Tosca, S. 69, Act II: Vissi d'arte (Tosca)
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Puccini: Tosca, Act I: "Tre sbirri, una carrozza" (Scarpia, Spoletta, Coro)
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OpenTimestamps Proof of Existence
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date published: 2026-07-02T11:38:34Z

Lakmé, Act I: No. 2, Flower Duet
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Die Zauberflöte, K. 620: Der Vogelfänger bin ich ja
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track: Il Barbiere di Siviglia, Act I: Largo al factotum
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subject of: OpenTimestamps Proof of Existence
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La Wally, Act I: Ebben? ne andrò lontana
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Il Barbiere di Siviglia, Act I: Largo al factotum
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  date published: 2026-07-08T08:56:20Z
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Il Barbiere di Siviglia, Act I: La ran la le ra la ran la la ... Largo al factotum (Figaro)
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  date published: 2026-07-08T03:22:41Z
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Don Giovanni, K. 527: Overture
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Andrea Chenier, Act III: La Mamma Morta
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'O sole mio
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Tannhäuser, WWV 70: Overture
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subject of: OpenTimestamps Proof of Existence
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audio: Tannhäuser, WWV 70: Overture
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Requiem: V. Pie Jesu
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subject of: OpenTimestamps Proof of Existence
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Così fan tutte, K. 588, Act I: Un'aura amorosa (Ferrando)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
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Concierto de Aranjuez: II. En Aranjuez con tu amor
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Messe à trois voix, Op. 12: V. Panis angelicus
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  date published: 2026-07-08T08:56:20Z
audio: Messe à trois voix, Op. 12: V. Panis angelicus
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La traviata, Act I: Libiamo ne' lieti calici (Alfredo, Violetta)
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  date published: 2026-07-08T03:22:41Z
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Lakmé, Act I: No. 2, Flower Duet
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Gianni Schicchi: O mio babbino caro
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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: 2026-07-08T03:39:04Z
audio: Gianni Schicchi: O mio babbino caro
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Aida, Act II: Triumphal Chorus - Grand March "Gloria all'Egitto"
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by artist: Riccardo Muti
by artist: New Philharmonia Orchestra
by artist: Chorus of the Royal Opera House, Covent Garden
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Aida, Act II: Triumphal Chorus - Grand March "Gloria all'Egitto"
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The Greatest Opera Classics
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date published: 2018-07-02
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  additional property: OTSVerificationAPI
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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: 2026-07-02T11:38:34Z
  audio: La Wally, Act I: Ebben? ne andrò lontana
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track: Gianni Schicchi: O mio babbino caro
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  by artist: Sir Charles Mackerras
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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: 2026-07-02T05:09:12Z
  audio: Gianni Schicchi: O mio babbino caro
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track: Madama Butterfly, Act II: Un bel di (Butterfly)
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  by artist: Orchestre de l'Opéra de Lyon
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  subject of: OpenTimestamps Proof of Existence
  audio: Madama Butterfly, Act II: Un bel di (Butterfly)
track: La bohème, Act I: Sì, Mi chiamano Mimì (Mimì, Rodolfo, Schaunard, Colline, Marcello)
track: La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
track: Tosca, S. 69, Act I: Recondita armonia
track: Tosca, S. 69, Act III: E lucevan le stelle (Cavaradossi)
track: Carmen, WD 31, Act I: No. 5, Habanera, L'amour est un oiseau rebelle
track: Andrea Chenier: La mamma morta
track: Manon Lescaut, Act I: Donna non vidi mai
track: Le Nozze di Figaro, K. 492, Act I: Non più andrai
track: Les Pêcheurs de Perles, WD 13, Act I: C'est toi....Au fond du temple saint
track: Rigoletto, Act III: La donna è mobile
track: Turandot, Act I: Signore, ascolta!
track: Il Barbiere di Siviglia, Act I Scene 1: La ran la le ra, la ran la la...Largo al factotum (Figaro)
track: Carmen Suite No. 1: VI. Les Toréadors
track: The Barber of Seville: Overture (Excerpt)
track: Tosca, S. 69, Act II: Vissi d'arte (Tosca)

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
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date published: 2026-07-02T05:09:12Z

Madama Butterfly, Act II: Un bel di (Butterfly)
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La bohème, Act I: Sì, Mi chiamano Mimì (Mimì, Rodolfo, Schaunard, Colline, Marcello)
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by artist: James Conlon
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by artist: Francesco Ellero D'Artegna
by artist: Gino Quilico
by artist: José Carreras
by artist: Richard Cowan
by artist: Orchestre National De France
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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: 2026-07-02T05:09:12Z
audio: La bohème, Act I: Sì, Mi chiamano Mimì (Mimì, Rodolfo, Schaunard, Colline, Marcello)
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La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: La Bohème, Act I: O soave fanciulla (Rodolfo, Marcello, Mimì)
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Tosca, S. 69, Act I: Recondita armonia
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Tosca, S. 69, Act III: E lucevan le stelle (Cavaradossi)
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Carmen, WD 31, Act I: No. 5, Habanera, L'amour est un oiseau rebelle
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Andrea Chenier: La mamma morta
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Manon Lescaut, Act I: Donna non vidi mai
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Le Nozze di Figaro, K. 492, Act I: Non più andrai
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Les Pêcheurs de Perles, WD 13, Act I: C'est toi....Au fond du temple saint
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Rigoletto, Act III: La donna è mobile
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Turandot, Act I: Signore, ascolta!
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Il Barbiere di Siviglia, Act I Scene 1: La ran la le ra, la ran la la...Largo al factotum (Figaro)
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Carmen Suite No. 1: VI. Les Toréadors
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The Barber of Seville: Overture (Excerpt)
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Opera 100
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Opera 100 Hits
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Opera 101
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The Classical Guide to Puccini Opera
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The 99 Most Essential Opera Classics
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Ernani
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Collection: Giuseppe Verdi
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Semiramide
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