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  date published: 2026-06-21T07:29:20Z
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    additional property: OTSVerifyInstructions
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  track: Gurrelieder / Pt. 1: 5. Tove: Sterne jubeln
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      date published: 2026-07-08T03:20:19Z
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album: Wagner: Das Rheingold
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album: Wagner: Siegfried
album: Schreker: Der ferne Klang
album: Schreker, F.: Ferne Klang (Der) [Opera]
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album: Wagner: Classical Favourites
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album: György Ligeti: Le Grand Macabre
album: Strauss, R.: Salome
album: Feuerzauber Weltenbrand
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album: Schoenberg: Gurrelieder; Verklärte Nacht; Chamber Symphony No.1 &c
album: Spohr: Jessonda, WoO 53
album: Schreker: Der Schatzgräber
album: Zemlinsky, A. Von: Traumgorge (Der) [Opera]
album: Schreker, F.: Der Schatzgraber

Wagner: Siegfried, Act I, Scene 2: "Viel, Wanderer, weisst du mir von der Erde rauhem Rücken" (Mime, The Wanderer)
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by artist: Bernard Haitink
by artist: James Morris
by artist: Peter Haage
by artist: Bavarian Radio Symphony Orchestra
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  date published: 1991-01-01
genre: classical
genre: opera
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  date published: 2026-07-08T08:56:20Z
audio: Wagner: Siegfried, Act I, Scene 2: "Viel, Wanderer, weisst du mir von der Erde rauhem Rücken" (Mime, The Wanderer)
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Wagner: Siegfried, Act I, Scene 3: "Nothung! Nothung! Neidliches Schwert!" (Siegfried, Mime)
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by artist: Siegfried Jerusalem
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genre: classical
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:53:27Z
audio: Wagner: Siegfried, Act I, Scene 3: "Nothung! Nothung! Neidliches Schwert!" (Siegfried, Mime)
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Wagner: Siegfried, Act I, Scene 3: Forging Song. "Hoho! Hoho! Hohei! Schmiede, mein Hammer" (Siegfried, Mime)
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duration: PT3M50S
duration ms: 230773
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by artist: Richard Wagner
by artist: Bernard Haitink
by artist: Peter Haage
by artist: Siegfried Jerusalem
by artist: Bavarian Radio Symphony Orchestra
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genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T10:20:10Z
audio: Wagner: Siegfried, Act I, Scene 3: Forging Song. "Hoho! Hoho! Hohei! Schmiede, mein Hammer" (Siegfried, Mime)
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Liveness
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Zemlinksy: Der Traumgörge, Op. 11 (Live)
type: MusicAlbum
date published: 2020-01-03

Wagner: Das Rheingold
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date published: 1989

100 Best Opera Classics
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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: 2026-07-08T03:22:41Z
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track: Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin)
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  subject of: OpenTimestamps Proof of Existence
  audio: Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin)
track: Mozart: Die Zauberflöte, K. 620, Act 2: "O Isis und Osiris" (Sarastro, Chorus)
track: Rossini: Il barbiere di Siviglia, Act 2: Aria. "La calunnia è un venticello" (Basilio)
track: Verdi: Don Carlo, Act 2: "Nei giardin del bello saracin ostello" (Eboli, Tebaldo, Coro)
track: Verdi: Aïda, Act 1: "Se quel guerrier io fossi! ... Celeste Aida" (Radamès)
track: Verdi: La traviata, Act 3: "Teneste la promessa ... Addio del passato" (Violetta)
track: Verdi: Otello, Act 4: "Niun mi tema" (Otello)
track: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
track: Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
track: Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
track: Leoncavallo: Pagliacci, Act 1: "Recitar! ... Vesti la giubba" (Canio)
track: Giordano: Fedora, Act 2: "Amor ti vieta di non amar" (Loris)
track: Delibes: Lakmé, Act 2: Air des clochettes. "Où va la jeune hindoue" (Lakmé)
track: Bizet: La jolie fille de Perth, WD 15, Act 2: "Quand la flamme de l'amour" (Ralph)
track: Saint-Saëns: Samson et Dalila, Op. 47, Act 2, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
track: Wagner: Tannhäuser, Act 3: "Wie Todesahnung" - "O du, mein holder Abendstern" (Wolfram)

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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f358c116d3737fd40541bf46a0aff0333fb6c38ce295c6bc85899d30f32c991. 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/DEC628600585.
date published: 2026-07-08T03:53:27Z

Mozart: Die Zauberflöte, K. 620, Act 2: "Der Hölle Rache kocht in meinem Herzen" (Königin)
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Mozart: Die Zauberflöte, K. 620, Act 2: "O Isis und Osiris" (Sarastro, Chorus)
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duration: PT3M12S
duration ms: 192440
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by artist: Wolfgang Amadeus Mozart
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by artist: London Classical Players
by artist: Schütz Choir of London
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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: Mozart: Die Zauberflöte, K. 620, Act 2: "O Isis und Osiris" (Sarastro, Chorus)
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Rossini: Il barbiere di Siviglia, Act 2: Aria. "La calunnia è un venticello" (Basilio)
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by artist: Ruggero Raimondi
by artist: London Symphony Orchestra
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Rossini: Il barbiere di Siviglia, Act 2: Aria. "La calunnia è un venticello" (Basilio)
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Verdi: Don Carlo, Act 2: "Nei giardin del bello saracin ostello" (Eboli, Tebaldo, Coro)
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subject of: OpenTimestamps Proof of Existence
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Verdi: Aïda, Act 1: "Se quel guerrier io fossi! ... Celeste Aida" (Radamès)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Verdi: Aïda, Act 1: "Se quel guerrier io fossi! ... Celeste Aida" (Radamès)
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Verdi: La traviata, Act 3: "Teneste la promessa ... Addio del passato" (Violetta)
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duration: PT5M43S
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by artist: Giuseppe Verdi
by artist: Aldo Ceccato
by artist: Beverley Sills
by artist: Royal Philharmonic Orchestra
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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: 2026-07-08T03:53:27Z
audio: Verdi: La traviata, Act 3: "Teneste la promessa ... Addio del passato" (Violetta)
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Verdi: Otello, Act 4: "Niun mi tema" (Otello)
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duration: PT5M18S
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by artist: José Cura
by artist: Philharmonia Orchestra
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Verdi: Otello, Act 4: "Niun mi tema" (Otello)
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Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
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duration: PT4M44S
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by artist: Giacomo Puccini
by artist: Sir John Barbirolli
by artist: Renata Scotto
by artist: Orchestra Del Teatro Dell'Opera Di Roma
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additional property: OTSVerificationAPI
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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: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
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Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
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by artist: James Levine
by artist: Plácido Domingo
by artist: Philharmonia Orchestra
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
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Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
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by artist: Kiri Te Kanawa
by artist: London Symphony Orchestra
by artist: Myung-Whun Chung
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Puccini: Turandot, Act 1: "Signore, ascolta" (Liù)
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Leoncavallo: Pagliacci, Act 1: "Recitar! ... Vesti la giubba" (Canio)
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by artist: José Carreras
by artist: Philharmonia Orchestra
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genre: italian-opera
genre: italian-romanticism
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Leoncavallo: Pagliacci, Act 1: "Recitar! ... Vesti la giubba" (Canio)
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Giordano: Fedora, Act 2: "Amor ti vieta di non amar" (Loris)
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by artist: Plácido Domingo
by artist: Nello Santi
by artist: Orchestra of the Deutsche Oper Berlin
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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: 2026-07-08T03:22:41Z
audio: Giordano: Fedora, Act 2: "Amor ti vieta di non amar" (Loris)
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Delibes: Lakmé, Act 2: Air des clochettes. "Où va la jeune hindoue" (Lakmé)
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duration: PT6M30S
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by artist: Léo Delibes
by artist: Alain Lombard
by artist: Mady Mesplé
by artist: Orchestre du Theatre National de IOpera-Comique
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Delibes: Lakmé, Act 2: Air des clochettes. "Où va la jeune hindoue" (Lakmé)
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Bizet: La jolie fille de Perth, WD 15, Act 2: "Quand la flamme de l'amour" (Ralph)
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duration: PT4M57S
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by artist: Georges Bizet
by artist: Georges Prêtre
by artist: José van Dam
by artist: Orchestre Philharmonique de Radio France
by artist: Nouvel Orchestre Philharmonique de Radio France
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Bizet: La jolie fille de Perth, WD 15, Act 2: "Quand la flamme de l'amour" (Ralph)
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Saint-Saëns: Samson et Dalila, Op. 47, Act 2, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
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duration: PT5M15S
duration ms: 315653
explicit: false
by artist: Camille Saint-Saëns
by artist: Georges Prêtre
by artist: Jon Vickers
by artist: Rita Gorr
by artist: Orchestre du Théâtre National de l'Opéra de Paris
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genre: classical
genre: late-romantic-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Saint-Saëns: Samson et Dalila, Op. 47, Act 2, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
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Wagner: Tannhäuser, Act 3: "Wie Todesahnung" - "O du, mein holder Abendstern" (Wolfram)
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duration: PT4M18S
duration ms: 258680
explicit: false
by artist: Richard Wagner
by artist: Dietrich Fischer-Dieskau
by artist: Orchester Der Staatsoper Berlin
by artist: Franz Konwitschny
by artist: Staatsopernorchester Berlin
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genre: classical
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Wagner: Tannhäuser, Act 3: "Wie Todesahnung" - "O du, mein holder Abendstern" (Wolfram)
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Wagner: Siegfried
type: MusicAlbum
date published: 1991-01-01
track: Wagner: Siegfried, Act I, Scene 2: "Viel, Wanderer, weisst du mir von der Erde rauhem Rücken" (Mime, The Wanderer)
track: Wagner: Siegfried, Act I, Scene 3: "Nothung! Nothung! Neidliches Schwert!" (Siegfried, Mime)
track: Wagner: Siegfried, Act I, Scene 3: Forging Song. "Hoho! Hoho! Hohei! Schmiede, mein Hammer" (Siegfried, Mime)

Schreker: Der ferne Klang
type: MusicAlbum
date published: 2013-07-30

Schreker, F.: Ferne Klang (Der) [Opera]
type: MusicAlbum
date published: 1991-01-01

Wagner: Das Rheingold
type: MusicAlbum
date published: 1989-01-01

Wagner - Masterwork
type: MusicAlbum
date published: 2017-03-17

Wagner: The Classics
type: MusicAlbum
date published: 2021-08-28

Wagner: Classical Favourites
type: MusicAlbum
date published: 2022-02-26

Anniversary Edition
type: MusicAlbum
date published: 2021-06-04

György Ligeti: Le Grand Macabre
type: MusicAlbum
date published: 1991
track: Le Grand Macabre, Akt I: Vorspiel
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  duration: PT1M9S
  duration ms: 69226
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  by artist: Michael Meschke
  by artist: Vienna Radio Symphony Orchestra
  by artist: Elgar Howarth
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    date published: 1991
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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
  audio: Le Grand Macabre, Akt I: Vorspiel
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Strauss, R.: Salome
type: MusicAlbum
date published: 1971-01-01
track: Salome, Op. 54, TrV 215 / Scene 1: "Wie schön ist die Prinzessin Salome heute Nacht!"
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  by artist: Richard Strauss
  by artist: Ursula Boese
  by artist: Wiesław Ochman
  by artist: Carl Schultz
  by artist: Kurt Moll
  by artist: Hamburg State Opera Orchestra
  by artist: Karl Böhm
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    date published: 1971-01-01
  genre: classical
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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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Zemlinsky, A. Von: Traumgorge (Der) [Opera]
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Schreker, F.: Der Schatzgraber
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