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album: 100 Must-Have Opera Karaoke
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album: Soprano Love Arias: 50 Must-Have Opera Classics
album: Nesun Dorma - Vesti la guiba and Other Opera Blockbusters
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Soprano Love Arias: 50 Must-Have Opera Classics
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Nesun Dorma - Vesti la guiba and Other Opera Blockbusters
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All You Need Classics: Chillout
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Meditation: Classic Care - Music for Healthy Living for Calming Reflection & Quiet Time
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Classical Stress Relief: 99 Must-Have Classical Meditation & Relaxation
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track: Melancholy Galliard
track: Tosca, Act III: "E lucevan le stelle" (Instrumental Version)

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Xerxe, HWV 40: Largo
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Melancholy Galliard
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Tosca, Act III: "E lucevan le stelle" (Instrumental Version)
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Classical Masterpieces of the Millennium
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Classics for a Rainy Day
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100 Must-Have History of Classical Music
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100 Must-Have Amour Romantic Love Song Classics
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100 Must-Have Valentine's Day Love Song Classics
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date published: 2015-01-20

Classic á la Carte: International Dinner Party - Classical Music for Dining and Entertaining
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150 Must-Have Classical Journey Around the World
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100 Must-Have Italian Classics
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track: La traviata, Act I: "Libiamo ne'lieti" (Brindisi )

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The Darkside of Classical Music: Dark, Scary & Haunting Classics
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Klassik für Jedermann: Galakonzert der Tenöre
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Puccini
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100 Meisterwerke Oper
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100 Must-Have Composers of Classical Music
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100 Must-Have Heroic Classics
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The History of Romantic Era Music (100 Famous Songs)
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Opera Recital: Oghnyan Nicolov
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Stefan Elenkov: Opera Recital
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Cello Concertos
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Puccini: Madama Butterfly (Highlights)
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Атанасов: Гергана - Чайковски: Евгений Онегин
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Международен конкурс за млади оперни певци, София, 1973
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Ballet Highlights - Tchaikovsky, P.I. / Ponchielli, A. / Berlioz, H. / Chopin, F. / Khatchaturian, A. / Delibes, L. (Great Ballet Classics)
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Puccini in Love
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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  subject of: OpenTimestamps Proof of Existence
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track: La Boheme, Act I: Che gelida manina (Instrumental Version)
track: Turandot, Act I: Non piangere, Liu (Instrumental Version)
track: Turandot, Act I: Signore, ascolta (Instrumental Version)
track: Manon Lescaut, Act III: Intermezzo
track: Tosca, Act III: E lucevan le stelle (Instrumental Version)
track: Turandot, Act I: Moon Chorus - "Gira la cote"
track: Turandot, Act III: Nessun dorma (Instrumental Version)
track: Madama Butterfly, Act II: Humming Chorus

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OTSVerificationAPI
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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7912164585cfaade8169cb4086a8787dbd608a2f73fdd99d299d34678433a227. 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/US5541601385.
date published: 2026-07-08T03:20:19Z

Madama Butterfly, Act I: Viene la sera (Instrumental Version)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: La Boheme, Act I: Che gelida manina (Instrumental Version)
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Turandot, Act I: Non piangere, Liu (Instrumental Version)
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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: Turandot, Act I: Non piangere, Liu (Instrumental Version)
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Turandot, Act I: Signore, ascolta (Instrumental Version)
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subject of: OpenTimestamps Proof of Existence
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66230fe58e4973dfe46f2d7fc252887c7edb470c39809927f2f8d8f8728df46. 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/US5541601402.
  date published: 2026-07-08T03:53:27Z
audio: Manon Lescaut, Act III: Intermezzo
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Tosca, Act III: E lucevan le stelle (Instrumental Version)
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by artist: Giacomo Puccini
by artist: Sofia Philharmonic Orchestra
by artist: Emil Tabakov
in album: Puccini in Love
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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
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  date published: 2026-07-02T03:55:08Z
audio: Tosca, Act III: E lucevan le stelle (Instrumental Version)
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Turandot, Act I: Moon Chorus - "Gira la cote"
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by artist: Sofia Philharmonic Orchestra
by artist: Emil Tabakov
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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: Turandot, Act I: Moon Chorus - "Gira la cote"
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Turandot, Act III: Nessun dorma (Instrumental Version)
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duration: PT3M12S
duration ms: 192052
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by artist: Giacomo Puccini
by artist: Sofia Philharmonic Orchestra
by artist: Emil Tabakov
in album: Puccini in Love
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additional property: CopyrightID
additional property: CopyrightStatus
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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: 2026-06-13T17:25:41Z
audio: Turandot, Act III: Nessun dorma (Instrumental Version)
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La mayoría de las arias hermosas de la ópera
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date published: 2010-01-01
track: The Merry Widow: Vilja Lied
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  by artist: Renata Scotto
  by artist: Slowakische Philharmonie
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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: The Merry Widow: Vilja Lied
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track: An Italian in Algiers - Aria Isabella - Cruda Sorte
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  by artist: Donau Philharmonisches Orchester
  by artist: Rita Noel
  by artist: Gioachino Rossini
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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: An Italian in Algiers - Aria Isabella - Cruda Sorte
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track: La Cenarentola - Aria Angelina Act II - Nacqui all affanno
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  subject of: OpenTimestamps Proof of Existence
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track: The Magic Flute, KV 620: Act I: "Papagena! Papageno!"

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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
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f354c6141c2fc93f0c7dc1931e808ec6104a2153587c2b6832ca7bca2eff3d. 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/USSJ10914048.
date published: 2026-07-08T03:53:27Z

La Cenarentola - Aria Angelina Act II - Nacqui all affanno
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The Magic Flute, KV 620: Act I: "Papagena! Papageno!"
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by artist: Susanne Leitz
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100 Must-Have Opera Spectaculars
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Most Beautiful Opera Arias
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2014 Sochi Winter Olympics Opening Ceremony Highlights
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