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genre: baroque
genre: renaissance
genre: choral
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
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album: A.Scarlatti: St. Cecilia Mass
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album: Schubert: Mass No. 5
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album: Bach, JS/Bach, CPE: Magnificats/Scarlatti: Messa di Santa Cecilia
  type: MusicAlbum
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album: The Best of Plácido Domingo
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  track: Rigoletto: Act IV: La donna è mobile
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-02T03:55:08Z
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  track: I Pagliacci: Act I: Recitar! Mentre preso; Vesti la giubba
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      date published: 2026-07-21T16:37:08Z
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  track: Un Uomo tra la Folla
  track: Rigoletto: Act III: Ella mi fu rapita! ... Parmi veder le lagrime
  track: La bohème: Act I: Che gelida manina
  track: West Side Story: Maria
  track: La bohème: O soave fanciulla
  track: Martha: Act III: M'appari tutt'amor
  track: Aida: Act I: Se quel guerrier...Celeste Aida
  track: Lohengrin, WWV 75: Act III: In fernem Land
  track: Il trovatore: Ah, si, ben mio coll'essere
  track: The Magic Flute, K. 620: "Wie stark ist nicht dein Zauberton"
  track: My Life for a Song
  track: Il trovatore: Act III: Scene 2: Di quella pira
  track: Annie's Song (with Plácido Domingo) - Voice
  track: Tosca: Act I: Dammi i colori...Recondita armonia
  track: L'elisir d'amore: Act II: Una furtiva lagrima
  track: Yesterday
  track: Andrea Chenier: Act I: Un di all'azzurro spazio guardi profondo
  track: Perhaps Love
  track: Autumn Leaves
  track: La traviata: Act II: Lunge da lei ... De'miei bollenti spiriti
  track: Manon: Act III: Je suis seul!; Ah! fuyez, douce image
  track: Tosca: Act III: E lucevan le stelle
  track: Faust: Act III: Quel trouble inconnu; Salut! demeure chaste et pure
  track: Mi batte il cor; O Paradiso; Deh! ch'io ritorni
  track: La coscienza
  track: Turandot: Nessun dorma!
  track: Luisa Miller: Act II: The Intrigue: Scene III: Oh! fede negar potessi; Quando le sere al placido
  track: Cavalleria Rusticana: Mamma, mamma! Quel vino è generoso
  track: Don Carlo: Act I: E lui! desso! L'Infante! ... Dio, che nell'alma infondere
  track: Un Ballo in Maschera: Act I: Di' tu se fedele il flutto m'aspetta (Barcarola)
album: Plácido Domingo - The Album Collection
album: Plácido Domingo - The Verdi Tenor - Sony Classical Masters
album: Monteverdi: The Madrigals, Books 3,4,7,8 & 9
album: Early Domingo
album: Vaughan Williams: The Pilgrim's Progress
album: The Young Domingo
album: Anthology of English Song
album: Plácido Domingo: La voce d'oro
album: Plácido Domingo - Arias

Un Ballo in Maschera: Act I: Di' tu se fedele il flutto m'aspetta (Barcarola)
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by artist: Wendy Eathorne
by artist: Brian Etheridge
by artist: Franklyn Whiteley
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popularity: 7
genre: classical
genre: opera
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  date published: 2026-07-29T13:09:35Z
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Un Uomo tra la Folla
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Rigoletto: Act III: Ella mi fu rapita! ... Parmi veder le lagrime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
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La bohème: Act I: Che gelida manina
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T11:34:59Z
audio: La bohème: Act I: Che gelida manina
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West Side Story: Maria
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T14:04:01Z
audio: West Side Story: Maria
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La bohème: O soave fanciulla
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: La bohème: O soave fanciulla
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Martha: Act III: M'appari tutt'amor
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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: Martha: Act III: M'appari tutt'amor
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Aida: Act I: Se quel guerrier...Celeste Aida
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T07:53:57Z
audio: Aida: Act I: Se quel guerrier...Celeste Aida
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Lohengrin, WWV 75: Act III: In fernem Land
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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: Lohengrin, WWV 75: Act III: In fernem Land
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Il trovatore: Ah, si, ben mio coll'essere
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The Magic Flute, K. 620: "Wie stark ist nicht dein Zauberton"
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genre: classical
genre: classical-era
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM18500643
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 0x2391200f3b75085a438b89758a09048bed87fc5a10632bedfad4df2c8d31317e. 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/USSM18500643.
  date published: 2026-07-08T03:53:27Z
audio: The Magic Flute, K. 620: "Wie stark ist nicht dein Zauberton"
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  additional property: Mode (Major/Minor)
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My Life for a Song
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duration: PT3M1S
duration ms: 181826
explicit: false
by artist: Lee Holdridge
by artist: Plácido Domingo
in album: The Best of Plácido Domingo
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  date published: 2016-01-15
popularity: 4
isrc code: USSM18200258
additional property: CopyrightID
additional property: CopyrightStatus
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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/USSM18200258
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c23c423869a9379cd3a5557bd59039e7fabbfe7a7099c02871ac6485196631. 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/USSM18200258.
  date published: 2026-07-08T08:56:20Z
audio: My Life for a Song
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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Il trovatore: Act III: Scene 2: Di quella pira
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duration: PT3M17S
duration ms: 197920
explicit: false
by artist: Giuseppe Verdi
by artist: Plácido Domingo
by artist: Zubin Mehta
in album: The Best of Plácido Domingo
  type: MusicAlbum
  date published: 2016-01-15
popularity: 8
genre: classical
genre: opera
isrc code: USBC16900179
additional property: CopyrightID
additional property: CopyrightStatus
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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/USBC16900179
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6c53b71b194d197b2982651a68cbad260c03b391a92432e0e9b4df40b66702. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USBC16900179.
  date published: 2026-07-07T20:41:57Z
audio: Il trovatore: Act III: Scene 2: Di quella pira
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  additional property: Mode (Major/Minor)
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Annie's Song (with Plácido Domingo) - Voice
type: MusicRecording
duration: PT3M7S
duration ms: 187480
explicit: false
by artist: John Denver
by artist: Plácido Domingo
by artist: Lee Holdridge
in album: The Best of Plácido Domingo
  type: MusicAlbum
  date published: 2016-01-15
popularity: 13
isrc code: USSM18100830
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca200f6aaf170f791ff4ae887dea50af6fd0ff2e5712a031e1f11efcc965600. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USSM18100830.
  date published: 2026-07-02T03:55:08Z
audio: Annie's Song (with Plácido Domingo) - Voice
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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Tosca: Act I: Dammi i colori...Recondita armonia
type: MusicRecording
duration: PT3M7S
duration ms: 187800
explicit: false
by artist: Giacomo Puccini
by artist: Plácido Domingo
by artist: Paul Plishka
by artist: Zubin Mehta
in album: The Best of Plácido Domingo
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  date published: 2016-01-15
popularity: 8
isrc code: USBC17200102
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/USBC17200102
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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d6c36828af0e65905f84a6ff4df08bbba1564f67d77fb328fd254d2f0a36323. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USBC17200102.
  date published: 2026-07-07T18:39:05Z
audio: Tosca: Act I: Dammi i colori...Recondita armonia
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  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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L'elisir d'amore: Act II: Una furtiva lagrima
type: MusicRecording
duration: PT4M58S
duration ms: 298146
explicit: false
by artist: Gaetano Donizetti
by artist: Plácido Domingo
by artist: London Symphony Orchestra
by artist: Nello Santi
in album: The Best of Plácido Domingo
  type: MusicAlbum
  date published: 2016-01-15
popularity: 6
genre: opera
isrc code: USBC17100103
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
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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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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe959422052fc301e1f905cde5c5517d5e084f89fa14d0a9bf73db2242947059. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USBC17100103.
  date published: 2026-07-07T18:50:38Z
audio: L'elisir d'amore: Act II: Una furtiva lagrima
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Yesterday
type: MusicRecording
duration: PT2M46S
duration ms: 166253
explicit: false
by artist: John Lennon
by artist: Paul McCartney
by artist: Plácido Domingo
by artist: Lee Holdridge
in album: The Best of Plácido Domingo
  type: MusicAlbum
  date published: 2016-01-15
popularity: 7
genre: christmas
isrc code: USSM18100852
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
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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: Yesterday
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Andrea Chenier: Act I: Un di all'azzurro spazio guardi profondo
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duration: PT4M26S
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by artist: Umberto Giordano
by artist: Plácido Domingo
by artist: James Levine
in album: The Best of Plácido Domingo
  type: MusicAlbum
  date published: 2016-01-15
popularity: 4
genre: opera
isrc code: USBC17600166
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: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Andrea Chenier: Act I: Un di all'azzurro spazio guardi profondo
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Perhaps Love
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:30:09Z
audio: Perhaps Love
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Autumn Leaves
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Autumn Leaves
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La traviata: Act II: Lunge da lei ... De'miei bollenti spiriti
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T16:07:00Z
audio: La traviata: Act II: Lunge da lei ... De'miei bollenti spiriti
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Manon: Act III: Je suis seul!; Ah! fuyez, douce image
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additional property: OTSVerificationAPI
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Manon: Act III: Je suis seul!; Ah! fuyez, douce image
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Tosca: Act III: E lucevan le stelle
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Tosca: Act III: E lucevan le stelle
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Faust: Act III: Quel trouble inconnu; Salut! demeure chaste et pure
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Mi batte il cor; O Paradiso; Deh! ch'io ritorni
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Mi batte il cor; O Paradiso; Deh! ch'io ritorni
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La coscienza
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by artist: London Symphony Orchestra
by artist: Nick Ingman
by artist: Tom Ranier
by artist: Jorge Calandrelli
by artist: George Doering
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by artist: Gregg Field
by artist: Gregg Bissonette
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by artist: Bruce Dukov
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by artist: Gary Foster
by artist: Rebecca Gilliver
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popularity: 4
genre: classical
genre: opera
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: La coscienza
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Turandot: Nessun dorma!
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by artist: Luis Cobos
by artist: Royal Philharmonic Orchestra
by artist: Covent Garden Opera Chorus
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popularity: 10
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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: Turandot: Nessun dorma!
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Luisa Miller: Act II: The Intrigue: Scene III: Oh! fede negar potessi; Quando le sere al placido
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by artist: Royal Philharmonic Orchestra
by artist: Sir Edward Downes
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genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Luisa Miller: Act II: The Intrigue: Scene III: Oh! fede negar potessi; Quando le sere al placido
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Cavalleria Rusticana: Mamma, mamma! Quel vino è generoso
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Cavalleria Rusticana: Mamma, mamma! Quel vino è generoso
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Don Carlo: Act I: E lui! desso! L'Infante! ... Dio, che nell'alma infondere
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popularity: 5
genre: classical
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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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Plácido Domingo - The Album Collection
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Plácido Domingo - The Verdi Tenor - Sony Classical Masters
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    date published: 2026-07-08T03:20:19Z
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track: Rigoletto: Act IV: La donna è mobile
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  audio: Rigoletto: Act IV: La donna è mobile
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