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genre: opera
description: Christiane Eda-Pierre (24 March 1932 – 6 September 2020) was a French coloratura soprano of Martinican origin,Alain Pâris. Dictionnaire des interprètes et de l’interprétation musicale au XX siècle. Éd
popularity: 3
followers: 161
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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album: Berlioz: Béatrice et Bénédict
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  date published: 1979-05-01
album: Hector Berlioz - Romantic Spirit
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album: Berlioz: Benvenuto Cellini
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  date published: 1972-01-01
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    by artist: BBC Symphony Orchestra
    by artist: Sir Colin Davis
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      type: MusicAlbum
      date published: 1972-01-01
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    genre: orchestra
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-30T14:53:07Z
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album: Mozart: Complete Edition Vol.12: Arias, Lieder etc
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  track: Va, dal furor portata, K.21
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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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  track: Conservatevi fedele, K.23
  track: Or che il dover... Tali e cotanti sono, K.36
  track: A Berenice... Sol nascente, K.70
  track: Vorrei spiegarvi, oh Dio, K.418
album: Mozart: Die Entführung aus dem Serail (Complete Mozart Edition)
album: Flower Duet - The World's Most Beautiful Duets
album: Mozart: Complete Edition Box 16: German Operas
album: Beethoven: Missa Solemnis/Mass in C
album: Colin Davis - Beethoven Odyssey
album: Mozart: Arias, Vocal Ensembles & Canons - Vol.2 (Complete Mozart Edition)
album: Inghelbrecht, Requiem, Vezelay

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Conservatevi fedele, K.23
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by artist: Wolfgang Amadeus Mozart
by artist: Hanna Schwarz
by artist: Mozarteum Orchestra Salzburg
by artist: Leopold Hager
in album: Mozart: Complete Edition Vol.12: Arias, Lieder etc
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genre: classical-era
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genre: opera
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T22:27:30Z
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Or che il dover... Tali e cotanti sono, K.36
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  date published: 2000-01-01
genre: classical
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genre: classical-piano
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T17:29:52Z
audio: Or che il dover... Tali e cotanti sono, K.36
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A Berenice... Sol nascente, K.70
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Vorrei spiegarvi, oh Dio, K.418
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104390
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd18412d71bb0000295aa85181e7294dd50a2c91bfbd1885109cbd9a89a59c8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF058104390 — a six-check JSON result.
  date published: 2026-07-06T06:56:49Z
audio: Vorrei spiegarvi, oh Dio, K.418
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  additional property: Musical Key
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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: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Mozart: Die Entführung aus dem Serail (Complete Mozart Edition)
type: MusicAlbum
date published: 1979-01-01
track: Die Entführung aus dem Serail, K.384: Overture
  type: MusicRecording
  duration: PT4M13S
  duration ms: 253000
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  by artist: Wolfgang Amadeus Mozart
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Colin Davis
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    type: MusicAlbum
    date published: 1979-01-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: NLA507804901
  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
    value: https://blockstream.info/api/block-height/960216
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804901
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340f6cf4c08171d0115688918074aea0a73c254b7e2278311c4ce1dfc41bce35. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804901 — a six-check JSON result.
    date published: 2026-07-30T06:39:12Z
  audio: Die Entführung aus dem Serail, K.384: Overture
    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: 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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track: Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
  type: MusicRecording
  duration: PT3M27S
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  by artist: Wolfgang Amadeus Mozart
  by artist: Robert Lloyd
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Colin Davis
  in album: Mozart: Die Entführung aus dem Serail (Complete Mozart Edition)
    type: MusicAlbum
    date published: 1979-01-01
  genre: classical
  genre: classical-era
  genre: classical-piano
  genre: opera
  genre: chamber-music
  genre: concerto
  isrc code: NLA507804935
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804935
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1defad7425a02e55378311149e09e1a1dc362f1c3db175c63b844bcb559a25. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA507804935 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Die Entführung aus dem Serail, K.384 / Act 3: "Ha, wie will ich triumphieren"
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    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: Danceability
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    additional property: Energy
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    additional property: Speechiness
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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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Flower Duet - The World's Most Beautiful Duets
type: MusicAlbum
date published: 2010-01-01
track: Lakmé / Act 1: Viens, Mallika, ... Dôme épais (Flower Duet)
  type: MusicRecording
  duration: PT5M11S
  duration ms: 311453
  explicit: false
  by artist: Léo Delibes
  by artist: Dame Joan Sutherland
  by artist: Jane Berbié
  by artist: Monte-Carlo Philharmonic Orchestra
  by artist: Richard Bonynge
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    type: MusicAlbum
    date published: 2010-01-01
  popularity: 24
  genre: classical
  isrc code: GBF076711260
  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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    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076711260
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76eecc78ad97c71520dff62bd596e24b914d586a86addaad7f117a41f0ae69c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076711260 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Lakmé / Act 1: Viens, Mallika, ... Dôme épais (Flower Duet)
    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: 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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track: Les Contes d'Hoffmann / Act 2: "Belle nuit, ô nuit d'amour"
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  duration: PT4M17S
  duration ms: 257373
  explicit: false
  by artist: Jacques Offenbach
  by artist: Dame Joan Sutherland
  by artist: Huguette Tourangeau
  by artist: Chorus Pro Arte Lausanne Du Brassus
  by artist: Radio Suisse Romande Chorus
  by artist: Orchestre de la Suisse Romande
  by artist: Richard Bonynge
  in album: Flower Duet - The World's Most Beautiful Duets
    type: MusicAlbum
    date published: 2010-01-01
  popularity: 5
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
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  additional property: CopyrightID
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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
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110650
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f31efd0c2bb7e0d4e54cddeb6192001b07c58cebf3c3cb68034c88b9a93c97. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077110650 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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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: 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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track: Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181840
  explicit: false
  by artist: Engelbert Humperdinck
  by artist: Lucia Popp
  by artist: Brigitte Fassbaender
  by artist: Wiener Philharmoniker
  by artist: Sir Georg Solti
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  popularity: 5
  genre: opera
  isrc code: GBF077811640
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  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: Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
track: Semiramide / Act 1: Alle più calde immagini
track: Béatrice et Bénédict / Act 1: "Vous soupirez, madame?" - "Nuit paisible et sereine!"
track: Rodelinda, HWV 19 - Ed. Bonynge / Act 2: "Io t'abbraccio
track: Requiem: IIg. Recordare
track: Norma / Act 2: Mira, O Norma...Si, fino all'ore

Flower Duet - The World's Most Beautiful Duets
type: MusicAlbum
date published: 2010-01-01

CopyrightID
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CopyrightStatus
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CopyrightRegisteredAt
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CopyrightChainExplorerURL
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OTSHash
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OTSBitcoinBlock
type: PropertyValue
value: 960311

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960311

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077811640

OTSTimestamp
type: PropertyValue
value: 2026-07-30T20:45:02Z

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fcf6767de4890707adb72fa60c6f488d098286f9af014769983f729e29f5f63. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077811640 — a six-check JSON result.
date published: 2026-07-30T20:45:02Z

Hänsel und Gretel / Act 2: "Abends will ich schlafen gehn"
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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: 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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Semiramide / Act 1: Alle più calde immagini
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duration: PT4M0S
duration ms: 240280
explicit: false
by artist: Gioachino Rossini
by artist: Dame Joan Sutherland
by artist: Marilyn Horne
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Flower Duet - The World's Most Beautiful Duets
  type: MusicAlbum
  date published: 2010-01-01
popularity: 3
genre: classical
genre: opera
isrc code: GBF076540617
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
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Semiramide / Act 1: Alle più calde immagini
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Béatrice et Bénédict / Act 1: "Vous soupirez, madame?" - "Nuit paisible et sereine!"
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duration: PT11M58S
duration ms: 718906
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by artist: Hector Berlioz
by artist: Helen Watts
by artist: Christiane Eda-Pierre
by artist: London Symphony Orchestra
by artist: Sir Colin Davis
in album: Flower Duet - The World's Most Beautiful Duets
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  date published: 2010-01-01
popularity: 3
genre: classical
genre: orchestra
isrc code: NLA507521014
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
audio: Béatrice et Bénédict / Act 1: "Vous soupirez, madame?" - "Nuit paisible et sereine!"
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Rodelinda, HWV 19 - Ed. Bonynge / Act 2: "Io t'abbraccio
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duration: PT5M49S
duration ms: 349933
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by artist: George Frideric Handel
by artist: Dame Joan Sutherland
by artist: Alicia Nafé
by artist: Welsh National Opera Orchestra
by artist: Richard Bonynge
in album: Flower Duet - The World's Most Beautiful Duets
  type: MusicAlbum
  date published: 2010-01-01
popularity: 4
genre: classical
genre: opera
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
genre: choral
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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/GBF078541722
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9521f556350e0e72b8dbddcffe469e26c87bdec82923d0225e5d9477970ab70. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF078541722 — a six-check JSON result.
  date published: 2026-07-30T20:09:33Z
audio: Rodelinda, HWV 19 - Ed. Bonynge / Act 2: "Io t'abbraccio
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Requiem: IIg. Recordare
type: MusicRecording
duration: PT4M10S
duration ms: 250986
explicit: false
by artist: Giuseppe Verdi
by artist: Dame Joan Sutherland
by artist: Marilyn Horne
by artist: Wiener Philharmoniker
by artist: Sir Georg Solti
in album: Flower Duet - The World's Most Beautiful Duets
  type: MusicAlbum
  date published: 2010-01-01
popularity: 2
genre: classical
genre: opera
isrc code: GBF076741607
additional property: CopyrightID
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bba6a9e1e4615242d08679ea3ed6ff12999152a363bf4faf29b29ad82160110. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076741607 — a six-check JSON result.
  date published: 2026-07-31T15:20:15Z
audio: Requiem: IIg. Recordare
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Norma / Act 2: Mira, O Norma...Si, fino all'ore
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by artist: Dame Joan Sutherland
by artist: Marilyn Horne
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Flower Duet - The World's Most Beautiful Duets
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popularity: 2
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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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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Mozart: Complete Edition Box 16: German Operas
type: MusicAlbum
date published: 2000-01-01

Beethoven: Missa Solemnis/Mass in C
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date published: 1993-04-26

Colin Davis - Beethoven Odyssey
type: MusicAlbum
date published: 2020-12-11

Mozart: Arias, Vocal Ensembles & Canons - Vol.2 (Complete Mozart Edition)
type: MusicAlbum
date published: 2005-01-01

Inghelbrecht, Requiem, Vezelay
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date published: 1966-01-01