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genre: opera
description: thumb|Langdon as Baron Ochs in Der Rosenkavalier|alt=clean shaven white man, heavily padded to look fat, in 18th-century wig and costume Michael Langdon CBE (born Frank Birtles; 12 November 192012 Mar
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album: Wagner: Siegfried, WWV 86C (Live)
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album: Puccini: Tosca (Live)
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album: Verdi: Don Carlos (Live Recordings 1958)
  type: MusicAlbum
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album: Saul & David
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album: Verdi: Otello (Live Recordings 1955)
  type: MusicAlbum
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album: Wagner: Parsifal (Recorded Live 1971)
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album: Wagner: Das Rheingold, WWV 86A (Live)
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album: Verdi: Un ballo in maschera (Live)
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      date published: 2026-07-08T03:20:19Z
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  track: Semiramide / Act 1: Mitrane! E che rechi?
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      date published: 2026-07-08T03:53:27Z
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  track: Semiramide / Act 1: Alle più calde immagini
  track: Semiramide / Act 1: Marcia
  track: Semiramide / Act 2: Su, ti scuoti
  track: Semiramide / Act 1: Eccomi al fine in Babilonia
  track: Semiramide / Act 1: Ergi omai la fronte altera
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  track: Semiramide / Act 1: Io t'attendeva, Arsace
  track: Semiramide / Act 1: L'alto eroe
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  track: Semiramide / Act 1: D'un semidio che adoro
  track: Semiramide / Act 1: Ah! Sconvolta nell'ordine eterno
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  track: Semiramide / Act 2: Ninia! ferisci!
album: Verdi: La traviata
album: Verdi: Falstaff; Cimarosa: Il maestro di Cappella – Excerpts (Opera Gala – Volume 14)
album: Holst: The Wandering Scholar, Ballet from The Perfect Fool & Egdon Heath
album: Holst: The Hymn of Jesus, Choral Symphony, The Wandering Scholar & At the Boat's Head
album: Holst: The Collector's Edition
album: Music for spring
album: The Spring: Classical
album: Verdi: Aida
album: Britten conducts Britten: Opera Vol.1
album: Puccini: Madama Butterfly (Live)
album: Puccini: Tosca
album: Hadyn: The Seasons
album: Mozart: Le nozze di Figaro, K. 492 (Remastered)
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album: Tosca
album: The Classical Tradition: Haydn & Mozart
album: Berg: Wozzeck
album: Haydn: The 'London' Symphonies, The Seasons
album: Verdi: Don Carlo
album: Haydn: The Seasons
album: Haydn: The Seasons (The Beecham Collection)
album: Verdi: Falstaff - Scenes
album: Giacomo Puccini : Madame Butterfly (London 1957)
album: Benjamin Britten · Billy Budd
album: Viva l'Opéra, Vol. 8

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  date published: 2026-07-08T03:20:19Z
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Semiramide / Act 1: Mitrane! E che rechi?
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Semiramide / Act 1: Alle più calde immagini
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  date published: 2026-07-02T03:30:09Z
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Semiramide / Act 1: Marcia
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    value: -22.348
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Semiramide / Act 2: Su, ti scuoti
type: MusicRecording
duration: PT4M35S
duration ms: 275400
explicit: false
by artist: Gioachino Rossini
by artist: Marilyn Horne
by artist: Spiro Malas
by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540631
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:11:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba07d0c8b34d06a0af6ca0e68ad138c0a1ff48438b039e231af15d8c7b74a659
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540631
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba07d0c8b34d06a0af6ca0e68ad138c0a1ff48438b039e231af15d8c7b74a659. 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/GBF076540631.
  date published: 2026-07-08T03:53:27Z
audio: Semiramide / Act 2: Su, ti scuoti
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.748
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.393
  additional property: Energy
    type: PropertyValue
    value: 0.236
  additional property: Speechiness
    type: PropertyValue
    value: 0.087
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.097
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.045
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Semiramide / Act 1: Eccomi al fine in Babilonia
type: MusicRecording
duration: PT4M48S
duration ms: 288933
explicit: false
by artist: Gioachino Rossini
by artist: Marilyn Horne
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540608
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:36:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56802c9349c3b8ef6a97f3953df3d3833a0fda6b4e10c0c927a802872f624b25
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540608
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56802c9349c3b8ef6a97f3953df3d3833a0fda6b4e10c0c927a802872f624b25. 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/GBF076540608.
  date published: 2026-07-08T03:53:27Z
audio: Semiramide / Act 1: Eccomi al fine in Babilonia
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.588
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.277
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.506
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.055
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.537
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Semiramide / Act 1: Ergi omai la fronte altera
type: MusicRecording
duration: PT1M4S
duration ms: 64293
explicit: false
by artist: Gioachino Rossini
by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540619
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:47:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x859d525d8c2b16842b6cef5d9f52dfbf9588e996ed4af73016d607e69c1dd64e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540619
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859d525d8c2b16842b6cef5d9f52dfbf9588e996ed4af73016d607e69c1dd64e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBF076540619.
  date published: 2026-07-08T03:22:41Z
audio: Semiramide / Act 1: Ergi omai la fronte altera
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 146.239
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.398
  additional property: Energy
    type: PropertyValue
    value: 0.317
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.661
  additional property: Liveness
    type: PropertyValue
    value: 0.381
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.624
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.92
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Semiramide / Act 2: No: non ti lascio
type: MusicRecording
duration: PT3M29S
duration ms: 209800
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: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540632
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:06:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98ae132e3d75d2dc3ac5b26715417c2fe9d0b76dd764d2a0bfb95768ec9934cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540632
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ae132e3d75d2dc3ac5b26715417c2fe9d0b76dd764d2a0bfb95768ec9934cb. 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/GBF076540632.
  date published: 2026-07-08T08:56:20Z
audio: Semiramide / Act 2: No: non ti lascio
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.292
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.071
  additional property: Speechiness
    type: PropertyValue
    value: 0.131
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.392
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.117
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.546
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Semiramide / Act 1: Io t'attendeva, Arsace
type: MusicRecording
duration: PT3M57S
duration ms: 237333
explicit: false
by artist: Gioachino Rossini
by artist: Marilyn Horne
by artist: Spiro Malas
by artist: Joseph Rouleau
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540610
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:20:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0335b8aa366594033372396287afd2e409de72eed5fb140215925705f7dde3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/GBF076540610
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0335b8aa366594033372396287afd2e409de72eed5fb140215925705f7dde3c. 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/GBF076540610.
  date published: 2026-07-08T03:20:19Z
audio: Semiramide / Act 1: Io t'attendeva, Arsace
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.814
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.423
  additional property: Energy
    type: PropertyValue
    value: 0.169
  additional property: Speechiness
    type: PropertyValue
    value: 0.166
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.311
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.302
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Semiramide / Act 1: L'alto eroe
type: MusicRecording
duration: PT4M32S
duration ms: 272160
explicit: false
by artist: Gioachino Rossini
by artist: Dame Joan Sutherland
by artist: Joseph Rouleau
by artist: John Serge
by artist: Marilyn Horne
by artist: Spiro Malas
by artist: Patricia Clarke
by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
in album: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540621
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:32:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1dfa309fac20ca5439688f1928e00da01b20d8bb4ff46a6a620e2ff322ef5e09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
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/GBF076540621
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dfa309fac20ca5439688f1928e00da01b20d8bb4ff46a6a620e2ff322ef5e09. 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/GBF076540621.
  date published: 2026-07-08T03:20:19Z
audio: Semiramide / Act 1: L'alto eroe
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.07
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.304
  additional property: Energy
    type: PropertyValue
    value: 0.232
  additional property: Speechiness
    type: PropertyValue
    value: 0.175
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.133
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.682
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Semiramide / Act 2: "Giorno d'orrore"
type: MusicRecording
duration: PT5M6S
duration ms: 306466
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: Rossini: Semiramide
  type: MusicAlbum
  date published: 1966-01-01
genre: classical
genre: opera
isrc code: GBF076540634
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T06:00:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7a1a5f717f5d96b501c8e21e613975765f9be8ead9ec37ea245f50999836e8b1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076540634
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1a5f717f5d96b501c8e21e613975765f9be8ead9ec37ea245f50999836e8b1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBF076540634.
  date published: 2026-07-08T03:22:41Z
audio: Semiramide / Act 2: "Giorno d'orrore"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 163.523
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.215
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.061
  additional property: Acousticness
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Semiramide / Act 1: Ah! Sconvolta nell'ordine eterno
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by artist: Gioachino Rossini
by artist: Marilyn Horne
by artist: Spiro Malas
by artist: Dame Joan Sutherland
by artist: John Serge
by artist: Patricia Clarke
by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
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genre: classical
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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: Semiramide / Act 1: Ah! Sconvolta nell'ordine eterno
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Semiramide / Act 2: Il dì già cade
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by artist: Gioachino Rossini
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by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
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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: Semiramide / Act 2: Il dì già cade
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Semiramide / Act 2: Deh! ti ferma
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by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
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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: Semiramide / Act 2: Deh! ti ferma
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Semiramide / Act 2: Ninia! ferisci!
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duration ms: 134640
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by artist: Marilyn Horne
by artist: Dame Joan Sutherland
by artist: Spiro Malas
by artist: Ambrosian Opera Chorus
by artist: London Symphony Orchestra
by artist: Richard Bonynge
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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: 2026-07-08T03:53:27Z
audio: Semiramide / Act 2: Ninia! ferisci!
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Verdi: La traviata
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date published: 2015-02-01

Verdi: Falstaff; Cimarosa: Il maestro di Cappella – Excerpts (Opera Gala – Volume 14)
type: MusicAlbum
date published: 2020-11-13

Holst: The Wandering Scholar, Ballet from The Perfect Fool & Egdon Heath
type: MusicAlbum
date published: 1975-01-01
track: Holst: The Perfect Fool, Op. 39, Ballet Music: I. Andante
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    date published: 1975-01-01
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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
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track: Holst: The Perfect Fool, Op. 39, Ballet Music: III. Dance of Spirits of Water. Allegretto
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  duration: PT2M46S
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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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Holst: The Hymn of Jesus, Choral Symphony, The Wandering Scholar & At the Boat's Head
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date published: 2009-08-28
track: Holst: The Hymn of Jesus, Op. 37: Hymn I. "Glory to Thee, Father!"
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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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Holst: The Collector's Edition
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Music for spring
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The Spring: Classical
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Verdi: Aida
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Britten conducts Britten: Opera Vol.1
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Puccini: Madama Butterfly (Live)
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Puccini: Tosca
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Hadyn: The Seasons
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Britten: Billy Budd/The Holy Sonnets of John Donne etc.
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  by artist: Norman Lumsden
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  audio: Billy Budd, Op. 50 / Act 1: "Pull, My Bantams!"
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Tosca
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track: Puccini: Tosca: Com'e lunga l'attesa! - Tosca, Sciarrone, Spoletta - Act Three
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The Classical Tradition: Haydn & Mozart
type: MusicAlbum
date published: 2011-02-07

Berg: Wozzeck
type: MusicAlbum
date published: 2013-04-26

Haydn: The 'London' Symphonies, The Seasons
type: MusicAlbum
date published: 2013-08-02

Verdi: Don Carlo
type: MusicAlbum
date published: 2014-05-27

Haydn: The Seasons
type: MusicAlbum
date published: 2010-04-04

Haydn: The Seasons (The Beecham Collection)
type: MusicAlbum
date published: 2014-02-01

Verdi: Falstaff - Scenes
type: MusicAlbum
date published: 2015-08-21

Giacomo Puccini : Madame Butterfly (London 1957)
type: MusicAlbum
date published: 2012-06-01

Benjamin Britten · Billy Budd
type: MusicAlbum
date published: 1951

Viva l'Opéra, Vol. 8
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date published: 2015-02-28