Teresa Berganza
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genre: opera
description: Teresa Berganza Vargas OAXS (16 March 1933 – 13 May 2022) was a Spanish mezzo-soprano. She is most closely associated with roles such as Rossini's Rosina and La Cenerentola, and later Bizet's Carmen,
popularity: 32
followers: 20310
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album: El sombrero de tres picos
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album: Purcell: Dido and Aeneas, Z. 626 (Live)
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album: Alcina
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  date published: 2000-01-01
album: Manuel de Falla: Noches en los jardines de España, El sombrero de tres picos & La vida breve (interludio y danza No. 1)
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  date published: 2012-09-01
album: Clásicos Inolvidables Vol. 31, Zarzuela
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  date published: 2015-08-12
album: Luna (Canciones, Romanzas Y Danzas)
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  track: Luna: 5. Jaleo
  track: Luna: 8. Un Gitano Sin Su Honor
  track: Luna: 9. Epílogo
album: Mozart: La finta semplice, K. 51
album: The Glories of Handel Opera
album: Il Barbiere di Siviglia - Berganza-Bruscantini-Bartoletti - Teatro Colón 1969 (Live)
album: Mozart: Le nozze di Figaro, K. 492
album: Best of Teresa Berganza
album: Ravel: Mélodies
album: Mozart: Le nozze di Figaro, K. 492 (Remastered)
album: Una voce poco fa - A Portrait of Teresa Berganza
album: Antón garcía abril: Canciones Xacobeas
album: Mozart: Così fan tutte, K. 588 (Recorded 1957)
album: Rossini: L'Italiana in Algeri
album: Les grandes mezzo-sopranos de la musique classique : Teresa Berganza, Vol. 1 (Airs et mélodies du 18ème siècle)
album: Teresa Berganza Canta a Rossini
album: Brava Berganza
album: Offenbach: La Périchole
album: Festival Manuel de Falla, Orchestre National de la RTF - A. Argenta (dir)
album: Teresa Berganza: Essentials
album: Abril, Falla & Weber: Works (Remastered 2024) [Live]
album: Falla: El Amor Brujo, El Sombrero de Tres Picos by Ernest Ansermet (Remastered 2023, Geneva 1955)
album: Falla: Le Tricorne: Bizet: L'arlesienne Suite
album: Singers of the Century: Teresa Berganza – Aria and Song Recital (2019 Remaster)
album: Les grandes mezzo-sopranos de la musique classique : Teresa Berganza, Vol. 2 (Folklore basque et espagnol)
album: Rossini: La Cenerentola
album: Un concierto de "Género Chico" - Teresa Berganza
album: Romanzas y Dúos de Zarzuelas
album: Manuel de Falla: El Sombrero de Tres Picos [The Three Cornered Hat] (1961)
album: Zarzuela Recital: Teresa Berganza
album: Zarzuela Castiza
album: Vivaldi: Nisi Dominus - Due motteti
album: Teresa Berganza con Felix Lavilla al Piano. 8 Canciones Españolas y 7 Canciones Italianas
album: Paginas Castizas en la Zarzuela
album: Concierto de Genero Chico
album: Teresa Berganza: Recital de Canciones
album: Handel: Alcina
album: The Art of Teresa Berganza
album: Teresa Berganza: An Evening of Song (Schwetzinger Festspiele Edition, 1985)
album: Teresa Berganza - Canciones Españolas
album: The Three Cornered Hat
track: Vivaldi: Magnificat in G Minor, RV 611: XI. Gloria
track: Le Nozze di Figaro K492 (1990 Digital Remaster), ACT 2: Voi che sapete (Cherubino)
track: Orfeo ed Euridice, Wq. 30 / Act III: "Che farò senza Euridice?"
track: Magnificat in G Minor, RV. 611: Magnificat
track: Che faro (What is life?) (Orfeo ed Euridice)
track: Domine Deus
track: Il barbiere di Siviglia / Act 1: "Una voce poco fa"

El Barberillo de Lavapies (Canción de Paloma)
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Vivaldi: Magnificat in G Minor, RV 611: XI. Gloria
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Giulio Cesare / Act 3: Da tempeste il legno infranto
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-02T03:30:09Z
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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Best of Teresa Berganza
type: MusicAlbum
date published: 2020-03-14

Ravel: Mélodies
type: MusicAlbum
date published: 1984-01-01
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  by artist: Michel Plasson
  by artist: Orchestre Du Capitole De Toulouse
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    date published: 1984-01-01
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
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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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    date published: 2026-07-08T03:53:27Z
  audio: Ravel: Shéhérazade, M. 41: No. 1, Asie
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  by artist: Maurice Ravel
  by artist: Teresa Berganza
  by artist: Dalton Baldwin
  in album: Ravel: Mélodies
    type: MusicAlbum
    date published: 1984-01-01
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Ravel: Chants populaires, M. A 17: No. 1, Chanson espagnole
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  explicit: false
  by artist: Maurice Ravel
  by artist: Gabriel Bacquier
  by artist: Dalton Baldwin
  in album: Ravel: Mélodies
    type: MusicAlbum
    date published: 1984-01-01
  genre: classical
  genre: impressionism
  genre: neoclassicism
  genre: post-romantic-era
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  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
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track: Ravel: Histoires naturelles, M. 50: No. 2, Le grillon
track: Ravel: 5 Mélodies populaires grecques: No. 2, Là-bas, vers l'église, M. A 10
track: Ravel: Ballade de la reine morte d'aimer, M. 4
track: Ravel: Sainte, M. 9
track: Ravel: 2 Mélodies hébraïques, M. A 22: No. 1, Kaddish
track: Ravel: 3 Poèmes de Stéphane Mallarmé, M. 64: No. 2, Placet futile

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CopyrightRegisteredAt
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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
type: PropertyValue
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b16f88e7bb409b51ddcd594b4ccadbd29fb61080a99fd542b0e55367f75ce4f. 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/FRZ118100990.
date published: 2026-07-08T03:22:41Z

Ravel: Histoires naturelles, M. 50: No. 1, Le paon
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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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Ravel: Histoires naturelles, M. 50: No. 2, Le grillon
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duration: PT3M6S
duration ms: 186933
explicit: false
by artist: Maurice Ravel
by artist: Gabriel Bacquier
by artist: Dalton Baldwin
in album: Ravel: Mélodies
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genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Ravel: Histoires naturelles, M. 50: No. 2, Le grillon
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Ravel: 5 Mélodies populaires grecques: No. 2, Là-bas, vers l'église, M. A 10
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by artist: Mady Mesplé
by artist: Dalton Baldwin
in album: Ravel: Mélodies
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genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
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additional property: CopyrightStatus
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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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  date published: 2026-07-08T08:56:20Z
audio: Ravel: 5 Mélodies populaires grecques: No. 2, Là-bas, vers l'église, M. A 10
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by artist: Mady Mesplé
by artist: Dalton Baldwin
in album: Ravel: Mélodies
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genre: classical
genre: impressionism
genre: neoclassicism
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Ravel: Ballade de la reine morte d'aimer, M. 4
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    type: PropertyValue
    value: Minor

Ravel: Sainte, M. 9
type: MusicRecording
duration: PT2M19S
duration ms: 139840
explicit: false
by artist: Maurice Ravel
by artist: José van Dam
by artist: Dalton Baldwin
in album: Ravel: Mélodies
  type: MusicAlbum
  date published: 1984-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: FRZ118101090
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T11:47:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ea0e34c6df0fe502c03c335e40bfc945c8c16191943a27b6060d3f05267662b
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/FRZ118101090
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 0x9ea0e34c6df0fe502c03c335e40bfc945c8c16191943a27b6060d3f05267662b. 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/FRZ118101090.
  date published: 2026-07-08T08:56:20Z
audio: Ravel: Sainte, M. 9
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.896
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.283
  additional property: Energy
    type: PropertyValue
    value: 0.102
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.103
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.897
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Ravel: 2 Mélodies hébraïques, M. A 22: No. 1, Kaddish
type: MusicRecording
duration: PT4M53S
duration ms: 293906
explicit: false
by artist: Maurice Ravel
by artist: José van Dam
by artist: Dalton Baldwin
in album: Ravel: Mélodies
  type: MusicAlbum
  date published: 1984-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: FRZ118101140
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:02:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb21d8386eb7cc77da71eb9ad356e17207ecb7a8ac63d886460cebe60a32b7279
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/FRZ118101140
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 0xb21d8386eb7cc77da71eb9ad356e17207ecb7a8ac63d886460cebe60a32b7279. 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/FRZ118101140.
  date published: 2026-07-08T08:56:20Z
audio: Ravel: 2 Mélodies hébraïques, M. A 22: No. 1, Kaddish
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.025
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.19
  additional property: Energy
    type: PropertyValue
    value: 0.199
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.995
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.114
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.107
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.504
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Ravel: 3 Poèmes de Stéphane Mallarmé, M. 64: No. 2, Placet futile
type: MusicRecording
duration: PT4M37S
duration ms: 277373
explicit: false
by artist: Maurice Ravel
by artist: Felicity Lott
by artist: Orchestre de Paris
by artist: Michel Plasson
in album: Ravel: Mélodies
  type: MusicAlbum
  date published: 1984-01-01
genre: classical
genre: impressionism
genre: neoclassicism
genre: post-romantic-era
isrc code: FRZ118301270
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:27:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ea452d918e0190de20046d3f65ab3a69408eb7de22e8a9c56f81d8081b37bd1
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/FRZ118301270
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 0x4ea452d918e0190de20046d3f65ab3a69408eb7de22e8a9c56f81d8081b37bd1. 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/FRZ118301270.
  date published: 2026-07-08T03:20:19Z
audio: Ravel: 3 Poèmes de Stéphane Mallarmé, M. 64: No. 2, Placet futile
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.992
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.137
  additional property: Energy
    type: PropertyValue
    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.569
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Mozart: Le nozze di Figaro, K. 492 (Remastered)
type: MusicAlbum
date published: 2023-10-26
track: Mozart: Le nozze di Figaro, K. 492: Sinfonia
  type: MusicRecording
  duration: PT5M14S
  duration ms: 314040
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Otto Klemperer
  by artist: New Philharmonia Orchestra
  in album: Mozart: Le nozze di Figaro, K. 492 (Remastered)
    type: MusicAlbum
    date published: 2023-10-26
  genre: classical
  genre: classical-era
  isrc code: GBAYC2300673
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T23:37:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb26c23fb955d41ca8b4201169685b07c27f4edbac0605ec077c18d8b291baa8d
  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/GBAYC2300673
  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 0xb26c23fb955d41ca8b4201169685b07c27f4edbac0605ec077c18d8b291baa8d. 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/GBAYC2300673.
    date published: 2026-07-08T03:20:19Z
  audio: Mozart: Le nozze di Figaro, K. 492: Sinfonia
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.014
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.369
    additional property: Energy
      type: PropertyValue
      value: 0.194
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.943
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.935
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.264
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.122
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Una voce poco fa - A Portrait of Teresa Berganza
type: MusicAlbum
date published: 2004-01-01
track: Il barbiere di Siviglia / Act 1: "Una voce poco fa"
  type: MusicRecording
  duration: PT6M6S
  duration ms: 366000
  explicit: false
  by artist: Gioachino Rossini
  by artist: Teresa Berganza
  by artist: London Symphony Orchestra
  by artist: Alexander Gibson
  in album: Una voce poco fa - A Portrait of Teresa Berganza
    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: opera
  isrc code: GBF075810590
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T17:07:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa54ab05c133ef13c2d1d6100df694b64878ecf00472fbeb424104858b917ff64
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957075
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957075
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF075810590
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T18:50:38Z
  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 0xa54ab05c133ef13c2d1d6100df694b64878ecf00472fbeb424104858b917ff64. 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/GBF075810590.
    date published: 2026-07-07T18:50:38Z
  audio: Il barbiere di Siviglia / Act 1: "Una voce poco fa"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 112.956
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.379
    additional property: Energy
      type: PropertyValue
      value: 0.109
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.323
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.653
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Così fan tutte, K.588 / Act 1: "Temerari! Sortite!...Come scoglio!"
  type: MusicRecording
  duration: PT5M43S
  duration ms: 343000
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Teresa Berganza
  by artist: London Symphony Orchestra
  by artist: Sir John Pritchard
  in album: Una voce poco fa - A Portrait of Teresa Berganza
    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: classical-era
  isrc code: GBF076211061
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T17:58:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x71794602a27c304aa6dddcc43d0af586d67cb885eda86d86b05b0bae22c3f11c
  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/GBF076211061
  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 0x71794602a27c304aa6dddcc43d0af586d67cb885eda86d86b05b0bae22c3f11c. 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/GBF076211061.
    date published: 2026-07-08T03:20:19Z
  audio: Così fan tutte, K.588 / Act 1: "Temerari! Sortite!...Come scoglio!"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.065
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.311
    additional property: Energy
      type: PropertyValue
      value: 0.148
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.967
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.069
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.178
    additional property: Loudness (dB)
      type: PropertyValue
      value: -20.475
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Orfeo ed Euridice, Wq. 30 / Act III: "Che farò senza Euridice?"
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231000
  explicit: false
  by artist: Christoph Willibald Gluck
  by artist: Teresa Berganza
  by artist: Orchestra of the Royal Opera House, Covent Garden
  by artist: Alexander Gibson
  in album: Una voce poco fa - A Portrait of Teresa Berganza
    type: MusicAlbum
    date published: 2004-01-01
  genre: classical
  genre: opera
  isrc code: GBF076010210
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  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: Orfeo ed Euridice, Wq. 30 / Act III: "Che farò senza Euridice?"

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-07T14:16:30+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xd0af32736089d2ffa52fb9d59c589e1de1ebd386cf491190be0cd9b6a24e17a7

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957118

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957118

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF076010210

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:20:19Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
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La Italiana En Argelia: "Acto II: Amici in Ogni Evento... Pensa Alla Patria" - Remastered
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  genre: italian-opera
  genre: early-music
  genre: baroque
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:20:19Z
  audio: Se Florindo è fedele (from "La donna ancora è fedele")
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type: MusicAlbum
date published: 2025-01-08
track: Offenbach: La Périchole, Act 1: Chœur. "C'est lui ! C'est notre vice-roi" - Couplets de l'incognito. "Sans en souffler mot à personne" (Chœur, Don Andrès)
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  by artist: Michel Plasson
  by artist: Choeur Du Capitole De Toulouse
  by artist: Gabriel Bacquier
  by artist: Orchestre Du Capitole De Toulouse
  in album: Offenbach: La Périchole
    type: MusicAlbum
    date published: 2025-01-08
  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
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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 0x1e14b6a827fead197f36324d05933de1b4ee6ed6b5f655bc18c62f3c804b7eac. 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/FRZ118100680.
    date published: 2026-07-08T08:56:20Z
  audio: Offenbach: La Périchole, Act 1: Chœur. "C'est lui ! C'est notre vice-roi" - Couplets de l'incognito. "Sans en souffler mot à personne" (Chœur, Don Andrès)
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track: Offenbach: La Périchole, Act 1: Complainte de l'Espagnol et de la jeune Indienne. "Le conquérant dit à la jeune Indienne" (La Périchole, Piquillo)
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  by artist: Michel Plasson
  by artist: José Carreras
  by artist: Teresa Berganza
  by artist: Orchestre Du Capitole De Toulouse
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  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
  audio: Offenbach: La Périchole, Act 1: Complainte de l'Espagnol et de la jeune Indienne. "Le conquérant dit à la jeune Indienne" (La Périchole, Piquillo)
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track: Offenbach: La Périchole, Act 2: Cancan-couplets. "On vante partout son sourire" (Manuelita, Frasquinella, Piquillo, Chœur)
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  by artist: Michel Plasson
  by artist: Choeur Du Capitole De Toulouse
  by artist: José Carreras
  by artist: Michele Command
  by artist: Pierrette Delange
  by artist: Orchestre Du Capitole De Toulouse
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  genre: classical
  genre: german-romanticism
  genre: late-romantic-era
  genre: french-opera
  genre: french-romanticism
  genre: operetta
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Offenbach: La Périchole, Act 2: Cancan-couplets. "On vante partout son sourire" (Manuelita, Frasquinella, Piquillo, Chœur)
track: Offenbach: La Périchole, Act 2: Chœur des courtisans. "Quel marché de bassesse !" (Chœur, Piquillo, Panatellas, Don Pedro)
track: Offenbach: La Périchole, Act 3: Trio. "Je suis le joli geôlier" - Dialogue. "Savez-vous ce que c'est que ça ?" (Don Andrès, Piquillo, La Périchole)
track: Offenbach: La Périchole, Act 3: Trio. "Roi pas plus haut qu'une botte !" (Piquillo, Don Andrès, La Périchole)
track: Offenbach: La Périchole, Act 3: Dialogue. "Tais-toi !" (La Périchole, Piquillo, Le Vieux Prisonnier)
track: Offenbach: La Périchole, Act 3: Dialogue. "Que se passe-t-il donc ?" (Mastrilla, Berginella, Guadalena, Piquillo)

Michele Command
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Pierrette Delange
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Orchestre Du Capitole De Toulouse
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Offenbach: La Périchole
type: MusicAlbum
date published: 2025-01-08

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OTSHash
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OTSBitcoinBlock
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OTSBitcoinBlockVerifyURL
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351b800a78516fe4b425c473b933c06c7e37084b7dd198b7a5151cd02940e440. 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/FRZ118100770.
date published: 2026-07-08T08:56:20Z

Offenbach: La Périchole, Act 2: Cancan-couplets. "On vante partout son sourire" (Manuelita, Frasquinella, Piquillo, Chœur)
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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: Liveness
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additional property: Valence (Positivity)
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Offenbach: La Périchole, Act 2: Chœur des courtisans. "Quel marché de bassesse !" (Chœur, Piquillo, Panatellas, Don Pedro)
type: MusicRecording
duration: PT1M27S
duration ms: 87266
explicit: false
by artist: Jacques Offenbach
by artist: Michel Plasson
by artist: Choeur Du Capitole De Toulouse
by artist: José Carreras
by artist: Michel Sénéchal
by artist: Michel Trempont
by artist: Orchestre Du Capitole De Toulouse
in album: Offenbach: La Périchole
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  date published: 2025-01-08
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba46a6d55d90421059a3299ee42f3259d6a1e66f74ce7c38f5128dc392988a2. 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/FRZ118100780.
  date published: 2026-07-08T03:20:19Z
audio: Offenbach: La Périchole, Act 2: Chœur des courtisans. "Quel marché de bassesse !" (Chœur, Piquillo, Panatellas, Don Pedro)
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Offenbach: La Périchole, Act 3: Trio. "Je suis le joli geôlier" - Dialogue. "Savez-vous ce que c'est que ça ?" (Don Andrès, Piquillo, La Périchole)
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duration: PT3M23S
duration ms: 203200
explicit: false
by artist: Jacques Offenbach
by artist: Michel Plasson
by artist: Gabriel Bacquier
by artist: José Carreras
by artist: Teresa Berganza
by artist: Orchestre Du Capitole De Toulouse
in album: Offenbach: La Périchole
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  date published: 2025-01-08
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: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
audio: Offenbach: La Périchole, Act 3: Trio. "Je suis le joli geôlier" - Dialogue. "Savez-vous ce que c'est que ça ?" (Don Andrès, Piquillo, La Périchole)
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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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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Festival Manuel de Falla, Orchestre National de la RTF - A. Argenta (dir)
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Teresa Berganza: Essentials
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    date published: 2026-07-08T03:22:41Z
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OpenTimestamps Proof of Existence
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Se tu m'ami, se sospiri (Arr. by Alessandro Parisotti)
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Abril, Falla & Weber: Works (Remastered 2024) [Live]
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Falla: El Amor Brujo, El Sombrero de Tres Picos by Ernest Ansermet (Remastered 2023, Geneva 1955)
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Falla: Le Tricorne: Bizet: L'arlesienne Suite
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Singers of the Century: Teresa Berganza – Aria and Song Recital (2019 Remaster)
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Les grandes mezzo-sopranos de la musique classique : Teresa Berganza, Vol. 2 (Folklore basque et espagnol)
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Rossini: La Cenerentola
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Un concierto de "Género Chico" - Teresa Berganza
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Romanzas y Dúos de Zarzuelas
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Manuel de Falla: El Sombrero de Tres Picos [The Three Cornered Hat] (1961)
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Zarzuela Recital: Teresa Berganza
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Zarzuela Castiza
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Vivaldi: Nisi Dominus - Due motteti
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Teresa Berganza con Felix Lavilla al Piano. 8 Canciones Españolas y 7 Canciones Italianas
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Paginas Castizas en la Zarzuela
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Concierto de Genero Chico
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Teresa Berganza: Recital de Canciones
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Handel: Alcina
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The Art of Teresa Berganza
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Teresa Berganza: An Evening of Song (Schwetzinger Festspiele Edition, 1985)
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Teresa Berganza - Canciones Españolas
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The Three Cornered Hat
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Orfeo ed Euridice, Wq. 30 / Act III: "Che farò senza Euridice?"
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Magnificat in G Minor, RV. 611: Magnificat
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Che faro (What is life?) (Orfeo ed Euridice)
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Domine Deus
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Il barbiere di Siviglia / Act 1: "Una voce poco fa"
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by artist: Gioachino Rossini
by artist: Teresa Berganza
by artist: London Symphony Orchestra
by artist: Alexander Gibson
in album: 50 Greatest Opera Classics
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  date published: 2012-01-01
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genre: classical
genre: opera
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