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type: MusicGroup
genre: opera
description: Thomas Jamerson is an American baritone who had an active international career as an opera and concert performer from the 1960s through the 1990s. He first drew distinction in the field of opera in 19
popularity: 16
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subject of: OpenTimestamps Proof of Existence
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track: La Traviata: Noi siamo zingarelle
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  by artist: RCA Italiana Opera Chorus
  by artist: Georges Prêtre
  by artist: RCA Italiana Opera Orchestra
  by artist: Thomas Jamerson
  by artist: Harold Enns
  in album: J'aime pas le classique mais ca j'aime bien
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    date published: 2008-12-12
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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track: La Traviata: Act I: Libiamo ne' lieti calici
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  by artist: RCA Italiana Opera Orchestra
  by artist: Fernando Iacopucci
  by artist: Dorothy Krebill
  by artist: Harold Enns
  by artist: Gene Boucher
  by artist: Sherrill Milnes
  by artist: Thomas Jamerson
  by artist: Nancy Stokes
  by artist: Camillo Sforza
  by artist: Franco Ruta
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
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Loudness (dB)
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by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Ich mag keine Klassik, aber das gefällt mir!
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popularity: 7
genre: classical
genre: opera
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T13:25:45Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
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La Traviata: Noi siamo zingarelle
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explicit: false
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by artist: RCA Italiana Opera Chorus
by artist: Georges Prêtre
by artist: RCA Italiana Opera Orchestra
by artist: Thomas Jamerson
by artist: Harold Enns
in album: Ich mag keine Klassik, aber das gefällt mir!
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  date published: 2009-11-06
popularity: 6
genre: classical
genre: opera
isrc code: USBC16700387
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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: 2026-07-06T07:53:57Z
audio: La Traviata: Noi siamo zingarelle
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La Traviata: Act I: Libiamo ne' lieti calici
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by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Je n'aime Pas l'opéra mais ça j'aime bien
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genre: classical
genre: opera
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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La Traviata: Act I: Libiamo ne' lieti calici
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by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
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by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Les Plus Grands Airs De La Musique Classique
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genre: classical
genre: opera
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. 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/USBC16700137.
  date published: 2026-07-08T03:53:27Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 137.853
  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: 0.377
  additional property: Energy
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    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.958
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.242
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.304
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.699
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Traviata: Act I: Libiamo ne' lieti calici
type: MusicRecording
duration: PT3M4S
duration ms: 184493
explicit: false
by artist: Giuseppe Verdi
by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Orchestra
by artist: RCA Italiana Opera Chorus
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Montserrat Caballé Sings Verdi
  type: MusicAlbum
  date published: 2013-08-05
genre: classical
genre: opera
isrc code: USBC16700137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T02:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d
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/USBC16700137
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 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. 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/USBC16700137.
  date published: 2026-07-08T03:22:41Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.951
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.307
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.25
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.235
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Traviata: Act I: Libiamo ne' lieti calici
type: MusicRecording
duration: PT3M4S
duration ms: 184493
explicit: false
by artist: Giuseppe Verdi
by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Montserrat Caballé - The Diva
  type: MusicAlbum
  date published: 2013-05-24
genre: classical
genre: opera
isrc code: USBC16700137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T02:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700137
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 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. 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/USBC16700137.
  date published: 2026-07-08T03:20:19Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.951
  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: 0.294
  additional property: Energy
    type: PropertyValue
    value: 0.179
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.307
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.25
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.235
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Traviata: Act I: Libiamo ne' lieti calici
type: MusicRecording
duration: PT3M4S
duration ms: 184413
explicit: false
by artist: Giuseppe Verdi
by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Je n'aime pas Verdi, mais ça j'aime bien !
  type: MusicAlbum
  date published: 2019-05-17
genre: classical
genre: opera
isrc code: USBC16700137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T02:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957052
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957052
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:50:41Z
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 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USBC16700137.
  date published: 2026-07-07T14:50:41Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 168.215
  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: 0.29
  additional property: Energy
    type: PropertyValue
    value: 0.257
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.225
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.259
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.469
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
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La Traviata: Noi siamo zingarelle
type: MusicRecording
duration: PT2M53S
duration ms: 173720
explicit: false
by artist: Giuseppe Verdi
by artist: RCA Italiana Opera Chorus
by artist: Georges Prêtre
by artist: RCA Italiana Opera Orchestra
by artist: Thomas Jamerson
by artist: Harold Enns
in album: Je n'aime pas le classique, mais ça j'aime bien !
  type: MusicAlbum
  date published: 2010-08-02
genre: classical
genre: opera
isrc code: USBC16700387
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-17T21:37:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fb7fcff2d0620cb061efc0ee344b051a019747bc44daaa88a8c8dede2e82166
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700387
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0x1fb7fcff2d0620cb061efc0ee344b051a019747bc44daaa88a8c8dede2e82166. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USBC16700387.
  date published: 2026-07-02T03:55:08Z
audio: La Traviata: Noi siamo zingarelle
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 131.482
  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: 0.485
  additional property: Energy
    type: PropertyValue
    value: 0.232
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.356
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.457
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Traviata: Act I: Libiamo ne' lieti calici
type: MusicRecording
duration: PT3M5S
duration ms: 185053
explicit: false
by artist: Giuseppe Verdi
by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: Je n'aime pas le classique, mais ça j'aime bien !
  type: MusicAlbum
  date published: 2010-08-02
genre: classical
genre: opera
isrc code: USBC16700137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T02:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d
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/USBC16700137
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 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. 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/USBC16700137.
  date published: 2026-07-07T18:50:38Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.796
  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: 0.353
  additional property: Energy
    type: PropertyValue
    value: 0.281
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.212
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.256
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.612
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Traviata: Act I: Libiamo ne' lieti calici
type: MusicRecording
duration: PT3M4S
duration ms: 184360
explicit: false
by artist: Giuseppe Verdi
by artist: Montserrat Caballé
by artist: Carlo Bergonzi
by artist: Georges Prêtre
by artist: RCA Italiana Opera Chorus
by artist: RCA Italiana Opera Orchestra
by artist: Fernando Iacopucci
by artist: Dorothy Krebill
by artist: Harold Enns
by artist: Gene Boucher
by artist: Sherrill Milnes
by artist: Thomas Jamerson
by artist: Nancy Stokes
by artist: Camillo Sforza
by artist: Franco Ruta
by artist: Flavio Tasin
in album: The Great Carlo Bergonzi
  type: MusicAlbum
  date published: 1959
genre: classical
genre: opera
isrc code: USBC16700137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T02:42:15+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d
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/USBC16700137
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 0x0e81cb54f00b88366ae833c95dc25b73a5bead7ce96c636fb7a2dcfb4c7bce8d. 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/USBC16700137.
  date published: 2026-07-08T03:53:27Z
audio: La Traviata: Act I: Libiamo ne' lieti calici
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 93.86
  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: 0.346
  additional property: Energy
    type: PropertyValue
    value: 0.183
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.348
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.254
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.25
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major