Karita Mattila
type: MusicGroup
genre: choral
genre: classical
genre: opera
genre: requiem
description: Karita Marjatta Mattila (born 5 September 1960) is a Finnish operatic soprano. Mattila appears regularly in the major opera houses worldwide, including the Metropolitan Opera, the Royal Opera House i
popularity: 43
followers: 2288
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      date published: 2026-06-13T17:25:41Z
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  track: Requiem, K. 626: VII. Agnus Dei (Compl. Süssmayr and Levin) - Live
  track: Requiem, K. 626: VIII. Communio: Lux aeterna (Adapted Süssmayr) - Live
  track: Grabmusik, K. 42: IV. Aria. Betracht dies Herz und frage mich - Live
  track: Vesperae solennes de confessore, K. 339: V. Laudate Dominum - Live
album: Amadeus
album: 40 Most Beautiful Arias
album: Klassische Musik für den Sommer - Über das Meer
album: The Irresistible Karita Mattila
album: Vocal Recital: Mattila, Karita - Schumann, R. / Brahms, J. / Merikanto, O. / Melartin, E. / Sibelius, J. / Schubert, F. / Dvorak, A.
album: Vocal Recital: Mattila, Karita - Loewe, F. / Lloyd Webber, A. / Leandros, L. / Hollander, F. / Styne, J. / Gershwin, G. (Best of Evergreens)
album: Vocal Recital: Mattila, Karita - Wagner, R. / Dvorak, A. / Verdi, G. / Strauss Ii / Sibelius, J. / Madetoja, L. / Hollander, F. (Karita Live!)
album: Verdi: Don Carlos (Live)
album: Mozart: Don Giovanni
album: Weber: Der Freischütz
album: Mozart: Così fan tutte
album: Beethoven: Symphony No. 9
album: Wagner: Die Meistersinger von Nürnberg
album: The Berlin Years
album: The No. 1 Opera Album 2007
track: GBAYC0502297

Requiem, K. 626: I. Introitus. Requiem aeternam - Live
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  date published: 2026-06-13T15:41:10Z
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Requiem, K. 626: III. Sequentia: b. Tuba mirum (Orch. Süssmayr, Beyer) - Live
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Requiem, K. 626: III. Sequentia: d. Recordare (Orch. Süssmayr, Beyer) - Live
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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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    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.01
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.094
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.105
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Requiem, K. 626: IV. Offertorium: a. Domine Jesu (Orch. Süssmayr, Beyer) - Live
type: MusicRecording
duration: PT3M36S
duration ms: 216000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Sara Mingardo
by artist: Michael Schade
by artist: Bryn Terfel
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:30:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f318796d0f30aa18630e2ee0d4e70e71c6f04dd2bfa33f33f020862a3ce9f36
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930109
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f318796d0f30aa18630e2ee0d4e70e71c6f04dd2bfa33f33f020862a3ce9f36. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEF059930109.
  date published: 2026-06-13T15:41:10Z
audio: Requiem, K. 626: IV. Offertorium: a. Domine Jesu (Orch. Süssmayr, Beyer) - Live
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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
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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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
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.198
  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Requiem, K. 626: VI. Benedictus (Compl. Süssmayr and Levin) - Live
type: MusicRecording
duration: PT5M10S
duration ms: 310000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Sara Mingardo
by artist: Michael Schade
by artist: Bryn Terfel
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930112
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T15:27:06+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xd4f39cffbeb42d33e5c32707a17aae5bd87f3155b9a09674d545f9df8a6202bb
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930112
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
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additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:47:07+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f39cffbeb42d33e5c32707a17aae5bd87f3155b9a09674d545f9df8a6202bb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF059930112.
  date published: 2026-06-13T12:47:07Z
audio: Requiem, K. 626: VI. Benedictus (Compl. Süssmayr and Levin) - Live
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.144
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.759
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Requiem, K. 626: VII. Agnus Dei (Compl. Süssmayr and Levin) - Live
type: MusicRecording
duration: PT3M29S
duration ms: 209000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Sara Mingardo
by artist: Michael Schade
by artist: Bryn Terfel
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T12:11:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5caa21b209cf1c4ca549e7097986926f3bb5dd142de21c98a4583780734dcca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930113
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5caa21b209cf1c4ca549e7097986926f3bb5dd142de21c98a4583780734dcca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEF059930113.
  date published: 2026-06-13T15:41:10Z
audio: Requiem, K. 626: VII. Agnus Dei (Compl. Süssmayr and Levin) - Live
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 124.398
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.171
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.777
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.032
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.608
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
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Requiem, K. 626: VIII. Communio: Lux aeterna (Adapted Süssmayr) - Live
type: MusicRecording
duration: PT5M18S
duration ms: 318000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T04:11:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x82edbaa38d998cf8db776a1bffdf0dc3fcdaa6d10e15f85c15517b7ae8adb197
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930114
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953513
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:47:07+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82edbaa38d998cf8db776a1bffdf0dc3fcdaa6d10e15f85c15517b7ae8adb197. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF059930114.
  date published: 2026-06-13T12:47:07Z
audio: Requiem, K. 626: VIII. Communio: Lux aeterna (Adapted Süssmayr) - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.117
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.207
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt' eine Vilja, ein Waldmägdelein" (Hanna)
type: MusicRecording
duration: PT4M53S
duration ms: 293919
explicit: false
by artist: Franz Lehár
by artist: Karita Mattila
by artist: Yutaka Sado
by artist: London Philharmonic Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 26
genre: opera
isrc code: FRZ200010410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T06:37:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71a1bf2304df1f299572968727b4f8e47a2e132d341bdd701a0f53f27b5420b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ200010410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a1bf2304df1f299572968727b4f8e47a2e132d341bdd701a0f53f27b5420b4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ200010410.
  date published: 2026-06-13T15:41:10Z
audio: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt' eine Vilja, ein Waldmägdelein" (Hanna)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.632
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.303
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.082
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.77
  additional property: Key Name
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  additional property: Mode Name
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Così fan tutte, K.588 / Act 1: "Al fato dan legge" - "La commedia è graziosa"
type: MusicRecording
duration: PT1M57S
duration ms: 117333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720308
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T11:48:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f52619aab2d12045b51629bb49a8d190d7aba5b196d75a196c0ad6f802a88b6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720308
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f52619aab2d12045b51629bb49a8d190d7aba5b196d75a196c0ad6f802a88b6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLA508720308.
  date published: 2026-06-13T17:25:41Z
audio: Così fan tutte, K.588 / Act 1: "Al fato dan legge" - "La commedia è graziosa"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.012
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Così fan tutte, K.588 / Act 1: "Soave sia il vento" - "Non son cattivo" - "Che vita maledetta" - "Madame, ecco la vostra colazione"
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duration: PT5M35S
duration ms: 335573
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: José van Dam
by artist: Elzbieta Szmytka
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
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  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720311
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720311
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
additional property: ProofProfileEvidenceStatus
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  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54c10c89853f7c9110392d1ede914921aa1f3490b2dfe81f1da81b625ad20bb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720311.
  date published: 2026-07-02T03:30:09Z
audio: Così fan tutte, K.588 / Act 1: "Soave sia il vento" - "Non son cattivo" - "Che vita maledetta" - "Madame, ecco la vostra colazione"
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Speechiness
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Acousticness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Requiem, K. 626: III. Sequentia: c. Rex tremendae (Orch. Süssmayr, Beyer) - Live
type: MusicRecording
duration: PT1M44S
duration ms: 104506
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930105
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930105
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa97b18f55846a7b13d61dd4847b4f9b680273ac3fca14607c9a0101b472cfb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEF059930105.
  date published: 2026-06-13T17:25:41Z
audio: Requiem, K. 626: III. Sequentia: c. Rex tremendae (Orch. Süssmayr, Beyer) - Live
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  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Acousticness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Requiem, K. 626: III. Sequentia: e. Confutatis (Orch. Süssmayr, Beyer) - Live
type: MusicRecording
duration: PT2M34S
duration ms: 154000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Claudio Abbado
by artist: Berliner Philharmoniker
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930107
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b86c1e58cb7657bdf2f5fa68468f8b972a2574a4d46f7c3ee2a70540a2234e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF059930107.
  date published: 2026-06-13T12:47:07Z
audio: Requiem, K. 626: III. Sequentia: e. Confutatis (Orch. Süssmayr, Beyer) - Live
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  additional property: Tempo (BPM)
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    type: PropertyValue
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  additional property: Valence (Positivity)
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Requiem, K. 626: III. Sequentia: f. Lacrimosa (Compl. Süssmayr, Orch. Beyer) - Live
type: MusicRecording
duration: PT2M53S
duration ms: 173000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930108
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0x008b937ae6648778a6ad37d877240268431413d3d6584b5a802a5311e50fea75. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEF059930108.
  date published: 2026-06-13T12:47:07Z
audio: Requiem, K. 626: III. Sequentia: f. Lacrimosa (Compl. Süssmayr, Orch. Beyer) - Live
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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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    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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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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Requiem, K. 626: IV. Offertorium: b. Hostias (Orch. Süssmayr, Beyer) - Live
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duration: PT3M48S
duration ms: 228000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930110
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9e30766c4fff264a6c5a37ce0c0111d31cc23a334258ee664a38bab657c5fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEF059930110.
  date published: 2026-06-13T17:25:41Z
audio: Requiem, K. 626: IV. Offertorium: b. Hostias (Orch. Süssmayr, Beyer) - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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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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Requiem, K. 626: V. Sanctus (Compl. Süssmayr and Levin) - Live
type: MusicRecording
duration: PT2M7S
duration ms: 127000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Swedish Radio Choir
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059930111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059930111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0xf73b27c772656636cc2d3dbf74e33eb9666bc7fcedcc0e21d6d36f8557199efa. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEF059930111.
  date published: 2026-06-13T15:41:10Z
audio: Requiem, K. 626: V. Sanctus (Compl. Süssmayr and Levin) - Live
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.757
  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
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  additional property: Mode Name
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Grabmusik, K. 42: IV. Aria. Betracht dies Herz und frage mich - Live
type: MusicRecording
duration: PT4M17S
duration ms: 257000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Rachel Harnisch
by artist: Berliner Philharmoniker
by artist: Claudio Abbado
by artist: Kay Johannsen
in album: Mozart: Requiem
  type: MusicAlbum
  date published: 1999-01-01
genre: classical
genre: classical-era
isrc code: DEF059903120
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF059903120
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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Vesperae solennes de confessore, K. 339: V. Laudate Dominum - Live
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track: Don Giovanni, K.527 / Act 2: "Don Giovanni, a cenar teco m'invitasti"
track: Così fan tutte ossia La scuola degli amanti, K.588 - (L. da Ponte) - Act 1: "Soave sia il vento"
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date published: 2026-06-13T15:41:10Z

Le nozze di Figaro, K.492 - Original version, Vienna 1786 - Act 4: Le Nozze di Figaro, K. 492 - "Contessa, perdona...Ah tutti contenti"
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Piano Concerto No. 22 in E flat, K.482: 3. Allegro - Andante cantabile - Tempo I
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Don Giovanni, K.527 / Act 2: "Don Giovanni, a cenar teco m'invitasti"
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by artist: Wolfgang Amadeus Mozart
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by artist: Thomas Allen
by artist: Simone Alaimo
by artist: Ambrosian Opera Chorus
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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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: 2026-06-13T13:32:09Z
audio: Don Giovanni, K.527 / Act 2: "Don Giovanni, a cenar teco m'invitasti"
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Così fan tutte ossia La scuola degli amanti, K.588 - (L. da Ponte) - Act 1: "Soave sia il vento"
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by artist: Wolfgang Amadeus Mozart
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by artist: Anne Sofie von Otter
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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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: 2026-06-13T15:41:10Z
audio: Così fan tutte ossia La scuola degli amanti, K.588 - (L. da Ponte) - Act 1: "Soave sia il vento"
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Die Zauberflöte, K.620 / Act 2: Die Zauberflote, K. 620 - "Ach ich fuhl's"
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duration: PT4M47S
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by artist: Wolfgang Amadeus Mozart
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by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Die Zauberflöte, K.620 / Act 2: Die Zauberflote, K. 620 - "Ach ich fuhl's"
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Requiem in D Minor, K. 626: I. Introitus. Requiem aeternam
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duration: PT15M15S
duration ms: 915893
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by artist: Wolfgang Amadeus Mozart
by artist: Sylvia McNair
by artist: Academy of St Martin in the Fields Chorus
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Requiem in D Minor, K. 626: I. Introitus. Requiem aeternam
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Concerto for 2 Pianos in E-Flat Major, K. 365: III. Rondo. Allegro moderato
type: MusicRecording
duration: PT6M56S
duration ms: 416773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alfred Brendel
by artist: Imogen Cooper
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
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genre: classical
genre: classical-era
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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: 2026-06-13T15:41:10Z
audio: Concerto for 2 Pianos in E-Flat Major, K. 365: III. Rondo. Allegro moderato
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40 Most Beautiful Arias
type: MusicAlbum
date published: 2008-11-06
track: Puccini: Turandot, Act 3: "Nessun dorma" (Calaf)
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T17:25:41Z
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track: Bizet: Carmen, WD 31, Act 1: "L'amour est un oiseau rebelle" (Carmen, Chorus)
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  subject of: OpenTimestamps Proof of Existence
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track: Saint-Saëns: Samson et Dalila, Op. 47, Act II, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
track: Massenet: Werther, Act 3: "Pourquoi me réveiller"
track: Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca)
track: Rusalka, Op. 114: Song to the Moon
track: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
track: Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
track: Flotow: Martha, Act 3: "Ach so fromm" (Lionel)
track: Puccini: Tosca, Act 2: "Vissi d'arte" (Tosca)
track: Puccini: La bohème, Act 1: "Che gelida manina" (Rodolfo)
track: Puccini: La bohème, Act 1: "Sì. Mi chiamano Mimì" (Mimì, Rodolfo, Schaunard, Colline, Marcello)
track: Puccini: La bohème, Act 1: "O soave fanciulla" (Rodolfo, Mimì)
track: Puccini: Gianni Schicchi, Act 1: "O mio babbino caro" (Lauretta)
track: Catalani: La Wally, Act 1: "Ebben, ne andrò lontana" (Wally)
track: Offenbach: Les contes d'Hoffman, Act 4: Barcarolle - "Belle nuit, ô nuit d'amour" (Giulietta, Niklausse)
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track: Delibes: Lakmé, Act 1: Flower Duet - "Dôme épais le jasmin" (Lakmé, Mallika)
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track: Mozart: Don Giovanni, K. 527, Act 1: "Dalla sua pace" (Don Ottavio)
track: Rossini: Il barbiere di Siviglia, Act 1, No. 5: Una voce poco fa
track: Handel: Rinaldo, HWV 7, Act 2: Aria. "Lascia ch'io pianga" (Almirena)
track: Gluck: Orphée et Eurydice, Act 3: "J'ai perdu mon Eurydice" (Orphée)
track: Verdi: Aïda, Act 1: "Celeste Aïda" (Radames)
track: Mozart: Don Giovanni, Act 2: "Deh vieni alla fenestra" (Don Giovanni)
track: Puccini: La rondine, Act 1: "Chi il bel sogno di Doretta" (Magda)
track: Giordano: Fedora, Act 2: "Amor ti vieta di non amar" (Loris)
track: Lehár: Die lustige Witwe, Act 2: Vilja-Lied. "Es lebt' eine Vilja, ein Waldmägdelein" (Hanna)
track: Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
track: Verdi: Otello, Act 4: "Ave Maria" (Desdemona)
track: Wagner: Tristan und Isolde, Act 3: Liebestod. "Mild und leise wie er lächelt" (Isolde)

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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809370127
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xbce29676b65f9430bf00783d4e4f06961fc007e016cca6d0382581052685fd95. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA809370127.
  date published: 2026-06-13T12:47:07Z
audio: Bizet: Les pêcheurs de perles, Act 1: "Au fond du temple saint" (Nadir, Zurga)
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 165.187
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
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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
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.068
  additional property: Loudness (dB)
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    value: -23.187
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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Mozart: Cosi fan tutte, K. 588, Act 1: "Soave sia il sento" (Fiordiligi, Dorabella, Don Alfonso)
type: MusicRecording
duration: PT3M4S
duration ms: 184640
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Alain Lombard
by artist: Frederica von Stade
by artist: Jules Bastin
by artist: Kiri Te Kanawa
by artist: Orchestre Philharmonique De Strasbourg
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 39
genre: classical
genre: classical-era
isrc code: FRZ207702418
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf01856aa0cf30e139cdf5e6a31b8424a17ba514d09a6fa72c09e1fd8f57e9cca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ207702418
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
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 0xf01856aa0cf30e139cdf5e6a31b8424a17ba514d09a6fa72c09e1fd8f57e9cca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ207702418.
  date published: 2026-06-13T12:47:07Z
audio: Mozart: Cosi fan tutte, K. 588, Act 1: "Soave sia il sento" (Fiordiligi, Dorabella, Don Alfonso)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.557
  additional property: Musical Key
    type: PropertyValue
    value: 4
  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: 0.181
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.148
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.049
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.581
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Saint-Saëns: Samson et Dalila, Op. 47, Act II, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
type: MusicRecording
duration: PT3M17S
duration ms: 197666
explicit: false
by artist: Camille Saint-Saëns
by artist: Sir Colin Davis
by artist: José Cura
by artist: Olga Borodina
by artist: London Symphony Orchestra
by artist: Colin Davis
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 33
genre: classical
genre: late-romantic-era
genre: french-romanticism
isrc code: FRZ209809001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T22:57:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x851395da7e0aaad1b78e791c26949f7a70aca373f437851ea6114596ffffd9c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209809001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x851395da7e0aaad1b78e791c26949f7a70aca373f437851ea6114596ffffd9c6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ209809001.
  date published: 2026-06-13T17:25:41Z
audio: Saint-Saëns: Samson et Dalila, Op. 47, Act II, Scene 3: Air. "Mon cœur s'ouvre à ta voix" (Dalila, Samson)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.177
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.267
  additional property: Energy
    type: PropertyValue
    value: 0.055
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.15
  additional property: Valence (Positivity)
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    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.126
  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
    type: PropertyValue
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Massenet: Werther, Act 3: "Pourquoi me réveiller"
type: MusicRecording
duration: PT2M23S
duration ms: 143599
explicit: false
by artist: Jules Massenet
by artist: Kent Nagano
by artist: Anne Sofie von Otter
by artist: Jerry Hadley
by artist: Orchestre de l'Opéra de Lyon
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 31
genre: classical
isrc code: FRZ209516126
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:46:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd46ad74f8c9f22b5fd1e3088ec343b6f54462ca3c6ca57e9e9aef3080987b4a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209516126
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0xd46ad74f8c9f22b5fd1e3088ec343b6f54462ca3c6ca57e9e9aef3080987b4a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ209516126.
  date published: 2026-06-13T15:41:10Z
audio: Massenet: Werther, Act 3: "Pourquoi me réveiller"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.745
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.233
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.043
  additional property: Liveness
    type: PropertyValue
    value: 0.494
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.052
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.879
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
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Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca)
type: MusicRecording
duration: PT2M20S
duration ms: 140999
explicit: false
by artist: Giuseppe Verdi
by artist: Carlo Rizzi
by artist: Orchestra of Welsh National Opera
by artist: Richard Leech
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 32
genre: classical
genre: opera
isrc code: DEA809360028
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T05:41:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xefbbf9e79ad703f58344ed86017f60483b0ff81dc54e5621fb9a31e46bae5a58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809360028
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0xefbbf9e79ad703f58344ed86017f60483b0ff81dc54e5621fb9a31e46bae5a58. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA809360028.
  date published: 2026-06-13T15:41:10Z
audio: Verdi: Rigoletto, Act 3: "La donna è mobile" (Duca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.79
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.333
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.156
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.696
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
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Rusalka, Op. 114: Song to the Moon
type: MusicRecording
duration: PT5M58S
duration ms: 358760
explicit: false
by artist: Antonín Dvořák
by artist: Lesley Garrett
by artist: Andrew Greenwood
by artist: Philharmonia Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 33
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: GBAJC9700553
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T06:41:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x901f6efcfcf758f1777a78320fa2e88f4a326f1b9aa31b76b77fbb8bf7cb822b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBAJC9700553
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x901f6efcfcf758f1777a78320fa2e88f4a326f1b9aa31b76b77fbb8bf7cb822b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAJC9700553.
  date published: 2026-06-13T17:25:41Z
audio: Rusalka, Op. 114: Song to the Moon
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.891
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.246
  additional property: Energy
    type: PropertyValue
    value: 0.129
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
    value: 0.077
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.939
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
type: MusicRecording
duration: PT4M29S
duration ms: 269986
explicit: false
by artist: Giacomo Puccini
by artist: Cristina Gallardo-Domas
by artist: Maurizio Barbacini
by artist: Das Münchner Rundfunkorchester
by artist: Munich Radio Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 32
isrc code: DEA800028300
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T06:46:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe64eab5d572525d14767f821b7623467be2fade2824f132eddac583ae179ad0f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800028300
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0xe64eab5d572525d14767f821b7623467be2fade2824f132eddac583ae179ad0f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA800028300.
  date published: 2026-06-13T12:53:06Z
audio: Puccini: Madama Butterfly, Act 2: "Un bel dì vedremo" (Butterfly)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.455
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.329
  additional property: Energy
    type: PropertyValue
    value: 0.12
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.089
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.037
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
type: MusicRecording
duration: PT2M34S
duration ms: 154599
explicit: false
by artist: Giacomo Puccini
by artist: José Cura
by artist: Philharmonia Orchestra
by artist: Plácido Domingo
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 33
isrc code: FRZ209704300
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T22:57:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x686f5b6f9bc19f2dd94df3f53788f96885ae808ea2d1fff45e79867588180c6c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209704300
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x686f5b6f9bc19f2dd94df3f53788f96885ae808ea2d1fff45e79867588180c6c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ209704300.
  date published: 2026-06-13T17:25:41Z
audio: Puccini: Manon Lescaut, Act 1: "Donna non vidi mai" (Des Grieux)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.929
  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: 0.193
  additional property: Energy
    type: PropertyValue
    value: 0.188
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.946
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.256
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.15
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.032
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Flotow: Martha, Act 3: "Ach so fromm" (Lionel)
type: MusicRecording
duration: PT3M31S
duration ms: 211066
explicit: false
by artist: Friedrich von Flotow
by artist: Luciano Pavarotti
by artist: Richard Bonynge
by artist: New Philharmonia Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 31
isrc code: GBF077300010
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:38:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6828d2c16416a95300103ef0781f0d503275f68bc0512125fe8c5b579842ac5d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF077300010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x6828d2c16416a95300103ef0781f0d503275f68bc0512125fe8c5b579842ac5d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBF077300010.
  date published: 2026-06-13T15:41:10Z
audio: Flotow: Martha, Act 3: "Ach so fromm" (Lionel)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.788
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.195
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.101
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.068
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: Tosca, Act 2: "Vissi d'arte" (Tosca)
type: MusicRecording
duration: PT3M5S
duration ms: 185893
explicit: false
by artist: Giacomo Puccini
by artist: Kiri Te Kanawa
by artist: Kent Nagano
by artist: Orchestre de l'Opéra de Lyon
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 30
isrc code: FRZ209630600
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:44:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51abaf79ee94ac169c3caf48b4cfe39c55ce2385896843e3a2ceb815a2dd5454
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209630600
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x51abaf79ee94ac169c3caf48b4cfe39c55ce2385896843e3a2ceb815a2dd5454. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ209630600.
  date published: 2026-06-13T15:41:10Z
audio: Puccini: Tosca, Act 2: "Vissi d'arte" (Tosca)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.608
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.318
  additional property: Energy
    type: PropertyValue
    value: 0.218
  additional property: Speechiness
    type: PropertyValue
    value: 0.05
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.056
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.755
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: La bohème, Act 1: "Che gelida manina" (Rodolfo)
type: MusicRecording
duration: PT4M25S
duration ms: 265880
explicit: false
by artist: Giacomo Puccini
by artist: James Conlon
by artist: José Carreras
by artist: Orchestre National De France
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 31
isrc code: FRZ208701403
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:44:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71e6bc63d7ec9b5edddff74b9c57cb681125c675a700cc187f6640798df48485
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208701403
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x71e6bc63d7ec9b5edddff74b9c57cb681125c675a700cc187f6640798df48485. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ208701403.
  date published: 2026-06-13T15:41:10Z
audio: Puccini: La bohème, Act 1: "Che gelida manina" (Rodolfo)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 125.511
  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: 0.254
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.123
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.03
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: La bohème, Act 1: "Sì. Mi chiamano Mimì" (Mimì, Rodolfo, Schaunard, Colline, Marcello)
type: MusicRecording
duration: PT5M32S
duration ms: 332413
explicit: false
by artist: Giacomo Puccini
by artist: Barbara Hendricks
by artist: Francesco Ellero D'Artegna
by artist: Gino Quilico
by artist: James Conlon
by artist: José Carreras
by artist: Orchestre National De France
by artist: Richard Cowan
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 30
isrc code: FRZ208701404
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T18:02:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf277fc565da5cd63cb323b4b6c0f6e27217703dd12a41592eb8324f5aba81f89
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208701404
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0xf277fc565da5cd63cb323b4b6c0f6e27217703dd12a41592eb8324f5aba81f89. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FRZ208701404.
  date published: 2026-06-13T12:53:06Z
audio: Puccini: La bohème, Act 1: "Sì. Mi chiamano Mimì" (Mimì, Rodolfo, Schaunard, Colline, Marcello)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.217
  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: 0.282
  additional property: Energy
    type: PropertyValue
    value: 0.037
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.912
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.037
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.511
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: La bohème, Act 1: "O soave fanciulla" (Rodolfo, Mimì)
type: MusicRecording
duration: PT4M8S
duration ms: 248360
explicit: false
by artist: Giacomo Puccini
by artist: James Conlon
by artist: Barbara Hendricks
by artist: José Carreras
by artist: Orchestre National De France
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 30
isrc code: FRZ208701405
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:08:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe72529187322b0b27f1ca1d6d182d9c0407c9f53777cd05a8825fe9fdc1803a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953536
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208701405
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0xe72529187322b0b27f1ca1d6d182d9c0407c9f53777cd05a8825fe9fdc1803a3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRZ208701405.
  date published: 2026-06-13T17:25:41Z
audio: Puccini: La bohème, Act 1: "O soave fanciulla" (Rodolfo, Mimì)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.602
  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: 0.168
  additional property: Energy
    type: PropertyValue
    value: 0.083
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.842
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.128
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.057
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.79
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Puccini: Gianni Schicchi, Act 1: "O mio babbino caro" (Lauretta)
type: MusicRecording
duration: PT2M31S
duration ms: 151693
explicit: false
by artist: Giacomo Puccini
by artist: Cristina Gallardo-Domas
by artist: Maurizio Barbacini
by artist: Das Münchner Rundfunkorchester
by artist: Munich Radio Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 31
isrc code: DEA800028800
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T12:48:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9773b49bb3c093261121278051514676eb34a6838b7b28eb960cafc7f0092fa7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800028800
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
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 0x9773b49bb3c093261121278051514676eb34a6838b7b28eb960cafc7f0092fa7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA800028800.
  date published: 2026-06-13T12:53:06Z
audio: Puccini: Gianni Schicchi, Act 1: "O mio babbino caro" (Lauretta)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.629
  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: 0.251
  additional property: Energy
    type: PropertyValue
    value: 0.14
  additional property: Speechiness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Catalani: La Wally, Act 1: "Ebben, ne andrò lontana" (Wally)
type: MusicRecording
duration: PT3M43S
duration ms: 223386
explicit: false
by artist: Alfredo Catalani
by artist: Cristina Gallardo-Domas
by artist: Maurizio Barbacini
by artist: Das Münchner Rundfunkorchester
by artist: Munich Radio Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 29
genre: opera
isrc code: DEA800027700
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800027700
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71415bd52c9ac0a2a357af98806e267b723b1827b2b86e53008b0bcd84e8d225. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA800027700.
  date published: 2026-06-13T13:32:09Z
audio: Catalani: La Wally, Act 1: "Ebben, ne andrò lontana" (Wally)
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Offenbach: Les contes d'Hoffman, Act 4: Barcarolle - "Belle nuit, ô nuit d'amour" (Giulietta, Niklausse)
type: MusicRecording
duration: PT2M31S
duration ms: 151759
explicit: false
by artist: Jacques Offenbach
by artist: Jennifer Larmore
by artist: Hei-Kyung Hong
by artist: Jesús López-Cobos
by artist: Munich Radio Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 35
genre: classical
genre: german-romanticism
genre: late-romantic-era
genre: french-opera
genre: french-romanticism
genre: operetta
isrc code: DEA809809001
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809809001
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433cdbd959a88dc9658d36c95320f03a7b0776743c528513549f04f85bcb60d2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA809809001.
  date published: 2026-06-13T17:25:41Z
audio: Offenbach: Les contes d'Hoffman, Act 4: Barcarolle - "Belle nuit, ô nuit d'amour" (Giulietta, Niklausse)
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  additional property: Energy
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  additional property: Valence (Positivity)
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Bizet: Carmen, WD 31, Act 2: "La fleur que tu m'avais jetée" (Don José)
type: MusicRecording
duration: PT4M4S
duration ms: 244253
explicit: false
by artist: Georges Bizet
by artist: Lorin Maazel
by artist: Orchestre National De France
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 28
genre: classical
genre: opera
isrc code: FRZ208211333
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ208211333
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa6fc445a116d92d211e562603b99d49e37863ef21573ea0d6096b8cbc769a2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ208211333.
  date published: 2026-06-13T15:41:10Z
audio: Bizet: Carmen, WD 31, Act 2: "La fleur que tu m'avais jetée" (Don José)
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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
    type: PropertyValue
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  additional property: Valence (Positivity)
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Puccini: Turandot, Act 1: "Signore ascolta!" (Liù)
type: MusicRecording
duration: PT2M42S
duration ms: 162639
explicit: false
by artist: Giacomo Puccini
by artist: Kiri Te Kanawa
by artist: Kent Nagano
by artist: Orchestre de l'Opéra de Lyon
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 30
isrc code: FRZ209632100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ209632100
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x1e5873e6730d2e3350b5ee7ef8ae01313fe45ddd95aafd1e77ebbaf72851f334. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRZ209632100.
  date published: 2026-06-13T15:41:10Z
audio: Puccini: Turandot, Act 1: "Signore ascolta!" (Liù)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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Verdi: La traviata, Act 1: "Un dì felice" (Alfredo, Violetta, Gastone)
type: MusicRecording
duration: PT3M9S
duration ms: 189239
explicit: false
by artist: Giuseppe Verdi
by artist: Carlo Rizzi
by artist: Edita Gruberova
by artist: London Symphony Orchestra
by artist: Neil Shicoff
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 28
genre: classical
genre: opera
isrc code: DEA809220918
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEA809220918
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x1596ce3ff3dffd3de1ad4e14991e37967b3c9141700b1a74876b2bcf5a7ab6b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA809220918.
  date published: 2026-06-13T15:41:10Z
audio: Verdi: La traviata, Act 1: "Un dì felice" (Alfredo, Violetta, Gastone)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.324
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Delibes: Lakmé, Act 1: Flower Duet - "Dôme épais le jasmin" (Lakmé, Mallika)
type: MusicRecording
duration: PT4M38S
duration ms: 278986
explicit: false
by artist: Léo Delibes
by artist: Jennifer Larmore
by artist: Hei-Kyung Hong
by artist: Jesús López-Cobos
by artist: Munich Radio Orchestra
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 33
genre: classical
isrc code: DEA809809003
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
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 0x7d777f3855e8fada7bb6e40faf3edf158b2bbac3fb97393fd0db0bd3a5a04c7d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA809809003.
  date published: 2026-06-13T17:25:41Z
audio: Delibes: Lakmé, Act 1: Flower Duet - "Dôme épais le jasmin" (Lakmé, Mallika)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Mozart: Le nozze di Figaro, Act 2: "Porgi amor qualche ristoro" (La Contessa)
type: MusicRecording
duration: PT4M3S
duration ms: 243933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Daniel Barenboim
by artist: Berliner Philharmoniker
by artist: Lella Cuberli
in album: 40 Most Beautiful Arias
  type: MusicAlbum
  date published: 2008-11-06
popularity: 28
genre: classical
genre: classical-era
isrc code: FRZ209000423
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Mozart: Le nozze di Figaro, Act 2: "Porgi amor qualche ristoro" (La Contessa)
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Mozart: Don Giovanni, K. 527, Act 1: "Dalla sua pace" (Don Ottavio)
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duration: PT4M42S
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by artist: Hans Peter Blochwitz
by artist: Royal Concertgebouw Orchestra
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popularity: 28
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Mozart: Don Giovanni, K. 527, Act 1: "Dalla sua pace" (Don Ottavio)
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Rossini: Il barbiere di Siviglia, Act 1, No. 5: Una voce poco fa
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duration: PT5M33S
duration ms: 333853
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by artist: Jesús López-Cobos
by artist: Orchestre de Chambre de Lausanne
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popularity: 27
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: 2026-06-13T13:32:09Z
audio: Rossini: Il barbiere di Siviglia, Act 1, No. 5: Una voce poco fa
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Handel: Rinaldo, HWV 7, Act 2: Aria. "Lascia ch'io pianga" (Almirena)
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duration: PT4M34S
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by artist: George Frideric Handel
by artist: Claudio Scimone
by artist: I Solisti Veneti
by artist: Marilyn Horne
in album: 40 Most Beautiful Arias
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  date published: 2008-11-06
popularity: 28
genre: classical
genre: early-music
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genre: english-baroque
genre: german-baroque
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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: 2026-06-13T13:32:09Z
audio: Handel: Rinaldo, HWV 7, Act 2: Aria. "Lascia ch'io pianga" (Almirena)
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Gluck: Orphée et Eurydice, Act 3: "J'ai perdu mon Eurydice" (Orphée)
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duration: PT4M22S
duration ms: 262706
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by artist: Christoph Willibald Gluck
by artist: Susan Graham
by artist: Harry Bicket
by artist: Orchestra of the Age of Enlightenment
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popularity: 27
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: 2026-06-13T13:32:09Z
audio: Gluck: Orphée et Eurydice, Act 3: "J'ai perdu mon Eurydice" (Orphée)
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Verdi: Aïda, Act 1: "Celeste Aïda" (Radames)
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duration ms: 282493
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by artist: Giuseppe Verdi
by artist: Plácido Domingo
by artist: Nello Santi
by artist: Berlin Deutsche Oper Orchestra
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popularity: 28
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: 2026-06-13T17:25:41Z
audio: Verdi: Aïda, Act 1: "Celeste Aïda" (Radames)
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Mozart: Don Giovanni, Act 2: "Deh vieni alla fenestra" (Don Giovanni)
type: MusicRecording
duration: PT2M16S
duration ms: 136626
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Bryn Terfel
by artist: Sir Georg Solti
by artist: London Philharmonic Orchestra
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popularity: 26
genre: classical
genre: classical-era
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T13:32:09Z
audio: Mozart: Don Giovanni, Act 2: "Deh vieni alla fenestra" (Don Giovanni)
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Puccini: La rondine, Act 1: "Chi il bel sogno di Doretta" (Magda)
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duration ms: 178013
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by artist: Giacomo Puccini
by artist: Kiri Te Kanawa
by artist: Kent Nagano
by artist: Orchestre de l'Opéra de Lyon
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popularity: 26
isrc code: FRZ209631700
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subject of: OpenTimestamps Proof of Existence
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audio: Puccini: La rondine, Act 1: "Chi il bel sogno di Doretta" (Magda)
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Giordano: Fedora, Act 2: "Amor ti vieta di non amar" (Loris)
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by artist: Nello Santi
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: Puccini: Tosca, Act 3: "E lucevan le stelle" (Cavaradossi)
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Verdi: Otello, Act 4: "Ave Maria" (Desdemona)
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by artist: Das Münchner Rundfunkorchester
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subject of: OpenTimestamps Proof of Existence
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audio: Verdi: Otello, Act 4: "Ave Maria" (Desdemona)
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Wagner: Tristan und Isolde, Act 3: Liebestod. "Mild und leise wie er lächelt" (Isolde)
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popularity: 26
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T15:41:10Z
audio: Wagner: Tristan und Isolde, Act 3: Liebestod. "Mild und leise wie er lächelt" (Isolde)
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Klassische Musik für den Sommer - Über das Meer
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track: Debussy: Petite suite, CD 71, L. 65: I. En bateau (Orch. Büsser)
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track: Satie: Sports et divertissements: No. 9, Le bain de mer
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track: Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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Britten: Four Sea Interludes from Peter Grimes, Op. 33a: No. 3, Moonlight
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Chopin: 12 Études, Op. 25: No. 12 in C Minor
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Vivaldi: Flute Concerto in F Major, Op. 10 No. 1, RV 433 "La tempesta di mare": I. Allegro
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Debussy: La Mer, CD 111, L. 109: II. Jeux de vagues
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Bridge: The Sea: I. Seascape. Allegro ben moderato
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The Irresistible Karita Mattila
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Vocal Recital: Mattila, Karita - Schumann, R. / Brahms, J. / Merikanto, O. / Melartin, E. / Sibelius, J. / Schubert, F. / Dvorak, A.
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Vocal Recital: Mattila, Karita - Loewe, F. / Lloyd Webber, A. / Leandros, L. / Hollander, F. / Styne, J. / Gershwin, G. (Best of Evergreens)
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Vocal Recital: Mattila, Karita - Wagner, R. / Dvorak, A. / Verdi, G. / Strauss Ii / Sibelius, J. / Madetoja, L. / Hollander, F. (Karita Live!)
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Verdi: Don Carlos (Live)
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33149c61775820cf7ad161e06c89fe52b1bd8c38699cac151f5ad8955c7ee717. 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/FRZ119600850.
    date published: 2026-07-08T03:20:19Z
  audio: Verdi: Don Carlos, Act 1: "Le bruit du cor s'éteint sous l'ombre épaisse" (Don Carlos, Thibault, Élisabeth) [Live]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.744
    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: 0.395
    additional property: Energy
      type: PropertyValue
      value: 0.036
    additional property: Speechiness
      type: PropertyValue
      value: 0.078
    additional property: Acousticness
      type: PropertyValue
      value: 0.957
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.316
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.192
    additional property: Loudness (dB)
      type: PropertyValue
      value: -34.547
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Verdi: Don Carlos, Act 2: "Dieu, tu semas dans nos âmes" (Don Carlos, Rodrigue, Chorus, Un moine) [Live]
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275466
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Antonio Pappano
  by artist: Choeur Du Theatre Du Chatelet
  by artist: Csaba Airizer
  by artist: Roberto Alagna
  by artist: Thomas Hampson
  by artist: Orchestre de Paris
  in album: Verdi: Don Carlos (Live)
    type: MusicAlbum
    date published: 1996-01-01
  genre: classical
  genre: opera
  isrc code: FRZ119600930
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T07:27:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3e9051da9c15f031d67e7c9229e51c017130fbeced84931927be4298bf777a75
  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/FRZ119600930
  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 0x3e9051da9c15f031d67e7c9229e51c017130fbeced84931927be4298bf777a75. 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/FRZ119600930.
    date published: 2026-07-08T03:22:41Z
  audio: Verdi: Don Carlos, Act 2: "Dieu, tu semas dans nos âmes" (Don Carlos, Rodrigue, Chorus, Un moine) [Live]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 97.032
    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: 0.172
    additional property: Energy
      type: PropertyValue
      value: 0.124
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.984
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.011
    additional property: Liveness
      type: PropertyValue
      value: 0.714
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.095
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.401
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Verdi: Don Carlos, Act 2: "Je viens solliciter de la reine" (Don Carlos, Élisabeth) [Live]
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225400
  explicit: false
  by artist: Giuseppe Verdi
  by artist: Antonio Pappano
  by artist: Karita Mattila
  by artist: Roberto Alagna
  by artist: Orchestre de Paris
  in album: Verdi: Don Carlos (Live)
    type: MusicAlbum
    date published: 1996-01-01
  genre: classical
  genre: opera
  isrc code: FRZ119600980
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Verdi: Don Carlos, Act 2: "Je viens solliciter de la reine" (Don Carlos, Élisabeth) [Live]
track: Verdi: Don Carlos, Act 3: "Que dit-il ? Il est en délire ... " (Rodrigue, Eboli, Don Carlos) [Live]
track: Verdi: Don Carlos, Act 3: "Sire, il est temps !" (Don Carlos, Philippe, Élisabeth, Rodrigue, Thibault, Les moines, Chorus, Une voix d'en haut) [Live]
track: Verdi: Don Carlos, Act 4: "Le Grand Inquisiteur !" (Comte de Lerme, Le Grand Inquisiteur, Philippe) [Live]
track: Verdi: Don Carlos, Act 5: "Toi qui sus le néant des grandeurs de ce monde" (Élisabeth) [Live]
track: Verdi: Don Carlos, Act 5: "C'est elle !" (Don Carlos, Élisabeth) [Live]

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T11:39:53+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x6cf82ff5a2b1f950c17a9c7073e72aadc3290c7ec6d45df386a9aa05c8ebb839

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957120

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957120

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119600980

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:22:41Z

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 0x6cf82ff5a2b1f950c17a9c7073e72aadc3290c7ec6d45df386a9aa05c8ebb839. 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/FRZ119600980.
date published: 2026-07-08T03:22:41Z

Verdi: Don Carlos, Act 2: "Je viens solliciter de la reine" (Don Carlos, Élisabeth) [Live]
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 107.565
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: 0.282
additional property: Energy
  type: PropertyValue
  value: 0.085
additional property: Speechiness
  type: PropertyValue
  value: 0.065
additional property: Acousticness
  type: PropertyValue
  value: 0.973
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.565
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.072
additional property: Loudness (dB)
  type: PropertyValue
  value: -29.213
additional property: Key Name
  type: PropertyValue
  value: Bb
additional property: Mode Name
  type: PropertyValue
  value: Major

Verdi: Don Carlos, Act 3: "Que dit-il ? Il est en délire ... " (Rodrigue, Eboli, Don Carlos) [Live]
type: MusicRecording
duration: PT3M6S
duration ms: 186853
explicit: false
by artist: Giuseppe Verdi
by artist: Antonio Pappano
by artist: Roberto Alagna
by artist: Thomas Hampson
by artist: Waltraud Meier
by artist: Orchestre de Paris
in album: Verdi: Don Carlos (Live)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: opera
isrc code: FRZ119601070
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T23:05:35+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3ee37f3c31a5c2a7032d291b2ac497b5225aa9c561848c9b762b511e5499fd48
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/FRZ119601070
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 0x3ee37f3c31a5c2a7032d291b2ac497b5225aa9c561848c9b762b511e5499fd48. 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/FRZ119601070.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Don Carlos, Act 3: "Que dit-il ? Il est en délire ... " (Rodrigue, Eboli, Don Carlos) [Live]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.689
  additional property: Musical Key
    type: PropertyValue
    value: 5
  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: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.504
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.303
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.323
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Verdi: Don Carlos, Act 3: "Sire, il est temps !" (Don Carlos, Philippe, Élisabeth, Rodrigue, Thibault, Les moines, Chorus, Une voix d'en haut) [Live]
type: MusicRecording
duration: PT5M10S
duration ms: 310840
explicit: false
by artist: Giuseppe Verdi
by artist: Antonio Pappano
by artist: Anat Efraty
by artist: Choeur Du Theatre Du Chatelet
by artist: Daniel Bonnardot
by artist: Donna Brown
by artist: José van Dam
by artist: Karita Mattila
by artist: Roberto Alagna
by artist: Thomas Hampson
by artist: Orchestre de Paris
in album: Verdi: Don Carlos (Live)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: opera
isrc code: FRZ119601110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:55:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3cae61c3aaad5c27294f338825fac22a67a09cd9e3f9ac96393f1425c0b7aefc
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/FRZ119601110
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 0x3cae61c3aaad5c27294f338825fac22a67a09cd9e3f9ac96393f1425c0b7aefc. 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/FRZ119601110.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Don Carlos, Act 3: "Sire, il est temps !" (Don Carlos, Philippe, Élisabeth, Rodrigue, Thibault, Les moines, Chorus, Une voix d'en haut) [Live]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.565
  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: 0.207
  additional property: Energy
    type: PropertyValue
    value: 0.13
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.965
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.895
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.15
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.2
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Don Carlos, Act 4: "Le Grand Inquisiteur !" (Comte de Lerme, Le Grand Inquisiteur, Philippe) [Live]
type: MusicRecording
duration: PT3M49S
duration ms: 229893
explicit: false
by artist: Giuseppe Verdi
by artist: Antonio Pappano
by artist: Eric Halfvarson
by artist: José van Dam
by artist: Scott Weir
by artist: Orchestre de Paris
in album: Verdi: Don Carlos (Live)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: opera
isrc code: FRZ119601130
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:27:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x664edab8b575d9c1b6f319f0dec3409417f18cd224ebd3378da06d7904127927
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/FRZ119601130
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 0x664edab8b575d9c1b6f319f0dec3409417f18cd224ebd3378da06d7904127927. 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/FRZ119601130.
  date published: 2026-07-08T03:53:27Z
audio: Verdi: Don Carlos, Act 4: "Le Grand Inquisiteur !" (Comte de Lerme, Le Grand Inquisiteur, Philippe) [Live]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.191
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.28
  additional property: Energy
    type: PropertyValue
    value: 0.059
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.084
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.374
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Verdi: Don Carlos, Act 5: "Toi qui sus le néant des grandeurs de ce monde" (Élisabeth) [Live]
type: MusicRecording
duration: PT11M25S
duration ms: 685160
explicit: false
by artist: Giuseppe Verdi
by artist: Antonio Pappano
by artist: Karita Mattila
by artist: Orchestre de Paris
in album: Verdi: Don Carlos (Live)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: opera
isrc code: FRZ119601240
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:27:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd71a52422fe704b8ac8e7b631f85642a657d3e7ef44fbc1a4d8a83b2d1f4a0ec
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/FRZ119601240
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 0xd71a52422fe704b8ac8e7b631f85642a657d3e7ef44fbc1a4d8a83b2d1f4a0ec. 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/FRZ119601240.
  date published: 2026-07-08T03:22:41Z
audio: Verdi: Don Carlos, Act 5: "Toi qui sus le néant des grandeurs de ce monde" (Élisabeth) [Live]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.92
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.253
  additional property: Energy
    type: PropertyValue
    value: 0.056
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.092
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.035
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.83
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Verdi: Don Carlos, Act 5: "C'est elle !" (Don Carlos, Élisabeth) [Live]
type: MusicRecording
duration: PT3M36S
duration ms: 216666
explicit: false
by artist: Giuseppe Verdi
by artist: Antonio Pappano
by artist: Karita Mattila
by artist: Roberto Alagna
by artist: Orchestre de Paris
in album: Verdi: Don Carlos (Live)
  type: MusicAlbum
  date published: 1996-01-01
genre: classical
genre: opera
isrc code: FRZ119601250
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:49:48+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe3a832f7c79ee55c80da1cba50983a9e051edacbf8af251da418c81c8ecab460
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957122
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957122
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ119601250
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:39:04Z
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 0xe3a832f7c79ee55c80da1cba50983a9e051edacbf8af251da418c81c8ecab460. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ119601250.
  date published: 2026-07-08T03:39:04Z
audio: Verdi: Don Carlos, Act 5: "C'est elle !" (Don Carlos, Élisabeth) [Live]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.346
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.319
  additional property: Energy
    type: PropertyValue
    value: 0.067
  additional property: Speechiness
    type: PropertyValue
    value: 0.084
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.05
  additional property: Loudness (dB)
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Mozart: Don Giovanni
type: MusicAlbum
date published: 1991-10-07
track: Don Giovanni, K.527: Overture
  type: MusicRecording
  duration: PT6M3S
  duration ms: 363000
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Don Giovanni
    type: MusicAlbum
    date published: 1991-10-07
  genre: classical
  genre: classical-era
  isrc code: NLA508902701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T12:44:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5efde10f4b3daa7bdb4fd34dff69be36dba122a31687a2a4353bce1e7c4d990b
  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/NLA508902701
  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 0x5efde10f4b3daa7bdb4fd34dff69be36dba122a31687a2a4353bce1e7c4d990b. 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/NLA508902701.
    date published: 2026-07-08T03:20:19Z
  audio: Don Giovanni, K.527: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.19
    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: 0.342
    additional property: Energy
      type: PropertyValue
      value: 0.099
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.949
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.926
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.268
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.942
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Don Giovanni, K.527 / Act 1: "Ah! del padre in periglio...Ma qual mai s'offre, o Dei"
  type: MusicRecording
  duration: PT3M1S
  duration ms: 181200
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Sharon Sweet
  by artist: Francisco Araiza
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Don Giovanni
    type: MusicAlbum
    date published: 1991-10-07
  genre: classical
  genre: classical-era
  isrc code: NLA508902705
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T16:10:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xabd1e17d1532178a5065f46ad9724f461958584447870d815b251c35b4c6b7e7
  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/NLA508902705
  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 0xabd1e17d1532178a5065f46ad9724f461958584447870d815b251c35b4c6b7e7. 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/NLA508902705.
    date published: 2026-07-08T03:53:27Z
  audio: Don Giovanni, K.527 / Act 1: "Ah! del padre in periglio...Ma qual mai s'offre, o Dei"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.204
    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: 0.244
    additional property: Energy
      type: PropertyValue
      value: 0.034
    additional property: Speechiness
      type: PropertyValue
      value: 0.057
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.37
    additional property: Valence (Positivity)
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      value: 0.049
    additional property: Loudness (dB)
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      value: -27.375
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Don Giovanni, K.527 / Act 1: "Fuggi, crudele, fuggi!"
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234066
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Sharon Sweet
  by artist: Francisco Araiza
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Don Giovanni
    type: MusicAlbum
    date published: 1991-10-07
  genre: classical
  genre: classical-era
  isrc code: NLA508902706
  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: Don Giovanni, K.527 / Act 1: "Fuggi, crudele, fuggi!"
track: Don Giovanni, K.527 / Act 1: "Orsù, spicciati presto"
track: Don Giovanni, K.527 / Act 1: "Chi è là?"
track: Don Giovanni, K.527 / Act 1: "Madamina, il catalogo è questo"
track: Don Giovanni, K.527 / Act 1: "Non ti fidar, o misera"
track: Don Giovanni, K.527 / Act 1: "Dalla sua pace" (K.540a)
track: Don Giovanni, K.527 / Act 2: "Ah! taci, ingiusto core"

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T23:14:05+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xcde0693a808d811f4f949dbaf5323396ce7bd34c7cd705ba0fd5430887f003d2

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957145

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957145

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508902706

OTSTimestamp
type: PropertyValue
value: 2026-07-08T08:56:20Z

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 0xcde0693a808d811f4f949dbaf5323396ce7bd34c7cd705ba0fd5430887f003d2. 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/NLA508902706.
date published: 2026-07-08T08:56:20Z

Don Giovanni, K.527 / Act 1: "Fuggi, crudele, fuggi!"
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 119.414
additional property: Musical Key
  type: PropertyValue
  value: 2
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.34
additional property: Energy
  type: PropertyValue
  value: 0.138
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.981
additional property: Instrumentalness
  type: PropertyValue
  value: 0.004
additional property: Liveness
  type: PropertyValue
  value: 0.195
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.106
additional property: Loudness (dB)
  type: PropertyValue
  value: -21.987
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Minor

Don Giovanni, K.527 / Act 1: "Orsù, spicciati presto"
type: MusicRecording
duration: PT1M40S
duration ms: 100266
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Thomas Allen
by artist: Simone Alaimo
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902707
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:21:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4450277b5eb463c992e9651da99372f1e524d607cf5636c4d6ac677e9bf2f6c
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/NLA508902707
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 0xb4450277b5eb463c992e9651da99372f1e524d607cf5636c4d6ac677e9bf2f6c. 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/NLA508902707.
  date published: 2026-07-08T08:56:20Z
audio: Don Giovanni, K.527 / Act 1: "Orsù, spicciati presto"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.992
  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: 0.489
  additional property: Energy
    type: PropertyValue
    value: 0.079
  additional property: Speechiness
    type: PropertyValue
    value: 0.478
  additional property: Acousticness
    type: PropertyValue
    value: 0.797
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.338
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.364
  additional property: Loudness (dB)
    type: PropertyValue
    value: -32.574
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 1: "Chi è là?"
type: MusicRecording
duration: PT2M37S
duration ms: 157026
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Thomas Allen
by artist: Simone Alaimo
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902709
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:04:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91cf3095486d41e60cda4bde87ac352fbad0bd8cea052af5597b4ced40647414
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/NLA508902709
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 0x91cf3095486d41e60cda4bde87ac352fbad0bd8cea052af5597b4ced40647414. 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/NLA508902709.
  date published: 2026-07-08T03:22:41Z
audio: Don Giovanni, K.527 / Act 1: "Chi è là?"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.749
  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: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.302
  additional property: Acousticness
    type: PropertyValue
    value: 0.939
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.289
  additional property: Loudness (dB)
    type: PropertyValue
    value: -30.357
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 1: "Madamina, il catalogo è questo"
type: MusicRecording
duration: PT5M42S
duration ms: 342173
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Simone Alaimo
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902710
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:36:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57e12191281e72953a2782880d074b73be5c714bebe9390e9fb75e3aded46087
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/NLA508902710
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 0x57e12191281e72953a2782880d074b73be5c714bebe9390e9fb75e3aded46087. 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/NLA508902710.
  date published: 2026-07-08T08:56:20Z
audio: Don Giovanni, K.527 / Act 1: "Madamina, il catalogo è questo"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.609
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.372
  additional property: Energy
    type: PropertyValue
    value: 0.121
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.074
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.288
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.034
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 1: "Non ti fidar, o misera"
type: MusicRecording
duration: PT4M25S
duration ms: 265666
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Sharon Sweet
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902720
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:03:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5eeebe4ed9979681fbb45d9458470af3c75a8f5ed41851ffc6290ea722d2ca0f
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/NLA508902720
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 0x5eeebe4ed9979681fbb45d9458470af3c75a8f5ed41851ffc6290ea722d2ca0f. 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/NLA508902720.
  date published: 2026-07-08T03:53:27Z
audio: Don Giovanni, K.527 / Act 1: "Non ti fidar, o misera"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.317
  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: 0.265
  additional property: Energy
    type: PropertyValue
    value: 0.082
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.981
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.174
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.29
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 1: "Dalla sua pace" (K.540a)
type: MusicRecording
duration: PT4M38S
duration ms: 278000
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Francisco Araiza
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902725
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:44:00+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4320a4faa9f7234feca889bce1e160c24fc585e2529040e50d1236b4abdf3eff
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/NLA508902725
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 0x4320a4faa9f7234feca889bce1e160c24fc585e2529040e50d1236b4abdf3eff. 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/NLA508902725.
  date published: 2026-07-08T03:22:41Z
audio: Don Giovanni, K.527 / Act 1: "Dalla sua pace" (K.540a)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.982
  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: 0.206
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.136
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.058
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.671
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Giovanni, K.527 / Act 2: "Ah! taci, ingiusto core"
type: MusicRecording
duration: PT4M41S
duration ms: 281333
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Thomas Allen
by artist: Simone Alaimo
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Don Giovanni
  type: MusicAlbum
  date published: 1991-10-07
genre: classical
genre: classical-era
isrc code: NLA508902741
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T14:45:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2753e089bf2a5330f828a823277ccefbac3ccf1a46420cffa9eef9ab04ce30dc
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/NLA508902741
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 0x2753e089bf2a5330f828a823277ccefbac3ccf1a46420cffa9eef9ab04ce30dc. 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/NLA508902741.
  date published: 2026-07-08T03:53:27Z
audio: Don Giovanni, K.527 / Act 2: "Ah! taci, ingiusto core"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 160.97
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.202
  additional property: Energy
    type: PropertyValue
    value: 0.1
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.023
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.16
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.132
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

Weber: Der Freischütz
type: MusicAlbum
date published: 1991-01-01
track: Der Freischütz, J. 277 / Act 1: "Oh diese Sonne"
  type: MusicRecording
  duration: PT6M29S
  duration ms: 389306
  explicit: false
  by artist: Carl Maria von Weber
  by artist: Francisco Araiza
  by artist: Ekkehard Wlaschiha
  by artist: Thomas Thomaschke
  by artist: MDR Leipzig Radio Chorus
  by artist: Staatskapelle Dresden
  by artist: Sir Colin Davis
  in album: Weber: Der Freischütz
    type: MusicAlbum
    date published: 1991-01-01
  genre: classical
  genre: opera
  isrc code: NLA508803105
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T02:51:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x01ecdc787c7ad81174af12c8a1fb406055c9f9af3edbedbab817f1c53abef9fb
  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/NLA508803105
  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 0x01ecdc787c7ad81174af12c8a1fb406055c9f9af3edbedbab817f1c53abef9fb. 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/NLA508803105.
    date published: 2026-07-08T03:20:19Z
  audio: Der Freischütz, J. 277 / Act 1: "Oh diese Sonne"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.071
    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: 0.29
    additional property: Energy
      type: PropertyValue
      value: 0.232
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.076
    additional property: Liveness
      type: PropertyValue
      value: 0.603
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.24
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.252
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mozart: Così fan tutte
type: MusicAlbum
date published: 1990-09-05
track: Così fan tutte, K.588: Overture
  type: MusicRecording
  duration: PT4M35S
  duration ms: 275666
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Così fan tutte
    type: MusicAlbum
    date published: 1990-09-05
  genre: classical
  genre: classical-era
  isrc code: NLA508720301
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:33:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x27b91c0db2bab250dbbc637ef29b33e9e3336cfc8e620e2a95f430c222b2c0b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957061
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957061
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720301
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T16:07:00Z
  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 0x27b91c0db2bab250dbbc637ef29b33e9e3336cfc8e620e2a95f430c222b2c0b9. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/NLA508720301.
    date published: 2026-07-07T16:07:00Z
  audio: Così fan tutte, K.588: Overture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 148.717
    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: 0.304
    additional property: Energy
      type: PropertyValue
      value: 0.053
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.968
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.889
    additional property: Liveness
      type: PropertyValue
      value: 0.204
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.254
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.696
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Così fan tutte, K.588 / Act 1: "La mia Dorabella" - "Fuor la spada"
  type: MusicRecording
  duration: PT3M7S
  duration ms: 187266
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Francisco Araiza
  by artist: Thomas Allen
  by artist: José van Dam
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Così fan tutte
    type: MusicAlbum
    date published: 1990-09-05
  genre: classical
  genre: classical-era
  isrc code: NLA508720302
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T07:28:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x668d55b4ebe489d7040e1f920e8a59b176721ec6a0a44f38351a78031c8b03e9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957043
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957043
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720302
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T13:52:39Z
  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 0x668d55b4ebe489d7040e1f920e8a59b176721ec6a0a44f38351a78031c8b03e9. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/NLA508720302.
    date published: 2026-07-07T13:52:39Z
  audio: Così fan tutte, K.588 / Act 1: "La mia Dorabella" - "Fuor la spada"
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.224
    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: 0.454
    additional property: Energy
      type: PropertyValue
      value: 0.15
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.609
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.481
    additional property: Loudness (dB)
      type: PropertyValue
      value: -24.782
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Così fan tutte, K.588 / Act 1: "Una bella serenata"
  type: MusicRecording
  duration: PT2M20S
  duration ms: 140133
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Francisco Araiza
  by artist: José van Dam
  by artist: Thomas Allen
  by artist: Academy of St. Martin in the Fields
  by artist: Sir Neville Marriner
  in album: Mozart: Così fan tutte
    type: MusicAlbum
    date published: 1990-09-05
  genre: classical
  genre: classical-era
  isrc code: NLA508720304
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Così fan tutte, K.588 / Act 1: "Una bella serenata"
track: Così fan tutte, K.588 / Act 1: "Vorrei dir, e cor non ho" - "Stelle! Per carità, signor Alfonso"
track: Così fan tutte, K.588 / Act 1: "Sento, oh Dio, che questo piede" - "Non piangere, idol mio!"
track: Così fan tutte, K.588 / Act 1: "Al fato dan legge" - "La commedia è graziosa"
track: Così fan tutte, K.588 / Act 1: "Bella vita militar!" - "Non v'è più tempo"
track: Così fan tutte, K.588 / Act 1: "Soave sia il vento" - "Non son cattivo" - "Che vita maledetta" - "Madame, ecco la vostra colazione"
track: Così fan tutte, K.588 / Act 1: "Ah, scostati!" - "Smanie implacabili" - "Signora Dorabella"
track: Così fan tutte, K.588 / Act 1: "Alla bella Despinetta" - "Che sussurro! Che strepito!"
track: Così fan tutte, K.588 / Act 1: "E voi ridete?" - "Si può sapere un poco"
track: Così fan tutte, K.588 / Act 1: "Oh, la saria da ridere!"
track: Così fan tutte, K.588 / Act 1: "Eccovi il medico"
track: Così fan tutte, K.588 / Act 1: "Dammi un bacio"
track: Così fan tutte, K.588 / Act 2: "La mano a me date" - "Oh che bella giornata!"
track: Così fan tutte, K.588 / Act 2: "Ei parte... senti... ah no!"
track: Così fan tutte, K.588 / Act 2: "Donne mie, la fate a tanti"
track: Così fan tutte, K.588 / Act 2: "In qual fiero" - "Tradito, schernito" - "Bravo, questa è costanza"
track: Così fan tutte, K.588 / Act 2: "Come tutto congiura" - "L'abito di Ferrando"
track: Così fan tutte, K.588 / Act 2: "Tutti accusan le donne" - "Vittoria, padroncini!"
track: Così fan tutte, K.588 / Act 2: "Miei signori, tutto è fatto"
track: Così fan tutte, K.588 / Act 2: "Sani e salvi"
track: Così fan tutte, K.588 / Act 2: "Ah, signor, son rea di morte"

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-06T10:07:38+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x7a8635c3e7c13eaa38edd3d1d4b505414ac87b9edf99047f3d399bf105ec7d85

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957052

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957052

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720304

OTSTimestamp
type: PropertyValue
value: 2026-07-07T14:50:41Z

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 0x7a8635c3e7c13eaa38edd3d1d4b505414ac87b9edf99047f3d399bf105ec7d85. 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/NLA508720304.
date published: 2026-07-07T14:50:41Z

Così fan tutte, K.588 / Act 1: "Una bella serenata"
type: AudioObject
additional property: Tempo (BPM)
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  value: 141.395
additional property: Musical Key
  type: PropertyValue
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additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 5
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
  type: PropertyValue
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additional property: Liveness
  type: PropertyValue
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Così fan tutte, K.588 / Act 1: "Vorrei dir, e cor non ho" - "Stelle! Per carità, signor Alfonso"
type: MusicRecording
duration: PT1M44S
duration ms: 104360
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720306
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:35:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x838a65d9efb1e2263cfe523b6668d2e5f1100355c9d662d9ad256e379aeabbd7
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/NLA508720306
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 0x838a65d9efb1e2263cfe523b6668d2e5f1100355c9d662d9ad256e379aeabbd7. 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/NLA508720306.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 1: "Vorrei dir, e cor non ho" - "Stelle! Per carità, signor Alfonso"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.663
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 6
  additional property: Danceability
    type: PropertyValue
    value: 0.523
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.689
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.285
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.792
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Così fan tutte, K.588 / Act 1: "Sento, oh Dio, che questo piede" - "Non piangere, idol mio!"
type: MusicRecording
duration: PT5M58S
duration ms: 358133
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Thomas Allen
by artist: Francisco Araiza
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720307
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T09:49:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb137164daf009b19d2a8cd2c6b199fe3d542a36775b28d0ae63d98a1da704951
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957050
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720307
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T14:41:13Z
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 0xb137164daf009b19d2a8cd2c6b199fe3d542a36775b28d0ae63d98a1da704951. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLA508720307.
  date published: 2026-07-07T14:41:13Z
audio: Così fan tutte, K.588 / Act 1: "Sento, oh Dio, che questo piede" - "Non piangere, idol mio!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.84
  additional property: Musical Key
    type: PropertyValue
    value: 3
  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: 0.299
  additional property: Energy
    type: PropertyValue
    value: 0.037
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.986
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.115
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.391
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Bella vita militar!" - "Non v'è più tempo"
type: MusicRecording
duration: PT2M17S
duration ms: 137533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Ambrosian Opera Chorus
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720309
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T01:06:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xada50a76a4dafc1699d7b3122d2e84a0d9c5a1b0bc2bc65c9796fdee805eeaf0
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/NLA508720309
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 0xada50a76a4dafc1699d7b3122d2e84a0d9c5a1b0bc2bc65c9796fdee805eeaf0. 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/NLA508720309.
  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte, K.588 / Act 1: "Bella vita militar!" - "Non v'è più tempo"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.828
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.554
  additional property: Energy
    type: PropertyValue
    value: 0.112
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.049
  additional property: Liveness
    type: PropertyValue
    value: 0.121
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.355
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.09
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Ah, scostati!" - "Smanie implacabili" - "Signora Dorabella"
type: MusicRecording
duration: PT4M58S
duration ms: 298933
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Anne Sofie von Otter
by artist: Elzbieta Szmytka
by artist: Karita Mattila
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720312
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:23:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57f90bd4eb41f0ce55285bdd2132b0d213ec2fff593e4f9110138091f0128738
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/NLA508720312
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 0x57f90bd4eb41f0ce55285bdd2132b0d213ec2fff593e4f9110138091f0128738. 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/NLA508720312.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K.588 / Act 1: "Ah, scostati!" - "Smanie implacabili" - "Signora Dorabella"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.535
  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: 0.494
  additional property: Energy
    type: PropertyValue
    value: 0.062
  additional property: Speechiness
    type: PropertyValue
    value: 0.14
  additional property: Acousticness
    type: PropertyValue
    value: 0.964
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.157
  additional property: Loudness (dB)
    type: PropertyValue
    value: -26.459
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Alla bella Despinetta" - "Che sussurro! Che strepito!"
type: MusicRecording
duration: PT7M0S
duration ms: 420066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Elzbieta Szmytka
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720314
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T02:39:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fd90c4132d8b40e02ae2e073669ac246b42ff56cd0e7b6d366a0c8ecbbebb1d
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/NLA508720314
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 0x0fd90c4132d8b40e02ae2e073669ac246b42ff56cd0e7b6d366a0c8ecbbebb1d. 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/NLA508720314.
  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte, K.588 / Act 1: "Alla bella Despinetta" - "Che sussurro! Che strepito!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.454
  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: 0.43
  additional property: Energy
    type: PropertyValue
    value: 0.118
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.974
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.285
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.291
  additional property: Loudness (dB)
    type: PropertyValue
    value: -24.176
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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Così fan tutte, K.588 / Act 1: "E voi ridete?" - "Si può sapere un poco"
type: MusicRecording
duration: PT2M4S
duration ms: 124826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720317
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T07:03:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11078ede27043d5887076f7263c3c9185ae412cc488cb7b6b68e89f94cbd7415
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/NLA508720317
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 0x11078ede27043d5887076f7263c3c9185ae412cc488cb7b6b68e89f94cbd7415. 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/NLA508720317.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 1: "E voi ridete?" - "Si può sapere un poco"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.911
  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: 0.504
  additional property: Energy
    type: PropertyValue
    value: 0.184
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.321
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.588
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.769
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Oh, la saria da ridere!"
type: MusicRecording
duration: PT2M31S
duration ms: 151226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Elzbieta Szmytka
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720319
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:25:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6a060df2b1f05047c548b9ec3611909e0a21a2f65126945b1435b4042372030
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/NLA508720319
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 0xc6a060df2b1f05047c548b9ec3611909e0a21a2f65126945b1435b4042372030. 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/NLA508720319.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K.588 / Act 1: "Oh, la saria da ridere!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 167.509
  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: 0.463
  additional property: Energy
    type: PropertyValue
    value: 0.028
  additional property: Speechiness
    type: PropertyValue
    value: 0.236
  additional property: Acousticness
    type: PropertyValue
    value: 0.957
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.333
  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.299
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Eccovi il medico"
type: MusicRecording
duration: PT3M24S
duration ms: 204533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Elzbieta Szmytka
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720322
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T00:17:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb0ef902651affc71e4001383106958516cd048257dd50faba1c1618a89b7e7c1
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/NLA508720322
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 0xb0ef902651affc71e4001383106958516cd048257dd50faba1c1618a89b7e7c1. 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/NLA508720322.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 1: "Eccovi il medico"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.907
  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: 0.46
  additional property: Energy
    type: PropertyValue
    value: 0.05
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.208
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.306
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.734
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 1: "Dammi un bacio"
type: MusicRecording
duration: PT3M26S
duration ms: 206533
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Elzbieta Szmytka
by artist: José van Dam
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720324
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T10:21:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9fe483816d05ef872835d14446f395fc9a67f62bc83566319cf947cc9c35907
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/NLA508720324
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 0xa9fe483816d05ef872835d14446f395fc9a67f62bc83566319cf947cc9c35907. 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/NLA508720324.
  date published: 2026-07-08T08:56:20Z
audio: Così fan tutte, K.588 / Act 1: "Dammi un bacio"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.753
  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: 0.471
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.985
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.013
  additional property: Liveness
    type: PropertyValue
    value: 0.083
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.445
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.606
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 2: "La mano a me date" - "Oh che bella giornata!"
type: MusicRecording
duration: PT5M38S
duration ms: 338866
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Elzbieta Szmytka
by artist: Anne Sofie von Otter
by artist: Karita Mattila
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720329
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T17:45:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4184fa168bedcf936a54e606ee17ebcd3b7d736297c3b39ce6199ddee59415e2
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/NLA508720329
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 0x4184fa168bedcf936a54e606ee17ebcd3b7d736297c3b39ce6199ddee59415e2. 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/NLA508720329.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K.588 / Act 2: "La mano a me date" - "Oh che bella giornata!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.424
  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: 0.441
  additional property: Energy
    type: PropertyValue
    value: 0.094
  additional property: Speechiness
    type: PropertyValue
    value: 0.132
  additional property: Acousticness
    type: PropertyValue
    value: 0.963
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.154
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -29.223
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 2: "Ei parte... senti... ah no!"
type: MusicRecording
duration: PT1M34S
duration ms: 94826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720333
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T12:41:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x24e13703cec4cb3207be420b786be64451aaac202115620012e8ec4edd4f4976
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/NLA508720333
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 0x24e13703cec4cb3207be420b786be64451aaac202115620012e8ec4edd4f4976. 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/NLA508720333.
  date published: 2026-07-08T03:53:27Z
audio: Così fan tutte, K.588 / Act 2: "Ei parte... senti... ah no!"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.657
  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: 0.496
  additional property: Energy
    type: PropertyValue
    value: 0.032
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.134
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.607
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Così fan tutte, K.588 / Act 2: "Donne mie, la fate a tanti"
type: MusicRecording
duration: PT3M7S
duration ms: 187226
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Thomas Allen
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720336
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T20:38:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1ea45f9abdc40ce38afe2f52ab03e6a10e9bd796c3fb243ae09d7ea49210078a
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/NLA508720336
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 0x1ea45f9abdc40ce38afe2f52ab03e6a10e9bd796c3fb243ae09d7ea49210078a. 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/NLA508720336.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 2: "Donne mie, la fate a tanti"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.011
  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
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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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Così fan tutte, K.588 / Act 2: "In qual fiero" - "Tradito, schernito" - "Bravo, questa è costanza"
type: MusicRecording
duration: PT5M20S
duration ms: 320066
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: José van Dam
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720337
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720337
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3871d3c3706215474ea2b3a314d5e0a56be8639fab58b7139c8a532e64d62b7d. 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/NLA508720337.
  date published: 2026-07-08T08:56:20Z
audio: Così fan tutte, K.588 / Act 2: "In qual fiero" - "Tradito, schernito" - "Bravo, questa è costanza"
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Così fan tutte, K.588 / Act 2: "Come tutto congiura" - "L'abito di Ferrando"
type: MusicRecording
duration: PT2M48S
duration ms: 168600
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Thomas Allen
by artist: Elzbieta Szmytka
by artist: José van Dam
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720340
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720340
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf59321fd3ccdfd905e35116c5b47bc803d09ebdcd6d8947f50a0592fb893152. 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/NLA508720340.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 2: "Come tutto congiura" - "L'abito di Ferrando"
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Così fan tutte, K.588 / Act 2: "Tutti accusan le donne" - "Vittoria, padroncini!"
type: MusicRecording
duration: PT1M43S
duration ms: 103773
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Elzbieta Szmytka
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720343
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLA508720343
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 0xd1dedd41ebe9014e9c1d113c1951f313645bd088d41e8be0f27d11e9091959b7. 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/NLA508720343.
  date published: 2026-07-08T08:56:20Z
audio: Così fan tutte, K.588 / Act 2: "Tutti accusan le donne" - "Vittoria, padroncini!"
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  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Così fan tutte, K.588 / Act 2: "Miei signori, tutto è fatto"
type: MusicRecording
duration: PT3M26S
duration ms: 206826
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720347
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe142a27173233945fe4ac5c93f870f3020c438a221c7ccaa42393bbb161ff700
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/NLA508720347
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 0xe142a27173233945fe4ac5c93f870f3020c438a221c7ccaa42393bbb161ff700. 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/NLA508720347.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K.588 / Act 2: "Miei signori, tutto è fatto"
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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
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.454
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.239
  additional property: Loudness (dB)
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  additional property: Key Name
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Così fan tutte, K.588 / Act 2: "Sani e salvi"
type: MusicRecording
duration: PT3M27S
duration ms: 207466
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: José van Dam
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Elzbieta Szmytka
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720348
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e56bc1158c1bf4311a8833a2baacb84fd6e8d1010e17b97528f3251d2536e24
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/NLA508720348
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 0x0e56bc1158c1bf4311a8833a2baacb84fd6e8d1010e17b97528f3251d2536e24. 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/NLA508720348.
  date published: 2026-07-08T03:22:41Z
audio: Così fan tutte, K.588 / Act 2: "Sani e salvi"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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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
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.002
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.348
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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Così fan tutte, K.588 / Act 2: "Ah, signor, son rea di morte"
type: MusicRecording
duration: PT6M7S
duration ms: 367760
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Karita Mattila
by artist: Anne Sofie von Otter
by artist: Francisco Araiza
by artist: Thomas Allen
by artist: José van Dam
by artist: Elzbieta Szmytka
by artist: Academy of St. Martin in the Fields
by artist: Sir Neville Marriner
in album: Mozart: Così fan tutte
  type: MusicAlbum
  date published: 1990-09-05
genre: classical
genre: classical-era
isrc code: NLA508720349
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T05:04:36+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x9577daff391861df510c57d1e8e49cfbda2cba1421045ca46f8efa64fd627a1b
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/NLA508720349
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 0x9577daff391861df510c57d1e8e49cfbda2cba1421045ca46f8efa64fd627a1b. 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/NLA508720349.
  date published: 2026-07-08T03:20:19Z
audio: Così fan tutte, K.588 / Act 2: "Ah, signor, son rea di morte"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.985
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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    value: 0.108
  additional property: Loudness (dB)
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Beethoven: Symphony No. 9
type: MusicAlbum
date published: 1990-04-01
track: Symphony No. 9 in D minor, Op. 125 - "Choral" - 4.: 4. Presto - "O Freunde nicht diese Töne" -
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  duration: PT7M18S
  duration ms: 438760
  explicit: false
  by artist: Ludwig van Beethoven
  by artist: Samuel Ramey
  by artist: Anne Sofie von Otter
  by artist: Francisco Araiza
  by artist: Karita Mattila
  by artist: Academy of St Martin in the Fields Chorus
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  by artist: Sir Neville Marriner
  in album: Beethoven: Symphony No. 9
    type: MusicAlbum
    date published: 1990-04-01
  genre: classical
  genre: classical-piano
  genre: chamber-music
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  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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    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/NLA508723904
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    date published: 2026-07-08T08:56:20Z
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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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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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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 Planets, Op. 32: I. Mars, the Bringer of War
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track: The Girl with the Plums
track: Lost Love
track: Meeting Laura
track: Mussorgsky: Pictures at an Exhibition: Promenade I (Orch. Ravel, M. A 24)
track: Mussorgsky: Pictures at an Exhibition: X. The Hut on Fowl's Legs "Baba Yaga" (Orch. Ravel, M. A 24)
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OpenTimestamps Proof of Existence
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date published: 2026-07-08T03:53:27Z

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Mahler: Symphony No. 5 in C-Sharp Minor: IV. Adagietto. Sehr langsam
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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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subject of: OpenTimestamps Proof of Existence
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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Holst: The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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duration: PT8M2S
duration ms: 482666
explicit: false
by artist: Gustav Holst
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: The Berlin Years
  type: MusicAlbum
  date published: 2024-04-22
popularity: 4
genre: classical
genre: orchestra
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additional property: CopyrightID
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333499f30e617a385a6c297b577104029c2af134fa285403246df3d12084c9bf. 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/GBAYC0600915.
  date published: 2026-07-08T03:20:19Z
audio: Holst: The Planets, Op. 32: IV. Jupiter, the Bringer of Jollity
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  additional property: Speechiness
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  additional property: Acousticness
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The Girl with the Plums
type: MusicRecording
duration: PT5M27S
duration ms: 327880
explicit: false
by artist: Johnny Klimek
by artist: Reinhold Heil
by artist: Tom Tykwer
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
by artist: Chen Reiss
by artist: State Choir Latvija
in album: The Berlin Years
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  date published: 2024-04-22
popularity: 4
genre: soundtrack
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additional property: CopyrightID
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f58f9455675e033d364d4f64ce07a70204ae725a7981e97566b69412238594. 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/GBAYC0600939.
  date published: 2026-07-08T03:20:19Z
audio: The Girl with the Plums
  type: AudioObject
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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Lost Love
type: MusicRecording
duration: PT1M45S
duration ms: 105520
explicit: false
by artist: Johnny Klimek
by artist: Reinhold Heil
by artist: Tom Tykwer
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
by artist: State Choir Latvija
in album: The Berlin Years
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  date published: 2024-04-22
popularity: 4
genre: soundtrack
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc446c803a7a9c5a2bb394ec26ae4b5b97543421dd7c0d7b3631c09c0ec3aaa5. 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/GBAYC0600943.
  date published: 2026-07-08T03:20:19Z
audio: Lost Love
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Energy
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Meeting Laura
type: MusicRecording
duration: PT4M15S
duration ms: 255146
explicit: false
by artist: Johnny Klimek
by artist: Reinhold Heil
by artist: Tom Tykwer
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
by artist: Chen Reiss
in album: The Berlin Years
  type: MusicAlbum
  date published: 2024-04-22
popularity: 5
genre: soundtrack
isrc code: GBAYC0600945
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559e2fd07e09a05fdacbab22f58baaa5fe334bc8e337c105cd4467b228a832c6. 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/GBAYC0600945.
  date published: 2026-07-08T03:22:41Z
audio: Meeting Laura
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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Mussorgsky: Pictures at an Exhibition: Promenade I (Orch. Ravel, M. A 24)
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duration: PT1M42S
duration ms: 102873
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: The Berlin Years
  type: MusicAlbum
  date published: 2024-04-22
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704323
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
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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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26ca8ace892304130a278913cc6814037b04375a67386955db3bbc16f2490da. 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/GBAYC0704323.
  date published: 2026-07-08T03:20:19Z
audio: Mussorgsky: Pictures at an Exhibition: Promenade I (Orch. Ravel, M. A 24)
  type: AudioObject
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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Mussorgsky: Pictures at an Exhibition: X. The Hut on Fowl's Legs "Baba Yaga" (Orch. Ravel, M. A 24)
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duration: PT3M25S
duration ms: 205573
explicit: false
by artist: Modest Mussorgsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: The Berlin Years
  type: MusicAlbum
  date published: 2024-04-22
popularity: 3
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
isrc code: GBAYC0704336
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bced18d5d04c9b5dc6ba43cd319a578147131866fafda17587923523ddfac0. 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/GBAYC0704336.
  date published: 2026-07-08T03:53:27Z
audio: Mussorgsky: Pictures at an Exhibition: X. The Hut on Fowl's Legs "Baba Yaga" (Orch. Ravel, M. A 24)
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  additional property: Mode (Major/Minor)
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  additional property: Danceability
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  additional property: Acousticness
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Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 14a, Pas de deux. Andante maestoso
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duration: PT5M6S
duration ms: 306533
explicit: false
by artist: Pyotr Ilyich Tchaikovsky
by artist: Sir Simon Rattle
by artist: Berliner Philharmoniker
in album: The Berlin Years
  type: MusicAlbum
  date published: 2024-04-22
popularity: 3
isrc code: GBAYC1000876
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: 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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aba106f9ba6dde364c4a9942d3660cc25fc9961ef7f244e32111db82829c3e3. 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/GBAYC1000876.
  date published: 2026-07-08T03:53:27Z
audio: Tchaikovsky: The Nutcracker, Op. 71, Act 2: No. 14a, Pas de deux. Andante maestoso
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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track: Habanera (From “Carmen”, WD. 31)
track: "Libiamo ne'lieti calici" (Brindisi) - Violetta
track: "O Mio Babbino Caro" (From Gianni Schicchi)
track: Carmen, Act II: La fleur que tu m'avais jetée "Flower Song"
track: Lascia ch'io pianga
track: Madama Butterfly, SC 74, Act II: Un bel dì vedremo
track: Il trovatore, Act III: Di quella pira
track: Aida / Act 1: "Se quel guerrier io fossi!..Celeste Aida"
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track: Le nozze di Figaro, K.492 / Act 3: "Dove sono i bei momenti"
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track: Nabucco / Act 3: Va, pensiero
track: L'elisir d'amore / Act 2: "Una furtiva lagrima"
track: Madama Butterfly: One Fine Day
track: Carmen / Act II: "Votre toast, je peux vous le rendre"
track: Il barbiere di Siviglia / Act I: No. 2 Cavatina: "Largo al factotum"
track: Tosca / Act 3: "E lucevan le stelle"

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OpenTimestamps Proof of Existence
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date published: 2026-07-07T14:50:41Z

Le nozze di Figaro, K.492 / Act 1: "Non più andrai"
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Habanera (From “Carmen”, WD. 31)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-06T06:56:49Z
audio: Habanera (From “Carmen”, WD. 31)
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"Libiamo ne'lieti calici" (Brindisi) - Violetta
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: "Libiamo ne'lieti calici" (Brindisi) - Violetta
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audio: "O Mio Babbino Caro" (From Gianni Schicchi)
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Carmen, Act II: La fleur que tu m'avais jetée "Flower Song"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Carmen, Act II: La fleur que tu m'avais jetée "Flower Song"
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Lascia ch'io pianga
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by artist: Lesley Garrett
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subject of: OpenTimestamps Proof of Existence
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audio: Lascia ch'io pianga
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Madama Butterfly, SC 74, Act II: Un bel dì vedremo
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Madama Butterfly, SC 74, Act II: Un bel dì vedremo
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Il trovatore, Act III: Di quella pira
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duration: PT3M42S
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by artist: Rosalind Plowright
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Il trovatore, Act III: Di quella pira
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Aida / Act 1: "Se quel guerrier io fossi!..Celeste Aida"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Aida / Act 1: "Se quel guerrier io fossi!..Celeste Aida"
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Norma / Act 1: Casta Diva
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by artist: Sir Charles Mackerras
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popularity: 7
genre: opera
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subject of: OpenTimestamps Proof of Existence
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audio: Norma / Act 1: Casta Diva
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Le nozze di Figaro, K.492 / Act 3: "Dove sono i bei momenti"
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-07T18:39:05Z
audio: Le nozze di Figaro, K.492 / Act 3: "Dove sono i bei momenti"
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La Wally / Act 1: "Ebben? Ne andrò lontana"
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBF079541401
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-07T16:07:00Z
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 0x501ae9ecf032a7dc6fb4bca662e17a67706abea8d11c9127e9cb1d7abd6b213c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBF079541401.
  date published: 2026-07-07T16:07:00Z
audio: La Wally / Act 1: "Ebben? Ne andrò lontana"
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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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Nabucco / Act 3: Va, pensiero
type: MusicRecording
duration: PT4M10S
duration ms: 250440
explicit: false
by artist: Giuseppe Verdi
by artist: Russell Watson
by artist: Neil Jason
by artist: Bashiri Johnson
by artist: The Metro Voices
by artist: Royal Philharmonic Orchestra
by artist: Nicholas Dodd
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 8
genre: classical
genre: opera
isrc code: GBBBB2011301
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBB2011301
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58956eda69971084c24dd641c9cb229ce1835d05f2067a4f98cd4ca55956b086. 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/GBBBB2011301.
  date published: 2026-07-08T03:53:27Z
audio: Nabucco / Act 3: Va, pensiero
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.135
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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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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L'elisir d'amore / Act 2: "Una furtiva lagrima"
type: MusicRecording
duration: PT4M40S
duration ms: 280040
explicit: false
by artist: Gaetano Donizetti
by artist: Juan Diego Flórez
by artist: Riccardo Frizza
by artist: Orchestra Sinfonica di Milano Giuseppe Verdi
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 5
genre: opera
isrc code: GBBBA0200400
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0200400
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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 0x13c56ad6565958fde33d18f3d41a366e6011f1be90c84abcf2f069a60d5cd38c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBBBA0200400.
  date published: 2026-07-06T07:16:32Z
audio: L'elisir d'amore / Act 2: "Una furtiva lagrima"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.16
  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: Key Name
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Madama Butterfly: One Fine Day
type: MusicRecording
duration: PT3M30S
duration ms: 210533
explicit: false
by artist: Giacomo Puccini
by artist: Hayley Westenra
by artist: Irish Film Orchestra
by artist: Nick Ingman
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 2
isrc code: GBBBA0642950
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x510c6ee9f4f4c90cb8e315a2dd33c9d400812f7b14dff487fa42cf720a79e148
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBBBA0642950
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x510c6ee9f4f4c90cb8e315a2dd33c9d400812f7b14dff487fa42cf720a79e148. 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/GBBBA0642950.
  date published: 2026-07-08T03:20:19Z
audio: Madama Butterfly: One Fine Day
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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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: Valence (Positivity)
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Carmen / Act II: "Votre toast, je peux vous le rendre"
type: MusicRecording
duration: PT3M47S
duration ms: 227746
explicit: false
by artist: Georges Bizet
by artist: Barry Wordsworth
by artist: Bryn Terfel
by artist: London Symphony Orchestra
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 5
genre: classical
genre: opera
isrc code: DEN960330501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEN960330501
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0ce4350c53aa18eefc9b9471b2fe1675cee63e9889833272a393808552cadb. 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/DEN960330501.
  date published: 2026-07-08T03:20:19Z
audio: Carmen / Act II: "Votre toast, je peux vous le rendre"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.46
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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Il barbiere di Siviglia / Act I: No. 2 Cavatina: "Largo al factotum"
type: MusicRecording
duration: PT4M56S
duration ms: 296386
explicit: false
by artist: Gioachino Rossini
by artist: Dmitri Hvorostovsky
by artist: Philharmonia Orchestra
by artist: Ion Marin
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 3
genre: classical
genre: opera
isrc code: NLA509108001
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:00:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x810ab94a7bf5b7a85cdc70138725a361a5e8aa47395d733986906d64f563d926
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/NLA509108001
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ab94a7bf5b7a85cdc70138725a361a5e8aa47395d733986906d64f563d926. 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/NLA509108001.
  date published: 2026-07-08T03:53:27Z
audio: Il barbiere di Siviglia / Act I: No. 2 Cavatina: "Largo al factotum"
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Mode Name
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Tosca / Act 3: "E lucevan le stelle"
type: MusicRecording
duration: PT3M16S
duration ms: 196360
explicit: false
by artist: Giacomo Puccini
by artist: José Carreras
by artist: Orchestra of the Royal Opera House, Covent Garden
by artist: Sir Colin Davis
in album: The No. 1 Opera Album 2007
  type: MusicAlbum
  date published: 2007-01-01
popularity: 4
isrc code: NLA507510632
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-26T18:59:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02f043e86f118819fabbd60d18e81e97c8fadd6109a15ed39b6473d09d76bc4f
additional property: OTSHash
additional property: OTSBitcoinBlock
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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/NLA507510632
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