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album: Ivanovs: Symphony No. 19
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album: Sibelius, Bartók, Pone, Kalsons: Violin Concertos, Valdis Zariņš
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album: Jānis Ivanovs: Piano Concerto in D Minor & Symphonies Nos. 14 & 20
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album: Vasks: Prayer
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album: Christmas by the Amber Sea
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album: Plakidis: Glance Back
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album: Ivanovs: Symphonies Nos. 17 & 18
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album: Ivanovs: Symphonies Nos. 15 & 16
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album: Ķeniņš: Symphonies Nos. 4 & 6 & Canzona sonata
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album: Ķeniņš: Symphony No. 1 & 2 Concertos
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album: Ķeniņš: Symphonies Nos. 5 & 8 and Aria per corde
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album: Ķeniņš: Symphonies Nos. 4 & 6 & Canzona sonata
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album: Tālivaldis Ķeniņš: Violin Concerto, Concerto for 5 Percussionists and Orchestra, Beatae Voces Tenebrae
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album: Beatae Voces Tenebrae
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album: Halvorsen: Stage Music 2
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album: Arturs Maskats: Accordion Concerto, Tango, Cantus diatonicus & My River Runs to Thee
album: Ramans: Divertissement for Flute, Trumpet, Piano, Percussion and String Orchestra – Concerto for Saxophone and String Orchestra – Concerto Leggiero for Nine Jazz Instruments and String Orches
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album: In the Shade of a Sea
album: American Viola Concertos
album: Fossegrimen, Greeting to Roosevelt
album: James Cohn: Concertos and Tone Poems
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album: Vitols: Dramatic Overture / Fantasie / Spiriditis / 'Autumn Song'
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album: Atskatīšanās
track: Il barbiere di Siviglia (The Barber of Seville), Act I: Una voce poco fa qui nel cor mi risuono
track: La clemenza di Tito, K. 621: Act II: Deh per questo istante solo
track: La Cenerentola (Cinderella), Act II: Nacqui all'affanno e al pianto
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I: Non so piu cosa son, cosa faccio
track: Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II: Voi, che sapete che cosa e amor
track: La clemenza di Tito, K. 621: Act I: Parto, ma tu ben mio
track: Anna Bolena, Act II: Per questa fiamma indomita alla virtu preposta
track: I Capuleti e i Montecchi: Capuleti e i Montecchi, Act I: Se Romeo t'uccise un figlio
track: La favorita, Act III: Fia dunque vero, oh ciel!
track: Werther, Act III: Werther! Werther! Qui m'aurait dit la place

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Halvorsen: Stage Music 2
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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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Alnaes: Symphonies Nos. 1 & 2
type: MusicAlbum
date published: 2009-01-01
track: Symphony No. 1 in C Minor, Op. 7: I. Allegro patetico
  type: MusicRecording
  duration: PT12M45S
  duration ms: 765346
  explicit: false
  by artist: Eyvind Alnæs
  by artist: Latvian National Symphony Orchestra
  by artist: Terje Mikkelsen
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    type: MusicAlbum
    date published: 2009-01-01
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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: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/960500
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWSJ0900601
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T03:13:03Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0bea2d873173b84f96efa3829d6c98019856501dc0387bc18b932f0014737c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEWSJ0900601 — a six-check JSON result.
    date published: 2026-08-01T03:13:03Z
  audio: Symphony No. 1 in C Minor, Op. 7: I. Allegro patetico
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Speechiness
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    additional property: Valence (Positivity)
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Svendsen, J.: Orchestral Music
type: MusicAlbum
date published: 2008-01-01
track: Variations on a Norwegian Folktune, Op. 31: I fjol gjaett'e gjeitinn
  type: MusicRecording
  duration: PT5M35S
  duration ms: 335093
  explicit: false
  by artist: Johan Svendsen
  by artist: Latvian National Symphony Orchestra
  by artist: Terje Mikkelsen
  in album: Svendsen, J.: Orchestral Music
    type: MusicAlbum
    date published: 2008-01-01
  genre: late-romantic-era
  genre: norwegian-classical
  isrc code: DEB200837216
  additional property: CopyrightID
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    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
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200837216
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-02T03:55:08Z
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    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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track: Andante funebre
  type: MusicRecording
  duration: PT8M33S
  duration ms: 513266
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  by artist: Johan Svendsen
  by artist: Latvian National Symphony Orchestra
  by artist: Terje Mikkelsen
  in album: Svendsen, J.: Orchestral Music
    type: MusicAlbum
    date published: 2008-01-01
  genre: late-romantic-era
  genre: norwegian-classical
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  additional property: CopyrightID
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    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cf9be66380b5b992f4874d9cb7916d498c2a87540d66cdee8f5b760c2b6a89. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200837214 — a six-check JSON result.
    date published: 2026-07-08T03:22:41Z
  audio: Andante funebre
    type: AudioObject
    additional property: Tempo (BPM)
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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: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Davidoff: Cello Concertos Nos. 1 and 2 / Tchaikovsky: Variations On A Rococo Theme
type: MusicAlbum
date published: 2007-01-01
track: Cello Concerto No. 1 in B Minor, Op. 5: I. Allegro moderato
  type: MusicRecording
  duration: PT8M45S
  duration ms: 525800
  explicit: false
  by artist: Karl Davidov
  by artist: Wen-Sinn Yang
  by artist: Latvian National Symphony Orchestra
  by artist: Terje Mikkelsen
  in album: Davidoff: Cello Concertos Nos. 1 and 2 / Tchaikovsky: Variations On A Rococo Theme
    type: MusicAlbum
    date published: 2007-01-01
  isrc code: DEB200726301
  additional property: CopyrightID
  additional property: CopyrightStatus
    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
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200726301
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499f39e378175bf110a35e87a1d668f284792c9a69fd056f45355078260647ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEB200726301 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      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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In the Shade of a Sea
type: MusicAlbum
date published: 2005-06-07

American Viola Concertos
type: MusicAlbum
date published: 2003-02-01
track: Concerto for Viola and Orchestra: Adagio con fantaisa
  type: MusicRecording
  duration: PT9M22S
  duration ms: 562733
  explicit: false
  by artist: Latvian National Symphony Orchestra
  by artist: Randolph Kelly
  in album: American Viola Concertos
    type: MusicAlbum
    date published: 2003-02-01
  genre: orchestra
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  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4870d4b2ab47f418621839ca75c0979baa6b4594befb3325ff5d744b8b070d54. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10614050 — a six-check JSON result.
    date published: 2026-07-29T14:28:24Z
  audio: Concerto for Viola and Orchestra: Adagio con fantaisa
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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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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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Viola Concerto: Allegro brillante
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  by artist: Randolph Kelly
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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b71d97fa962bcbf850852b55877725441a075c2c987baaa6ad4270e34de52c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10614053 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
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    additional property: Tempo (BPM)
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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: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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    type: MusicAlbum
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  additional property: CopyrightStatus
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Concerto for Viola and Orchestra: Gently flowing
track: Concerto for Viola and Orchestra: With verve and drive throughout

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block-height/960309

OTSVerificationAPI
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OTSTimestamp
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OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1f4d40acad1add7ee8e481370480a44ec4e57eac8fc3cfcb87b1dd6870a35a. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10614056 — a six-check JSON result.
date published: 2026-07-30T20:35:49Z

Concerto for Viola and Orchestra: Gently flowing
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 115.562
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: 0.26
additional property: Energy
  type: PropertyValue
  value: 0.058
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.962
additional property: Instrumentalness
  type: PropertyValue
  value: 0.843
additional property: Liveness
  type: PropertyValue
  value: 0.121
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.126
additional property: Loudness (dB)
  type: PropertyValue
  value: -31.087
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major

Concerto for Viola and Orchestra: With verve and drive throughout
type: MusicRecording
duration: PT5M15S
duration ms: 315213
explicit: false
by artist: Latvian National Symphony Orchestra
by artist: Randolph Kelly
in album: American Viola Concertos
  type: MusicAlbum
  date published: 2003-02-01
genre: orchestra
isrc code: USAB10614058
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T18:45:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x779a37faab78a895fb4924d0105e8ea8725e33b0a4dcdb1cda2bb5444d6df397
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/USAB10614058
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779a37faab78a895fb4924d0105e8ea8725e33b0a4dcdb1cda2bb5444d6df397. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAB10614058 — a six-check JSON result.
  date published: 2026-07-08T03:22:41Z
audio: Concerto for Viola and Orchestra: With verve and drive throughout
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.793
  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: 0.344
  additional property: Energy
    type: PropertyValue
    value: 0.19
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.972
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.9
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.396
  additional property: Loudness (dB)
    type: PropertyValue
    value: -28.329
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Fossegrimen, Greeting to Roosevelt
type: MusicAlbum
date published: 2002-04-12

James Cohn: Concertos and Tone Poems
type: MusicAlbum
date published: 2002

Opera Arias (Favourite): Garanca, Elina - Mozart, W.A. / Rossini, G. / Bellini, V. / Donizetti, G. / Massenet, J.
type: MusicAlbum
date published: 2001-01-01

Romualds Karlsons Concertos
type: MusicAlbum
date published: 2000-10-24

Five Tenors at Christmas
type: MusicAlbum
date published: 1999-12-03
track: Eņģeļus mēs dzirdējām
  type: MusicRecording
  duration: PT3M23S
  duration ms: 203981
  explicit: false
  by artist: Johans Burmanis
  by artist: Pieci Tenori
  by artist: Latvian National Symphony Orchestra
  in album: Five Tenors at Christmas
    type: MusicAlbum
    date published: 1999-12-03
  isrc code: LVA109900046
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T11:11:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x01dd5eebab9a1b3839efa6e01a2af110371fc4e38ff6ecd5e38803fce13d6157
  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/LVA109900046
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01dd5eebab9a1b3839efa6e01a2af110371fc4e38ff6ecd5e38803fce13d6157. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVA109900046 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Eņģeļus mēs dzirdējām
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 87.812
    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: 0.237
    additional property: Energy
      type: PropertyValue
      value: 0.151
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.983
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.022
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.318
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.449
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Panis Angelicus
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227546
  explicit: false
  by artist: Cēzars Franks
  by artist: Pieci Tenori
  by artist: Latvian National Symphony Orchestra
  in album: Five Tenors at Christmas
    type: MusicAlbum
    date published: 1999-12-03
  isrc code: LVF251400010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T09:14:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x62fa955c95f22f23f6b024622e0e5f023b4fa58540a9ed37b23eb61a799d7f47
  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/LVF251400010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fa955c95f22f23f6b024622e0e5f023b4fa58540a9ed37b23eb61a799d7f47. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVF251400010 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Panis Angelicus
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.625
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.13
    additional property: Energy
      type: PropertyValue
      value: 0.195
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.978
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.02
    additional property: Liveness
      type: PropertyValue
      value: 0.234
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.037
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.575
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Pošam visu greznā rotā
  type: MusicRecording
  duration: PT2M9S
  duration ms: 129632
  explicit: false
  by artist: Ivars Gaide
  by artist: Pieci Tenori
  by artist: Latvian National Symphony Orchestra
  in album: Five Tenors at Christmas
    type: MusicAlbum
    date published: 1999-12-03
  isrc code: LVA109900057
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T07:49:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbc9c759ac33a23077b933dad494b0a44f88ca357499e420616c1f35835be974e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960368
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Pošam visu greznā rotā

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/960368

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVA109900057

OTSTimestamp
type: PropertyValue
value: 2026-07-31T08:26:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9c759ac33a23077b933dad494b0a44f88ca357499e420616c1f35835be974e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVA109900057 — a six-check JSON result.
date published: 2026-07-31T08:26:41Z

Pošam visu greznā rotā
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 138.108
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: 0.356
additional property: Energy
  type: PropertyValue
  value: 0.145
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.98
additional property: Instrumentalness
  type: PropertyValue
  value: 0.586
additional property: Liveness
  type: PropertyValue
  value: 0.77
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.469
additional property: Loudness (dB)
  type: PropertyValue
  value: -22.916
additional property: Key Name
  type: PropertyValue
  value: F
additional property: Mode Name
  type: PropertyValue
  value: Major

Ivanovs: Symphonies Nos. 5 and 12
type: MusicAlbum
date published: 1996-11-08

Vitols: Dramatic Overture / Fantasie / Spiriditis / 'Autumn Song'
type: MusicAlbum
date published: 1995-05-19

Ivanovs: Symphony No. 18
type: MusicAlbum
date published: 1981-12-07

Atskatīšanās
type: MusicAlbum
date published: 2019-10-18

Il barbiere di Siviglia (The Barber of Seville), Act I: Una voce poco fa qui nel cor mi risuono
type: MusicRecording
duration: PT6M18S
duration ms: 378386
explicit: false
by artist: Gioachino Rossini
by artist: Elina Garanca
by artist: Latvian National Symphony Orchestra
by artist: Alexandrs Vilumanis
in album: Opera Arias (Favourite): Garanca, Elina - Mozart, W.A. / Rossini, G. / Bellini, V. / Donizetti, G. / Massenet, J.
  type: MusicAlbum
  date published: 2001-01-01
popularity: 4
genre: classical
genre: opera
isrc code: FINDE0100100
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T21:17:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe1c947360b085464c1ce2ad1659eea4248ee1f41cff221f0c5bc3ed336634dd5
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/FINDE0100100
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1c947360b085464c1ce2ad1659eea4248ee1f41cff221f0c5bc3ed336634dd5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE0100100 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Il barbiere di Siviglia (The Barber of Seville), Act I: Una voce poco fa qui nel cor mi risuono
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 118.528
  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: 0.331
  additional property: Energy
    type: PropertyValue
    value: 0.046
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.16
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.074
  additional property: Loudness (dB)
    type: PropertyValue
    value: -27.764
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major

La clemenza di Tito, K. 621: Act II: Deh per questo istante solo
type: MusicRecording
duration: PT6M22S
duration ms: 382253
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Elina Garanca
by artist: Latvian National Symphony Orchestra
by artist: Alexandrs Vilumanis
in album: Opera Arias (Favourite): Garanca, Elina - Mozart, W.A. / Rossini, G. / Bellini, V. / Donizetti, G. / Massenet, J.
  type: MusicAlbum
  date published: 2001-01-01
popularity: 3
genre: classical
genre: classical-era
genre: classical-piano
genre: opera
genre: chamber-music
genre: concerto
isrc code: FINDE0100098
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T20:52:59+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2f1f40ef6073449bcd49ffad3ce0579a987f9e2dfec2b7c1f6dff8da5bb6b11
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE0100098
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f1f40ef6073449bcd49ffad3ce0579a987f9e2dfec2b7c1f6dff8da5bb6b11. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE0100098 — a six-check JSON result.
  date published: 2026-07-30T21:35:24Z
audio: La clemenza di Tito, K. 621: Act II: Deh per questo istante solo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.855
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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La Cenerentola (Cinderella), Act II: Nacqui all'affanno e al pianto
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by artist: Latvian National Symphony Orchestra
by artist: Alexandrs Vilumanis
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act I: Non so piu cosa son, cosa faccio
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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Die Hochzeit des Figaro, K. 492, 3. Akt: Canzonetta sull aria… Che soave zeffiretto (Die Verurteilten): Act II: Voi, che sapete che cosa e amor
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popularity: 2
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:20:19Z
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La clemenza di Tito, K. 621: Act I: Parto, ma tu ben mio
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popularity: 2
genre: classical
genre: classical-era
genre: classical-piano
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genre: chamber-music
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
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Anna Bolena, Act II: Per questa fiamma indomita alla virtu preposta
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popularity: 2
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T12:24:41Z
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I Capuleti e i Montecchi: Capuleti e i Montecchi, Act I: Se Romeo t'uccise un figlio
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
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La favorita, Act III: Fia dunque vero, oh ciel!
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audio: La favorita, Act III: Fia dunque vero, oh ciel!
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Werther, Act III: Werther! Werther! Qui m'aurait dit la place
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