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subject of: OpenTimestamps Proof of Existence
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album: 40 Tracks for 40 Years: Delos' 40th Anniversary Celebration!
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album: Opera Arias (Baritone): Hvorostovsky, Dmitri - Borodin, A.P. / Mussorgsky, M.P. / Rubinstein, A. / Wagner, R. / Giordano, U. / Verdi, G.
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  track: Tannhäuser: Tannhauser: O du mein holder Abendstern
  track: Andrea Chénier, Andrea Chenier, Act III: Nemico della Patria
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    additional property: OTSVerifyInstructions
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
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  track: Faust, CG 4, Faust, Act I: Avant de quitter ces lieux
  track: Carmen, WD 31, Carmen, Act II: Toreado Song. Votre toast, je peux vous le rendre
  track: Hamlet, Act II: O vin, dissipe la tristesse
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    by artist: Constantine Orbelian
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      date published: 2026-07-08T03:53:27Z
    audio: Hamlet, Act II: O vin, dissipe la tristesse
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  track: Prince Igor (Knyaz Igor), Act II: Ni sna ne otdikha
  track: Tosca, S. 69, Tosca, Act I: Tre sbirri, una carrozza, "Te Deum"
album: Opera Gala - 35Th Anniversary (A Tribute To Delos Founder Amelia S. Haygood)
album: Verdi Opera Scenes
album: Verdi: Arias
album: Dvořák, Glazunov & Kaufmann: Cello Concerto
album: Arensky, A.S.: Raphael [Opera] / Songs and Romances
album: Opera Arias (Mezzo-Soprano): Domashenko, Marina - Cilea, F. / Saint-Saens, C. / Mussorgsky, M.P. / Rimsky-Korsakov, N.A. / Prokofiev, S.
album: Singing of Love
album: Laugh with Classical Music
album: Classical Caffeine
album: Classical Wellness

Tannhäuser: Tannhauser: O du mein holder Abendstern
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by artist: Richard Wagner
by artist: Dmitri Hvorostovsky
by artist: Russia Spiritual Revival Choir
by artist: Philharmonia of Russia
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popularity: 5
genre: classical
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: Tannhäuser: Tannhauser: O du mein holder Abendstern
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Faust, CG 4, Faust, Act I: Avant de quitter ces lieux
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by artist: Dmitri Hvorostovsky
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  date published: 2026-07-08T03:22:41Z
audio: Faust, CG 4, Faust, Act I: Avant de quitter ces lieux
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Carmen, WD 31, Carmen, Act II: Toreado Song. Votre toast, je peux vous le rendre
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  date published: 2026-07-08T03:53:27Z
audio: Carmen, WD 31, Carmen, Act II: Toreado Song. Votre toast, je peux vous le rendre
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Prince Igor (Knyaz Igor), Act II: Ni sna ne otdikha
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by artist: Dmitri Hvorostovsky
by artist: Russia Spiritual Revival Choir
by artist: Philharmonia of Russia
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  date published: 2007-01-01
popularity: 6
genre: classical
genre: late-romantic-era
genre: early-modern-classical
genre: russian-romanticism
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  date published: 2026-07-31T12:24:41Z
audio: Prince Igor (Knyaz Igor), Act II: Ni sna ne otdikha
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additional property: OTSVerifyInstructions
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Tosca, S. 69, Tosca, Act I: Tre sbirri, una carrozza, "Te Deum"
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duration: PT3M53S
duration ms: 233666
explicit: false
by artist: Giacomo Puccini
by artist: Dmitri Hvorostovsky
by artist: Russia Spiritual Revival Choir
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
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  date published: 2007-01-01
popularity: 4
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T08:26:41Z
audio: Tosca, S. 69, Tosca, Act I: Tre sbirri, una carrozza, "Te Deum"
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Un ballo in maschera, Act II: Ecco l'orrido campo - Ma dall'arido stelo
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duration: PT9M9S
duration ms: 549573
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by artist: Giuseppe Verdi
by artist: Sondra Radvanovsky
by artist: Moscow Academy of Choral Art
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
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genre: classical
genre: opera
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T08:56:20Z
audio: Un ballo in maschera, Act II: Ecco l'orrido campo - Ma dall'arido stelo
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La forza del destino, Act IV: Pace, pace mio Dio!
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by artist: Philharmonia of Russia
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genre: classical
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additional property: OTSVerifyInstructions
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  date published: 2026-07-08T03:22:41Z
audio: La forza del destino, Act IV: Pace, pace mio Dio!
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Il trovatore, Act I: Tace la notte!
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by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Verdi: Arias
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genre: classical
genre: opera
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  date published: 2026-07-31T18:48:12Z
audio: Il trovatore, Act I: Tace la notte!
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Il trovatore, Act IV: D'amor sull'ali rosee vanne
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by artist: Constantine Orbelian
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genre: classical
genre: opera
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  date published: 2026-08-01T04:30:37Z
audio: Il trovatore, Act IV: D'amor sull'ali rosee vanne
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Il corsaro, Act I: Non so le tetre immagini
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genre: classical
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  date published: 2026-07-31T23:30:38Z
audio: Il corsaro, Act I: Non so le tetre immagini
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    type: PropertyValue
    value: 0.274
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.078
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.256
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USASX1040404
additional property: CopyrightID
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: 960478
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T23:30:38+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1040404
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960478
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960478
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T23:30:38+00:00
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

Parlami d'amore, Mariù (Arr. L. Logi)
type: MusicRecording
duration: PT3M9S
duration ms: 189685
explicit: false
by artist: Cesare Andrea Bixio
by artist: Dmitri Hvorostovsky
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
isrc code: USASX1856515
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T04:08:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5eaccfcc6fa9400359090a31ea3595f406f7654b87eead5784913247fe09fe24
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/USASX1856515
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
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x5eaccfcc6fa9400359090a31ea3595f406f7654b87eead5784913247fe09fe24. 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/USASX1856515.
  date published: 2026-07-08T03:20:19Z
audio: Parlami d'amore, Mariù (Arr. L. Logi)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 104.687
  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: 0.246
  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.228
  additional property: Liveness
    type: PropertyValue
    value: 0.361
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.206
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.663
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

Don Carlo: O Carlo, ascolta
type: MusicRecording
duration: PT4M11S
duration ms: 251443
explicit: false
by artist: Giuseppe Verdi
by artist: Dmitri Hvorostovsky
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca708f52c6dd0ee16af8bedb59a8f1d938dc02e238cd4e11bbe2cf07b808daac. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/USASX1856503.
  date published: 2026-07-31T05:49:18Z
audio: Don Carlo: O Carlo, ascolta
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.858
  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: 0.185
  additional property: Energy
    type: PropertyValue
    value: 0.215
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.131
  additional property: Liveness
    type: PropertyValue
    value: 0.812
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.082
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.235
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USASX1856503
additional property: CopyrightID
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: 960355
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T05:49:18+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856503
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960355
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960355
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T05:49:18+00:00
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

Don Giovanni, K. 527: Deh vieni alla finestra
type: MusicRecording
duration: PT2M50S
duration ms: 170155
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Dmitri Hvorostovsky
by artist: Moscow Chamber Orchestra
by artist: Philharmonia of Russia
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf863dc33316c815ef46e456256a2f89b35fe6da70f5b38ac269740c351c8b37a. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USASX1856504.
  date published: 2026-07-30T08:30:10Z
audio: Don Giovanni, K. 527: Deh vieni alla finestra
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.595
  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: 0.356
  additional property: Energy
    type: PropertyValue
    value: 0.156
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.028
  additional property: Liveness
    type: PropertyValue
    value: 0.692
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.321
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.461
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USASX1856504
additional property: CopyrightID
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: 960229
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T08:30:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856504
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960229
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960229
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T08:30:10+00:00
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

Pagliacci: Prologue - Si può? Si può?
type: MusicRecording
duration: PT5M38S
duration ms: 338586
explicit: false
by artist: Ruggero Leoncavallo
by artist: Dmitri Hvorostovsky
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
genre: italian-opera
genre: italian-romanticism
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9da2516fa98f67430260cf300b6ea02be5f97f2059b06d657e450ceda5d9d3b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/USASX1856505.
  date published: 2026-07-31T08:38:45Z
audio: Pagliacci: Prologue - Si può? Si può?
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.602
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.293
  additional property: Energy
    type: PropertyValue
    value: 0.206
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.976
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.004
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.136
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.074
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USASX1856505
additional property: CopyrightID
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: 960370
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T08:38:45+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856505
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960370
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960370
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:38:45+00:00
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

Faust, CG 4: Avant de quitter ces lieux
type: MusicRecording
duration: PT4M11S
duration ms: 251516
explicit: false
by artist: Charles Gounod
by artist: Dmitri Hvorostovsky
by artist: Moscow Chamber Orchestra
by artist: Philharmonia of Russia
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf460413ebba10f56b0bce8410d863319b36cb3fa606ad603060c5869974106d. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USASX1856506.
  date published: 2026-07-31T04:14:58Z
audio: Faust, CG 4: Avant de quitter ces lieux
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.093
  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: 0.213
  additional property: Energy
    type: PropertyValue
    value: 0.273
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.952
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.253
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.159
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.739
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USASX1856506
additional property: CopyrightID
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: 960344
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856506
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960344
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960344
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T04:14:58+00:00
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

Tannhäuser, WWV 70: O du mein holder Abendstern
type: MusicRecording
duration: PT4M43S
duration ms: 283287
explicit: false
by artist: Richard Wagner
by artist: Dmitri Hvorostovsky
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b1786a0981bebc71f526f18d967d97a93111bbff74809a8b69d96aa49ee855. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/USASX1856507.
  date published: 2026-07-31T10:06:30Z
audio: Tannhäuser, WWV 70: O du mein holder Abendstern
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.347
  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: 0.278
  additional property: Energy
    type: PropertyValue
    value: 0.202
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.966
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.052
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.054
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.241
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: USASX1856507
additional property: CopyrightID
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: 960387
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T10:06:30+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856507
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960387
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960387
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T10:06:30+00:00
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

O sole mio (Arr. G. Chiaramello)
type: MusicRecording
duration: PT3M37S
duration ms: 217576
explicit: false
by artist: Eduardo di Capua
by artist: Dmitri Hvorostovsky
by artist: Philharmonia of Russia
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc88e6f13fd522772ad9b1d834e5fad6a30f5d106c24753bd6c812144e0e681. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USASX1856516.
  date published: 2026-07-30T14:44:50Z
audio: O sole mio (Arr. G. Chiaramello)
  type: AudioObject
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  additional property: Energy
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  additional property: Speechiness
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additional property: CopyrightID
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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

Danceability
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value: 0.305

Energy
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Speechiness
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Acousticness
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Instrumentalness
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value: 0.001

Liveness
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value: 0.092

Valence (Positivity)
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value: 0.315

Loudness (dB)
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Opera Gala - 35Th Anniversary (A Tribute To Delos Founder Amelia S. Haygood)
type: MusicAlbum
date published: 2008-01-01

Verdi Opera Scenes
type: MusicAlbum
date published: 2011-02-01

Verdi: Arias
type: MusicAlbum
date published: 2010-04-27
track: Un ballo in maschera, Act II: Ecco l'orrido campo - Ma dall'arido stelo
track: La forza del destino, Act IV: Pace, pace mio Dio!
track: Il trovatore, Act I: Tace la notte!
track: Il trovatore, Act IV: D'amor sull'ali rosee vanne
track: Il corsaro, Act I: Non so le tetre immagini

Dvořák, Glazunov & Kaufmann: Cello Concerto
type: MusicAlbum
date published: 2006-11-08

Arensky, A.S.: Raphael [Opera] / Songs and Romances
type: MusicAlbum
date published: 2004-01-01

Opera Arias (Mezzo-Soprano): Domashenko, Marina - Cilea, F. / Saint-Saens, C. / Mussorgsky, M.P. / Rimsky-Korsakov, N.A. / Prokofiev, S.
type: MusicAlbum
date published: 2001-01-01

Singing of Love
type: MusicAlbum
date published: 2018-11-09
track: Iolanta, Op. 69, TH 11: Who Can Compare with My Mathilde
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  duration: PT2M35S
  duration ms: 155445
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Dmitri Hvorostovsky
  by artist: State Academy Symphony Orchestra of Russia
  by artist: Constantine Orbelian
  in album: Singing of Love
    type: MusicAlbum
    date published: 2018-11-09
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856508
  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 0xf3229fc24f0b1f37a973428944d9f8aa10d4651bc434f4c828491c73b9ec3b5f. 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/USASX1856508.
    date published: 2026-07-08T08:56:20Z
  audio: Iolanta, Op. 69, TH 11: Who Can Compare with My Mathilde
    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
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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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track: Mazeppa, TH 7: Oh Maria, Maria!
  type: MusicRecording
  duration: PT5M24S
  duration ms: 324313
  explicit: false
  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Dmitri Hvorostovsky
  by artist: State Academy Symphony Orchestra of Russia
  by artist: Constantine Orbelian
  in album: Singing of Love
    type: MusicAlbum
    date published: 2018-11-09
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  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1762acfeaf661164012914c9f3ac71ab993c38e67fb143e1f9d68e43d7548ca. 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/USASX1856509.
    date published: 2026-07-08T03:22:41Z
  audio: Mazeppa, TH 7: Oh Maria, Maria!
    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
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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: Mode Name
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track: Tenderness (Arr. E. Stetsyuk)
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175196
  explicit: false
  by artist: Alexandra Pakhmutova
  by artist: Dmitri Hvorostovsky
  by artist: Style of Five
  by artist: Moscow Chamber Orchestra
  by artist: Constantine Orbelian
  in album: Singing of Love
    type: MusicAlbum
    date published: 2018-11-09
  genre: russian-modern-classical
  isrc code: USASX1856510
  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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    value: https://explorer.copyrightchains.com/tx/0xd835821df484a078f5a6a482e6881fe8b20d261fe2331897f56e6603959dc917
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  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tenderness (Arr. E. Stetsyuk)
track: Wait for Me (Arr. E. Stetsyuk)
track: I Recall a Wonderful Moment
track: Parlami d'amore, Mariù (Arr. L. Logi)
track: I'm Grateful to You
track: Don Carlo: O Carlo, ascolta
track: Don Giovanni, K. 527: Deh vieni alla finestra
track: Pagliacci: Prologue - Si può? Si può?
track: Faust, CG 4: Avant de quitter ces lieux
track: Tannhäuser, WWV 70: O du mein holder Abendstern
track: O sole mio (Arr. G. Chiaramello)

OTSHash
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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/USASX1856510

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 0xd835821df484a078f5a6a482e6881fe8b20d261fe2331897f56e6603959dc917. 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/USASX1856510.
date published: 2026-07-08T03:22:41Z

Tenderness (Arr. E. Stetsyuk)
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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  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.308
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)
  type: PropertyValue
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additional property: Key Name
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additional property: Mode Name
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Wait for Me (Arr. E. Stetsyuk)
type: MusicRecording
duration: PT4M30S
duration ms: 270808
explicit: false
by artist: Kirill Molchanov
by artist: Dmitri Hvorostovsky
by artist: Style of Five
by artist: Moscow Chamber Orchestra
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
isrc code: USASX1856511
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
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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 0xeaa30e84db228ea1dc1647996d2519c43998f18b11c18075ec8ea92bd0af606e. 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/USASX1856511.
  date published: 2026-07-08T03:22:41Z
audio: Wait for Me (Arr. E. Stetsyuk)
  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
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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
    type: PropertyValue
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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
    type: PropertyValue
    value: Bb
  additional property: Mode Name
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I Recall a Wonderful Moment
type: MusicRecording
duration: PT3M21S
duration ms: 201892
explicit: false
by artist: Mikhail Glinka
by artist: Dmitri Hvorostovsky
by artist: Ivari Ilja
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
isrc code: USASX1856512
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/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856512
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 0xebe94a7318918db39979737d40304e3fb26fa52dd409007460dd0db43e5376de. 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/USASX1856512.
  date published: 2026-07-08T03:20:19Z
audio: I Recall a Wonderful Moment
  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
    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)
    type: PropertyValue
    value: 0.168
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.66
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

I'm Grateful to You
type: MusicRecording
duration: PT3M36S
duration ms: 216680
explicit: false
by artist: Arno Babadjanian
by artist: Dmitri Hvorostovsky
by artist: Style of Five
by artist: Moscow Chamber Orchestra
by artist: Constantine Orbelian
in album: Singing of Love
  type: MusicAlbum
  date published: 2018-11-09
isrc code: USASX1856518
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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USASX1856518
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
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audio: I'm Grateful to You
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Laugh with Classical Music
type: MusicAlbum
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type: MusicAlbum
date published: 2013-11-05