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type: MusicGroup
genre: classical
popularity: 39
followers: 401
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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album: Leoncavallo: Opera Masterpieces
  type: MusicAlbum
  date published: 2021-11-26
album: Ruggero Leoncavallo: Zaza
  type: MusicAlbum
  date published: 2014-09-01
album: Leoncavallo: Mameli
  type: MusicAlbum
  date published: 2014-04-01
album: Leoncavallo: Chatterton
  type: MusicAlbum
  date published: 2013-08-01
album: Ouvertures
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    by artist: Moldavian National Symphony Orchestra
    by artist: Silvano Frontalini
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      date published: 2015-04-27
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    genre: classical-era
    genre: galante-era
    genre: italian-romanticism
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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
    audio: Les danaides: Overture
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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: Axur re d'Ormus: Overture
  track: La grotta di Trofonio: Overture
album: Ballo Excelsior (Concerto di Capodanno)
album: La Belle Époque Italienne: Ballo Excelsior
album: Arias for Tenor (Instrumental Version)
album: Vienna Christmas
album: Roncole Festival 2015, Vol. 3 (Live Recording)
album: Roncole Festival 2015, Vol. 2 (Live Recording)
album: Roncole Festival 2015, Vol. 1 (Live Recording)
album: La messa di Ravenna
album: Arias for Soprano: Only Music (Instrumental Version)
album: Arias for Mezzosoprano. Only Music (Instrumental Version)
album: Arias for Baritone Only Music
album: Arias for Dramatic Soprano. Only Music (Instrumental Version)
album: Natalia Margarit
album: Zingarelli: Sinfonie
album: Durante: Requiem in G Minor & Lamentatione Jeremiae prophetae
album: Bossi: Organ Concerto in B-Flat Minor, Fantasia sinfonica, Sinfonica-overture in E Major & Siciliana e giga (Live)
album: Alfredo Catalani: Works for Orchestra
album: Giuseppe Mulè
album: Collana musica sinfonica e strumentale: Sinfonie e arie da opere
album: Collana musica sinfonica e strumentale: Il violino e la viola
album: Marcello: Concerti grossi, Op. 1
album: Classical Music Composed During the Great War
album: Jommelli: Requiem
album: Best of Waltz Music
album: Sammartini: Concerti grossi, Op. 2 & Keyboard Concerti, Op. 9
album: Tchaikovsky: Nutcracker Suite
album: Smetana: Mà Vlast
album: Mahler: Symphony No. 1 "Titan"
album: Rossini: Sacred Music
album: Bach: Concert for piano and Orchestra No. 1, BWV 1052 & Suite No. 2 in B Minor, BWV 1067
album: Smareglia: Overtures e intermezzi
album: Inni Nazionali
album: Concerto per Papa Wojtyla
album: Rolando Panerai
album: Leoncavallo / Franchetti
album: Catalani: La falce
track: Tosca: "Vissi d'arte" - Instrumental Version
track: Flute and Harp Concerto in C Major, K. 299: II. Andantino
track: Flute Concerto No. 1 in G Major, K. 313: II. Adagio - Allegro ma non troppo
track: Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
track: Piano Concerto No. 19 in F Major, K. 459: I. Allegro

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by artist: Moldavian National Symphony Orchestra
by artist: Silvano Frontalini
in album: Ouvertures
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genre: classical
genre: classical-era
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genre: italian-romanticism
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11893a808e326a1ca06d02e4660e86ed7881f573bb9a6c7fa7e965d907752a5e. 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/ITD541500316.
  date published: 2026-07-08T03:20:19Z
audio: Axur re d'Ormus: Overture
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La grotta di Trofonio: Overture
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by artist: Moldavian National Symphony Orchestra
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:53:27Z
audio: La grotta di Trofonio: Overture
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Ballo Excelsior (Concerto di Capodanno)
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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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  additional property: OTSVerifyInstructions
    type: PropertyValue
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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 Belle Époque Italienne: Ballo Excelsior
type: MusicAlbum
date published: 2020-12-04

Arias for Tenor (Instrumental Version)
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date published: 2018-06-01
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  by artist: Orchestra Sinfonica Moldava
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    date published: 2018-06-01
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T03:53:27Z
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Vienna Christmas
type: MusicAlbum
date published: 2016-11-10

Roncole Festival 2015, Vol. 3 (Live Recording)
type: MusicAlbum
date published: 2015-11-06

Roncole Festival 2015, Vol. 2 (Live Recording)
type: MusicAlbum
date published: 2015-11-06

Roncole Festival 2015, Vol. 1 (Live Recording)
type: MusicAlbum
date published: 2015-11-06

La messa di Ravenna
type: MusicAlbum
date published: 2015-05-06

Arias for Soprano: Only Music (Instrumental Version)
type: MusicAlbum
date published: 2015-05-04
track: Un ballo in Maschera: Saper vorreste - Instrumental Version
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  by artist: Silvano Frontalini
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T13:32:09Z
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track: La traviata: Addio del passato - Instrumental Version
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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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Arias for Mezzosoprano. Only Music (Instrumental Version)
type: MusicAlbum
date published: 2015-05-04
track: Il barbiere di Siviglia: "Una voce poco fa" - Instrumental Version
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-08T08:56:20Z
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
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Arias for Baritone Only Music
type: MusicAlbum
date published: 2015-05-04
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  subject of: OpenTimestamps Proof of Existence
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Don Giovanni, K. 527, Act I: "Madamina il catalogo è questo" - Instrumental Version
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Arias for Dramatic Soprano. Only Music (Instrumental Version)
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Natalia Margarit
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Zingarelli: Sinfonie
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Durante: Requiem in G Minor & Lamentatione Jeremiae prophetae
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Bossi: Organ Concerto in B-Flat Minor, Fantasia sinfonica, Sinfonica-overture in E Major & Siciliana e giga (Live)
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Alfredo Catalani: Works for Orchestra
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Giuseppe Mulè
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Collana musica sinfonica e strumentale: Il violino e la viola
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Marcello: Concerti grossi, Op. 1
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Classical Music Composed During the Great War
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Jommelli: Requiem
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  duration ms: 206533
  explicit: false
  by artist: Niccolò Jommelli
  by artist: Elena Cioric
  by artist: Beata Ganzel
  by artist: Antonio De Lucía
  by artist: Viorel Kojocaru
  by artist: Coro dell'Accademia Nazionale Moldava
  by artist: Orchestra Sinfonica Moldava
  by artist: Silvano Frontalini
  in album: Jommelli: Requiem
    type: MusicAlbum
    date published: 2014-09-01
  isrc code: ITDQ79922152
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T12:09:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0e995f199450584aa7ae21c02b3ec239c2775fbd9752c996ae1915fa67f903ac
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79922152
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e995f199450584aa7ae21c02b3ec239c2775fbd9752c996ae1915fa67f903ac. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79922152.
    date published: 2026-07-08T03:53:27Z
  audio: Requiem in E-Flat Major: Kyrie (Soloists, Chorus)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.942
    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: 0.199
    additional property: Energy
      type: PropertyValue
      value: 0.215
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.935
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.914
    additional property: Liveness
      type: PropertyValue
      value: 0.127
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.161
    additional property: Loudness (dB)
      type: PropertyValue
      value: -19.748
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Requiem in E-Flat Major: Dona eis requiem (Soloists, Chorus)
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144800
  explicit: false
  by artist: Niccolò Jommelli
  by artist: Elena Cioric
  by artist: Viorel Kojocaru
  by artist: Coro dell'Accademia Nazionale Moldava
  by artist: Beata Ganzel
  by artist: Orchestra Sinfonica Moldava
  by artist: Antonio De Lucía
  by artist: Silvano Frontalini
  in album: Jommelli: Requiem
    type: MusicAlbum
    date published: 2014-09-01
  isrc code: ITDQ79932215
  additional property: CopyrightID
  additional property: CopyrightStatus
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Requiem in E-Flat Major: Dona eis requiem (Soloists, Chorus)
track: Requiem in E-Flat Major: Libera me Domine (Chorus, Soloists)
track: Requiem in E-Flat Major: Dies illa (Contralto)

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-07T13:25:58+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0x61c1c32779b8d75cf44619b366e1ad01d43194478396adb2cfe810d40674b492

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 957124

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/957124

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79932215

OTSTimestamp
type: PropertyValue
value: 2026-07-08T03:53:27Z

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 0x61c1c32779b8d75cf44619b366e1ad01d43194478396adb2cfe810d40674b492. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79932215.
date published: 2026-07-08T03:53:27Z

Requiem in E-Flat Major: Dona eis requiem (Soloists, Chorus)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 129.236
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: 0.253
additional property: Energy
  type: PropertyValue
  value: 0.27
additional property: Speechiness
  type: PropertyValue
  value: 0.036
additional property: Acousticness
  type: PropertyValue
  value: 0.987
additional property: Instrumentalness
  type: PropertyValue
  value: 0.333
additional property: Liveness
  type: PropertyValue
  value: 0.143
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.29
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.955
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

Requiem in E-Flat Major: Libera me Domine (Chorus, Soloists)
type: MusicRecording
duration: PT2M10S
duration ms: 130493
explicit: false
by artist: Niccolò Jommelli
by artist: Coro dell'Accademia Nazionale Moldava
by artist: Beata Ganzel
by artist: Orchestra Sinfonica Moldava
by artist: Antonio De Lucía
by artist: Elena Cioric
by artist: Viorel Kojocaru
by artist: Silvano Frontalini
in album: Jommelli: Requiem
  type: MusicAlbum
  date published: 2014-09-01
isrc code: ITDQ79952215
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:07:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd9d117f1cc8c474e46d66d0a510a8da2e2af48fe592701c3b948f90b217b8aac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957145
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957145
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79952215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T08:56:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d117f1cc8c474e46d66d0a510a8da2e2af48fe592701c3b948f90b217b8aac. 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/ITDQ79952215.
  date published: 2026-07-08T08:56:20Z
audio: Requiem in E-Flat Major: Libera me Domine (Chorus, Soloists)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 99.608
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.188
  additional property: Energy
    type: PropertyValue
    value: 0.153
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.98
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.584
  additional property: Liveness
    type: PropertyValue
    value: 0.116
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.067
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.907
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Requiem in E-Flat Major: Dies illa (Contralto)
type: MusicRecording
duration: PT1M32S
duration ms: 92666
explicit: false
by artist: Niccolò Jommelli
by artist: Orchestra Sinfonica Moldava
by artist: Antonio De Lucía
by artist: Elena Cioric
by artist: Viorel Kojocaru
by artist: Coro dell'Accademia Nazionale Moldava
by artist: Beata Ganzel
by artist: Silvano Frontalini
in album: Jommelli: Requiem
  type: MusicAlbum
  date published: 2014-09-01
isrc code: ITDQ79902215
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T16:03:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffe0b3466913aa2b56b89fd4429e3134411347ca0a1d314c0a6ba79435f40f7b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957124
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79902215
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:53:27Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe0b3466913aa2b56b89fd4429e3134411347ca0a1d314c0a6ba79435f40f7b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITDQ79902215.
  date published: 2026-07-08T03:53:27Z
audio: Requiem in E-Flat Major: Dies illa (Contralto)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.104
  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: 0.221
  additional property: Energy
    type: PropertyValue
    value: 0.148
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.111
  additional property: Liveness
    type: PropertyValue
    value: 0.143
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.06
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.118
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Best of Waltz Music
type: MusicAlbum
date published: 2014-08-20
track: Frühlingsstimmen, Op. 410
  type: MusicRecording
  duration: PT7M37S
  duration ms: 457668
  explicit: false
  by artist: Johann Strauss II
  by artist: Vilnius Orchestra
  by artist: Silvano Frontalini
  in album: Best of Waltz Music
    type: MusicAlbum
    date published: 2014-08-20
  isrc code: ITD541400311
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T19:42:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd124dd0c360d20293bdb1af2313058df9d385ea65b0725ebe87978f36ca55044
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953536
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953536
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541400311
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T17:25:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd124dd0c360d20293bdb1af2313058df9d385ea65b0725ebe87978f36ca55044. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541400311.
    date published: 2026-06-13T17:25:41Z
  audio: Frühlingsstimmen, Op. 410
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 173.002
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.228
    additional property: Energy
      type: PropertyValue
      value: 0.099
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.87
    additional property: Liveness
      type: PropertyValue
      value: 0.189
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.252
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.628
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: G'schichten aus dem Wienerwald, Op. 325
  type: MusicRecording
  duration: PT12M50S
  duration ms: 770669
  explicit: false
  by artist: Johann Strauss II
  by artist: Vilnius Orchestra
  by artist: Silvano Frontalini
  in album: Best of Waltz Music
    type: MusicAlbum
    date published: 2014-08-20
  isrc code: ITD541400312
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T23:21:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x683929b2e8cf49ae612128ac0fd3104ee0e93f80d344f8b4f4d5a0f272ac1566
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957124
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957124
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541400312
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:53:27Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683929b2e8cf49ae612128ac0fd3104ee0e93f80d344f8b4f4d5a0f272ac1566. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541400312.
    date published: 2026-07-08T03:53:27Z
  audio: G'schichten aus dem Wienerwald, Op. 325
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 172.422
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.289
    additional property: Energy
      type: PropertyValue
      value: 0.081
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.845
    additional property: Liveness
      type: PropertyValue
      value: 0.078
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.178
    additional property: Loudness (dB)
      type: PropertyValue
      value: -23.696
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: An der schönen blauen Donau, Op. 314
  type: MusicRecording
  duration: PT11M24S
  duration ms: 684189
  explicit: false
  by artist: Johann Strauss II
  by artist: Donetsk Orchestra
  by artist: Silvano Frontalini
  in album: Best of Waltz Music
    type: MusicAlbum
    date published: 2014-08-20
  isrc code: ITD541400283
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-10T05:34:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x95bac3bd0aec09fbbcaa4693fefaa5e564221fa3752c94b5377147d944ecb8f9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: An der schönen blauen Donau, Op. 314
track: Schatz Walzer, Op. 418

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953520

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITD541400283

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

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
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An der schönen blauen Donau, Op. 314
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Schatz Walzer, Op. 418
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Sammartini: Concerti grossi, Op. 2 & Keyboard Concerti, Op. 9
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Tchaikovsky: Nutcracker Suite
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track: Nutcracker Suite, Op. 71a: No. 2e, Chinese Dance. Allegro moderato
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Nutcracker Suite, Op. 71a: No. 2e, Chinese Dance. Allegro moderato
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Smetana: Mà Vlast
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Mahler: Symphony No. 1 "Titan"
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Rossini: Sacred Music
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Smareglia: Overtures e intermezzi
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Inni Nazionali
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Flute Concerto No. 1 in G Major, K. 313: II. Adagio - Allegro ma non troppo
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Flute Concerto No. 1 in G Major, K. 313: III. Rondò - Minuetto
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Piano Concerto No. 19 in F Major, K. 459: I. Allegro
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