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type: MusicGroup
popularity: 5
followers: 39
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additional property: CopyrightChainExplorerURL
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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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  date published: 2026-06-17T08:11:48Z
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album: Music for Violin and Viola
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  date published: 2016-11-01
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    by artist: Davide Alogna
    by artist: José Adolfo Alejo
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      date published: 2016-11-01
    genre: classical
    genre: classical-era
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1373f56c2639d68bc1bb2fed0e5095bcef6ec7ab9e873ebae04cf10e78786a03. 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/NLY331604446.
      date published: 2026-07-08T03:53:27Z
    audio: Duo for Violin and Viola in G Major, K. 423: I. Allegro
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    by artist: José Adolfo Alejo
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      date published: 2016-11-01
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    additional property: OTSTimestamp
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
    audio: Duo for Violin and Viola in G Major, K. 423: II. Adagio
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  track: Duo for Violin and Viola in G Major, K. 423: III. Rondeau. Allegro
  track: Passacaglia for Violin and Viola
  track: Symphonie concertante in B-Flat Major, B. 112: I. Allegro
  track: Sinfonia concertante in E-Flat Major, K. 364: II. Andante
  track: Double Concerto in E Minor, Op. 88: II. Allegro moderato
  track: Symphonie concertante in B-Flat Major, B. 112: II. Rondo. Moderato
  track: Sinfonia concertante in E-Flat Major, K. 364: I. Allegro maestoso
  track: Double Concerto in E Minor, Op. 88: I. Andante con moto
  track: Double Concerto in E Minor, Op. 88: III. Allegro molto
album: Sinfonia Concertante
album: Alexis Aranda: Concertos
album: Piazzolla: Las 4 Estaciones
album: Camerata de Coahuila
album: Aconcagua
album: Camerata De Coahuila: Ponce, Copland, Bartók-De Elias, Moncayo

Symphonie concertante in B-Flat Major, B. 112: I. Allegro
type: MusicRecording
duration: PT12M23S
duration ms: 743293
explicit: false
by artist: Ignaz Pleyel
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 3
genre: classical-era
genre: french-romanticism
isrc code: NLY331604438
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7563b4e82c28b6cbe403832e75612a447897e7317f4f093d8a231fc19a1ea1. 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/NLY331604438.
  date published: 2026-07-08T08:56:20Z
audio: Symphonie concertante in B-Flat Major, B. 112: I. Allegro
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  additional property: Mode (Major/Minor)
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Sinfonia concertante in E-Flat Major, K. 364: II. Andante
type: MusicRecording
duration: PT9M18S
duration ms: 558648
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 1
genre: classical
genre: classical-era
isrc code: NLY331604441
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:39:04Z
audio: Sinfonia concertante in E-Flat Major, K. 364: II. Andante
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Double Concerto in E Minor, Op. 88: II. Allegro moderato
type: MusicRecording
duration: PT5M9S
duration ms: 309823
explicit: false
by artist: Max Bruch
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 2
isrc code: NLY331604444
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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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
additional property: ProofProfileEvidenceStatus
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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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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d496473b79b0ef108070be3b60586c775f0fa21a8b23d0138c773b45b41eed. 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/NLY331604444.
  date published: 2026-07-08T08:56:20Z
audio: Double Concerto in E Minor, Op. 88: II. Allegro moderato
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Symphonie concertante in B-Flat Major, B. 112: II. Rondo. Moderato
type: MusicRecording
duration: PT8M30S
duration ms: 510955
explicit: false
by artist: Ignaz Pleyel
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 2
genre: classical-era
genre: french-romanticism
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9c897c6a236dbe7aff198aa90299599f59962dcd478fe546e5e6d8272c06bc. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLY331604439.
  date published: 2026-07-31T02:19:15Z
audio: Symphonie concertante in B-Flat Major, B. 112: II. Rondo. Moderato
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Sinfonia concertante in E-Flat Major, K. 364: I. Allegro maestoso
type: MusicRecording
duration: PT13M31S
duration ms: 811235
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by artist: Wolfgang Amadeus Mozart
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 1
genre: classical
genre: classical-era
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T15:20:15Z
audio: Sinfonia concertante in E-Flat Major, K. 364: I. Allegro maestoso
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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Double Concerto in E Minor, Op. 88: I. Andante con moto
type: MusicRecording
duration: PT7M37S
duration ms: 457967
explicit: false
by artist: Max Bruch
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
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  date published: 2016-11-01
popularity: 6
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T01:34:28Z
audio: Double Concerto in E Minor, Op. 88: I. Andante con moto
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additional property: OTSVerifyInstructions
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Double Concerto in E Minor, Op. 88: III. Allegro molto
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duration: PT5M36S
duration ms: 336991
explicit: false
by artist: Max Bruch
by artist: Camerata de Coahuila
by artist: Ramón Shade
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
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  date published: 2016-11-01
popularity: 2
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T19:53:13Z
audio: Double Concerto in E Minor, Op. 88: III. Allegro molto
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additional property: OTSVerifyInstructions
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Duo for Violin and Viola in G Major, K. 423: III. Rondeau. Allegro
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duration: PT5M14S
duration ms: 314769
explicit: false
by artist: Wolfgang Amadeus Mozart
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
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genre: classical
genre: classical-era
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eee43cd572e6b2d0cb39026c0ae3aae74235578c037575343e843225a70699. 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/NLY331604448.
  date published: 2026-07-08T03:53:27Z
audio: Duo for Violin and Viola in G Major, K. 423: III. Rondeau. Allegro
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Passacaglia for Violin and Viola
type: MusicRecording
duration: PT6M23S
duration ms: 383268
explicit: false
by artist: Johan Halvorsen
by artist: Davide Alogna
by artist: José Adolfo Alejo
in album: Music for Violin and Viola
  type: MusicAlbum
  date published: 2016-11-01
popularity: 40
genre: norwegian-classical
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: Passacaglia for Violin and Viola
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Sinfonia Concertante
type: MusicAlbum
date published: 2024-09-11

Alexis Aranda: Concertos
type: MusicAlbum
date published: 2019-11-01

Piazzolla: Las 4 Estaciones
type: MusicAlbum
date published: 2017-05-05

Camerata de Coahuila
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date published: 2003-11-21

Aconcagua
type: MusicAlbum
date published: 2009-12-13

Camerata De Coahuila: Ponce, Copland, Bartók-De Elias, Moncayo
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  additional property: OTSVerifyInstructions
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    date published: 2026-07-08T08:56:20Z
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track: Danzas Rumanas: IV. Buciumeana
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  duration ms: 105226
  explicit: false
  by artist: Béla Bartók
  by artist: Josef Gamilagdischvili
  by artist: Natalia Riazanova
  in album: Camerata De Coahuila: Ponce, Copland, Bartók-De Elias, Moncayo
    type: MusicAlbum
    date published: 2003-11-21
  isrc code: MX2831201067
  additional property: CopyrightID
  additional property: CopyrightStatus
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    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-07T19:38:33+00:00
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 957145
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957145
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MX2831201067
  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 0x1ec6aa3a47799113afb6d3f37fcfa7c821e4c79bb948620ccd321a300a93ace4. 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/MX2831201067.
    date published: 2026-07-08T08:56:20Z
  audio: Danzas Rumanas: IV. Buciumeana
    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
      type: PropertyValue
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    additional property: Speechiness
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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: 0.039
    additional property: Loudness (dB)
      type: PropertyValue
      value: -26.07
    additional property: Key Name
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      value: D
    additional property: Mode Name
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