La Cumparsita rock 72
type: MusicGroup
genre: argentine rock
genre: reggae rock
description: La Cumparsita Rock 72 is an Argentine rock band formed in Villa Elvira, La Plata, Argentina in 2001. Discography Studio albums Todo en la estacion (2004) Mi Solucion Circunvalacion Timba n
popularity: 30
followers: 13660
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album: Todo en la Estación
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  date published: 2004
  track: Mi Solución
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    genre: argentine rock
    genre: reggae rock
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      date published: 2026-07-16T16:39:24Z
    audio: Mi Solución
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  track: Femenina de Placer
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    genre: argentine rock
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    audio: Femenina de Placer
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  track: Nena
  track: Sólo una Noche
  track: La 72
album: Circunvalación
album: El Misterio de Lo Sencillo
album: La Máquina
album: Los Locos
album: Un Bosque
album: Máquina de Sentimientos Contra el Viento, Vol. 1
album: Máquina de Sentimientos Contra el Viento, Vol. 2
album: Reina
album: En Vivo en Microestadio Atenas
album: Será Mi Suerte
album: Luna Paranoica
album: Las Esquirlas
album: Pandemium (Vivo Diciembre 2020)
album: Enroscado (Tal Vez)
album: Enroscado (Tal vez)
album: Latidos
album: La vela
album: La Vela
album: Gualicho
album: VOLAR
album: Volar
album: ESA FLOR, La de tu ventana

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Nena
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genre: argentine rock
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-15T00:21:05Z
audio: Nena
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Sólo una Noche
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-03T08:56:35Z
audio: Sólo una Noche
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La 72
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-18T22:58:55Z
audio: La 72
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Circunvalación
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El Misterio de Lo Sencillo
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track: A Lo Lejos
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    date published: 2026-07-18T12:14:37Z
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      value: 0.403
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.094
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.333
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.515
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Puede Que Haya Más
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265226
  explicit: false
  by artist: La Cumparsita rock 72
  in album: El Misterio de Lo Sencillo
    type: MusicAlbum
    date published: 2010
  genre: argentine rock
  genre: reggae rock
  isrc code: AR8TN1600184
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T12:07:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb217fec476f6977207f91d1c12c687287b18377032967dd1a61678d75bcc3995
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8TN1600184
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T12:24:55Z
  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 0xb217fec476f6977207f91d1c12c687287b18377032967dd1a61678d75bcc3995. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AR8TN1600184.
    date published: 2026-07-19T12:24:55Z
  audio: Puede Que Haya Más
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
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    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.475
    additional property: Energy
      type: PropertyValue
      value: 0.501
    additional property: Speechiness
      type: PropertyValue
      value: 0.027
    additional property: Acousticness
      type: PropertyValue
      value: 0.052
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.331
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.116
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
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track: Tierra del Arte
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223760
  explicit: false
  by artist: La Cumparsita rock 72
  in album: El Misterio de Lo Sencillo
    type: MusicAlbum
    date published: 2010
  genre: argentine rock
  genre: reggae rock
  isrc code: AR8TN1600186
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T19:29:10+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x06048850578e7a78b0e261e9cbd599f4e90f4a8a8796fddfd3723b407390f71b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958931
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Tierra del Arte
track: Otoño Amanecer

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958931

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8TN1600186

OTSTimestamp
type: PropertyValue
value: 2026-07-20T21:15:01Z

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 0x06048850578e7a78b0e261e9cbd599f4e90f4a8a8796fddfd3723b407390f71b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AR8TN1600186.
date published: 2026-07-20T21:15:01Z

Tierra del Arte
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.169
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.555
additional property: Energy
  type: PropertyValue
  value: 0.756
additional property: Speechiness
  type: PropertyValue
  value: 0.056
additional property: Acousticness
  type: PropertyValue
  value: 0.006
additional property: Instrumentalness
  type: PropertyValue
  value: 0.003
additional property: Liveness
  type: PropertyValue
  value: 0.238
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.378
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.91
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
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Otoño Amanecer
type: MusicRecording
duration: PT4M21S
duration ms: 261773
explicit: false
by artist: La Cumparsita rock 72
in album: El Misterio de Lo Sencillo
  type: MusicAlbum
  date published: 2010
genre: argentine rock
genre: reggae rock
isrc code: AR8TN1600190
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T19:21:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x744991f773b0d2849d08862e5bb61872700290c0a1330027b2d61aa18f6da4e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958316
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958316
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AR8TN1600190
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T19:42:29Z
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 0x744991f773b0d2849d08862e5bb61872700290c0a1330027b2d61aa18f6da4e5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AR8TN1600190.
  date published: 2026-07-16T19:42:29Z
audio: Otoño Amanecer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.935
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.47
  additional property: Energy
    type: PropertyValue
    value: 0.695
  additional property: Speechiness
    type: PropertyValue
    value: 0.029
  additional property: Acousticness
    type: PropertyValue
    value: 0.045
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.19
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.403
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.01
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

La Máquina
type: MusicAlbum
date published: 2016-08-17

Los Locos
type: MusicAlbum
date published: 2016-08-17

Un Bosque
type: MusicAlbum
date published: 2016-08-17

Máquina de Sentimientos Contra el Viento, Vol. 1
type: MusicAlbum
date published: 2016-09-16
track: Años Violentos
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193991
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 1
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T05:38:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5b4a7a62a6c574de8bf37e72460609a1f7387e1172ecaaed1685226f2a33cfb0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  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 0x5b4a7a62a6c574de8bf37e72460609a1f7387e1172ecaaed1685226f2a33cfb0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AREKW1600001.
    date published: 2026-07-04T11:19:20Z
  audio: Años Violentos
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 86.978
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.382
    additional property: Energy
      type: PropertyValue
      value: 0.681
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.086
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.394
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.271
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Pampero
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179573
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 1
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600007
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T23:37:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa1f695f6869b75799bbc483ae41ce834f86b52cc4e3cea70a79d6c8ba6926e46
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958079
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958079
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600007
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T00:21:05Z
  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 0xa1f695f6869b75799bbc483ae41ce834f86b52cc4e3cea70a79d6c8ba6926e46. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/AREKW1600007.
    date published: 2026-07-15T00:21:05Z
  audio: Pampero
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.038
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.609
    additional property: Energy
      type: PropertyValue
      value: 0.572
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.495
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.092
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.42
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.307
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Malos Tratos
  type: MusicRecording
  duration: PT3M49S
  duration ms: 229204
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 1
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600009
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T20:25:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb1c2a95c8949a18f8df35dedb4c2c26d6a64ec0a20670a6538302a6029c5a178
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958607
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Malos Tratos

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958607

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600009

OTSTimestamp
type: PropertyValue
value: 2026-07-18T21:01:11Z

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 0xb1c2a95c8949a18f8df35dedb4c2c26d6a64ec0a20670a6538302a6029c5a178. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/AREKW1600009.
date published: 2026-07-18T21:01:11Z

Malos Tratos
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 97.997
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.572
additional property: Energy
  type: PropertyValue
  value: 0.718
additional property: Speechiness
  type: PropertyValue
  value: 0.03
additional property: Acousticness
  type: PropertyValue
  value: 0.251
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.137
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.579
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.98
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Máquina de Sentimientos Contra el Viento, Vol. 2
type: MusicAlbum
date published: 2016-09-16
track: Un Bosque
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218602
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 2
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600011
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T03:05:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3b4ab2f0391c57062eaf43a9d1ff2a40e664c191533258117d69e7b830c99711
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600011
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T03:34:53Z
  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 0x3b4ab2f0391c57062eaf43a9d1ff2a40e664c191533258117d69e7b830c99711. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/AREKW1600011.
    date published: 2026-07-18T03:34:53Z
  audio: Un Bosque
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 122.032
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.546
    additional property: Energy
      type: PropertyValue
      value: 0.582
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.28
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.08
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.463
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.672
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Pasaron las Horas
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256519
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 2
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T15:26:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x519c5c30553cd8d6fdb0d1c592142ecae9f1e20b9b4c9f80a32c2ba121158d5a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958169
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958169
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T18:27:36Z
  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 0x519c5c30553cd8d6fdb0d1c592142ecae9f1e20b9b4c9f80a32c2ba121158d5a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:27:36Z), 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/AREKW1600012.
    date published: 2026-07-15T18:27:36Z
  audio: Pasaron las Horas
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.021
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.523
    additional property: Energy
      type: PropertyValue
      value: 0.798
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.159
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.625
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.975
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Chico de Papá
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173641
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Máquina de Sentimientos Contra el Viento, Vol. 2
    type: MusicAlbum
    date published: 2016-09-16
  genre: argentine rock
  genre: reggae rock
  isrc code: AREKW1600013
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:15:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf74cba77f791bb25fb115763c0195363463f45846488383ef4fa1fe8430803b7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956639
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Chico de Papá
track: Amaneceres Tristes
track: 72 Espejos
track: 220 Watts
track: Horizonte Sin Frenos

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956639

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600013

OTSTimestamp
type: PropertyValue
value: 2026-07-04T11:19:20Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf74cba77f791bb25fb115763c0195363463f45846488383ef4fa1fe8430803b7. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AREKW1600013.
date published: 2026-07-04T11:19:20Z

Chico de Papá
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 183.97
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.515
additional property: Energy
  type: PropertyValue
  value: 0.637
additional property: Speechiness
  type: PropertyValue
  value: 0.041
additional property: Acousticness
  type: PropertyValue
  value: 0.276
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.105
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.581
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.936
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Major

Amaneceres Tristes
type: MusicRecording
duration: PT3M50S
duration ms: 230880
explicit: false
by artist: La Cumparsita rock 72
in album: Máquina de Sentimientos Contra el Viento, Vol. 2
  type: MusicAlbum
  date published: 2016-09-16
genre: argentine rock
genre: reggae rock
isrc code: AREKW1600014
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T06:06:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8640ca1efee7cd50ada7f7e8b84b006399f76ccb2521e6a8ae77f253114be8c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958508
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958508
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600014
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T06:27:01Z
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 0x8640ca1efee7cd50ada7f7e8b84b006399f76ccb2521e6a8ae77f253114be8c4. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/AREKW1600014.
  date published: 2026-07-18T06:27:01Z
audio: Amaneceres Tristes
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.972
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.592
  additional property: Energy
    type: PropertyValue
    value: 0.663
  additional property: Speechiness
    type: PropertyValue
    value: 0.025
  additional property: Acousticness
    type: PropertyValue
    value: 0.088
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.404
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.803
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

72 Espejos
type: MusicRecording
duration: PT3M40S
duration ms: 220254
explicit: false
by artist: La Cumparsita rock 72
in album: Máquina de Sentimientos Contra el Viento, Vol. 2
  type: MusicAlbum
  date published: 2016-09-16
genre: argentine rock
genre: reggae rock
isrc code: AREKW1600016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T01:03:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa00c2942c8e5ee324bded8e4abfe12e9ed64ca3c5a69888b06600e72500d54c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958224
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958224
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T02:28:43Z
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 0xa00c2942c8e5ee324bded8e4abfe12e9ed64ca3c5a69888b06600e72500d54c2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AREKW1600016.
  date published: 2026-07-16T02:28:43Z
audio: 72 Espejos
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 185.641
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.392
  additional property: Energy
    type: PropertyValue
    value: 0.71
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.166
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.606
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.451
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.873
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

220 Watts
type: MusicRecording
duration: PT4M23S
duration ms: 263716
explicit: false
by artist: La Cumparsita rock 72
in album: Máquina de Sentimientos Contra el Viento, Vol. 2
  type: MusicAlbum
  date published: 2016-09-16
genre: argentine rock
genre: reggae rock
isrc code: AREKW1600017
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T23:32:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67fda0dc71c1feccd52082781e4e9ae7d655a103eee3fc84b82c8c9d3a368203
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956857
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600017
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T01:26:17Z
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 0x67fda0dc71c1feccd52082781e4e9ae7d655a103eee3fc84b82c8c9d3a368203. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AREKW1600017.
  date published: 2026-07-06T01:26:17Z
audio: 220 Watts
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.027
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.531
  additional property: Energy
    type: PropertyValue
    value: 0.711
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.248
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.171
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.275
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.776
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Horizonte Sin Frenos
type: MusicRecording
duration: PT4M15S
duration ms: 255064
explicit: false
by artist: La Cumparsita rock 72
in album: Máquina de Sentimientos Contra el Viento, Vol. 2
  type: MusicAlbum
  date published: 2016-09-16
genre: argentine rock
genre: reggae rock
isrc code: AREKW1600018
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T15:36:58+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc75696457f309abd1425eef1c8b429d0dfd21a11276658c6ff0f4b668420c0a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958166
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958166
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AREKW1600018
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T15:55:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc75696457f309abd1425eef1c8b429d0dfd21a11276658c6ff0f4b668420c0a. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AREKW1600018.
  date published: 2026-07-15T15:55:19Z
audio: Horizonte Sin Frenos
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.085
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.564
  additional property: Energy
    type: PropertyValue
    value: 0.737
  additional property: Speechiness
    type: PropertyValue
    value: 0.031
  additional property: Acousticness
    type: PropertyValue
    value: 0.136
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.108
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.382
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.949
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Reina
type: MusicAlbum
date published: 2018-05-19

En Vivo en Microestadio Atenas
type: MusicAlbum
date published: 2018-07-13

Será Mi Suerte
type: MusicAlbum
date published: 2019-10-04

Será Mi Suerte
type: MusicAlbum
date published: 2019-10-04

Luna Paranoica
type: MusicAlbum
date published: 2019-12-06

Luna Paranoica
type: MusicAlbum
date published: 2019-12-06

Las Esquirlas
type: MusicAlbum
date published: 2020-02-28

Las Esquirlas
type: MusicAlbum
date published: 2020-02-28
track: Las Esquirlas
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193575
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Las Esquirlas
    type: MusicAlbum
    date published: 2020-02-28
  genre: argentine rock
  genre: reggae rock
  isrc code: ARW8Z2000001
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T18:55:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61aaac571adf95ab455ea4ff36e9df3ad6438c30a8dfe4387d9a781d70e3e7f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARW8Z2000001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  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 0x61aaac571adf95ab455ea4ff36e9df3ad6438c30a8dfe4387d9a781d70e3e7f3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ARW8Z2000001.
    date published: 2026-07-03T21:18:05Z
  audio: Las Esquirlas
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.959
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    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
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Pandemium (Vivo Diciembre 2020)
type: MusicAlbum
date published: 2021-08-06
track: Reina (Vivo Diciembre 2020)
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222579
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Pandemium (Vivo Diciembre 2020)
    type: MusicAlbum
    date published: 2021-08-06
  genre: argentine rock
  genre: reggae rock
  isrc code: ARW8Z2100002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5d53d7b0e50eae86d2e1f08cba9c34df2d63d66ec87292068477a594e4f3e266
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  additional property: OTSBitcoinBlock
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    value: 958504
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958504
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARW8Z2100002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T05:41:32Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d53d7b0e50eae86d2e1f08cba9c34df2d63d66ec87292068477a594e4f3e266. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARW8Z2100002.
    date published: 2026-07-18T05:41:32Z
  audio: Reina (Vivo Diciembre 2020)
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.556
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.155
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -8.154
    additional property: Key Name
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track: Tiro Tiro (Vivo Diciembre 2020)
  type: MusicRecording
  duration: PT4M34S
  duration ms: 274591
  explicit: false
  by artist: La Cumparsita rock 72
  in album: Pandemium (Vivo Diciembre 2020)
    type: MusicAlbum
    date published: 2021-08-06
  genre: argentine rock
  genre: reggae rock
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  additional property: OTSBitcoinBlock
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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/ARW8Z2100006
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T21:28:36Z
  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 0xe0b437eee2d06188fb01b75731f224e4b68db5c75fa60a23a70bf569494c1f11. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ARW8Z2100006.
    date published: 2026-07-17T21:28:36Z
  audio: Tiro Tiro (Vivo Diciembre 2020)
    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
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.119
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.827
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.439
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.709
    additional property: Key Name
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    additional property: Mode Name
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Enroscado (Tal Vez)
type: MusicAlbum
date published: 2022-12-02

Enroscado (Tal vez)
type: MusicAlbum
date published: 2022-12-02

Latidos
type: MusicAlbum
date published: 2023-05-12

Latidos
type: MusicAlbum
date published: 2023-05-12

La vela
type: MusicAlbum
date published: 2023-06-02
track: La vela
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188562
  explicit: false
  by artist: La Cumparsita rock 72
  in album: La vela
    type: MusicAlbum
    date published: 2023-06-02
  genre: argentine rock
  genre: reggae rock
  isrc code: ARW8Z2300002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T09:06:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6dc4b5f467d5ee0922a58194ef1f12d22da587d162bad9aa01c185c3eb688d05
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958271
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958271
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARW8Z2300002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T09:16:54Z
  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 0x6dc4b5f467d5ee0922a58194ef1f12d22da587d162bad9aa01c185c3eb688d05. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ARW8Z2300002.
    date published: 2026-07-16T09:16:54Z
  audio: La vela
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.044
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.557
    additional property: Energy
      type: PropertyValue
      value: 0.757
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.007
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.312
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.485
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.573
    additional property: Key Name
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    additional property: Mode Name
      type: PropertyValue
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La Vela
type: MusicAlbum
date published: 2023-06-02

Gualicho
type: MusicAlbum
date published: 2023-09-14

Gualicho
type: MusicAlbum
date published: 2023-09-14

VOLAR
type: MusicAlbum
date published: 2024-11-21

Volar
type: MusicAlbum
date published: 2024-11-21

ESA FLOR, La de tu ventana
type: MusicAlbum
date published: 2025-04-10

ESA FLOR, La de tu ventana
type: MusicAlbum
date published: 2025-04-10
track: ESA FLOR - La de tu ventana
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149973
  explicit: false
  by artist: La Cumparsita rock 72
  in album: ESA FLOR, La de tu ventana
    type: MusicAlbum
    date published: 2025-04-10
  genre: argentine rock
  genre: reggae rock
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-16T06:13:45+00:00
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    value: https://explorer.copyrightchains.com/tx/0xe557e517f2260c2c230e7b1b78a28f70a20df4fd18b5983142693d0e4d33a641
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARW8Z2500001
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T07:22:18Z
  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 0xe557e517f2260c2c230e7b1b78a28f70a20df4fd18b5983142693d0e4d33a641. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ARW8Z2500001.
    date published: 2026-07-16T07:22:18Z
  audio: ESA FLOR - La de tu ventana
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
      value: 0.657
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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