Isolina Carrillo
type: MusicGroup
genre: son cubano
description: Isolina Carrillo (December 9, 1907 – February 21, 1996) was a Cuban composer, singer and pianist. She was a member of the vocal group Conjunto Siboney. At the age of eleven she made her musical debut
popularity: 10
followers: 487
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x74645e3f211342b54e932f71b4fe518f31c9e0f8eba47865d8838c29b73bc748
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fef1609-f424-403d-95ff-0c3102b07a0e.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/9fef1609-f424-403d-95ff-0c3102b07a0e.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-20T07:04:44Z
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additional property: OTSVerifyInstructions
  type: PropertyValue
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74645e3f211342b54e932f71b4fe518f31c9e0f8eba47865d8838c29b73bc748. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9fef1609-f424-403d-95ff-0c3102b07a0e.json and https://artists.proofprofile.net/proofs/artist/9fef1609-f424-403d-95ff-0c3102b07a0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x74645e3f211342b54e932f71b4fe518f31c9e0f8eba47865d8838c29b73bc748","name":"Isolina Carrillo","registered_at":"2026-06-20T05:26:53Z","symbol":"NIM1525419","token_address":"0x042c35e2a310edb1eb4eeb58a7878a66bef0fc20","type":"artist","uuid":"9fef1609-f424-403d-95ff-0c3102b07a0e"}
album: Cuentos Y Cantos Infantiles, Vol. 4
  type: MusicAlbum
  date published: 2008-09-08
album: Carrillo: Dos gardenias
  type: MusicAlbum
  date published: 2023-03-03
  track: Dos gardenias (Arr. for Mezzo-Soprano, Guitar & Alto Saxophone by Gabriel Bianco)
    type: MusicRecording
    duration: PT4M10S
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    explicit: false
    by artist: Isolina Carrillo
    in album: Carrillo: Dos gardenias
      type: MusicAlbum
      date published: 2023-03-03
    genre: son cubano
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    additional property: CopyrightStatus
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      value: https://blockstream.info/api/block-height/957067
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV62231106
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-07T16:54:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7853356ab15c2943f670b05c6ad9a3ac4e559336b90399d77f2c63b08123b. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/FROV62231106.
      date published: 2026-07-07T16:54:37Z
    audio: Dos gardenias (Arr. for Mezzo-Soprano, Guitar & Alto Saxophone by Gabriel Bianco)
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      additional property: Mode (Major/Minor)
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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: 0.964
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.029
      additional property: Liveness
        type: PropertyValue
        value: 0.288
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.378
      additional property: Loudness (dB)
        type: PropertyValue
        value: -18.247
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
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track: Dos gardenias
  type: MusicRecording
  duration: PT5M5S
  duration ms: 305468
  explicit: false
  by artist: Isolina Carrillo
  by artist: Sarah Willis
  by artist: Harold Madrigal Frías
  by artist: Jorge Aragón
  by artist: Havana Lyceum Orchestra
  by artist: José Antonio Méndez Padrón
  in album: Mozart y Mambo
    type: MusicAlbum
    date published: 2020-07-10
  isrc code: FR50X2057809
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  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2057809
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9179461bc4d00d25e936db70950c3a41fa9c4a3ce9e6805292b8b8df99d7eeeb. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR50X2057809.
    date published: 2026-07-22T06:33:30Z
  audio: Dos gardenias
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 87.203
    additional property: Musical Key
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      value: 1
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
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      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.17
    additional property: Energy
      type: PropertyValue
      value: 0.155
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.982
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Dos gardenias (Arr. for Mezzo-Soprano, Guitar & Alto Saxophone by Gabriel Bianco)

Instrumentalness
type: PropertyValue
value: 0.934

Liveness
type: PropertyValue
value: 0.119

Valence (Positivity)
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value: 0.057

Loudness (dB)
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value: -20.378

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Dos gardenias (Arr. for Mezzo-Soprano, Guitar & Alto Saxophone by Gabriel Bianco)
type: MusicRecording
duration: PT4M10S
duration ms: 250746
explicit: false
by artist: Isolina Carrillo
by artist: Marina Viotti
by artist: Gabriel Bianco
by artist: Gerry Lopez
by artist: Leonard Disselhorst
in album: Porque existe otro querer
  type: MusicAlbum
  date published: 2023-04-14
isrc code: FROV62231106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-06T10:09:16+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x3de7853356ab15c2943f670b05c6ad9a3ac4e559336b90399d77f2c63b08123b
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV62231106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de7853356ab15c2943f670b05c6ad9a3ac4e559336b90399d77f2c63b08123b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV62231106.
  date published: 2026-07-08T03:20:19Z
audio: Dos gardenias (Arr. for Mezzo-Soprano, Guitar & Alto Saxophone by Gabriel Bianco)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.772
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.548
  additional property: Energy
    type: PropertyValue
    value: 0.133
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.029
  additional property: Liveness
    type: PropertyValue
    value: 0.288
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.247
  additional property: Key Name
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    value: E
  additional property: Mode Name
    type: PropertyValue
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