Duo Enves
type: MusicGroup
genre: folklore argentino
album: Total interferencia
  type: MusicAlbum
  date published: 2020
album: Pétalo de sal
  type: MusicAlbum
  date published: 2020-09-21
album: Pétalo de Sal
  type: MusicAlbum
  date published: 2020-09-21
album: El surco
  type: MusicAlbum
  date published: 2020-10-02
album: El Surco
  type: MusicAlbum
  date published: 2020-10-02
album: Total Interferencia
  type: MusicAlbum
  date published: 2020-10-16
album: Manifiesto
  type: MusicAlbum
  date published: 2020-11-27
  track: El surco
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229622
    explicit: false
    by artist: Duo Enves
    in album: Manifiesto
      type: MusicAlbum
      date published: 2020-11-27
    genre: folklore argentino
    isrc code: ARR6V2000328
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 960144
    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/960144
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARR6V2000328
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-29T21:09:47Z
    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 0x99dd329ec7d397e0a2318afcdb634d54ebc30ee0b9044faf8bcc01019e129022. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ARR6V2000328.
      date published: 2026-07-29T21:09:47Z
    audio: El surco
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.611
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.584
      additional property: Energy
        type: PropertyValue
        value: 0.42
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.744
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.36
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.652
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.381
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Manifiesto
  type: MusicAlbum
  date published: 2020-11-27