Olegário Lucena
type: MusicGroup
album: Olegário Lucena
  type: MusicAlbum
  date published: 2021-12-15
  track: Dum Pé de Juá
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182459
    explicit: false
    by artist: Olegário Lucena
    by artist: Almério
    in album: Olegário Lucena
      type: MusicAlbum
      date published: 2021-12-15
    isrc code: BXOLE2100010
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-08-01T03:28:06+00:00
    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x9c267668fca1aa8cb1e978fc4731d4d75300bce43947c2934070586711b748a5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 960506
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960506
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXOLE2100010
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-08-01T03:50:58Z
    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 0x9c267668fca1aa8cb1e978fc4731d4d75300bce43947c2934070586711b748a5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXOLE2100010 — a six-check JSON result.
      date published: 2026-08-01T03:50:58Z
    audio: Dum Pé de Juá
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.014
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.779
      additional property: Energy
        type: PropertyValue
        value: 0.578
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.193
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.061
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.803
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.435
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
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  type: MusicAlbum
  date published: 2020-06-08
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  date published: 2024-09-21
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-06-25