Jorge Lefenda
type: MusicGroup
genre: tech house
popularity: 6
followers: 1535
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d9229eb265e1600664ded7c978dcd531d14d3569ec06cf5670c9f80b499041a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb1d5277-d5ce-46d1-83bd-c6aa73023390.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb1d5277-d5ce-46d1-83bd-c6aa73023390.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb1d5277-d5ce-46d1-83bd-c6aa73023390
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d9229eb265e1600664ded7c978dcd531d14d3569ec06cf5670c9f80b499041a","name":"Jorge Lefenda","registered_at":"2026-06-21T17:19:28Z","symbol":"NIM1981349","token_address":"0x17876025ef77debc98c278e56983c0f8044bbde4","type":"artist","uuid":"fb1d5277-d5ce-46d1-83bd-c6aa73023390"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9229eb265e1600664ded7c978dcd531d14d3569ec06cf5670c9f80b499041a. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb1d5277-d5ce-46d1-83bd-c6aa73023390.json and https://artists.proofprofile.net/proofs/artist/fb1d5277-d5ce-46d1-83bd-c6aa73023390.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0x7d9229eb265e1600664ded7c978dcd531d14d3569ec06cf5670c9f80b499041a","name":"Jorge Lefenda","registered_at":"2026-06-21T17:19:28Z","symbol":"NIM1981349","token_address":"0x17876025ef77debc98c278e56983c0f8044bbde4","type":"artist","uuid":"fb1d5277-d5ce-46d1-83bd-c6aa73023390"}
album: La Chilena
  type: MusicAlbum
  date published: 2020-09-12
  track: La Chilena
    type: MusicRecording
    duration: PT6M7S
    duration ms: 367638
    explicit: false
    by artist: Jorge Lefenda
    in album: La Chilena
      type: MusicAlbum
      date published: 2020-09-12
    genre: tech house
    isrc code: QZK6J2008055
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:43:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8c803851cd85503b16aa3c7aa605ad8caa5f4a35138478dee22f65bc396b9c09
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958242
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958242
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6J2008055
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:44:29Z
    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 0x8c803851cd85503b16aa3c7aa605ad8caa5f4a35138478dee22f65bc396b9c09. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:44:29Z), 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/QZK6J2008055.
      date published: 2026-07-16T07:44:29Z
    audio: La Chilena
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.012
      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: 0.809
      additional property: Energy
        type: PropertyValue
        value: 0.966
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.879
      additional property: Liveness
        type: PropertyValue
        value: 0.141
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.687
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.383
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Un Año +
  type: MusicAlbum
  date published: 2020-12-26
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  type: MusicAlbum
  date published: 2021-08-02
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  type: MusicAlbum
  date published: 2021-11-08
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  type: MusicAlbum
  date published: 2022-01-14
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  type: MusicAlbum
  date published: 2022-07-01
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  type: MusicAlbum
  date published: 2022-10-28
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  type: MusicAlbum
  date published: 2023-04-21
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  type: MusicAlbum
  date published: 2023-07-27
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  type: MusicAlbum
  date published: 2023-10-19
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  type: MusicAlbum
  date published: 2024-04-19
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  type: MusicAlbum
  date published: 2024-08-02
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  type: MusicAlbum
  date published: 2024-09-11
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  type: MusicAlbum
  date published: 2024-10-04