El Gran Jefe
type: MusicGroup
genre: cumbia
popularity: 4
followers: 204
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc05381db597ff40ffed42e14875907d3b39e3f45d05e3b16e2d145f1391af15e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c562a8ef-1df0-4753-9324-548e0d6589ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c562a8ef-1df0-4753-9324-548e0d6589ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c562a8ef-1df0-4753-9324-548e0d6589ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc05381db597ff40ffed42e14875907d3b39e3f45d05e3b16e2d145f1391af15e","name":"El Gran Jefe","registered_at":"2026-06-20T21:04:31Z","symbol":"NIM1714010","token_address":"0x4d8caa7fdb79aafb57021964f5895d1d8c892342","type":"artist","uuid":"c562a8ef-1df0-4753-9324-548e0d6589ed"}
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 0xc05381db597ff40ffed42e14875907d3b39e3f45d05e3b16e2d145f1391af15e. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c562a8ef-1df0-4753-9324-548e0d6589ed.json and https://artists.proofprofile.net/proofs/artist/c562a8ef-1df0-4753-9324-548e0d6589ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xc05381db597ff40ffed42e14875907d3b39e3f45d05e3b16e2d145f1391af15e","name":"El Gran Jefe","registered_at":"2026-06-20T21:04:31Z","symbol":"NIM1714010","token_address":"0x4d8caa7fdb79aafb57021964f5895d1d8c892342","type":"artist","uuid":"c562a8ef-1df0-4753-9324-548e0d6589ed"}
album: Ahora Y Siempre
  type: MusicAlbum
  date published: 2021-03-19
  track: Enfermera
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183092
    explicit: false
    by artist: El Gran Jefe
    in album: Ahora Y Siempre
      type: MusicAlbum
      date published: 2021-03-19
    genre: cumbia
    isrc code: US39K2106911
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:01:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x73b968a3edb78c375a9231d25eaf9e772fe7440c829c349135cbb3b1a0a8b939
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958867
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958867
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US39K2106911
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T14:01:59Z
    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 0x73b968a3edb78c375a9231d25eaf9e772fe7440c829c349135cbb3b1a0a8b939. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T14:01:59Z), 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/US39K2106911.
      date published: 2026-07-20T14:01:59Z
    audio: Enfermera
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 204.91
      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: 0.592
      additional property: Energy
        type: PropertyValue
        value: 0.779
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.446
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.076
      additional property: Liveness
        type: PropertyValue
        value: 0.217
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.942
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.644
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor