Lucas Duarte
type: MusicGroup
genre: tech house
popularity: 4
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40e9fca8443f3220b7fb866de84242d36e2c1ad6e39a0a976efb51b83db5f173
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/752ae261-41a3-4080-95d7-bc365d84edc4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/752ae261-41a3-4080-95d7-bc365d84edc4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/752ae261-41a3-4080-95d7-bc365d84edc4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x40e9fca8443f3220b7fb866de84242d36e2c1ad6e39a0a976efb51b83db5f173","name":"Lucas Duarte","registered_at":"2026-06-17T06:52:53Z","symbol":"NIM1315599","token_address":"0x008791dca8169b00692f2e438d1e2baf30cdaebd","type":"artist","uuid":"752ae261-41a3-4080-95d7-bc365d84edc4"}
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 0x40e9fca8443f3220b7fb866de84242d36e2c1ad6e39a0a976efb51b83db5f173. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/752ae261-41a3-4080-95d7-bc365d84edc4.json and https://artists.proofprofile.net/proofs/artist/752ae261-41a3-4080-95d7-bc365d84edc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x40e9fca8443f3220b7fb866de84242d36e2c1ad6e39a0a976efb51b83db5f173","name":"Lucas Duarte","registered_at":"2026-06-17T06:52:53Z","symbol":"NIM1315599","token_address":"0x008791dca8169b00692f2e438d1e2baf30cdaebd","type":"artist","uuid":"752ae261-41a3-4080-95d7-bc365d84edc4"}
album: Police
  type: MusicAlbum
  date published: 2024-01-15
album: Viento
  type: MusicAlbum
  date published: 2024-02-09
album: Is Mine
  type: MusicAlbum
  date published: 2024-10-11
  track: Is Mine
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176000
    explicit: false
    by artist: Lucas Duarte
    in album: Is Mine
      type: MusicAlbum
      date published: 2024-10-11
    genre: tech house
    isrc code: GBKQU2493283
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:06:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5ab794312508cc073e6e08e7e67f7f0026a5117eaf45c5bd3915573674f24d63
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2493283
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x5ab794312508cc073e6e08e7e67f7f0026a5117eaf45c5bd3915573674f24d63. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBKQU2493283.
      date published: 2026-07-05T19:27:56Z
    audio: Is Mine
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.002
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.82
      additional property: Energy
        type: PropertyValue
        value: 0.551
      additional property: Speechiness
        type: PropertyValue
        value: 0.197
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.561
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.321
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.852
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Daamn
  type: MusicAlbum
  date published: 2024-11-08
album: Butt
  type: MusicAlbum
  date published: 2024-12-06
album: Musica
  type: MusicAlbum
  date published: 2025-05-23