DUQUINHA
type: MusicGroup
genre: brega
genre: forró
genre: seresta
popularity: 7
followers: 277
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe0c65a8803a041bdb499353c65c49c19465528096fa6f86e11634645fc7a2c7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954028
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954028
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a1c3003-1b41-45d3-a797-3bc12c81fa16.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a1c3003-1b41-45d3-a797-3bc12c81fa16.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a1c3003-1b41-45d3-a797-3bc12c81fa16
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:08:06Z
additional property: OTSCanonicalRecord
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 0xe0c65a8803a041bdb499353c65c49c19465528096fa6f86e11634645fc7a2c7a. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a1c3003-1b41-45d3-a797-3bc12c81fa16.json and https://artists.proofprofile.net/proofs/artist/3a1c3003-1b41-45d3-a797-3bc12c81fa16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:08:06Z
album: AO VIVO NA VAQUEJADA DE RIO TINTO 2002
  type: MusicAlbum
  date published: 2002-05-01
album: CANTA BREGA 2005 (AO VIVO)
  type: MusicAlbum
  date published: 2005-05-01
album: AO VIVO 2005
  type: MusicAlbum
  date published: 2005-05-07
  track: Rôla - AO VIVO
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166635
    explicit: false
    by artist: DUQUINHA
    in album: AO VIVO 2005
      type: MusicAlbum
      date published: 2005-05-07
    genre: brega
    genre: forró
    genre: seresta
    isrc code: BXN9M2402109
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T22:39:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc92b5cc1c0971f46accf05ee1c56bace3d3ea476d1178580aba178d058471404
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXN9M2402109
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0xc92b5cc1c0971f46accf05ee1c56bace3d3ea476d1178580aba178d058471404. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BXN9M2402109.
      date published: 2026-07-19T07:14:39Z
    audio: Rôla - AO VIVO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.651
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.762
      additional property: Energy
        type: PropertyValue
        value: 0.985
      additional property: Speechiness
        type: PropertyValue
        value: 0.093
      additional property: Acousticness
        type: PropertyValue
        value: 0.685
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.315
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.764
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.734
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: AO VIVO EM SANTA RITA-PB 2006
  type: MusicAlbum
  date published: 2006-05-01
album: A Rôla e o Piriquito AO VIVO 2006
  type: MusicAlbum
  date published: 2006-05-01
album: AO VIVO EM ARARA-PB 2006
  type: MusicAlbum
  date published: 2006-05-01
album: AO VIVO EM PEDRAS DE FOGO-PB 2007
  type: MusicAlbum
  date published: 2007-05-01
album: AO VIVO EM SÃO JOSÉ DOS RAMOS-PB 2007
  type: MusicAlbum
  date published: 2007-05-01
album: AO VIVO NO CANTOS E CONTOS 2009
  type: MusicAlbum
  date published: 2009-05-08
album: Ao vivo Na Festa Profana Da Padroeira De Araruna 2010 (AO VIVO)
  type: MusicAlbum
  date published: 2010-05-07
album: AO VIVO NO CANTOS E CONTOS 2013
  type: MusicAlbum
  date published: 2013-05-03
album: AO VIVO NO CANTOS E CONTOS 2017
  type: MusicAlbum
  date published: 2017-05-01
album: AO VIVO EM SÃO JOSÉ DOS RAMOS-PB 2019
  type: MusicAlbum
  date published: 2019-05-01
album: ESTILO DE PATRAO AO VIVO 2019
  type: MusicAlbum
  date published: 2019-05-01
album: AO VIVO NO RIO DE JANEIRO 2022
  type: MusicAlbum
  date published: 2022-05-01
album: AO VIVO 2022
  type: MusicAlbum
  date published: 2022-05-06
album: Ao VIVO em Jaguaribe 2024 (AO VIVO)
  type: MusicAlbum
  date published: 2024-02-05
album: AO VIVO EM MAMANGUAPE-PB
  type: MusicAlbum
  date published: 2024-05-01
album: AO VIVO EM MAMANGUAPE-PB
  type: MusicAlbum
  date published: 2024-05-01
album: AO VIVO NO CANTOS E CONTOS 2024
  type: MusicAlbum
  date published: 2024-05-01