WQ Carvalho
type: MusicGroup
popularity: 7
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc81056b77f5ca71639f3ca06b7d8f99800a0b5a3d95c6b7d109a3cb5424e8f95
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/fbc75db6-415e-4fe5-b0fa-d744f69e1385.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fbc75db6-415e-4fe5-b0fa-d744f69e1385.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fbc75db6-415e-4fe5-b0fa-d744f69e1385
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc81056b77f5ca71639f3ca06b7d8f99800a0b5a3d95c6b7d109a3cb5424e8f95","name":"WQ Carvalho","registered_at":"2026-06-21T17:20:00Z","symbol":"NIM1984902","token_address":"0x02fd6c645487e75a44efff9644d9af355c49b40d","type":"artist","uuid":"fbc75db6-415e-4fe5-b0fa-d744f69e1385"}
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 0xc81056b77f5ca71639f3ca06b7d8f99800a0b5a3d95c6b7d109a3cb5424e8f95. 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/fbc75db6-415e-4fe5-b0fa-d744f69e1385.json and https://artists.proofprofile.net/proofs/artist/fbc75db6-415e-4fe5-b0fa-d744f69e1385.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
  text: {"copyright_id":"0xc81056b77f5ca71639f3ca06b7d8f99800a0b5a3d95c6b7d109a3cb5424e8f95","name":"WQ Carvalho","registered_at":"2026-06-21T17:20:00Z","symbol":"NIM1984902","token_address":"0x02fd6c645487e75a44efff9644d9af355c49b40d","type":"artist","uuid":"fbc75db6-415e-4fe5-b0fa-d744f69e1385"}
album: Senhor dos Senhores
  type: MusicAlbum
  date published: 2020-12-22
album: Sou Teu Melhor Amigo
  type: MusicAlbum
  date published: 2022-07-10
album: Sorrindo de Novo
  type: MusicAlbum
  date published: 2022-08-05
album: Posse da Vitória
  type: MusicAlbum
  date published: 2022-09-10
album: Nascer de Novo
  type: MusicAlbum
  date published: 2022-12-26
album: Nascer de Novo
  type: MusicAlbum
  date published: 2022-12-26
album: Jeremias 33
  type: MusicAlbum
  date published: 2023-08-11
album: Deus Proverá
  type: MusicAlbum
  date published: 2023-10-23
album: Tô Cheia de Amor
  type: MusicAlbum
  date published: 2023-10-25
album: Não Vou Parar
  type: MusicAlbum
  date published: 2024-04-29
album: Simplesmente Tudo
  type: MusicAlbum
  date published: 2024-07-26
album: Vem
  type: MusicAlbum
  date published: 2024-11-29
  track: Vem
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242525
    explicit: false
    by artist: WQ Carvalho
    in album: Vem
      type: MusicAlbum
      date published: 2024-11-29
    isrc code: BKQQH2400004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T09:05:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb6c7835e87fe6f4d8173c055e45bd50ce9a5419aca19b2e280e08d8c015b471d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958137
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958137
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKQQH2400004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T09:47:57Z
    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 0xb6c7835e87fe6f4d8173c055e45bd50ce9a5419aca19b2e280e08d8c015b471d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/BKQQH2400004.
      date published: 2026-07-15T09:47:57Z
    audio: Vem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.931
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.593
      additional property: Energy
        type: PropertyValue
        value: 0.632
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.48
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.477
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.543
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major