Cantor João Bastos
type: MusicGroup
genre: piseiro
popularity: 2
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x88a92bf51ba317ec30f9b3fe3c249aa3e14fce348c2c48227f22f9793fec504c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11ac1729-97a2-4a48-aed8-6bec0be677a6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11ac1729-97a2-4a48-aed8-6bec0be677a6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/11ac1729-97a2-4a48-aed8-6bec0be677a6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x88a92bf51ba317ec30f9b3fe3c249aa3e14fce348c2c48227f22f9793fec504c","name":"Cantor João Bastos","registered_at":"2026-06-15T19:38:09Z","symbol":"NIM0810911","token_address":"0x93ae09e5bbf6d106863373eb601338950e1eeee3","type":"artist","uuid":"11ac1729-97a2-4a48-aed8-6bec0be677a6"}
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 0x88a92bf51ba317ec30f9b3fe3c249aa3e14fce348c2c48227f22f9793fec504c. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11ac1729-97a2-4a48-aed8-6bec0be677a6.json and https://artists.proofprofile.net/proofs/artist/11ac1729-97a2-4a48-aed8-6bec0be677a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
  text: {"copyright_id":"0x88a92bf51ba317ec30f9b3fe3c249aa3e14fce348c2c48227f22f9793fec504c","name":"Cantor João Bastos","registered_at":"2026-06-15T19:38:09Z","symbol":"NIM0810911","token_address":"0x93ae09e5bbf6d106863373eb601338950e1eeee3","type":"artist","uuid":"11ac1729-97a2-4a48-aed8-6bec0be677a6"}
album: Piseiro 2021
  type: MusicAlbum
  date published: 2021-03-05
album: O Grave Tá Batendo
  type: MusicAlbum
  date published: 2021-06-24
album: Chama na Pressão
  type: MusicAlbum
  date published: 2021-06-24
  track: Tem Jeito Não
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170376
    explicit: false
    by artist: Cantor João Bastos
    in album: Chama na Pressão
      type: MusicAlbum
      date published: 2021-06-24
    genre: piseiro
    isrc code: BRT4U2100115
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:14:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x91702dd5daa5b08663dd88ec12c6cc9655a1d8d234b83a9b22bb30db45ec8d2b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRT4U2100115
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x91702dd5daa5b08663dd88ec12c6cc9655a1d8d234b83a9b22bb30db45ec8d2b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BRT4U2100115.
      date published: 2026-07-05T18:48:28Z
    audio: Tem Jeito Não
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 80.995
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.706
      additional property: Energy
        type: PropertyValue
        value: 0.787
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.61
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.891
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.025
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Vai Lá em Casa
  type: MusicAlbum
  date published: 2021-09-08
album: SEXTOU
  type: MusicAlbum
  date published: 2021-12-28
album: Provocou Aqui Tem
  type: MusicAlbum
  date published: 2021-12-28
album: Narrativa
  type: MusicAlbum
  date published: 2023-10-05