João Bandeira & João Bandeira Jr.
type: MusicGroup
genre: forró
genre: forro tradicional
popularity: 5
followers: 1669
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7668dd7f4a9bf59e086a4dcea10632cb1c07a54ab1631a962a3aa5c4ef267571
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9e24c2b-92fc-45ec-8e2a-6e4efda44104.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9e24c2b-92fc-45ec-8e2a-6e4efda44104.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e9e24c2b-92fc-45ec-8e2a-6e4efda44104
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7668dd7f4a9bf59e086a4dcea10632cb1c07a54ab1631a962a3aa5c4ef267571","name":"João Bandeira & João Bandeira Jr.","registered_at":"2026-06-21T10:38:53Z","symbol":"NIM1900575","token_address":"0xfc35a1fb1c1174001d142836b3a59a76bb9d5663","type":"artist","uuid":"e9e24c2b-92fc-45ec-8e2a-6e4efda44104"}
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 0x7668dd7f4a9bf59e086a4dcea10632cb1c07a54ab1631a962a3aa5c4ef267571. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9e24c2b-92fc-45ec-8e2a-6e4efda44104.json and https://artists.proofprofile.net/proofs/artist/e9e24c2b-92fc-45ec-8e2a-6e4efda44104.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x7668dd7f4a9bf59e086a4dcea10632cb1c07a54ab1631a962a3aa5c4ef267571","name":"João Bandeira & João Bandeira Jr.","registered_at":"2026-06-21T10:38:53Z","symbol":"NIM1900575","token_address":"0xfc35a1fb1c1174001d142836b3a59a76bb9d5663","type":"artist","uuid":"e9e24c2b-92fc-45ec-8e2a-6e4efda44104"}
album: Fungando no Cangote
  type: MusicAlbum
  date published: 2007-12-20
  track: Rei do Baralho
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168986
    explicit: false
    by artist: João Bandeira & João Bandeira Jr.
    in album: Fungando no Cangote
      type: MusicAlbum
      date published: 2007-12-20
    genre: forró
    genre: forro tradicional
    isrc code: BRDI70701029
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T16:37:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba5dee20dac2f69761b7e7c7f424dd3014c8828f99cfa8d671625db074c9ee1e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959037
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959037
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRDI70701029
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T16:59:47Z
    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 0xba5dee20dac2f69761b7e7c7f424dd3014c8828f99cfa8d671625db074c9ee1e. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/BRDI70701029.
      date published: 2026-07-21T16:59:47Z
    audio: Rei do Baralho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.983
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.787
      additional property: Energy
        type: PropertyValue
        value: 0.777
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.226
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.063
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.637
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.683
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major