Joãozinho.Ea
type: MusicGroup
popularity: 5
followers: 621
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x055725af9b0b63023521824ca0a1396903fc365fa612f63e04699cb1742e86bc
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/6180d9b5-2f49-4ac4-928d-639d5f3132af.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6180d9b5-2f49-4ac4-928d-639d5f3132af.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6180d9b5-2f49-4ac4-928d-639d5f3132af
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x055725af9b0b63023521824ca0a1396903fc365fa612f63e04699cb1742e86bc","name":"Joãozinho.Ea","registered_at":"2026-06-16T23:39:04Z","symbol":"NIM1212057","token_address":"0xe7dd75cc93f6321a6e3c2fdb51c7aa3f233ac2ba","type":"artist","uuid":"6180d9b5-2f49-4ac4-928d-639d5f3132af"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055725af9b0b63023521824ca0a1396903fc365fa612f63e04699cb1742e86bc. 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/6180d9b5-2f49-4ac4-928d-639d5f3132af.json and https://artists.proofprofile.net/proofs/artist/6180d9b5-2f49-4ac4-928d-639d5f3132af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x055725af9b0b63023521824ca0a1396903fc365fa612f63e04699cb1742e86bc","name":"Joãozinho.Ea","registered_at":"2026-06-16T23:39:04Z","symbol":"NIM1212057","token_address":"0xe7dd75cc93f6321a6e3c2fdb51c7aa3f233ac2ba","type":"artist","uuid":"6180d9b5-2f49-4ac4-928d-639d5f3132af"}
album: Um Abraão
  type: MusicAlbum
  date published: 2020-02-15
  track: Agora Sou Teu
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233400
    explicit: false
    by artist: Joãozinho.Ea
    in album: Um Abraão
      type: MusicAlbum
      date published: 2020-02-15
    isrc code: USCGJ2007837
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T12:40:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xabd670fe501bd5aa88b563de09907a36b24dace3b99306989cbaffe4b3e05835
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959008
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959008
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2007837
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T13:14:05Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd670fe501bd5aa88b563de09907a36b24dace3b99306989cbaffe4b3e05835. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USCGJ2007837.
      date published: 2026-07-21T13:14:05Z
    audio: Agora Sou Teu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.649
      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: 0.4
      additional property: Energy
        type: PropertyValue
        value: 0.214
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.828
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.538
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.245
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major