John Viana
type: MusicGroup
genre: brazilian gospel
popularity: 3
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x01a5f7d7096165131401d80dc13ce8df69151e801f2d84e75d54ecea378bcabb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97fef7e8-8210-4836-aea6-bb3d5ccb077f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/97fef7e8-8210-4836-aea6-bb3d5ccb077f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/97fef7e8-8210-4836-aea6-bb3d5ccb077f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x01a5f7d7096165131401d80dc13ce8df69151e801f2d84e75d54ecea378bcabb","name":"John Viana","registered_at":"2026-06-17T18:45:16Z","symbol":"NIM1485445","token_address":"0x945baf24561920f8c3be7d90f67676a408c04366","type":"artist","uuid":"97fef7e8-8210-4836-aea6-bb3d5ccb077f"}
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 0x01a5f7d7096165131401d80dc13ce8df69151e801f2d84e75d54ecea378bcabb. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97fef7e8-8210-4836-aea6-bb3d5ccb077f.json and https://artists.proofprofile.net/proofs/artist/97fef7e8-8210-4836-aea6-bb3d5ccb077f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x01a5f7d7096165131401d80dc13ce8df69151e801f2d84e75d54ecea378bcabb","name":"John Viana","registered_at":"2026-06-17T18:45:16Z","symbol":"NIM1485445","token_address":"0x945baf24561920f8c3be7d90f67676a408c04366","type":"artist","uuid":"97fef7e8-8210-4836-aea6-bb3d5ccb077f"}
album: Até Transbordar
  type: MusicAlbum
  date published: 2024-03-25
album: Até Transbordar
  type: MusicAlbum
  date published: 2024-03-25
album: Já Posso Sentir o Teu Perfume
  type: MusicAlbum
  date published: 2024-07-16
  track: Já Posso Sentir o Teu Perfume
    type: MusicRecording
    duration: PT7M10S
    duration ms: 430970
    explicit: false
    by artist: John Viana
    in album: Já Posso Sentir o Teu Perfume
      type: MusicAlbum
      date published: 2024-07-16
    genre: brazilian gospel
    isrc code: QZNJX2468152
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T03:06:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xde6255902844b288c5c986da4b78ce2bdfc092dcbd630fc563f8a3aff89b2a5e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958812
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958812
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJX2468152
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T03:24:09Z
    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 0xde6255902844b288c5c986da4b78ce2bdfc092dcbd630fc563f8a3aff89b2a5e. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZNJX2468152.
      date published: 2026-07-20T03:24:09Z
    audio: Já Posso Sentir o Teu Perfume
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.879
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.466
      additional property: Energy
        type: PropertyValue
        value: 0.491
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.571
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.076
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.18
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Já Posso Sentir o Teu Perfume
  type: MusicAlbum
  date published: 2024-07-16
album: A Ti Entrego (Acústica)
  type: MusicAlbum
  date published: 2024-12-24