Onildo Barbosa
type: MusicGroup
genre: forró
genre: forro tradicional
popularity: 5
followers: 156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x665ee4f0e9c959f9ee6fd9060f4cb09b7d881bcccfb9685c275d4653a6239fff
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/638d8bdb-4ed7-4494-982a-3640e0c86c9f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/638d8bdb-4ed7-4494-982a-3640e0c86c9f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/638d8bdb-4ed7-4494-982a-3640e0c86c9f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x665ee4f0e9c959f9ee6fd9060f4cb09b7d881bcccfb9685c275d4653a6239fff","name":"Onildo Barbosa","registered_at":"2026-06-17T00:23:24Z","symbol":"NIM1222649","token_address":"0x17dacaf2990644815109048bae03c565965dc02e","type":"artist","uuid":"638d8bdb-4ed7-4494-982a-3640e0c86c9f"}
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 0x665ee4f0e9c959f9ee6fd9060f4cb09b7d881bcccfb9685c275d4653a6239fff. 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/638d8bdb-4ed7-4494-982a-3640e0c86c9f.json and https://artists.proofprofile.net/proofs/artist/638d8bdb-4ed7-4494-982a-3640e0c86c9f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x665ee4f0e9c959f9ee6fd9060f4cb09b7d881bcccfb9685c275d4653a6239fff","name":"Onildo Barbosa","registered_at":"2026-06-17T00:23:24Z","symbol":"NIM1222649","token_address":"0x17dacaf2990644815109048bae03c565965dc02e","type":"artist","uuid":"638d8bdb-4ed7-4494-982a-3640e0c86c9f"}
album: Pôr Detrás da Moita
  type: MusicAlbum
  date published: 2000-05-20
  track: Cabana do Amor
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237693
    explicit: false
    by artist: Onildo Barbosa
    in album: Pôr Detrás da Moita
      type: MusicAlbum
      date published: 2000-05-20
    genre: forró
    genre: forro tradicional
    isrc code: BRFAM1901388
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T03:05:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2a1f63b78b43ea309f76f68000d1ad4e7aba43f06c508cf15b5d9c49e0f3af6d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958357
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958357
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRFAM1901388
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T03:33:42Z
    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 0x2a1f63b78b43ea309f76f68000d1ad4e7aba43f06c508cf15b5d9c49e0f3af6d. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRFAM1901388.
      date published: 2026-07-17T03:33:42Z
    audio: Cabana do Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.849
      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: 0.709
      additional property: Energy
        type: PropertyValue
        value: 0.594
      additional property: Speechiness
        type: PropertyValue
        value: 0.102
      additional property: Acousticness
        type: PropertyValue
        value: 0.144
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.283
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.65
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.74
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Forró Também É Cultura
  type: MusicAlbum
  date published: 2004-09-21