Bárbara Greco
type: MusicGroup
genre: forró
genre: forro tradicional
popularity: 15
followers: 948
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x066065d2b4668981de0c67502b040f50306e8c68686d52037f75359b4b6b62ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/518e9794-c835-4985-9e4c-c8c8d81f5010.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/518e9794-c835-4985-9e4c-c8c8d81f5010.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/518e9794-c835-4985-9e4c-c8c8d81f5010
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x066065d2b4668981de0c67502b040f50306e8c68686d52037f75359b4b6b62ed","name":"Bárbara Greco","registered_at":"2026-06-14T13:00:19Z","symbol":"NIM0460617","token_address":"0x136dd1c8d8d2f0b437d299eb8892a9edbcff586b","type":"artist","uuid":"518e9794-c835-4985-9e4c-c8c8d81f5010"}
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 0x066065d2b4668981de0c67502b040f50306e8c68686d52037f75359b4b6b62ed. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/518e9794-c835-4985-9e4c-c8c8d81f5010.json and https://artists.proofprofile.net/proofs/artist/518e9794-c835-4985-9e4c-c8c8d81f5010.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0x066065d2b4668981de0c67502b040f50306e8c68686d52037f75359b4b6b62ed","name":"Bárbara Greco","registered_at":"2026-06-14T13:00:19Z","symbol":"NIM0460617","token_address":"0x136dd1c8d8d2f0b437d299eb8892a9edbcff586b","type":"artist","uuid":"518e9794-c835-4985-9e4c-c8c8d81f5010"}
album: Riso Frouxo
  type: MusicAlbum
  date published: 2017-12-01
album: Velha Roupa Colorida (Cover)
  type: MusicAlbum
  date published: 2021-06-17
album: Atraverso
  type: MusicAlbum
  date published: 2021-06-21
album: Acalanto
  type: MusicAlbum
  date published: 2021-06-21
album: Bom Forró (Cover)
  type: MusicAlbum
  date published: 2021-06-22
album: Riso Frouxo
  type: MusicAlbum
  date published: 2024-07-15
  track: Riso Frouxo
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137978
    explicit: false
    by artist: Bárbara Greco
    in album: Riso Frouxo
      type: MusicAlbum
      date published: 2024-07-15
    genre: forró
    genre: forro tradicional
    isrc code: QZNJY2442285
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T05:22:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0857a786fe733c656e20ad83c48f005f729bf5fc0f09a5da100e876a915695e1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958371
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958371
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2442285
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T05:45:43Z
    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 0x0857a786fe733c656e20ad83c48f005f729bf5fc0f09a5da100e876a915695e1. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZNJY2442285.
      date published: 2026-07-17T05:45:43Z
    audio: Riso Frouxo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.954
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.671
      additional property: Energy
        type: PropertyValue
        value: 0.364
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.725
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.154
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.667
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.257
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Na Barra da Tua Saia
  type: MusicAlbum
  date published: 2024-10-11