Preto raffa
type: MusicGroup
popularity: 17
followers: 408
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4b9ca62bd892bbb18819bcc01fc8edafa26bdb8a9244826ee96b6b0f16365669
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4f777ce-6ab8-4b1d-801c-b6d3e91db713.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4f777ce-6ab8-4b1d-801c-b6d3e91db713.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4f777ce-6ab8-4b1d-801c-b6d3e91db713
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4b9ca62bd892bbb18819bcc01fc8edafa26bdb8a9244826ee96b6b0f16365669","name":"Preto raffa","registered_at":"2026-06-14T23:33:31Z","symbol":"NIM0611645","token_address":"0x4ac07e2318ac8630813f97d7fcfc4d9fdcdf5282","type":"artist","uuid":"b4f777ce-6ab8-4b1d-801c-b6d3e91db713"}
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 0x4b9ca62bd892bbb18819bcc01fc8edafa26bdb8a9244826ee96b6b0f16365669. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4f777ce-6ab8-4b1d-801c-b6d3e91db713.json and https://artists.proofprofile.net/proofs/artist/b4f777ce-6ab8-4b1d-801c-b6d3e91db713.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x4b9ca62bd892bbb18819bcc01fc8edafa26bdb8a9244826ee96b6b0f16365669","name":"Preto raffa","registered_at":"2026-06-14T23:33:31Z","symbol":"NIM0611645","token_address":"0x4ac07e2318ac8630813f97d7fcfc4d9fdcdf5282","type":"artist","uuid":"b4f777ce-6ab8-4b1d-801c-b6d3e91db713"}
album: Renascendo das Cinzas
  type: MusicAlbum
  date published: 2019-12-23
album: Queixa Pro B.I.G
  type: MusicAlbum
  date published: 2020-12-28
album: O Jogo Virou
  type: MusicAlbum
  date published: 2021-02-20
album: Booling
  type: MusicAlbum
  date published: 2021-03-27
album: O Pacto
  type: MusicAlbum
  date published: 2021-04-15
album: Favela Venceu?
  type: MusicAlbum
  date published: 2021-05-15
album: Ela Tem um Namorado
  type: MusicAlbum
  date published: 2021-06-16
album: Nós por Nós
  type: MusicAlbum
  date published: 2021-07-28
album: Overdose
  type: MusicAlbum
  date published: 2021-09-24
album: Justiceiro Até Morrer
  type: MusicAlbum
  date published: 2021-11-19
album: Roubei a Cena
  type: MusicAlbum
  date published: 2022-02-25
album: Não Chore Mãe
  type: MusicAlbum
  date published: 2022-04-15
album: Pisando e Metendo
  type: MusicAlbum
  date published: 2022-06-17
album: O Crime
  type: MusicAlbum
  date published: 2022-08-19
album: Ela É Sua ou Ela É Minha
  type: MusicAlbum
  date published: 2022-11-18
album: De Salvador à Califórnia
  type: MusicAlbum
  date published: 2022-12-16
album: Fadas e Castelos
  type: MusicAlbum
  date published: 2023-02-17
album: Trajado de Pixain
  type: MusicAlbum
  date published: 2023-04-28
album: Entre o amor e o Ódio
  type: MusicAlbum
  date published: 2023-09-22
album: Os Rappers Também Amam
  type: MusicAlbum
  date published: 2024-02-23
album: Rajada de palavra
  type: MusicAlbum
  date published: 2025-01-31
album: Os Bicos
  type: MusicAlbum
  date published: 2025-03-28
  track: Os Bicos
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219750
    explicit: true
    by artist: Preto raffa
    in album: Os Bicos
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: BCFJ02300003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:40:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0c736fab195d97672d429f99c1b385b9e9f9b3e7260e6acd112e5d0ceb81c0b6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959094
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959094
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCFJ02300003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T03:33:16Z
    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 0x0c736fab195d97672d429f99c1b385b9e9f9b3e7260e6acd112e5d0ceb81c0b6. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCFJ02300003 — a six-check JSON result.
      date published: 2026-07-22T03:33:16Z
    audio: Os Bicos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.908
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.81
      additional property: Energy
        type: PropertyValue
        value: 0.447
      additional property: Speechiness
        type: PropertyValue
        value: 0.452
      additional property: Acousticness
        type: PropertyValue
        value: 0.382
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.013
      additional property: Liveness
        type: PropertyValue
        value: 0.078
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.567
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.387
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major