MC Chefinho
type: MusicGroup
genre: brega
genre: brega funk
genre: funk carioca
popularity: 10
followers: 2304
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x19650824219cb1dcfc3d8b81cfe85d1fe2750f2864678e3fce958c7175f1cc8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5183b58-44e0-4296-a2d2-26074fdb8a94.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5183b58-44e0-4296-a2d2-26074fdb8a94.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5183b58-44e0-4296-a2d2-26074fdb8a94
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x19650824219cb1dcfc3d8b81cfe85d1fe2750f2864678e3fce958c7175f1cc8f","name":"MC Chefinho","registered_at":"2026-06-20T07:11:23Z","symbol":"NIM1550101","token_address":"0x366344611ea0b3cabac73c20aa7831681c71b3f4","type":"artist","uuid":"a5183b58-44e0-4296-a2d2-26074fdb8a94"}
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 0x19650824219cb1dcfc3d8b81cfe85d1fe2750f2864678e3fce958c7175f1cc8f. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5183b58-44e0-4296-a2d2-26074fdb8a94.json and https://artists.proofprofile.net/proofs/artist/a5183b58-44e0-4296-a2d2-26074fdb8a94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x19650824219cb1dcfc3d8b81cfe85d1fe2750f2864678e3fce958c7175f1cc8f","name":"MC Chefinho","registered_at":"2026-06-20T07:11:23Z","symbol":"NIM1550101","token_address":"0x366344611ea0b3cabac73c20aa7831681c71b3f4","type":"artist","uuid":"a5183b58-44e0-4296-a2d2-26074fdb8a94"}
album: Vai no Chão Treme o Bum Bum
  type: MusicAlbum
  date published: 2018-05-07
album: Cabelinho Colorido
  type: MusicAlbum
  date published: 2020-08-22
album: Mentirosa
  type: MusicAlbum
  date published: 2021-05-16
album: Vou Passar Vou Rocar
  type: MusicAlbum
  date published: 2021-06-01
album: Vou Passar Com a Glock Nela (feat. Rennan da Penha) [Remix]
  type: MusicAlbum
  date published: 2022-03-21
album: Vou Passar Com a Glock Nela (feat. Rennan da Penha) [Remix]
  type: MusicAlbum
  date published: 2022-03-21
album: Ela Faz o Reverse
  type: MusicAlbum
  date published: 2022-07-01
album: Pegar Marquinha
  type: MusicAlbum
  date published: 2022-12-05
album: Novinho Terrorista
  type: MusicAlbum
  date published: 2022-12-10
album: Aproveita Teu Momento
  type: MusicAlbum
  date published: 2023-03-03
album: Revoada
  type: MusicAlbum
  date published: 2024-03-02
album: Faixa Preta
  type: MusicAlbum
  date published: 2025-08-14
album: Menor Deliquente
  type: MusicAlbum
  date published: 2025-08-15
track: E Fuga
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141357
  explicit: false
  by artist: Boyugo
  by artist: Arthuzinho batedeira
  by artist: MC Chefinho
  by artist: marcelinho 01
  in album: E Fuga
    type: MusicAlbum
    date published: 2025-01-09
  isrc code: US7VG2525920
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T21:10:48+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3154a2628a17a78a114679209eb41e33ee8f052ab569ba8b6f84f8db26b36158
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960468
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960468
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2525920
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T21:25:57Z
  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 0x3154a2628a17a78a114679209eb41e33ee8f052ab569ba8b6f84f8db26b36158. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/US7VG2525920.
    date published: 2026-07-31T21:25:57Z
  audio: E Fuga
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.196
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.842
    additional property: Energy
      type: PropertyValue
      value: 0.952
    additional property: Speechiness
      type: PropertyValue
      value: 0.185
    additional property: Acousticness
      type: PropertyValue
      value: 0.228
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.368
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.97
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.509
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor