Marcus Cintra
type: MusicGroup
popularity: 3
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0081f2b192ba62f54dc5fe6a9b0c797d9ad0843e490dea8b3872c01a6e1ad491
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46547fe8-dd7d-4b63-b429-721af8d580af.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46547fe8-dd7d-4b63-b429-721af8d580af.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46547fe8-dd7d-4b63-b429-721af8d580af
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0081f2b192ba62f54dc5fe6a9b0c797d9ad0843e490dea8b3872c01a6e1ad491","name":"Marcus Cintra","registered_at":"2026-06-16T14:24:27Z","symbol":"NIM1079740","token_address":"0x08f50e3b8051081ab7ccbaf5332c9e612c813605","type":"artist","uuid":"46547fe8-dd7d-4b63-b429-721af8d580af"}
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 0x0081f2b192ba62f54dc5fe6a9b0c797d9ad0843e490dea8b3872c01a6e1ad491. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46547fe8-dd7d-4b63-b429-721af8d580af.json and https://artists.proofprofile.net/proofs/artist/46547fe8-dd7d-4b63-b429-721af8d580af.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0x0081f2b192ba62f54dc5fe6a9b0c797d9ad0843e490dea8b3872c01a6e1ad491","name":"Marcus Cintra","registered_at":"2026-06-16T14:24:27Z","symbol":"NIM1079740","token_address":"0x08f50e3b8051081ab7ccbaf5332c9e612c813605","type":"artist","uuid":"46547fe8-dd7d-4b63-b429-721af8d580af"}
album: Pra Você Sempre Fiel
  type: MusicAlbum
  date published: 2024-04-03
album: Luxo do Amor
  type: MusicAlbum
  date published: 2024-05-13
album: Trepadeira
  type: MusicAlbum
  date published: 2024-05-16
album: Você Se Apaixonou
  type: MusicAlbum
  date published: 2024-05-16
album: Cê Liga Menos
  type: MusicAlbum
  date published: 2024-07-09
album: Raio de Sol
  type: MusicAlbum
  date published: 2024-10-21
album: Cê Fica Feia
  type: MusicAlbum
  date published: 2025-01-27
album: Ela é uma Deusa
  type: MusicAlbum
  date published: 2025-05-30
album: Pot-Porri Pra Você Sempre Fiel, Rosas, Versos e Vinho, Outra Vida
  type: MusicAlbum
  date published: 2025-07-15
album: Intro Remix Cintra
  type: MusicAlbum
  date published: 2025-09-01
  track: Intro Remix Cintra
    type: MusicRecording
    duration: PT5M37S
    duration ms: 337749
    explicit: false
    by artist: Marcus Cintra
    in album: Intro Remix Cintra
      type: MusicAlbum
      date published: 2025-09-01
    isrc code: BK3A92500004
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T00:16:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb3140d457be5bb559d1d2efa45f81a9ad97482fab9beb241fc92cbe8519e8c12
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK3A92500004
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 0xb3140d457be5bb559d1d2efa45f81a9ad97482fab9beb241fc92cbe8519e8c12. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BK3A92500004.
      date published: 2026-07-17T00:53:26Z
    audio: Intro Remix Cintra
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.988
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.666
      additional property: Energy
        type: PropertyValue
        value: 0.885
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      additional property: Acousticness
        type: PropertyValue
        value: 0.207
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.442
      additional property: Liveness
        type: PropertyValue
        value: 0.176
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.125
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.578
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Pra Você Sempre Fiel Slowed Remix
  type: MusicAlbum
  date published: 2025-09-23
album: Raio de Sol Remix
  type: MusicAlbum
  date published: 2025-10-09