Circo de Marvin
type: MusicGroup
genre: brazilian rock
genre: cedm
popularity: 8
followers: 3148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a87b9502ba41794c3d05ac7b9d142ccb29e683644e98edf8799cbf041f74c08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec1e781-e940-4df2-a692-b4e49e59fb31.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ec1e781-e940-4df2-a692-b4e49e59fb31.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ec1e781-e940-4df2-a692-b4e49e59fb31
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a87b9502ba41794c3d05ac7b9d142ccb29e683644e98edf8799cbf041f74c08","name":"Circo de Marvin","registered_at":"2026-06-15T18:55:15Z","symbol":"NIM0800671","token_address":"0x6ec6c130e7b3269eb23d81543cb2ad91c71d464d","type":"artist","uuid":"0ec1e781-e940-4df2-a692-b4e49e59fb31"}
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 0x1a87b9502ba41794c3d05ac7b9d142ccb29e683644e98edf8799cbf041f74c08. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ec1e781-e940-4df2-a692-b4e49e59fb31.json and https://artists.proofprofile.net/proofs/artist/0ec1e781-e940-4df2-a692-b4e49e59fb31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x1a87b9502ba41794c3d05ac7b9d142ccb29e683644e98edf8799cbf041f74c08","name":"Circo de Marvin","registered_at":"2026-06-15T18:55:15Z","symbol":"NIM0800671","token_address":"0x6ec6c130e7b3269eb23d81543cb2ad91c71d464d","type":"artist","uuid":"0ec1e781-e940-4df2-a692-b4e49e59fb31"}
album: Modo Hard
  type: MusicAlbum
  date published: 2015-09-07
  track: Você Me Fudeu
    type: MusicRecording
    duration: PT4M30S
    duration ms: 270328
    explicit: false
    by artist: Circo de Marvin
    in album: Modo Hard
      type: MusicAlbum
      date published: 2015-09-07
    genre: brazilian rock
    genre: cedm
    isrc code: BRXKE1500011
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:43:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9dbe19b05770057ba9a35ccc2d302502575a94bddb88e7f270d22097d7fa8c95
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRXKE1500011
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:49:48Z
    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 0x9dbe19b05770057ba9a35ccc2d302502575a94bddb88e7f270d22097d7fa8c95. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRXKE1500011.
      date published: 2026-07-19T17:49:48Z
    audio: Você Me Fudeu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.006
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.68
      additional property: Energy
        type: PropertyValue
        value: 0.769
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.128
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.752
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.06
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Circo de Marvin no Estúdio Showlivre (Ao Vivo)
  type: MusicAlbum
  date published: 2018-01-26
album: Ao Vivaço
  type: MusicAlbum
  date published: 2018-05-11
album: Vizinho de Baixo
  type: MusicAlbum
  date published: 2018-05-13