Markin Na Voz
type: MusicGroup
genre: reggae
popularity: 4
followers: 1033
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2840c7e686f954a16736d9a174b236f6c65ffe9f0afc1e863336dd8bf90c5ce6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/044f2ca4-fc50-4b44-a6a9-2d655e912a14.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/044f2ca4-fc50-4b44-a6a9-2d655e912a14.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/044f2ca4-fc50-4b44-a6a9-2d655e912a14
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2840c7e686f954a16736d9a174b236f6c65ffe9f0afc1e863336dd8bf90c5ce6","name":"Markin Na Voz","registered_at":"2026-06-15T15:05:49Z","symbol":"NIM0745912","token_address":"0x42681b55aab9191422b2e1ee9034b63a81771fa6","type":"artist","uuid":"044f2ca4-fc50-4b44-a6a9-2d655e912a14"}
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 0x2840c7e686f954a16736d9a174b236f6c65ffe9f0afc1e863336dd8bf90c5ce6. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/044f2ca4-fc50-4b44-a6a9-2d655e912a14.json and https://artists.proofprofile.net/proofs/artist/044f2ca4-fc50-4b44-a6a9-2d655e912a14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x2840c7e686f954a16736d9a174b236f6c65ffe9f0afc1e863336dd8bf90c5ce6","name":"Markin Na Voz","registered_at":"2026-06-15T15:05:49Z","symbol":"NIM0745912","token_address":"0x42681b55aab9191422b2e1ee9034b63a81771fa6","type":"artist","uuid":"044f2ca4-fc50-4b44-a6a9-2d655e912a14"}
album: Melô de Lança bolado
  type: MusicAlbum
  date published: 2023-03-24
  track: Melô de Lança bolado
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186618
    explicit: true
    by artist: Markin Na Voz
    in album: Melô de Lança bolado
      type: MusicAlbum
      date published: 2023-03-24
    genre: reggae
    isrc code: BX4IU2313152
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T14:35:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x039ebb8d28649d2aefa28ebaba6e94bdadccd9cb78c3aded1db8da2c915f2575
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4IU2313152
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:14:30Z
    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 0x039ebb8d28649d2aefa28ebaba6e94bdadccd9cb78c3aded1db8da2c915f2575. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BX4IU2313152.
      date published: 2026-07-16T16:14:30Z
    audio: Melô de Lança bolado
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.003
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.777
      additional property: Energy
        type: PropertyValue
        value: 0.694
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.697
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.16
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.338
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Melô de Catucadão (Remix)
  type: MusicAlbum
  date published: 2023-07-17
album: Melô de Corpo Sedutor
  type: MusicAlbum
  date published: 2023-10-06
album: Melô de Linda (Remix)
  type: MusicAlbum
  date published: 2023-10-06