Mc Duna
type: MusicGroup
popularity: 10
followers: 228
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x83778c29ea8e5dccf917f42839209b83c4ee9e9de2c705a19ccf886f2534d4ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953968
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953968
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2842152d-ed70-4fca-adf6-f8ec0e348301.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2842152d-ed70-4fca-adf6-f8ec0e348301.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2842152d-ed70-4fca-adf6-f8ec0e348301
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:01:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x83778c29ea8e5dccf917f42839209b83c4ee9e9de2c705a19ccf886f2534d4ed","name":"Mc Duna","registered_at":"2026-06-16T03:37:28Z","symbol":"NIM0925307","token_address":"0x7af2e39c7684c9eac50bdd4d69447c6757643d06","type":"artist","uuid":"2842152d-ed70-4fca-adf6-f8ec0e348301"}
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 0x83778c29ea8e5dccf917f42839209b83c4ee9e9de2c705a19ccf886f2534d4ed. Chain 2 (Bitcoin): anchored in block 953968 (2026-06-16T16:01:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2842152d-ed70-4fca-adf6-f8ec0e348301.json and https://artists.proofprofile.net/proofs/artist/2842152d-ed70-4fca-adf6-f8ec0e348301.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:01:49Z
  text: {"copyright_id":"0x83778c29ea8e5dccf917f42839209b83c4ee9e9de2c705a19ccf886f2534d4ed","name":"Mc Duna","registered_at":"2026-06-16T03:37:28Z","symbol":"NIM0925307","token_address":"0x7af2e39c7684c9eac50bdd4d69447c6757643d06","type":"artist","uuid":"2842152d-ed70-4fca-adf6-f8ec0e348301"}
album: Malvada
  type: MusicAlbum
  date published: 2021-05-13
album: Lacoste White
  type: MusicAlbum
  date published: 2021-05-21
album: Baile da Tribo
  type: MusicAlbum
  date published: 2024-07-19
  track: Baile da Tribo
    type: MusicRecording
    duration: PT2M1S
    duration ms: 121874
    explicit: true
    by artist: Mc Duna
    in album: Baile da Tribo
      type: MusicAlbum
      date published: 2024-07-19
    isrc code: BK1P72400074
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T02:05:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2824ec56ce11ee789ca5489ba14d6db465d860d866ff10cfb8aa0ddb864f1708
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK1P72400074
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x2824ec56ce11ee789ca5489ba14d6db465d860d866ff10cfb8aa0ddb864f1708. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BK1P72400074.
      date published: 2026-07-03T08:56:35Z
    audio: Baile da Tribo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.966
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.932
      additional property: Energy
        type: PropertyValue
        value: 0.631
      additional property: Speechiness
        type: PropertyValue
        value: 0.24
      additional property: Acousticness
        type: PropertyValue
        value: 0.24
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.474
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.902
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: No Love
  type: MusicAlbum
  date published: 2025-02-28
album: Vem na Fonte
  type: MusicAlbum
  date published: 2025-07-25