MC CZA
type: MusicGroup
popularity: 19
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e81699db5524431ff162db56f43632c24ee084dfd31db378eaac71f1d4634dc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e81699db5524431ff162db56f43632c24ee084dfd31db378eaac71f1d4634dc","name":"MC CZA","registered_at":"2026-06-14T18:06:46Z","symbol":"NIM0533714","token_address":"0xaffaa78c170f957ff0f3786f06454ea03372ac80","type":"artist","uuid":"81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb"}
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 0x5e81699db5524431ff162db56f43632c24ee084dfd31db378eaac71f1d4634dc. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb.json and https://artists.proofprofile.net/proofs/artist/81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x5e81699db5524431ff162db56f43632c24ee084dfd31db378eaac71f1d4634dc","name":"MC CZA","registered_at":"2026-06-14T18:06:46Z","symbol":"NIM0533714","token_address":"0xaffaa78c170f957ff0f3786f06454ea03372ac80","type":"artist","uuid":"81f86b3d-7ab5-4528-91f6-c21ac8a6e6fb"}
album: Neurose da Madrugada
  type: MusicAlbum
  date published: 2023-09-12
album: Sacar o torpedo
  type: MusicAlbum
  date published: 2025-07-17
  track: Sacar o torpedo
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144015
    explicit: false
    by artist: MC CZA
    in album: Sacar o torpedo
      type: MusicAlbum
      date published: 2025-07-17
    isrc code: GXBAV2076923
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:27:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x24dd4f33529d7617e4c6818aea97693282baf395cd3d692c7c7b8ace0e19eae3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958166
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958166
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXBAV2076923
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:30:08Z
    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 0x24dd4f33529d7617e4c6818aea97693282baf395cd3d692c7c7b8ace0e19eae3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:08Z), 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/GXBAV2076923.
      date published: 2026-07-15T16:30:08Z
    audio: Sacar o torpedo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.649
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.754
      additional property: Energy
        type: PropertyValue
        value: 0.392
      additional property: Speechiness
        type: PropertyValue
        value: 0.515
      additional property: Acousticness
        type: PropertyValue
        value: 0.167
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.545
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.625
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor