Nas black
type: MusicGroup
popularity: 20
followers: 792
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x448d403715ecefcb1a2df8e65e3c389ef72fd66705bf282522aa35d492195285
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953727
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953727
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92a2f051-9b47-4139-9de2-c28ee838a7d9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92a2f051-9b47-4139-9de2-c28ee838a7d9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/92a2f051-9b47-4139-9de2-c28ee838a7d9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T02:33:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x448d403715ecefcb1a2df8e65e3c389ef72fd66705bf282522aa35d492195285","name":"Nas black","registered_at":"2026-06-14T19:53:45Z","symbol":"NIM0559204","token_address":"0xbd85ed988b6979ab86260b87c11534a72581f7c5","type":"artist","uuid":"92a2f051-9b47-4139-9de2-c28ee838a7d9"}
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 0x448d403715ecefcb1a2df8e65e3c389ef72fd66705bf282522aa35d492195285. 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/92a2f051-9b47-4139-9de2-c28ee838a7d9.json and https://artists.proofprofile.net/proofs/artist/92a2f051-9b47-4139-9de2-c28ee838a7d9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x448d403715ecefcb1a2df8e65e3c389ef72fd66705bf282522aa35d492195285","name":"Nas black","registered_at":"2026-06-14T19:53:45Z","symbol":"NIM0559204","token_address":"0xbd85ed988b6979ab86260b87c11534a72581f7c5","type":"artist","uuid":"92a2f051-9b47-4139-9de2-c28ee838a7d9"}
album: Ladilafé
  type: MusicAlbum
  date published: 2023-03-10
album: Karma
  type: MusicAlbum
  date published: 2023-09-11
album: I fo mi trace
  type: MusicAlbum
  date published: 2024-01-03
album: Na loué
  type: MusicAlbum
  date published: 2024-04-19
album: DENT BLANC KER NOIR
  type: MusicAlbum
  date published: 2024-11-01
album: Démuni
  type: MusicAlbum
  date published: 2024-12-23
  track: Démuni
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206113
    explicit: false
    by artist: Nas black
    in album: Démuni
      type: MusicAlbum
      date published: 2024-12-23
    isrc code: QT3EZ2429788
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:25:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x017c279cd8810f81f4cd3594e09b29ee6ad4e537756c65f93924aab4db135b4f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EZ2429788
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x017c279cd8810f81f4cd3594e09b29ee6ad4e537756c65f93924aab4db135b4f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QT3EZ2429788.
      date published: 2026-07-05T19:27:56Z
    audio: Démuni
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.952
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.913
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.075
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.166
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.813
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.753
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Désobeissance
  type: MusicAlbum
  date published: 2025-01-10
album: Marie jeane
  type: MusicAlbum
  date published: 2025-03-23
album: HARMONIE
  type: MusicAlbum
  date published: 2025-06-21