Cheb Kamal El Oujdi
type: MusicGroup
genre: moroccan rap
genre: raï
popularity: 4
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9231a054e29c3573fa7357a4ba05ebbc18643cbe21a34e45bfa17260603de035
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95f07a3d-c75a-491d-adda-f23c73494419.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95f07a3d-c75a-491d-adda-f23c73494419.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95f07a3d-c75a-491d-adda-f23c73494419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9231a054e29c3573fa7357a4ba05ebbc18643cbe21a34e45bfa17260603de035","name":"Cheb Kamal El Oujdi","registered_at":"2026-06-17T18:00:17Z","symbol":"NIM1474715","token_address":"0x5a577bda2249fc5b4c813e1e6bb722eb91f32049","type":"artist","uuid":"95f07a3d-c75a-491d-adda-f23c73494419"}
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 0x9231a054e29c3573fa7357a4ba05ebbc18643cbe21a34e45bfa17260603de035. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95f07a3d-c75a-491d-adda-f23c73494419.json and https://artists.proofprofile.net/proofs/artist/95f07a3d-c75a-491d-adda-f23c73494419.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x9231a054e29c3573fa7357a4ba05ebbc18643cbe21a34e45bfa17260603de035","name":"Cheb Kamal El Oujdi","registered_at":"2026-06-17T18:00:17Z","symbol":"NIM1474715","token_address":"0x5a577bda2249fc5b4c813e1e6bb722eb91f32049","type":"artist","uuid":"95f07a3d-c75a-491d-adda-f23c73494419"}
album: Skini Li Liha Liha
  type: MusicAlbum
  date published: 2023-10-29
album: Matsalonich Ila Bghitha
  type: MusicAlbum
  date published: 2023-12-01
album: Nssa Lahmoum
  type: MusicAlbum
  date published: 2024-05-04
  track: Nssa Lahmoum
    type: MusicRecording
    duration: PT7M14S
    duration ms: 434051
    explicit: false
    by artist: Cheb Kamal El Oujdi
    in album: Nssa Lahmoum
      type: MusicAlbum
      date published: 2024-05-04
    genre: moroccan rap
    genre: raï
    isrc code: ING212475691
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:20:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19200457daa999b892b09dbb17bec561e0c07b72307c4fcabd0868d3c077bc5f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ING212475691
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0x19200457daa999b892b09dbb17bec561e0c07b72307c4fcabd0868d3c077bc5f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ING212475691.
      date published: 2026-07-05T01:43:49Z
    audio: Nssa Lahmoum
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.999
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.685
      additional property: Energy
        type: PropertyValue
        value: 0.93
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.149
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.095
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.797
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.775
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Kan Moktab Aalina
  type: MusicAlbum
  date published: 2024-05-22
album: Best of
  type: MusicAlbum
  date published: 2025-04-02