Noura Hassan
type: MusicGroup
genre: raï
popularity: 3
followers: 95
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xceaec146529968695a27afd63c9ac59ec913590e003ff606e0efdfe866e57e47
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef3d44e1-d883-41a7-89d9-3c15e74b3a76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef3d44e1-d883-41a7-89d9-3c15e74b3a76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef3d44e1-d883-41a7-89d9-3c15e74b3a76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xceaec146529968695a27afd63c9ac59ec913590e003ff606e0efdfe866e57e47","name":"Noura Hassan","registered_at":"2026-06-21T12:16:02Z","symbol":"NIM1920623","token_address":"0x3d032f2bd7e0dd231e9ace20c2bbda4b03c415bb","type":"artist","uuid":"ef3d44e1-d883-41a7-89d9-3c15e74b3a76"}
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 0xceaec146529968695a27afd63c9ac59ec913590e003ff606e0efdfe866e57e47. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef3d44e1-d883-41a7-89d9-3c15e74b3a76.json and https://artists.proofprofile.net/proofs/artist/ef3d44e1-d883-41a7-89d9-3c15e74b3a76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0xceaec146529968695a27afd63c9ac59ec913590e003ff606e0efdfe866e57e47","name":"Noura Hassan","registered_at":"2026-06-21T12:16:02Z","symbol":"NIM1920623","token_address":"0x3d032f2bd7e0dd231e9ace20c2bbda4b03c415bb","type":"artist","uuid":"ef3d44e1-d883-41a7-89d9-3c15e74b3a76"}
album: Darba
  type: MusicAlbum
  date published: 2020-07-15
album: Mali Yarbi Mali
  type: MusicAlbum
  date published: 2020-09-30
  track: Mali Yarbi Mali
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180593
    explicit: false
    by artist: Noura Hassan
    in album: Mali Yarbi Mali
      type: MusicAlbum
      date published: 2020-09-30
    genre: raï
    isrc code: USL4Q2079346
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T17:31:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02e9231c007e974e688262b5c315a662221edc8cefa4f893f3ff6dc4c4d5abfc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2079346
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x02e9231c007e974e688262b5c315a662221edc8cefa4f893f3ff6dc4c4d5abfc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2079346.
      date published: 2026-07-05T01:12:41Z
    audio: Mali Yarbi Mali
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.973
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.726
      additional property: Energy
        type: PropertyValue
        value: 0.758
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.704
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.15
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Por Favor
  type: MusicAlbum
  date published: 2021-03-01