Katchou
type: MusicGroup
genre: raï
description: Katchou (real name Ali Nasri) was an Algerian singer, born on April 15, 1963, in Batna. Career He sang in Chaoui. He has published at least eight albums, and the following are regarded as the most we
popularity: 6
followers: 2116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x1584b3a5a72cc34c3ecc9aadbebc305a2a774795ffcda4fd2e6c3d0960fd9f66
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4e7ab1d-4155-41c4-bec2-13d56bdba520.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x1584b3a5a72cc34c3ecc9aadbebc305a2a774795ffcda4fd2e6c3d0960fd9f66. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4e7ab1d-4155-41c4-bec2-13d56bdba520.json and https://artists.proofprofile.net/proofs/artist/f4e7ab1d-4155-41c4-bec2-13d56bdba520.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Abrid ennam i behda
  type: MusicAlbum
  date published: 1978
album: Yellis N Awras
  type: MusicAlbum
  date published: 1984
album: Arabi ya arabi
  type: MusicAlbum
  date published: 1986
album: Yellis N ichawiyen
  type: MusicAlbum
  date published: 1989
album: بدات يودان
  type: MusicAlbum
  date published: 1992-03-29
album: Cem Henana
  type: MusicAlbum
  date published: 1995-09-13
album: Yellis N-wedrara
  type: MusicAlbum
  date published: 1995-10-17
album: Ahna Chaouia
  type: MusicAlbum
  date published: 1995-10-19
  track: Ahna Chaouia
    type: MusicRecording
    duration: PT5M25S
    duration ms: 325420
    explicit: false
    by artist: Katchou
    in album: Ahna Chaouia
      type: MusicAlbum
      date published: 1995-10-19
    genre: raï
    isrc code: DGA072384348
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T01:37:38+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958805
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA072384348
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:22:58Z
    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 0x678ca472dfee5f03417ba6fc04c94e41d829e7a2ee01f72261a9e5428ae0289e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DGA072384348.
      date published: 2026-07-20T02:22:58Z
    audio: Ahna Chaouia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 178.217
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.315
      additional property: Energy
        type: PropertyValue
        value: 0.872
      additional property: Speechiness
        type: PropertyValue
        value: 0.084
      additional property: Acousticness
        type: PropertyValue
        value: 0.292
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.274
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.6
      additional property: Loudness (dB)
        type: PropertyValue
        value: -0.53
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: البابور اروح
  type: MusicAlbum
  date published: 1996-12-03
album: B'nate houa
  type: MusicAlbum
  date published: 2000-01-01
album: Aqel Aqel
  type: MusicAlbum
  date published: 2000-06-15
album: Hami-Hami
  type: MusicAlbum
  date published: 2000-11-04
album: Bab El Khir
  type: MusicAlbum
  date published: 2001-09-25
album: Demi demi
  type: MusicAlbum
  date published: 2009-01-01
album: Alache alik ya omri
  type: MusicAlbum
  date published: 2010-01-01
album: Ghorba Yal Ghorba
  type: MusicAlbum
  date published: 2018-09-28
album: Ma Tabkesh Ya Gamila
  type: MusicAlbum
  date published: 2025-01-19