Lazaka
type: MusicGroup
genre: arabic hip hop
popularity: 4
followers: 653
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a1dc30d5a97779d1e6564f96627cc2d6114f8508fb4bbc768e358186ba589ff
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/f72a2d0f-2e43-4816-9951-a3c5fd7eb480.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f72a2d0f-2e43-4816-9951-a3c5fd7eb480.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f72a2d0f-2e43-4816-9951-a3c5fd7eb480
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 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 0x1a1dc30d5a97779d1e6564f96627cc2d6114f8508fb4bbc768e358186ba589ff. 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/f72a2d0f-2e43-4816-9951-a3c5fd7eb480.json and https://artists.proofprofile.net/proofs/artist/f72a2d0f-2e43-4816-9951-a3c5fd7eb480.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Ta3mel Mzeya
  type: MusicAlbum
  date published: 2021-02-16
album: Famiglia
  type: MusicAlbum
  date published: 2023-09-11
album: La vie
  type: MusicAlbum
  date published: 2023-09-11
album: Ta3mel Mzeya
  type: MusicAlbum
  date published: 2023-09-11
  track: Ta3mel Mzeya
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182674
    explicit: true
    by artist: Lazaka
    in album: Ta3mel Mzeya
      type: MusicAlbum
      date published: 2023-09-11
    genre: arabic hip hop
    isrc code: QZTAX2386589
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:31:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x69d91ae9ea9800801b36b7a5dfebce3f77ad26e35bfe85da05114022cfb95b54
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAX2386589
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0x69d91ae9ea9800801b36b7a5dfebce3f77ad26e35bfe85da05114022cfb95b54. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZTAX2386589.
      date published: 2026-07-22T07:19:23Z
    audio: Ta3mel Mzeya
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.732
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.665
      additional property: Energy
        type: PropertyValue
        value: 0.505
      additional property: Speechiness
        type: PropertyValue
        value: 0.26
      additional property: Acousticness
        type: PropertyValue
        value: 0.303
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.317
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.927
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Démarré
  type: MusicAlbum
  date published: 2023-09-11
album: Casablanca
  type: MusicAlbum
  date published: 2023-09-12
album: Bel3ino
  type: MusicAlbum
  date published: 2023-09-12
album: Allo baby
  type: MusicAlbum
  date published: 2023-09-12
album: Denya Edour
  type: MusicAlbum
  date published: 2023-09-12
album: Vroum Vroum
  type: MusicAlbum
  date published: 2023-09-12
album: Taw tet7arek
  type: MusicAlbum
  date published: 2023-09-12
album: T7eb Trani
  type: MusicAlbum
  date published: 2023-09-12
  track: T7eb Trani
    type: MusicRecording
    duration: PT3M18S
    duration ms: 198347
    explicit: true
    by artist: Lazaka
    in album: T7eb Trani
      type: MusicAlbum
      date published: 2023-09-12
    genre: arabic hip hop
    isrc code: QZTAY2302901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T22:58:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb8da3c8591e9591fd55225bd98c5fcf9459f8a5fbcc65548fabf9885ae6302ae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAY2302901
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xb8da3c8591e9591fd55225bd98c5fcf9459f8a5fbcc65548fabf9885ae6302ae. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZTAY2302901.
      date published: 2026-07-06T01:25:57Z
    audio: T7eb Trani
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.996
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Lil Twil
album: Alf Hkeya
album: Ka3btin o Ka3ba
album: Zina
album: Mazara
album: Grazie

Musical Key
type: PropertyValue
value: 8

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 3

Danceability
type: PropertyValue
value: 0.797

Energy
type: PropertyValue
value: 0.489

Speechiness
type: PropertyValue
value: 0.122

Acousticness
type: PropertyValue
value: 0.502

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.195

Valence (Positivity)
type: PropertyValue
value: 0.342

Loudness (dB)
type: PropertyValue
value: -5.55

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Lil Twil
type: MusicAlbum
date published: 2023-09-12

Alf Hkeya
type: MusicAlbum
date published: 2023-09-13

Ka3btin o Ka3ba
type: MusicAlbum
date published: 2023-09-13

Zina
type: MusicAlbum
date published: 2023-09-14

Mazara
type: MusicAlbum
date published: 2024-04-18

Grazie
type: MusicAlbum
date published: 2024-05-16