Jua Cali
type: MusicGroup
genre: bongo flava
genre: gengetone
description: Paul Julius Nunda (born 12 September 1979), better known by his stage name Jua Cali, is a Kenyan rapper and record producer. In 2000, together with record producer Clemo, he founded Calif Records wher
popularity: 26
followers: 16559
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xc5bf92265cfa4a269df9c8ded4eb51ba77ebce28a71b895e98649f367ca50dbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05697e3f-2f75-45f0-943d-d829b8164da4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/05697e3f-2f75-45f0-943d-d829b8164da4.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/05697e3f-2f75-45f0-943d-d829b8164da4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc5bf92265cfa4a269df9c8ded4eb51ba77ebce28a71b895e98649f367ca50dbe","name":"Jua Cali","registered_at":"2026-06-11T11:04:58Z","symbol":"NIM0008232","token_address":"0x0dd87653b1fc5eaac0c2901195ccc8c2201710bc","type":"artist","uuid":"05697e3f-2f75-45f0-943d-d829b8164da4"}
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 0xc5bf92265cfa4a269df9c8ded4eb51ba77ebce28a71b895e98649f367ca50dbe. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05697e3f-2f75-45f0-943d-d829b8164da4.json and https://artists.proofprofile.net/proofs/artist/05697e3f-2f75-45f0-943d-d829b8164da4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc5bf92265cfa4a269df9c8ded4eb51ba77ebce28a71b895e98649f367ca50dbe","name":"Jua Cali","registered_at":"2026-06-11T11:04:58Z","symbol":"NIM0008232","token_address":"0x0dd87653b1fc5eaac0c2901195ccc8c2201710bc","type":"artist","uuid":"05697e3f-2f75-45f0-943d-d829b8164da4"}
album: JuaCaliSekta
  type: MusicAlbum
  date published: 2007
  track: KAMATA DAME
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236058
    explicit: false
    by artist: Jua Cali
    in album: JuaCaliSekta
      type: MusicAlbum
      date published: 2007
    genre: bongo flava
    genre: gengetone
    isrc code: QZTLA2415240
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      value: 958122
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTLA2415240
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T10:59:13Z
    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 0x2cd796e0ba9b00b2382d807b81466257dc901d674f926fe0f592e1f3cbf1549e. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:13Z), 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/QZTLA2415240.
      date published: 2026-07-15T10:59:13Z
    audio: KAMATA DAME
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.183
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.746
      additional property: Energy
        type: PropertyValue
        value: 0.72
      additional property: Speechiness
        type: PropertyValue
        value: 0.205
      additional property: Acousticness
        type: PropertyValue
        value: 0.097
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.863
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.774
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tugenge Yajayo
  type: MusicAlbum
  date published: 2015-08-11
album: Tugenge Yajayo
  type: MusicAlbum
  date published: 2015-08-11
album: Tugenge Yajayo
  type: MusicAlbum
  date published: 2015-08-11
album: Ngeli Ya Genge
  type: MusicAlbum
  date published: 2015-08-13
album: Ngeli Ya Genge
  type: MusicAlbum
  date published: 2015-08-13
album: Ngeli Ya Genge
  type: MusicAlbum
  date published: 2015-08-13
album: Ngeli Ya Genge
  type: MusicAlbum
  date published: 2015-08-13
album: MALI YA UMMA
  type: MusicAlbum
  date published: 2019
  track: KARIBU NAIROBI
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207058
    explicit: false
    by artist: Jua Cali
    in album: MALI YA UMMA
      type: MusicAlbum
      date published: 2019
    genre: bongo flava
    genre: gengetone
    isrc code: QZS7J2304790
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T00:31:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa449c37c8073f0c3abf8c91b0dea48f467255c644bcb4e73c5e506f5cebeae1f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958473
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS7J2304790
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T00:52:36Z
    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 0xa449c37c8073f0c3abf8c91b0dea48f467255c644bcb4e73c5e506f5cebeae1f. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZS7J2304790.
      date published: 2026-07-18T00:52:36Z
    audio: KARIBU NAIROBI
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.966
      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: Baila Baila
album: Sekta
album: Mali Ya Umma
album: PANDA SHUKA
album: Utu Uzima
album: UTU UZIMA
album: NASKIA RAHA
album: ME NA WEWE
track: Prime Time

Musical Key
type: PropertyValue
value: 11

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.681

Energy
type: PropertyValue
value: 0.929

Speechiness
type: PropertyValue
value: 0.417

Acousticness
type: PropertyValue
value: 0.295

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.443

Valence (Positivity)
type: PropertyValue
value: 0.869

Loudness (dB)
type: PropertyValue
value: -4.331

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Baila Baila
type: MusicAlbum
date published: 2019-04-16

Sekta
type: MusicAlbum
date published: 2019-07-26

Mali Ya Umma
type: MusicAlbum
date published: 2019-09-12

PANDA SHUKA
type: MusicAlbum
date published: 2020

Utu Uzima
type: MusicAlbum
date published: 2023-03-24

UTU UZIMA
type: MusicAlbum
date published: 2023-10-20

NASKIA RAHA
type: MusicAlbum
date published: 2024-05-08

ME NA WEWE
type: MusicAlbum
date published: 2024-09-27

Prime Time
type: MusicRecording
duration: PT4M1S
duration ms: 241789
explicit: false
by artist: Kaa La Moto
by artist: Jua Cali
by artist: Nikki Mbishi
in album: Mkanda Mweusi
  type: MusicAlbum
  date published: 2022-12-20
isrc code: TCAGR2257051
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T05:48:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9917a626c7a6b863625b794f55de07d166a6dabc000e31d80d005d453f5cf9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGR2257051
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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 0xc9917a626c7a6b863625b794f55de07d166a6dabc000e31d80d005d453f5cf9f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TCAGR2257051.
  date published: 2026-07-02T03:55:08Z
audio: Prime Time
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 107.156
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.732
  additional property: Energy
    type: PropertyValue
    value: 0.702
  additional property: Speechiness
    type: PropertyValue
    value: 0.414
  additional property: Acousticness
    type: PropertyValue
    value: 0.283
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.541
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.82
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor