JK
type: MusicGroup
genre: brazilian trap
description: JK may refer to: People Jay Kay (Jason Luís Cheetham, born 1969), English musician and lead singer of Jamiroquai Jaykae (Janum Khan, born 1991), English rapper and actor JK-47 (Jacob Paulson, born 19
popularity: 13
followers: 212
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08f069ab697d34f1155e6821ceb792a1d5b5964c3428c2944e08fb57b4185e95
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dca8ebf-6e13-4f55-8524-c8f9689f1921.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3dca8ebf-6e13-4f55-8524-c8f9689f1921.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3dca8ebf-6e13-4f55-8524-c8f9689f1921
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
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 0x08f069ab697d34f1155e6821ceb792a1d5b5964c3428c2944e08fb57b4185e95. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dca8ebf-6e13-4f55-8524-c8f9689f1921.json and https://artists.proofprofile.net/proofs/artist/3dca8ebf-6e13-4f55-8524-c8f9689f1921.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T14:31:42Z
album: Royal Salute
  type: MusicAlbum
  date published: 2020-09-06
album: Maciço
  type: MusicAlbum
  date published: 2020-10-23
album: Bela Moça
  type: MusicAlbum
  date published: 2021-07-29
album: Preto Posturado
  type: MusicAlbum
  date published: 2021-11-23
album: Jóias no Corpo
  type: MusicAlbum
  date published: 2022-03-03
album: Preto Chefe
  type: MusicAlbum
  date published: 2022-08-27
album: Puto Romântico
  type: MusicAlbum
  date published: 2022-11-23
album: Eu Te Conheço
  type: MusicAlbum
  date published: 2023-05-11
album: Vícios
  type: MusicAlbum
  date published: 2024-01-22
album: Dia de Baile
  type: MusicAlbum
  date published: 2024-03-10
album: ANTES QUE AMANHEÇA
  type: MusicAlbum
  date published: 2024-04-19
album: Metamorfose
  type: MusicAlbum
  date published: 2024-09-17
album: Metamorfose
  type: MusicAlbum
  date published: 2024-09-17
album: Meu Último Ano
  type: MusicAlbum
  date published: 2024-11-26
  track: Meu Último Ano
    type: MusicRecording
    duration: PT2M5S
    duration ms: 125740
    explicit: true
    by artist: JK
    in album: Meu Último Ano
      type: MusicAlbum
      date published: 2024-11-26
    genre: brazilian trap
    isrc code: BKV6C2400012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T08:15:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7d1bab6eaaf1bd721f3e41f56081c8e6017a3ed7c99b919e044135c05075f446
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKV6C2400012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x7d1bab6eaaf1bd721f3e41f56081c8e6017a3ed7c99b919e044135c05075f446. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BKV6C2400012.
      date published: 2026-07-03T08:56:35Z
    audio: Meu Último Ano
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 112.488
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.78
      additional property: Energy
        type: PropertyValue
        value: 0.538
      additional property: Speechiness
        type: PropertyValue
        value: 0.101
      additional property: Acousticness
        type: PropertyValue
        value: 0.555
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.205
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.777
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: O Telefone Tocou
  type: MusicAlbum
  date published: 2025-01-28
album: RIMAS QUE EU TENHO NA GAVETA
  type: MusicAlbum
  date published: 2025-09-18
  track: PELE DE PROMESSA
    type: MusicRecording
    duration: PT3M0S
    duration ms: 180124
    explicit: true
    by artist: JK
    in album: RIMAS QUE EU TENHO NA GAVETA
      type: MusicAlbum
      date published: 2025-09-18
    genre: brazilian trap
    isrc code: BKV6C2500003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T22:35:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7f223c39ebc37d6fadfda213fffb838b5723d7cc6bd78644ab01c5ed1a32d162
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958792
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958792
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKV6C2500003
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: PELE DE PROMESSA

OTSTimestamp
type: PropertyValue
value: 2026-07-19T22:55:52Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f223c39ebc37d6fadfda213fffb838b5723d7cc6bd78644ab01c5ed1a32d162. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/BKV6C2500003.
date published: 2026-07-19T22:55:52Z

PELE DE PROMESSA
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 80.009
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.793
additional property: Energy
  type: PropertyValue
  value: 0.446
additional property: Speechiness
  type: PropertyValue
  value: 0.27
additional property: Acousticness
  type: PropertyValue
  value: 0.212
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.117
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.745
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.807
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major