KLARK
type: MusicGroup
popularity: 4
followers: 447
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa98be835cb39269f0f5cc05e1d8ad2c1b22b76f0adfdae7dfe7bf9849d03351a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45c7706a-a43b-4484-89e0-94298b24cfac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45c7706a-a43b-4484-89e0-94298b24cfac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45c7706a-a43b-4484-89e0-94298b24cfac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
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 0xa98be835cb39269f0f5cc05e1d8ad2c1b22b76f0adfdae7dfe7bf9849d03351a. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45c7706a-a43b-4484-89e0-94298b24cfac.json and https://artists.proofprofile.net/proofs/artist/45c7706a-a43b-4484-89e0-94298b24cfac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
album: Prince of the Ocean
  type: MusicAlbum
  date published: 2015-01-01
album: KLARK
  type: MusicAlbum
  date published: 2015-01-01
album: 88
  type: MusicAlbum
  date published: 2018-03-10
album: YELLOWJOY
  type: MusicAlbum
  date published: 2020-03-26
album: HOLDING MY BREATH
  type: MusicAlbum
  date published: 2020-08-27
album: HONEY
  type: MusicAlbum
  date published: 2020-09-17
album: Voodoo
  type: MusicAlbum
  date published: 2021-06-15
album: Boy
  type: MusicAlbum
  date published: 2021-08-12
album: Simple
  type: MusicAlbum
  date published: 2021-09-30
  track: Simple
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205812
    explicit: false
    by artist: KLARK
    in album: Simple
      type: MusicAlbum
      date published: 2021-09-30
    isrc code: QZK6H2179454
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:48:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b88199c6abe52ffab4418bf8778ce5bcb5f050a0c234b68e1ec0067007c3050
    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/QZK6H2179454
    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 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 0x3b88199c6abe52ffab4418bf8778ce5bcb5f050a0c234b68e1ec0067007c3050. 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/QZK6H2179454.
      date published: 2026-07-05T01:12:41Z
    audio: Simple
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.015
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.596
      additional property: Energy
        type: PropertyValue
        value: 0.76
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.012
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.509
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.298
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: New Air
  type: MusicAlbum
  date published: 2022-01-21
album: Coffee
  type: MusicAlbum
  date published: 2022-07-01
album: Dance in the Dark
  type: MusicAlbum
  date published: 2023-02-03
album: La La Lonely
  type: MusicAlbum
  date published: 2023-07-21
album: Lychee Martini
  type: MusicAlbum
  date published: 2024-08-08
album: Heartbreaker
  type: MusicAlbum
  date published: 2024-10-04
album: OMW
  type: MusicAlbum
  date published: 2025-07-04