K
type: MusicGroup
genre: breakbeat
genre: jungle
description: K, or k, is the eleventh letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is kay (pronounc
popularity: 3
followers: 91
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4af0348f29d43545387f072cb8da0b6534ceb98060d9ee4be0cf6da40d322085
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c04b364f-93e4-4eb4-9bab-d9e7001af4dc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c04b364f-93e4-4eb4-9bab-d9e7001af4dc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c04b364f-93e4-4eb4-9bab-d9e7001af4dc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
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 0x4af0348f29d43545387f072cb8da0b6534ceb98060d9ee4be0cf6da40d322085. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c04b364f-93e4-4eb4-9bab-d9e7001af4dc.json and https://artists.proofprofile.net/proofs/artist/c04b364f-93e4-4eb4-9bab-d9e7001af4dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
album: Bad Dreams / Nightstalker
  type: MusicAlbum
  date published: 1998-11-30
album: Destination Unknown / Third I
  type: MusicAlbum
  date published: 1999-04-12
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  type: MusicAlbum
  date published: 1999-06-28
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  type: MusicAlbum
  date published: 2018-03-02
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  type: MusicAlbum
  date published: 2020-04-01
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  type: MusicAlbum
  date published: 2020-12-01
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  type: MusicAlbum
  date published: 2021-01-11
album: Trái Tim Không Vâng Lời (feat. Zent)
  type: MusicAlbum
  date published: 2021-04-21
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2021-05-15
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  type: MusicAlbum
  date published: 2022-07-01
album: 霞光
  type: MusicAlbum
  date published: 2024-03-16
album: 雨天
  type: MusicAlbum
  date published: 2024-03-23
album: 雨天
  type: MusicAlbum
  date published: 2024-03-24
album: 别离
  type: MusicAlbum
  date published: 2024-03-31
album: 家，朋友，他
  type: MusicAlbum
  date published: 2024-06-04
album: 吻
  type: MusicAlbum
  date published: 2024-08-05
album: 海上云烟
  type: MusicAlbum
  date published: 2024-08-06
track: 素顔のままで
  type: MusicRecording
  duration: PT4M56S
  duration ms: 296160
  explicit: false
  by artist: ET-KING
  by artist: K
  in album: 恋愛歌集
    type: MusicAlbum
    date published: 2010-01-01
  genre: j-pop
  isrc code: JPPO21005270
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T09:39:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5a4052ec9f075baa61701da8f98b1bc040ff5c92dfdcbe180963f520c9636122
  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/JPPO21005270
  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 0x5a4052ec9f075baa61701da8f98b1bc040ff5c92dfdcbe180963f520c9636122. 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/JPPO21005270.
    date published: 2026-07-02T03:55:08Z
  audio: 素顔のままで
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.039
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.659
    additional property: Energy
      type: PropertyValue
      value: 0.822
    additional property: Speechiness
      type: PropertyValue
      value: 0.045
    additional property: Acousticness
      type: PropertyValue
      value: 0.246
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.07
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.588
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.738
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major