k'
type: MusicGroup
genre: vocaloid
description: is a character from The King of Fighters fighting game series developed by SNK. He debuted as the leader of the Hero Team in The King of Fighters '99, released in 1999. He often stars as the reluctan
popularity: 7
followers: 1361
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ea2893ff5b1385258f62fa7c58ee83651aa6edb8f1e2ed366562e5ccb38d57. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/956df32a-4680-4124-9063-4e084173ebfb.json and https://artists.proofprofile.net/proofs/artist/956df32a-4680-4124-9063-4e084173ebfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Life is musical
  type: MusicAlbum
  date published: 2015-08-21
album: サンセットマーチ ver.2016
  type: MusicAlbum
  date published: 2016-10-26
album: frost
  type: MusicAlbum
  date published: 2016-10-26
album: 水彩メリーゴーランド
  type: MusicAlbum
  date published: 2018-02-07
album: アイカギ
  type: MusicAlbum
  date published: 2018-02-07
album: テンキアメ
  type: MusicAlbum
  date published: 2020-03-25
track: シャーベットルクリア (feat. 初音ミク)
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221000
  explicit: false
  by artist: k'
  by artist: Hatsune Miku
  in album: White Luminescence
    type: MusicAlbum
    date published: 2023-02-01
  popularity: 2
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  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 0xbed904e53c2033f45a0f47b5a3db2c52dd1486a5f77860dfdee1fe6d7708d290. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JP92Q2301031.
    date published: 2026-07-08T03:20:19Z
  audio: シャーベットルクリア (feat. 初音ミク)
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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