halca
type: MusicGroup
genre: anime
genre: j-pop
popularity: 40
followers: 49281
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xb36bf17bacbd65042eedd2aaca304a13d7aa589edfcec88533514b0cd04250b8
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ffe2bd63-4971-4d13-b5c7-cb001f1392ef.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ffe2bd63-4971-4d13-b5c7-cb001f1392ef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 → block must exist at that height 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb36bf17bacbd65042eedd2aaca304a13d7aa589edfcec88533514b0cd04250b8. 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/ffe2bd63-4971-4d13-b5c7-cb001f1392ef.json and https://artists.proofprofile.net/proofs/artist/ffe2bd63-4971-4d13-b5c7-cb001f1392ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: White Disc +++
  type: MusicAlbum
  date published: 1970-01-01
  track: Distortionary
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241173
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: 君だけ
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202613
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: Hail to the world!!
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233893
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: 朽葉色の音
    type: MusicRecording
    duration: PT4M5S
    duration ms: 245653
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: キミの空
    type: MusicRecording
    duration: PT4M29S
    duration ms: 269253
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: 曖昧グラデーション
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    duration: PT4M13S
    duration ms: 253413
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
  track: GOING CRAZY NIGHT
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    duration: PT5M12S
    duration ms: 312800
    explicit: false
    by artist: halca
    in album: White Disc +++
      type: MusicAlbum
      date published: 1970-01-01
album: Assortrip
  type: MusicAlbum
  date published: 1970-01-01
  track: キミの隣
    type: MusicRecording
    duration: PT4M39S
    duration ms: 279133
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: one another
    type: MusicRecording
    duration: PT3M49S
    duration ms: 229760
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: うそじゃないよ
    type: MusicRecording
    duration: PT4M4S
    duration ms: 244240
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: 放課後のリバティ
    type: MusicRecording
    duration: PT3M50S
    duration ms: 230480
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: be your XXX
    type: MusicRecording
    duration: PT3M10S
    duration ms: 190826
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    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: あの頃の僕たちを
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    duration: PT4M45S
    duration ms: 285160
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: HORiZON
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237280
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: サカナイトデイズ
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    duration: PT4M31S
    duration ms: 271266
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: Ride on Music!
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247240
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: スターティングブルー
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    duration: PT3M48S
    duration ms: 228986
    explicit: false
    by artist: halca
    in album: Assortrip
      type: MusicAlbum
      date published: 1970-01-01
  track: ハローセカイ
    type: MusicRecording
    duration: PT4M27S
    duration ms: 267106
    explicit: false
    by artist: halca
    in album: Assortrip
  track: センチメンタルクライシス
  track: サワリタイミライ
album: Kimi No Tonari
album: キミの隣
album: スターティングブルー
album: つぶやきレター
album: センチメンタルクライシス
album: Sentimental Crisis
album: white disc +++
album: Houkagono Liberty
album: 放課後のリバティ
album: 時としてバイオレンス
album: Tokitoshite Violence
album: FIRST DROP
album: 告白バンジージャンプ
album: キミがいたしるし
album: もういいや。
album: キミがいたしるし (James Landino Remix) - SACRA BEATS Singles
album: 誰彼スクランブル
album: あれこれドラスティック
album: 誰彼スクランブル / あれこれドラスティック (Complete Edition)
album: ロマンティックマニフェスト
album: nolca solca
album: 恋愛ミリフィルム
album: 恋愛ミリフィルム (Complete Edition)
album: Good Luck Waker
album: halca first tour 2023 “nolca solca culca” Live ＠Spotify O-WEST
album: Good Luck Waker (Complete Edition)
album: 瞬間最大風速
album: 瞬間最大風速 (Complete Edition)
album: ウィークエンドロール
track: キミの隣（BIBLE version） - Mixed
track: キミがいたしるし（BIBLE version） - Mixed
track: センチメンタルクライシス（BIBLE version） - Mixed
track: キミがいたしるし (James Landino Remix) - SACRA BEATS Singles
track: I feel you

Assortrip
type: MusicAlbum
date published: 1970-01-01

センチメンタルクライシス
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explicit: false
by artist: halca
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  type: MusicAlbum
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サワリタイミライ
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duration: PT4M23S
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explicit: false
by artist: halca
in album: Assortrip
  type: MusicAlbum
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Assortrip
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track: キミの隣
  type: MusicRecording
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track: one another
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track: うそじゃないよ
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track: 放課後のリバティ
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  duration ms: 230480
  explicit: false
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  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: be your XXX
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190826
  explicit: false
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  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: あの頃の僕たちを
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285160
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: HORiZON
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237280
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: サカナイトデイズ
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271266
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: Ride on Music!
  type: MusicRecording
  duration: PT4M7S
  duration ms: 247240
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: スターティングブルー
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228986
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: ハローセカイ
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267106
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: センチメンタルクライシス
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243960
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: サワリタイミライ
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263226
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01

Assortrip
type: MusicAlbum
date published: 1970-01-01
track: キミの隣
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279133
  explicit: false
  by artist: halca
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    type: MusicAlbum
    date published: 1970-01-01
track: one another
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  duration: PT3M49S
  duration ms: 229760
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  by artist: halca
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    type: MusicAlbum
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track: うそじゃないよ
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  duration ms: 244240
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  by artist: halca
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    type: MusicAlbum
    date published: 1970-01-01
track: 放課後のリバティ
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  duration: PT3M50S
  duration ms: 230480
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    type: MusicAlbum
    date published: 1970-01-01
track: be your XXX
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  duration: PT3M10S
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  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: あの頃の僕たちを
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  duration: PT4M45S
  duration ms: 285160
  explicit: false
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    date published: 1970-01-01
track: HORiZON
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  duration: PT3M57S
  duration ms: 237280
  explicit: false
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    date published: 1970-01-01
track: サカナイトデイズ
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271266
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: Ride on Music!
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  duration ms: 247240
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    date published: 1970-01-01
track: スターティングブルー
  type: MusicRecording
  duration: PT3M48S
  duration ms: 228986
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: ハローセカイ
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267106
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: センチメンタルクライシス
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243960
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01
track: サワリタイミライ
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263226
  explicit: false
  by artist: halca
  in album: Assortrip
    type: MusicAlbum
    date published: 1970-01-01

Kimi No Tonari
type: MusicAlbum
date published: 2018-05-30
track: キミの隣
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279666
  explicit: false
  by artist: halca
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track: サカナイトデイズ
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  by artist: halca
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track: 明日もまた
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  by artist: halca
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track: キミの隣 instrumental
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  duration: PT4M39S
  duration ms: 279666
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  by artist: halca
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    type: MusicAlbum
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track: サカナイトデイズ instrumental
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  by artist: halca
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track: 明日もまた instrumental
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  by artist: halca
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キミの隣
type: MusicAlbum
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track: キミの隣
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track: サカナイトデイズ
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track: 明日もまた
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  additional property: OTSHash
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  additional property: OTSRecordURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSCanonicalRecord
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214aff741ceaea245e94f99c4829188a57181dc527724e85a04706a1f4246668. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6WfOWDEjeQuh4Nnolpxf1s.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6WfOWDEjeQuh4Nnolpxf1s.
    date published: 2026-07-02T16:51:38Z
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track: キミの隣 instrumental
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track: 明日もまた instrumental
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キミの隣
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スターティングブルー
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  isrc code: JPU901802845
track: うそじゃないよ
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スターティングブルー
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つぶやきレター
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つぶやきレター
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センチメンタルクライシス
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Sentimental Crisis
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センチメンタルクライシス
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white disc +++
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white disc +++
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Houkagono Liberty
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放課後のリバティ
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放課後のリバティ
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時としてバイオレンス
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Tokitoshite Violence
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時としてバイオレンス
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時としてバイオレンス
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FIRST DROP
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告白バンジージャンプ
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キミがいたしるし
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もういいや。
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キミがいたしるし
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nolca solca
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Good Luck Waker (Complete Edition)
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瞬間最大風速
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瞬間最大風速 (Complete Edition)
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ウィークエンドロール
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ウィークエンドロール
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キミの隣（BIBLE version） - Mixed
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キミがいたしるし（BIBLE version） - Mixed
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センチメンタルクライシス（BIBLE version） - Mixed
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キミがいたしるし (James Landino Remix) - SACRA BEATS Singles
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I feel you
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