LUNKHEAD
type: MusicGroup
genre: j-rock
description: Lunkhead (ランクヘッド) is a Japanese rock band signed under Victor Entertainment and is managed by Chockyu co. ltd. The band played its first show during their high school graduation ceremony in 1999. Lun
popularity: 21
followers: 13187
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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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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  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 → 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fabbe3b3bee76ca5a1166e042aa4372eabe4508f9110b9e3776d17c96ec88c8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc3d3de8-0e6f-412a-9360-10740ea42043.json and https://artists.proofprofile.net/proofs/artist/dc3d3de8-0e6f-412a-9360-10740ea42043.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: 白い声
  type: MusicAlbum
  date published: 2004-01-21
album: プリズム
  type: MusicAlbum
  date published: 2004-05-19
album: 地図
  type: MusicAlbum
  date published: 2004-06-23
  track: 白い声
    type: MusicRecording
    duration: PT4M43S
    duration ms: 283577
    explicit: false
    by artist: LUNKHEAD
    in album: 地図
      type: MusicAlbum
      date published: 2004-06-23
    genre: j-rock
    isrc code: JPVI00330830
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf9239a0e965fabd8fe8c8e5a356e51715fc06e886b465bc396b97e0d106fdb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPVI00330830.
      date published: 2026-07-15T00:21:05Z
    audio: 白い声
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 88.464
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
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      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.427
      additional property: Energy
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        value: 0.883
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.725
      additional property: Key Name
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      additional property: Mode Name
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album: ひとりごと
  type: MusicAlbum
  date published: 2004-11-10
album: 体温
  type: MusicAlbum
  date published: 2005-03-24
  track: 体温
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254700
    explicit: false
    by artist: LUNKHEAD
    in album: 体温
      type: MusicAlbum
      date published: 2005-03-24
    genre: j-rock
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    additional property: OTSVerificationAPI
      type: PropertyValue
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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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049071d3e0fd4741b78eef3d8539e3e9ea58de1bbfb8eb20074d80896443d90c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:47:48Z), 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/JPVI00502790.
      date published: 2026-07-21T21:47:48Z
    audio: 体温
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 月と手のひら
album: プルケリマ
album: カナリア ボックス
album: すべて
album: LUNKHEAD
album: 夏の匂い
album: Clever, but Not Funny
album: 桜日和
album: きらりいろ
album: FORCE
album: ENTRANCE ～BEST OF LUNKHEAD age18-27～
album: 素晴らしい世界
album: 孵化
album: AT0M
album: V0X
album: [vivo]
album: 青に染まる白
album: ENTRANCE2 ～BEST OF LUNKHEAD 2008-2012～
album: SOUND FILES 20091128～THE VERY BEST OF LUNKHEAD～
album: SOUND FILES 20091128-THE VERY BEST OF LUNKHEAD-
album: メメントモリ
album: 影と煙草と僕と青
album: play at the CROSSROAD 1[1999‐2000]
album: play at the CROSSROAD 2 [2000‐2001]
album: REACT
album: 家
album: 千川通りは夕風だった (Reissue)
album: アリアル
album: 決戦前夜
album: Kessen Zenya
album: アウトマイヘッド
album: 心音
album: 小さな反逆
album: はじまれ
album: plusequal
album: 千川通りは夕風だった（Reissue）
album: Very Best of Acoustics
album: REACT2
album: ALIVE ‐SOUND FILES‐ ～20090320新木場STUDIO COAST～
album: ALIVE ‐SOUND FILES- ～20090320新木場STUDIO COAST～
album: ナハトムジーク
album: Nachtmusik
album: アス
album: Re:innocent
album: リノセント
album: hoshigakagayaiteita
album: 星が輝いていた

Acousticness
type: PropertyValue
value: 0.026

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.333

Valence (Positivity)
type: PropertyValue
value: 0.506

Loudness (dB)
type: PropertyValue
value: -3.043

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

月と手のひら
type: MusicAlbum
date published: 2005-05-11

月と手のひら
type: MusicAlbum
date published: 2005-05-11

プルケリマ
type: MusicAlbum
date published: 2005-10-26

カナリア ボックス
type: MusicAlbum
date published: 2006-02-22

すべて
type: MusicAlbum
date published: 2006-04-19

LUNKHEAD
type: MusicAlbum
date published: 2006-06-21

夏の匂い
type: MusicAlbum
date published: 2006-07-19

Clever, but Not Funny
type: MusicAlbum
date published: 2007-01-09

桜日和
type: MusicAlbum
date published: 2007-01-24

きらりいろ
type: MusicAlbum
date published: 2007-05-02

FORCE
type: MusicAlbum
date published: 2007-06-27
track: きらりいろ
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238947
  explicit: false
  by artist: LUNKHEAD
  in album: FORCE
    type: MusicAlbum
    date published: 2007-06-27
  genre: j-rock
  isrc code: JPVI00704430
  additional property: CopyrightID
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a5d944cb64362fc9663f41f3076c3f08208655521fa237fbc88b8937632b18. 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/JPVI00704430.
    date published: 2026-07-05T01:12:41Z
  audio: きらりいろ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.956
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.522
    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
      value: 0.054
    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.239
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.726
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.872
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 夏の匂い
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280266
  explicit: false
  by artist: LUNKHEAD
  in album: FORCE
    type: MusicAlbum
    date published: 2007-06-27
  genre: j-rock
  isrc code: JPVI00628340
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T22:48:52Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x399873d5328c418ac36d251f97a4bbd6e737f498c2964a1e19c4d10fcada97da. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPVI00628340.
    date published: 2026-07-04T22:48:52Z
  audio: 夏の匂い
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 76.076
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.524
    additional property: Energy
      type: PropertyValue
      value: 0.577
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.162
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.259
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.409
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.025
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

ENTRANCE ～BEST OF LUNKHEAD age18-27～
type: MusicAlbum
date published: 2008-03-05

素晴らしい世界
type: MusicAlbum
date published: 2008-04-02

孵化
type: MusicAlbum
date published: 2008-04-16

AT0M
type: MusicAlbum
date published: 2009-07-08
track: 闇を暴け
  type: MusicRecording
  duration: PT4M5S
  duration ms: 245983
  explicit: false
  by artist: LUNKHEAD
  in album: AT0M
    type: MusicAlbum
    date published: 2009-07-08
  genre: j-rock
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI00909860
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:59:37Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0d39ba49dc4eeba86757db9f7cf6f8abb3d99c9ca6604b0f707ea337b018c3. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPVI00909860.
    date published: 2026-07-05T10:59:37Z
  audio: 闇を暴け
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.348
    additional property: Energy
      type: PropertyValue
      value: 0.958
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.649
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.142
    additional property: Loudness (dB)
      type: PropertyValue
      value: -1.886
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

V0X
type: MusicAlbum
date published: 2010-01-20

[vivo]
type: MusicAlbum
date published: 2011-02-09
track: シンドローム
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249002
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  by artist: LUNKHEAD
  in album: [vivo]
    type: MusicAlbum
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  genre: j-rock
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
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青に染まる白
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ENTRANCE2 ～BEST OF LUNKHEAD 2008-2012～
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SOUND FILES 20091128～THE VERY BEST OF LUNKHEAD～
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play at the CROSSROAD 1[1999‐2000]
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REACT
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家
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家
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家
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家
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アリアル
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Kessen Zenya
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決戦前夜
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plusequal
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plusequal
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plusequal
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千川通りは夕風だった（Reissue）
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Very Best of Acoustics
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REACT2
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ALIVE ‐SOUND FILES‐ ～20090320新木場STUDIO COAST～
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REACT2
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REACT2
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ALIVE ‐SOUND FILES- ～20090320新木場STUDIO COAST～
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Very Best of Acoustics
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REACT
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REACT
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アス
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アス
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OpenTimestamps Proof of Existence
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