Kotobukikun
type: MusicGroup
genre: reggae
popularity: 36
followers: 41228
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf395bde0e5e1624edd9fdef122dd2117bde64f01efe593135092dc8cf1286fa3. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44d0f3ed-3a6c-4ce3-9e75-be288e623f9d.json and https://artists.proofprofile.net/proofs/artist/44d0f3ed-3a6c-4ce3-9e75-be288e623f9d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: SEASON IN SUMMER (SUMMER SONIC RIDDIM)
  type: MusicAlbum
  date published: 2012-08-01
  track: SEASON IN SUMMER
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    by artist: Kotobukikun
    in album: SEASON IN SUMMER (SUMMER SONIC RIDDIM)
      type: MusicAlbum
      date published: 2012-08-01
    isrc code: JPM551000439
album: SEASON IN SUMMER (SUMMER SONIC RIDDIM)
  type: MusicAlbum
  date published: 2012-08-01
  track: SEASON IN SUMMER (SUMMER SONIC RIDDIM)
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    by artist: Kotobukikun
    in album: SEASON IN SUMMER (SUMMER SONIC RIDDIM)
      type: MusicAlbum
      date published: 2012-08-01
album: LONG DISTANCE Part2
  type: MusicAlbum
  date published: 2012-08-22
  track: LONG DISTANCE Part2
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    by artist: Kotobukikun
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      type: MusicAlbum
      date published: 2012-08-22
    isrc code: JPBV01221401
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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 → block OTSBitcoinBlock must exist at that height 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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32e72e1afe9b7cb8c3483de7d2cd62a9748608f7f518e8f4f86b698ba2f5076. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPBV01221401.
      date published: 2026-07-16T02:28:43Z
album: コトブキイズム〜Dr.BEATZコレクション〜
  type: MusicAlbum
  date published: 2012-10-03
  track: キングサイズラジオ〜オープニング〜
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    duration: PT1M5S
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    by artist: Kotobukikun
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      type: MusicAlbum
      date published: 2012-10-03
  track: LONG DISTANCE
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    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: 灼熱のDESIRE
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    duration: PT3M45S
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: FALL END LOVE
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    duration: PT3M38S
    duration ms: 218400
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: ハニーちゃん
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      type: MusicAlbum
      date published: 2012-10-03
  track: ～フレッシュベジタブル～
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    duration ms: 70173
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: やるだけ (feat. NATURAL WEAPON)
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    duration: PT3M11S
    duration ms: 191093
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    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: 戦国時代
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    duration: PT3M24S
    duration ms: 204680
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: DREM ISLAND JAPAN
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    duration: PT3M53S
    duration ms: 233573
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: ～このビートボッピン～
    type: MusicRecording
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    duration ms: 67146
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    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
      type: MusicAlbum
      date published: 2012-10-03
  track: 帰り道 (feat. DADA)
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    duration: PT3M38S
    duration ms: 218626
    explicit: false
    by artist: Kotobukikun
    in album: コトブキイズム〜Dr.BEATZコレクション〜
  track: SEASON IN SUMMER (feat. BAD JUSTICE & GUN HYPE)
  track: YAH SO NICE
  track: キングサイズラジオ〜エンディング〜
  track: RESPECT FOR LIFE
album: YAH SO NICE
album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
album: やるだけ feat. NATURAL WEAPON
album: FALL END LOVE
album: ハニーちゃん
album: SUMMER DAYS feat. BAD JUSTICE & KOREY -Single
album: ALL NIGHT LONG
album: All Night Long
album: DEAINO, ,, ~ [KOTOBUKI KUN] Deh yah you know !? ~
album: 出会いの, ,, ～「KOTOBUKI KUN」Deh yah you know !? 〜
album: SUMMER LOVE
album: オレノキュウキョク
album: コンビイズム × 14ゴールデン・コラボレーション
album: ENDLESS SUMMER
album: WHO DARES WINS -イドムモノヘ-
album: SPECIAL THANX 〜ありがたや〜
album: Anything Goes -Single
album: Ai no Uta
album: ONE LIFE
album: SUMMAH!!
album: GENERAL
album: 大阪 X'mas Eve Lover
album: OSAKA X'mas Eve Lover
album: 一人じゃない
album: あー夏休み
album: ニューレベ
album: 大どんでん返し
album: ラバサマ
album: Life is Great
album: 大どんでん返し (ハルハクルremix)
album: RAGGAMUFFIN SKANK
album: Tokyo City
album: Yoru Wo Surinukete
album: 夜をすり抜けて
album: 三角公園
album: Sankaku Kouen
album: Butterfly Effect
track: 出逢った頃のままで。
track: あれからの二人は。
track: キミと未来
track: ついのひと。feat. 寿君 M∀LI REMIX
track: ONE LIFE DUB (feat. KOTOBUKIKUN)
track: ORIGINAL LIFESTYLE (feat. KOTOBUKIKUN)
track: ONE LIFE
track: Get It Done!!!
track: それでも君が好き
track: 一度きりの
track: 最後に笑おう
track: CLEAN & FRESH (feat. KOTOBUKI KUN & RAY)
track: ロック・ザ・パーティー feat. SWAY, Staxx T (CREAM), APOLLO, 寿君 & KIRA
track: OOKINI (feat. KOTOBUKI KUN)
track: RAGGAMUFFIN SKANK DUB (feat. KOTOBUKI KUN)

Kotobukikun
type: MusicGroup

コトブキイズム〜Dr.BEATZコレクション〜
type: MusicAlbum
date published: 2012-10-03

SEASON IN SUMMER (feat. BAD JUSTICE & GUN HYPE)
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explicit: false
by artist: Kotobukikun
in album: コトブキイズム〜Dr.BEATZコレクション〜
  type: MusicAlbum
  date published: 2012-10-03

YAH SO NICE
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explicit: false
by artist: Kotobukikun
in album: コトブキイズム〜Dr.BEATZコレクション〜
  type: MusicAlbum
  date published: 2012-10-03

キングサイズラジオ〜エンディング〜
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explicit: false
by artist: Kotobukikun
in album: コトブキイズム〜Dr.BEATZコレクション〜
  type: MusicAlbum
  date published: 2012-10-03

RESPECT FOR LIFE
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  type: MusicAlbum
  date published: 2012-10-03

YAH SO NICE
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track: YAH SO NICE
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    date published: 2012-10-03
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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 → block OTSBitcoinBlock must exist at that height 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 0xf198685faae459f82150cea12d3a4feb92fd37df24a27c97926c909f457e21a5. 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/JPM551200001.
    date published: 2026-07-05T10:59:37Z

YAH SO NICE
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date published: 2012-10-03
track: YAH SO NICE
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    type: MusicAlbum
    date published: 2012-10-03

KOTOBUKIIZUMU-DR.BEATZ COLLECTION
type: MusicAlbum
date published: 2012-10-03
track: KINGSIZE RADIO OPENING
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    type: MusicAlbum
    date published: 2012-10-03
track: LONG DISTANCE
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    type: MusicAlbum
    date published: 2012-10-03
track: Scorching heat Desire
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    type: MusicAlbum
    date published: 2012-10-03
track: FALL END LOVE
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  in album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
    type: MusicAlbum
    date published: 2012-10-03
track: Honey Chan
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  in album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
    type: MusicAlbum
    date published: 2012-10-03
track: ~ fresh vegetables~
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  duration: PT1M10S
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    date published: 2012-10-03
track: Just do it (feat. NATURAL WEAPON)
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  duration: PT3M11S
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    type: MusicAlbum
    date published: 2012-10-03
track: Sengoku period
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  duration: PT3M24S
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    type: MusicAlbum
    date published: 2012-10-03
track: DREM ISLAND JAPAN
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  in album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
    type: MusicAlbum
    date published: 2012-10-03
track: ~This beat BPN~
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  duration: PT1M7S
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  in album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
    type: MusicAlbum
    date published: 2012-10-03
track: On the way home (feat. DADA)
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  duration: PT3M38S
  duration ms: 218626
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    type: MusicAlbum
    date published: 2012-10-03
track: SEASON IN SUMMER (feat. BAD JUSTICE & GUN HYPE)
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  duration: PT3M26S
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    type: MusicAlbum
    date published: 2012-10-03
track: YAH SO NICE
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  in album: KOTOBUKIIZUMU-DR.BEATZ COLLECTION
    type: MusicAlbum
    date published: 2012-10-03
track: KINGSIZE RADIO ENDING
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  duration: PT0M54S
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    type: MusicAlbum
    date published: 2012-10-03
track: RESPECT FOR LIFE
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    type: MusicAlbum
    date published: 2012-10-03

YAH SO NICE
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date published: 2012-10-03
track: YAH SO NICE
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    type: MusicAlbum
    date published: 2012-10-03

やるだけ feat. NATURAL WEAPON
type: MusicAlbum
date published: 2012-10-31
track: やるだけ feat. NATURAL WEAPON
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    date published: 2012-10-31

やるだけ feat. NATURAL WEAPON
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date published: 2012-10-31
track: やるだけ feat. NATURAL WEAPON
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    date published: 2012-10-31

FALL END LOVE
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track: FALL END LOVE
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    date published: 2012-11-14

FALL END LOVE
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FALL END LOVE
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ハニーちゃん
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ハニーちゃん
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ハニーちゃん
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  isrc code: JPM551200014

SUMMER DAYS feat. BAD JUSTICE & KOREY -Single
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date published: 2013-07-31
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    date published: 2013-07-31

SUMMER DAYS feat. BAD JUSTICE & KOREY -Single
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ALL NIGHT LONG
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    date published: 2013-08-14

All Night Long
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DEAINO, ,, ~ [KOTOBUKI KUN] Deh yah you know !? ~
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track: SAFARI PARK - ZETMAN Remix
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出会いの, ,, ～「KOTOBUKI KUN」Deh yah you know !? 〜
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track: 出逢った頃のままで。 (feat. TAK-Z & 寿君)
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track: SKIT～ことやんの夏休み〜
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track: 今だけは…
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SUMMER LOVE
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オレノキュウキョク
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  subject of: OpenTimestamps Proof of Existence
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コンビイズム × 14ゴールデン・コラボレーション
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T21:18:05Z
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  subject of: OpenTimestamps Proof of Existence
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track: JAH JAH KNOW EVERYTHING
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T01:12:41Z
track: めちゃくちゃ SUMMER DEH YAH ゆ〜の〜?
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track: CARNIVAL MONSTER
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track: カナリタマッテル
track: タイムマシーン

Kotobukikun
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コンビイズム × 14ゴールデン・コラボレーション
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date published: 2015-04-29

カナリタマッテル
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explicit: false
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-03T23:28:02Z

タイムマシーン
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ENDLESS SUMMER
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WHO DARES WINS -イドムモノヘ-
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SPECIAL THANX 〜ありがたや〜
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track: JAH JAH KNOW EVERYTHING
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-13T00:05:10Z
track: ENDLESS SUMMER
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-04T11:19:20Z
track: BRAND NEW DAY
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track: Ai no Uta
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T08:20:01Z
track: ISLAND LOVE
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Anything Goes -Single
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Ai no Uta
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SPECIAL THANX 〜ありがたや〜
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ONE LIFE
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SUMMAH!!
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SUMMAH!!
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GENERAL
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GENERAL
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大阪 X'mas Eve Lover
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OSAKA X'mas Eve Lover
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一人じゃない
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track: GENERAL
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track: マンマ・ミーア
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track: 自由に舞う
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あー夏休み
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あー夏休み
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    date published: 2018-06-26
  isrc code: JPPO01802373

ニューレベ
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-04T22:48:52Z
track: あー夏休み
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track: Jump & Let's Go
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track: SUMMAH!!
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track: マンマ・ミーア
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track: 自由に舞う
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track: Touch inna Jamaica
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track: 大阪 X’mas Eve Lover
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track: キミと未来
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track: 曇りのち晴れ
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  isrc code: JPPO01802378
track: ONE LIFE
  type: MusicRecording
  duration: PT4M3S
  duration ms: 243453
  explicit: false
  by artist: Kotobukikun
  in album: ニューレベ
    type: MusicAlbum
    date published: 2018-07-18
  isrc code: JPJ901615950

大どんでん返し
type: MusicAlbum
date published: 2019-03-18
track: 大どんでん返し
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279360
  explicit: false
  by artist: Kotobukikun
  in album: 大どんでん返し
    type: MusicAlbum
    date published: 2019-03-18

ラバサマ
type: MusicAlbum
date published: 2019-07-31
track: ラバサマ
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259226
  explicit: false
  by artist: Kotobukikun
  in album: ラバサマ
    type: MusicAlbum
    date published: 2019-07-31
track: SEASON IN SUMMER - YOUSLESS Remix
  type: MusicRecording
  duration: PT3M51S
  duration ms: 231693
  explicit: false
  by artist: Kotobukikun
  in album: ラバサマ
    type: MusicAlbum
    date published: 2019-07-31

Life is Great
type: MusicAlbum
date published: 2019-11-27
track: Life is Great
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244293
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-11-27

Life is Great
type: MusicAlbum
date published: 2019-12-04
track: Not Alone
  type: MusicRecording
  duration: PT4M22S
  duration ms: 262853
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
track: ラバサマ
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259200
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
  isrc code: JPPO01902858
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-04T16:45:04+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xdf6e8763438403b97ac12b8735976327f6c0c46824f60683017805fd71ba43f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01902858
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 → block OTSBitcoinBlock must exist at that height 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 0xdf6e8763438403b97ac12b8735976327f6c0c46824f60683017805fd71ba43f3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPO01902858.
    date published: 2026-07-05T01:43:49Z
track: SEASON IN SUMMER - YOUSLESS Remix
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232600
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
track: CLEAN & FRESH
  type: MusicRecording
  duration: PT3M35S
  duration ms: 215786
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
  isrc code: JPPO01904397
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block/957882
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01904397
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T16:48:10Z
  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 → block OTSBitcoinBlock must exist at that height 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 0x57b7afd8c797e39ea0776539628f7827fd54700664dd288a235374d3dc7dd504. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/JPPO01904397.
    date published: 2026-07-13T16:48:10Z
track: キカセテホシイ
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232626
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
  isrc code: JPPO01803335
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958224
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01803335
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T02:28:43Z
  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 → block OTSBitcoinBlock must exist at that height 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 0x64402e29215b928acdb31f5e2e7b9de35b78a3b4dce7506a371a46cda512fa05. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/JPPO01803335.
    date published: 2026-07-16T02:28:43Z
track: Life is Great
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244973
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
track: 最後の恋
  type: MusicRecording
  duration: PT3M30S
  duration ms: 210133
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
  isrc code: JPPO01904399
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-04T11:27:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xede8f9b48febb63ecc014903eba21ffd357efa189a995013eada5e2b548c986e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPO01904399
  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 → block OTSBitcoinBlock must exist at that height 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 0xede8f9b48febb63ecc014903eba21ffd357efa189a995013eada5e2b548c986e. 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/JPPO01904399.
    date published: 2026-07-05T01:12:41Z
track: Never
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224573
  explicit: false
  by artist: Kotobukikun
  in album: Life is Great
    type: MusicAlbum
    date published: 2019-12-04
track: 大どんでん返し

大どんでん返し
type: MusicRecording
duration: PT4M38S
duration ms: 278773
explicit: false
by artist: Kotobukikun
in album: Life is Great
  type: MusicAlbum
  date published: 2019-12-04

大どんでん返し (ハルハクルremix)
type: MusicAlbum
date published: 2020-12-27
track: 大どんでん返し - ハルハクルremix
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283153
  explicit: false
  by artist: Kotobukikun
  in album: 大どんでん返し (ハルハクルremix)
    type: MusicAlbum
    date published: 2020-12-27

RAGGAMUFFIN SKANK
type: MusicAlbum
date published: 2022-05-08
track: RAGGAMUFFIN SKANK
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178840
  explicit: false
  by artist: Kotobukikun
  in album: RAGGAMUFFIN SKANK
    type: MusicAlbum
    date published: 2022-05-08
  isrc code: TCJPR2278408
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T13:56:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x148a67cbe0f54bc64d88f902391a168f2d647ff3fe179b110cd3be4241ee683f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPR2278408
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 → block OTSBitcoinBlock must exist at that height 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 0x148a67cbe0f54bc64d88f902391a168f2d647ff3fe179b110cd3be4241ee683f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPR2278408.
    date published: 2026-07-03T19:59:51Z

RAGGAMUFFIN SKANK
type: MusicAlbum
date published: 2022-05-08
track: RAGGAMUFFIN SKANK
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178840
  explicit: false
  by artist: Kotobukikun
  in album: RAGGAMUFFIN SKANK
    type: MusicAlbum
    date published: 2022-05-08

Tokyo City
type: MusicAlbum
date published: 2022-06-26
track: Tokyo City
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194688
  explicit: false
  by artist: Kotobukikun
  in album: Tokyo City
    type: MusicAlbum
    date published: 2022-06-26

Tokyo City
type: MusicAlbum
date published: 2022-06-26
track: Tokyo City
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194688
  explicit: false
  by artist: Kotobukikun
  in album: Tokyo City
    type: MusicAlbum
    date published: 2022-06-26

Yoru Wo Surinukete
type: MusicAlbum
date published: 2023-09-29
track: Yoru Wo Surinukete
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271029
  explicit: false
  by artist: Kotobukikun
  in album: Yoru Wo Surinukete
    type: MusicAlbum
    date published: 2023-09-29

夜をすり抜けて
type: MusicAlbum
date published: 2023-09-29
track: 夜をすり抜けて
  type: MusicRecording
  duration: PT4M31S
  duration ms: 271029
  explicit: false
  by artist: Kotobukikun
  in album: 夜をすり抜けて
    type: MusicAlbum
    date published: 2023-09-29
  isrc code: JPH372300141
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:59:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x44bfe6cc06728e0b22ae5cb0e989dc589cb5da445ac4def1e6d2607ba6dfc0b9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958341
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPH372300141
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T02:00:01Z
  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 → block OTSBitcoinBlock must exist at that height 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 0x44bfe6cc06728e0b22ae5cb0e989dc589cb5da445ac4def1e6d2607ba6dfc0b9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:00:01Z), 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/JPH372300141.
    date published: 2026-07-17T02:00:01Z

三角公園
type: MusicAlbum
date published: 2024-01-22
track: 三角公園
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269428
  explicit: false
  by artist: Kotobukikun
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    type: MusicAlbum
    date published: 2024-01-22
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T22:26:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958335
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPH372300187
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T22:37:47Z
  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 → block OTSBitcoinBlock must exist at that height 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 0x2b07a72b04839d1610cc7e8dcff5a1636c7085aed20f75c199ff5f69b9f85506. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/JPH372300187.
    date published: 2026-07-16T22:37:47Z

Sankaku Kouen
type: MusicAlbum
date published: 2024-01-22
track: Sankaku Kouen
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269428
  explicit: false
  by artist: Kotobukikun
  in album: Sankaku Kouen
    type: MusicAlbum
    date published: 2024-01-22

Butterfly Effect
type: MusicAlbum
date published: 2024-07-31
track: Butterfly Effect
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221166
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-07-31
  isrc code: JPH372400071
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T19:15:10+00:00

Butterfly Effect
type: MusicAlbum
date published: 2024-07-31
track: Butterfly Effect
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221166
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-07-31

Butterfly Effect
type: MusicAlbum
date published: 2024-11-27
track: Butterfly Effect
  type: MusicRecording
  duration: PT3M38S
  duration ms: 218850
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Celebrating
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167250
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Yoruwo surinukete
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269029
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: RAGGAMUFFIN SKANK
  type: MusicRecording
  duration: PT2M59S
  duration ms: 179175
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Baby Girl
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184768
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Gwaan to di Top
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223080
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Ookini
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188906
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Tokyo City
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197000
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Sankaku kouen
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269428
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: Syonen pistol
  type: MusicRecording
  duration: PT3M36S
  duration ms: 216321
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: No Rain No Rainbow
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227596
  explicit: false
  by artist: Kotobukikun
  in album: Butterfly Effect
    type: MusicAlbum
    date published: 2024-11-27
track: COMPASS
  type: MusicRecording
  duration: PT4M23S
  duration ms: 263997
  explicit: false
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Butterfly Effect
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track: 夜をすり抜けて
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track: RAGGAMUFFIN SKANK
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track: おおきに
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track: No Rain No Rainbow
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track: COMPASS
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出逢った頃のままで。
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あれからの二人は。
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キミと未来
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by artist: Ms.OOJA
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出逢った頃のままで。
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ついのひと。feat. 寿君 M∀LI REMIX
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ONE LIFE DUB (feat. KOTOBUKIKUN)
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ORIGINAL LIFESTYLE (feat. KOTOBUKIKUN)
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キミと未来
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ONE LIFE
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Get It Done!!!
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それでも君が好き
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一度きりの
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最後に笑おう
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一度きりの
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最後に笑おう
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キミと未来
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CLEAN & FRESH (feat. KOTOBUKI KUN & RAY)
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ロック・ザ・パーティー feat. SWAY, Staxx T (CREAM), APOLLO, 寿君 & KIRA
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OOKINI (feat. KOTOBUKI KUN)
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  date published: 2021-07-21

RAGGAMUFFIN SKANK DUB (feat. KOTOBUKI KUN)
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  date published: 2022-09-28