Chogakusei
type: MusicGroup
genre: j-pop
genre: vocaloid
popularity: 44
followers: 139688
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c7c7c5fc33b142c36229c10e4ba57ffc1edba547d163c13293c29dcb6272c74
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3
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 0x9c7c7c5fc33b142c36229c10e4ba57ffc1edba547d163c13293c29dcb6272c74. 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/482ca72b-8fed-42d0-945d-a19fe86ca2f3.json and https://artists.proofprofile.net/proofs/artist/482ca72b-8fed-42d0-945d-a19fe86ca2f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: ルーム No.4
  type: MusicAlbum
  date published: 2020-12-18
  track: ルーム No.4
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236422
    explicit: false
    by artist: Chogakusei
    in album: ルーム No.4
      type: MusicAlbum
      date published: 2020-12-18
  track: テレキャスタービーボーイ(long ver.)
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161887
    explicit: false
    by artist: Chogakusei
    in album: ルーム No.4
      type: MusicAlbum
      date published: 2020-12-18
album: バットオンリーユー
  type: MusicAlbum
  date published: 2020-12-25
  track: バットオンリーユー
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196695
    explicit: false
    by artist: Chogakusei
    in album: バットオンリーユー
      type: MusicAlbum
      date published: 2020-12-25
  track: ビターチョコデコレーション(超学生 edition)
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195556
    explicit: false
    by artist: Chogakusei
    in album: バットオンリーユー
      type: MusicAlbum
      date published: 2020-12-25
album: ヒト
  type: MusicAlbum
  date published: 2021-04-02
  track: ヒト
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188619
    explicit: false
    by artist: Chogakusei
    in album: ヒト
      type: MusicAlbum
      date published: 2021-04-02
  track: ボッカデラベリタ
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201051
    explicit: false
    by artist: Chogakusei
    in album: ヒト
      type: MusicAlbum
      date published: 2021-04-02
album: けものになりたい！
  type: MusicAlbum
  date published: 2021-09-29
  track: けものになりたい！
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192936
    explicit: false
    by artist: Chogakusei
    in album: けものになりたい！
      type: MusicAlbum
      date published: 2021-09-29
album: Innocent Tyrant
  type: MusicAlbum
  date published: 2021-11-10
  track: Innocent Tyrant
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213965
    explicit: false
    by artist: Chogakusei
    in album: Innocent Tyrant
      type: MusicAlbum
      date published: 2021-11-10
album: Non-Breath Oblige (Cover)
  type: MusicAlbum
  date published: 2022-03-09
  track: Non-Breath Oblige - Cover
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209256
    explicit: false
    by artist: Chogakusei
    in album: Non-Breath Oblige (Cover)
      type: MusicAlbum
      date published: 2022-03-09
album: キュートなカノジョ
  type: MusicAlbum
  date published: 2022-03-09
  track: キュートなカノジョ
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137472
    explicit: false
    by artist: Chogakusei
    in album: キュートなカノジョ
      type: MusicAlbum
      date published: 2022-03-09
album: Cute na Kanojo
  type: MusicAlbum
  date published: 2022-03-09
  track: Cute na Kanojo
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137472
    explicit: false
    by artist: Chogakusei
    in album: Cute na Kanojo
      type: MusicAlbum
      date published: 2022-03-09
album: シャンティ
  type: MusicAlbum
  date published: 2022-03-09
  track: シャンティ
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165020
    explicit: false
    by artist: Chogakusei
    in album: シャンティ
      type: MusicAlbum
      date published: 2022-03-09
album: ノンブレス・オブリージュ(Cover)
  type: MusicAlbum
  date published: 2022-03-09
  track: ノンブレス・オブリージュ - Cover
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209256
    explicit: false
    by artist: Chogakusei
    in album: ノンブレス・オブリージュ(Cover)
      type: MusicAlbum
      date published: 2022-03-09
album: Shanti
  type: MusicAlbum
  date published: 2022-03-09
  track: Shanti
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165020
    explicit: false
    by artist: Chogakusei
    in album: Shanti
      type: MusicAlbum
      date published: 2022-03-09
album: Untouchable
  type: MusicAlbum
  date published: 2022-06-29
  track: Untouchable
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195726
    explicit: false
    by artist: Chogakusei
    in album: Untouchable
    isrc code: JPPC02210972
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
album: Fake Parade
album: Kyukurarin
album: Unknown Mother-Goose
album: Dokuzu (Cover)
album: ド屑(Cover)
album: きゅうくらりん
album: アンノウン・マザーグース
album: Inger
album: インゲル
album: Psycho
album: サイコ
album: Did you see the sunrise?
album: Did You See the Sunrise?
album: Let's go
album: Let's Go
album: 超
album: Cho
album: Space Cat Big Bang
album: スペースキャットビッグバン
album: ファントム
album: Phantom
album: ヒス
album: His
album: 超獣戯画
album: Choju Giga
album: Abyss-Over
album: Mar6le
album: MAR6LE
album: Konton Boogie
album: 混沌ブギ
album: Brain Revolution Girl
album: Bug
album: バグ
album: Love me, Love me, Love me
album: 愛して愛して愛して
album: 脳内革命ガール
album: Hazure
album: Killer Tuner
album: キラーチューナー
album: エウレカレプリカ
album: ラヴィ
album: Medicine
album: イガク
album: モエチャッカファイア
album: Eureka Replica
album: Lavie
album: MoeChakkaFire
album: pa pa pa
album: I Love Internet
album: アイラブインターネット
album: しゅきしゅきメイドマスカレイド

Chogakusei
type: MusicGroup

Untouchable
type: MusicAlbum
date published: 2022-06-29

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-06-28T19:58:24+00:00

Untouchable
type: MusicAlbum
date published: 2022-06-29
track: Untouchable
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195726
  explicit: false
  by artist: Chogakusei
  in album: Untouchable
    type: MusicAlbum
    date published: 2022-06-29
  isrc code: JPPC02210972
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-28T19:58:24+00:00

Fake Parade
type: MusicAlbum
date published: 2022-07-27
track: Fake Parade
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185800
  explicit: false
  by artist: Chogakusei
  in album: Fake Parade
    type: MusicAlbum
    date published: 2022-07-27

Fake Parade
type: MusicAlbum
date published: 2022-07-27
track: Fake Parade
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185800
  explicit: false
  by artist: Chogakusei
  in album: Fake Parade
    type: MusicAlbum
    date published: 2022-07-27

Kyukurarin
type: MusicAlbum
date published: 2022-08-17
track: Kyukurarin
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214640
  explicit: false
  by artist: Chogakusei
  in album: Kyukurarin
    type: MusicAlbum
    date published: 2022-08-17

Unknown Mother-Goose
type: MusicAlbum
date published: 2022-08-17
track: Unknown Mother-Goose
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283537
  explicit: false
  by artist: Chogakusei
  in album: Unknown Mother-Goose
    type: MusicAlbum
    date published: 2022-08-17

Dokuzu (Cover)
type: MusicAlbum
date published: 2022-08-17
track: Dokuzu - Cover
  type: MusicRecording
  duration: PT1M58S
  duration ms: 118720
  explicit: false
  by artist: Chogakusei
  in album: Dokuzu (Cover)
    type: MusicAlbum
    date published: 2022-08-17

ド屑(Cover)
type: MusicAlbum
date published: 2022-08-17
track: ド屑 - Cover
  type: MusicRecording
  duration: PT1M58S
  duration ms: 118720
  explicit: false
  by artist: Chogakusei
  in album: ド屑(Cover)
    type: MusicAlbum
    date published: 2022-08-17

きゅうくらりん
type: MusicAlbum
date published: 2022-08-17
track: きゅうくらりん
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214640
  explicit: false
  by artist: Chogakusei
  in album: きゅうくらりん
    type: MusicAlbum
    date published: 2022-08-17

アンノウン・マザーグース
type: MusicAlbum
date published: 2022-08-17
track: アンノウン・マザーグース
  type: MusicRecording
  duration: PT4M43S
  duration ms: 283537
  explicit: false
  by artist: Chogakusei
  in album: アンノウン・マザーグース
    type: MusicAlbum
    date published: 2022-08-17

Inger
type: MusicAlbum
date published: 2022-09-28
track: Inger
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197296
  explicit: false
  by artist: Chogakusei
  in album: Inger
    type: MusicAlbum
    date published: 2022-09-28
  isrc code: JPPC02211902
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:55:52+00:00

インゲル
type: MusicAlbum
date published: 2022-09-28
track: インゲル
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197296
  explicit: false
  by artist: Chogakusei
  in album: インゲル
    type: MusicAlbum
    date published: 2022-09-28
  isrc code: JPPC02211902
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:55:52+00:00

Psycho
type: MusicAlbum
date published: 2022-10-12
track: Psycho
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236533
  explicit: false
  by artist: Chogakusei
  in album: Psycho
    type: MusicAlbum
    date published: 2022-10-12

サイコ
type: MusicAlbum
date published: 2022-10-12
track: サイコ
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236533
  explicit: false
  by artist: Chogakusei
  in album: サイコ
    type: MusicAlbum
    date published: 2022-10-12

Did you see the sunrise?
type: MusicAlbum
date published: 2022-10-28
track: Did you see the sunrise?
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223200
  explicit: false
  by artist: Chogakusei
  in album: Did you see the sunrise?
    type: MusicAlbum
    date published: 2022-10-28

Did You See the Sunrise?
type: MusicAlbum
date published: 2022-10-28
track: Did You See the Sunrise?
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223200
  explicit: false
  by artist: Chogakusei
  in album: Did You See the Sunrise?
    type: MusicAlbum
    date published: 2022-10-28

Did You See the Sunrise?
type: MusicAlbum
date published: 2022-11-30
track: Did You See the Sunrise?
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223200
  explicit: false
  by artist: Chogakusei
  in album: Did You See the Sunrise?
    type: MusicAlbum
    date published: 2022-11-30
  isrc code: JPPC02212354
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt

Did You See the Sunrise?
type: MusicAlbum
date published: 2022-11-30
track: Did You See the Sunrise?
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223200
  explicit: false
  by artist: Chogakusei
  in album: Did You See the Sunrise?
    type: MusicAlbum
    date published: 2022-11-30
  isrc code: JPPC02212354
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T06:13:47+00:00

Let's go
type: MusicAlbum
date published: 2023-01-18
track: Let's go
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252949
  explicit: false
  by artist: Chogakusei
  in album: Let's go
    type: MusicAlbum
    date published: 2023-01-18

Let's Go
type: MusicAlbum
date published: 2023-01-18
track: Let's Go
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252949
  explicit: false
  by artist: Chogakusei
  in album: Let's Go
    type: MusicAlbum
    date published: 2023-01-18

超
type: MusicAlbum
date published: 2023-02-15
track: Fake Parade
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186159
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
track: Untouchable
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195726
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
track: インゲル
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196476
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02211902
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:55:52+00:00
track: Let's go
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252949
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213168
track: Give it to me
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199439
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213169
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T22:36:18+00:00
track: ガトリングアジテイタア
  type: MusicRecording
  duration: PT3M29S
  duration ms: 209206
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213170
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T22:17:39+00:00
track: Did you see the sunrise?
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221256
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15
track: サイコ
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237910
  explicit: false
  by artist: Chogakusei
  in album: 超
    type: MusicAlbum
    date published: 2023-02-15

Cho
type: MusicAlbum
date published: 2023-02-15
track: Fake Parade
  type: MusicRecording
  duration: PT3M6S
  duration ms: 186159
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
track: Untouchable
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195726
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02210972
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-28T19:58:24+00:00
track: Inger
  type: MusicRecording
  duration: PT3M16S
  duration ms: 196476
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02211902
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T21:55:52+00:00
track: Let's Go
  type: MusicRecording
  duration: PT4M12S
  duration ms: 252949
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213168
track: Give It to Me
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199439
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213169
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-02T22:36:18+00:00
track: Gatling Agitator
  type: MusicRecording
  duration: PT3M29S
  duration ms: 209206
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
  isrc code: JPPC02213170
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
track: Did You See the Sunrise?
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221256
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15
track: Psycho
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237910
  explicit: false
  by artist: Chogakusei
  in album: Cho
    type: MusicAlbum
    date published: 2023-02-15

Space Cat Big Bang
type: MusicAlbum
date published: 2023-04-07
track: Space Cat Big Bang
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214369
  explicit: false
  by artist: Chogakusei
  in album: Space Cat Big Bang
    type: MusicAlbum
    date published: 2023-04-07
  isrc code: JPPC02310010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-14T19:52:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x453ab0d959056fb476f116d6656adce05d4eb0d1eded5e01a06a0e71b4da8bb5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958060
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958060
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPC02310010
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-14T20:39:42Z
  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
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Phantom
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His
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超獣戯画
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Choju Giga
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Abyss-Over
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MAR6LE
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Konton Boogie
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混沌ブギ
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Brain Revolution Girl
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Bug
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バグ
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Love me, Love me, Love me
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愛して愛して愛して
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脳内革命ガール
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Hazure
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Hazure
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Killer Tuner
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キラーチューナー
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エウレカレプリカ
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ラヴィ
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Medicine
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イガク
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モエチャッカファイア
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Eureka Replica
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Lavie
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MoeChakkaFire
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pa pa pa
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pa pa pa
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I Love Internet
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アイラブインターネット
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しゅきしゅきメイドマスカレイド
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Syuki Syuki Maid Masquerade
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阿弥陀籤
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AMIDAKUJI
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Amphitheater
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アンフィテアトルム
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track: キラーチューナー
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  duration: PT2M25S
  duration ms: 145773
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: CGS
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142220
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: ファンデモーニカ
  type: MusicRecording
  duration: PT3M22S
  duration ms: 202424
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: Hazure
  type: MusicRecording
  duration: PT3M17S
  duration ms: 197562
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: しゅきしゅきメイドマスカレイド
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207304
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: レベチ
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212638
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29
track: アイラブインターネット
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149881
  explicit: false
  by artist: Chogakusei
  in album: アンフィテアトルム
    type: MusicAlbum
    date published: 2025-10-29

HIDE & SEEK
type: MusicAlbum
date published: 2025-11-05
track: HIDE & SEEK
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226628
  explicit: false
  by artist: Chogakusei
  in album: HIDE & SEEK
    type: MusicAlbum
    date published: 2025-11-05

HIDE & SEEK
type: MusicAlbum
date published: 2025-11-05
track: HIDE & SEEK
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226628
  explicit: false
  by artist: Chogakusei
  in album: HIDE & SEEK
    type: MusicAlbum
    date published: 2025-11-05

Okuriuta
type: MusicRecording
duration: PT2M8S
duration ms: 128440
explicit: false
by artist: Wolpis Carter
by artist: Chogakusei
in album: Yozai
  type: MusicAlbum
  date published: 2024-04-10
isrc code: JPCO02405250
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T17:21:27+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x469ba45f522d0565180d352148efef82c26b8bf6f000342a4dff6fbd5df97b20
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02405250
additional property: OTSTimestamp
  type: PropertyValue
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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 0x469ba45f522d0565180d352148efef82c26b8bf6f000342a4dff6fbd5df97b20. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02405250.
  date published: 2026-07-02T03:55:08Z

Musication
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duration: PT1M30S
duration ms: 90434
explicit: false
by artist: HoYoFair
by artist: Chogakusei
by artist: Amatsuki
by artist: Kuroneko
in album: Teyvat Film Festival: Genshin Impact HoYoFair Music Selection
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  date published: 2024-04-28
isrc code: QZK6Q2490799
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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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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6Q2490799
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x8d6b50e0632c23a9d36adbbb49b5347a63e2dac67a455a0b8b1ca047e5f54e7e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6Q2490799.
  date published: 2026-06-13T13:32:09Z

Aruba
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duration: PT3M5S
duration ms: 185706
explicit: false
by artist: Gero
by artist: Chogakusei
by artist: 柊キライ
in album: THE ORIGIN
  type: MusicAlbum
  date published: 2023-09-20
isrc code: JPPI02302450
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-20T03:09:49+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xa350caf950fc34fd89da16768d4f7286b59d420edbe9bd10aa15a7f6c3c2663b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02302450
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0xa350caf950fc34fd89da16768d4f7286b59d420edbe9bd10aa15a7f6c3c2663b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI02302450.
  date published: 2026-07-02T03:55:08Z

Applaud our life
type: MusicRecording
duration: PT4M54S
duration ms: 294179
explicit: false
by artist: CHAN-GERO SONIC
by artist: Gero
by artist: ARAKI
by artist: +α/Alfakyun.
by artist: un:c
by artist: __ (Underbar)
by artist: clear
by artist: NERO
by artist: Glutamine
by artist: Kouhey
by artist: ASK
by artist: Kogeinu
by artist: that
by artist: Pokota
by artist: Yuge
by artist: Chogakusei
by artist: ChouCho
by artist: NANO
by artist: VALSHE
by artist: Piko
by artist: Asamaru
by artist: amu
by artist: Dasoku
by artist: michan
by artist: Maria
by artist: YURiCa/Hanatan
by artist: Rapbit
by artist: luz
in album: Applaud our life
  type: MusicAlbum
  date published: 2022-11-27
isrc code: TCJPT2248672
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T01:14:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block/956312
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2248672
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T05:09:12Z
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 0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCJPT2248672.
  date published: 2026-07-02T05:09:12Z