Una Otomachi
type: MusicGroup
genre: vocaloid
popularity: 25
followers: 6520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7796d34bc30b1c715345df7ef43bd984d185f192fc0cd9c379fd1e4258420c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e88c9e1-4585-482e-b449-8bede202aff8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8e88c9e1-4585-482e-b449-8bede202aff8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8e88c9e1-4585-482e-b449-8bede202aff8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7796d34bc30b1c715345df7ef43bd984d185f192fc0cd9c379fd1e4258420c7. 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/8e88c9e1-4585-482e-b449-8bede202aff8.json and https://artists.proofprofile.net/proofs/artist/8e88c9e1-4585-482e-b449-8bede202aff8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc7796d34bc30b1c715345df7ef43bd984d185f192fc0cd9c379fd1e4258420c7","name":"Una Otomachi","registered_at":"2026-06-12T04:12:47Z","symbol":"NIM0183324","token_address":"0x0167884939296e2e6ffbaa33f4f8258939f2166f","type":"artist","uuid":"8e88c9e1-4585-482e-b449-8bede202aff8"}
album: shinryaku shita alien
  type: MusicAlbum
  date published: 2018-06-27
album: 侵略↓えいりあん
  type: MusicAlbum
  date published: 2018-06-27
album: comix unacode
  type: MusicAlbum
  date published: 2018-08-01
album: comix unacode
  type: MusicAlbum
  date published: 2018-08-01
album: デネブ
  type: MusicAlbum
  date published: 2018-11-04
album: ノア (ROUTE NOAH)
  type: MusicAlbum
  date published: 2019-02-07
album: 夢の中はパレード
  type: MusicAlbum
  date published: 2019-06-10
album: 悲しいLove Song
  type: MusicAlbum
  date published: 2019-07-24
album: School of Rock'n Roll〜すべてキミ次第〜
  type: MusicAlbum
  date published: 2019-07-24
album: 傍若無人
  type: MusicAlbum
  date published: 2019-07-24
album: 夏休み
  type: MusicAlbum
  date published: 2019-07-24
album: ネオン街の蝶
  type: MusicAlbum
  date published: 2019-07-24
album: Children Smile
  type: MusicAlbum
  date published: 2019-07-24
album: ウ・ワ・キ・モ・ノ
  type: MusicAlbum
  date published: 2019-07-24
album: 音街ウナ/ Hidetaka Suga
  type: MusicAlbum
  date published: 2019-07-24
album: 音街ウナ/ Hidetaka Suga
  type: MusicAlbum
  date published: 2019-07-24
album: 別れてスッキリ
  type: MusicAlbum
  date published: 2019-07-24
album: 雪解けと共に
  type: MusicAlbum
  date published: 2020-03-04
album: Aoki in the afternoon
  type: MusicAlbum
  date published: 2020-04-01
album: 午後の葵木
  type: MusicAlbum
  date published: 2020-04-01
  track: 雨を待つ。
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201333
    explicit: false
    by artist: Una Otomachi
    in album: 午後の葵木
      type: MusicAlbum
      date published: 2020-04-01
    genre: vocaloid
    isrc code: TCJPK2081445
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:13:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2081445
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T19:27:18Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a27860611c90de973b6ae5931f6561b40a7623df5dea7a6c6aa22e9ca9b2ca. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/TCJPK2081445.
      date published: 2026-07-19T19:27:18Z
    audio: 雨を待つ。
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.114
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.49
      additional property: Energy
        type: PropertyValue
        value: 0.955
      additional property: Speechiness
        type: PropertyValue
        value: 0.184
      additional property: Acousticness
        type: PropertyValue
        value: 0.402
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.624
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.821
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.993
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: 才能なんか
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250666
    explicit: false
    by artist: Una Otomachi
    in album: 午後の葵木
      type: MusicAlbum
      date published: 2020-04-01
    genre: vocaloid
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:51:59+00:00
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 才能なんか
  track: シンガーソングライター
  track: 生きるってなんだよ
album: sonicboom ga kikoetara
album: ソニックブームがきこえたら
album: ふとん
album: futon
album: なべなべボタン製作所
album: 何処かの知らない遠くの街へ (音街ウナ & Neoromancia ver.)
album: 何処かの知らない遠くの街へ
album: Somewhere So Far Away (Una Otomachi & Neoromancia Ver.)
album: 放課後アイスクリーム
album: 暇・ヒマ・HIMA
album: 東京の月
album: オーロラドリームマジック
album: décadence
album: デカダンス
album: Shooting Star
album: I think about the summer.
album: 夏の終わりに。
album: サディスティックマインド
album: Sadistic Mind
album: Why am I alive?
album: 遺書を書くつもりでした。
album: 裏BEGINNING~０~
album: BerryParadise
album: Ai
album: うそつきこむし
album: 愛それとも恋
album: HYPERPOP!
album: 人生カウント
album: 21歳の約束
album: JINSEI COUNT
album: LIKE A FEELING FIRST PAIN
album: さようならは始まり
album: waves
album: Chiu-Chiu
album: 夏夏恋恋
album: Subculture syndrome
album: Elimination Method
album: My@berry
album: Fortune Songwriter
album: グエー死んだンゴ
album: Gue Sinndanngo
album: Room Akashic
album: ルームアカシック
album: over

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xe168b8fd1353a98ac4016eda14e5dca99df620c375060ae7ce9b2ecac5ce733f

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958083

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958083

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2081447

OTSTimestamp
type: PropertyValue
value: 2026-07-15T01:50:31Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe168b8fd1353a98ac4016eda14e5dca99df620c375060ae7ce9b2ecac5ce733f. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/TCJPK2081447.
date published: 2026-07-15T01:50:31Z

才能なんか
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 90.051
additional property: Musical Key
  type: PropertyValue
  value: 3
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.581
additional property: Energy
  type: PropertyValue
  value: 0.793
additional property: Speechiness
  type: PropertyValue
  value: 0.054
additional property: Acousticness
  type: PropertyValue
  value: 0.376
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.072
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.903
additional property: Loudness (dB)
  type: PropertyValue
  value: -2.569
additional property: Key Name
  type: PropertyValue
  value: Eb
additional property: Mode Name
  type: PropertyValue
  value: Major

シンガーソングライター
type: MusicRecording
duration: PT5M16S
duration ms: 316000
explicit: false
by artist: Una Otomachi
in album: 午後の葵木
  type: MusicAlbum
  date published: 2020-04-01
genre: vocaloid
isrc code: TCJPK2081448
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T18:10:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xabc0bb4bd3818f625d0df685e05bfc94133e94fdc0acf0d1b97bd0f952c252ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2081448
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc0bb4bd3818f625d0df685e05bfc94133e94fdc0acf0d1b97bd0f952c252ac. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPK2081448.
  date published: 2026-07-05T19:27:56Z
audio: シンガーソングライター
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 179.976
  additional property: Musical Key
    type: PropertyValue
    value: 9
  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: 0.495
  additional property: Energy
    type: PropertyValue
    value: 0.848
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.239
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
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    type: PropertyValue
    value: -2.754
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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生きるってなんだよ
type: MusicRecording
duration: PT4M3S
duration ms: 243934
explicit: false
by artist: Una Otomachi
in album: 午後の葵木
  type: MusicAlbum
  date published: 2020-04-01
genre: vocaloid
isrc code: TCJPK2081449
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T03:08:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0bb17f1daaa9eb17e318ff018caff04f5307a60333d8adeedd4555a2d3836dd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958234
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958234
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2081449
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T03:46:09Z
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bb17f1daaa9eb17e318ff018caff04f5307a60333d8adeedd4555a2d3836dd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCJPK2081449.
  date published: 2026-07-16T03:46:09Z
audio: 生きるってなんだよ
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  additional property: Tempo (BPM)
    type: PropertyValue
    value: 183.003
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.49
  additional property: Energy
    type: PropertyValue
    value: 0.908
  additional property: Speechiness
    type: PropertyValue
    value: 0.082
  additional property: Acousticness
    type: PropertyValue
    value: 0.258
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.934
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.804
  additional property: Key Name
    type: PropertyValue
    value: C#
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sonicboom ga kikoetara
type: MusicAlbum
date published: 2020-05-10

ソニックブームがきこえたら
type: MusicAlbum
date published: 2020-05-10

ふとん
type: MusicAlbum
date published: 2020-05-11

futon
type: MusicAlbum
date published: 2020-05-11

なべなべボタン製作所
type: MusicAlbum
date published: 2020-05-17

何処かの知らない遠くの街へ (音街ウナ & Neoromancia ver.)
type: MusicAlbum
date published: 2021-03-10

何処かの知らない遠くの街へ
type: MusicAlbum
date published: 2021-03-10

Somewhere So Far Away (Una Otomachi & Neoromancia Ver.)
type: MusicAlbum
date published: 2021-03-10

放課後アイスクリーム
type: MusicAlbum
date published: 2021-04-08

暇・ヒマ・HIMA
type: MusicAlbum
date published: 2021-04-19

東京の月
type: MusicAlbum
date published: 2021-04-23

オーロラドリームマジック
type: MusicAlbum
date published: 2021-05-20

décadence
type: MusicAlbum
date published: 2021-07-26

デカダンス
type: MusicAlbum
date published: 2021-07-26

Shooting Star
type: MusicAlbum
date published: 2021-07-29

Shooting Star
type: MusicAlbum
date published: 2021-07-29

I think about the summer.
type: MusicAlbum
date published: 2021-09-05

夏の終わりに。
type: MusicAlbum
date published: 2021-09-05

サディスティックマインド
type: MusicAlbum
date published: 2021-11-20

Sadistic Mind
type: MusicAlbum
date published: 2021-11-20

Why am I alive?
type: MusicAlbum
date published: 2021-12-10

遺書を書くつもりでした。
type: MusicAlbum
date published: 2021-12-10

裏BEGINNING~０~
type: MusicAlbum
date published: 2022-01-22

BerryParadise
type: MusicAlbum
date published: 2022-02-08

Ai
type: MusicAlbum
date published: 2022-02-17

うそつきこむし
type: MusicAlbum
date published: 2022-02-25

愛それとも恋
type: MusicAlbum
date published: 2022-02-25

HYPERPOP!
type: MusicAlbum
date published: 2022-05-08

人生カウント
type: MusicAlbum
date published: 2022-05-11

21歳の約束
type: MusicAlbum
date published: 2022-05-11

JINSEI COUNT
type: MusicAlbum
date published: 2022-05-11

LIKE A FEELING FIRST PAIN
type: MusicAlbum
date published: 2022-06-03

さようならは始まり
type: MusicAlbum
date published: 2022-08-13

waves
type: MusicAlbum
date published: 2023-05-11

Chiu-Chiu
type: MusicAlbum
date published: 2023-05-20

夏夏恋恋
type: MusicAlbum
date published: 2024-01-04

Subculture syndrome
type: MusicAlbum
date published: 2024-02-24

Elimination Method
type: MusicAlbum
date published: 2024-05-01

My@berry
type: MusicAlbum
date published: 2024-05-11

Fortune Songwriter
type: MusicAlbum
date published: 2024-09-14

グエー死んだンゴ
type: MusicAlbum
date published: 2024-11-10
track: グエー死んだンゴ
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