Losstime Life
type: MusicGroup
genre: vocaloid
popularity: 32
followers: 10269
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe9242dcf7035d64a67dfa5f9b40cce821dce0e1a5f28eb74b31aab31da54d2e
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/d6b39820-2521-4bdb-8d4f-63dff2dcb03f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6b39820-2521-4bdb-8d4f-63dff2dcb03f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6b39820-2521-4bdb-8d4f-63dff2dcb03f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe9242dcf7035d64a67dfa5f9b40cce821dce0e1a5f28eb74b31aab31da54d2e","name":"Losstime Life","registered_at":"2026-06-12T10:58:50Z","symbol":"NIM0277151","token_address":"0x9941041475ebfbfd8c6e11067dbe64075396ad12","type":"artist","uuid":"d6b39820-2521-4bdb-8d4f-63dff2dcb03f"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9242dcf7035d64a67dfa5f9b40cce821dce0e1a5f28eb74b31aab31da54d2e. 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/d6b39820-2521-4bdb-8d4f-63dff2dcb03f.json and https://artists.proofprofile.net/proofs/artist/d6b39820-2521-4bdb-8d4f-63dff2dcb03f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xbe9242dcf7035d64a67dfa5f9b40cce821dce0e1a5f28eb74b31aab31da54d2e","name":"Losstime Life","registered_at":"2026-06-12T10:58:50Z","symbol":"NIM0277151","token_address":"0x9941041475ebfbfd8c6e11067dbe64075396ad12","type":"artist","uuid":"d6b39820-2521-4bdb-8d4f-63dff2dcb03f"}
album: 不老不死
  type: MusicAlbum
  date published: 2014
album: 意志と死と詩
  type: MusicAlbum
  date published: 2018
  track: 上演二十四時間
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248399
    explicit: false
    by artist: Losstime Life
    in album: 意志と死と詩
      type: MusicAlbum
      date published: 2018
    genre: vocaloid
    isrc code: CAGOO1855641
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T11:37:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x390f1025049d06b5eadbd40c36323cd5c451ae1e57b0324d09ba11bf0b2dc939
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958157
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958157
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1855641
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:38:57Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390f1025049d06b5eadbd40c36323cd5c451ae1e57b0324d09ba11bf0b2dc939. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:38:57Z), 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/CAGOO1855641.
      date published: 2026-07-15T14:38:57Z
    audio: 上演二十四時間
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.951
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.294
      additional property: Energy
        type: PropertyValue
        value: 0.977
      additional property: Speechiness
        type: PropertyValue
        value: 0.143
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.213
      additional property: Liveness
        type: PropertyValue
        value: 0.314
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.493
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.847
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: リリカルステードレイト
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212280
    explicit: false
    by artist: Losstime Life
    in album: 意志と死と詩
      type: MusicAlbum
      date published: 2018
    genre: vocaloid
    isrc code: CAGOO1855640
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958153
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958153
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1855640
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:21:06Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2134da08ad8b49f8e071ef83d7fbb3f736c12850a2e70736a4c8b8d8abde60b3. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:21:06Z), 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/CAGOO1855640.
      date published: 2026-07-15T14:21:06Z
    audio: リリカルステードレイト
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.958
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.63
      additional property: Energy
        type: PropertyValue
        value: 0.887
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Electric Heart
  track: NexTop
album: 巷で噂のパーティーポイズン
album: Append
album: 愛の歌
album: 恋心Sweet
album: ホーリーナイトクリスマス
album: タイフーンパレード
album: 八雲
album: flavor
album: Flavor
album: Success!
album: シェイクスピアの誘惑
album: 流星コネクト(2023バージョン)
album: 流星コネクト
album: 手招く未来の消去法
album: Torch lighter
album: First Lighter
album: Se Mondo
album: Wenn welt
album: ノルカソルカ
album: 1%の革命前夜
album: 1% Eve of the Revolution
album: Time of Life
album: 夏、目前のちょこみんちゅ論争
album: 一年に一度のいちごふぇすてぃばる
album: Cafe Au Lait - Choco Mint Version
album: Cafe Au Lait - Strawberry Version
album: Orange (Strawberry Version)
album: Orange (Choco Mint Version)
album: Illumi Na Showcase
album: Say!Say!Do!Do!
album: BA
album: ダレモシラナイ
album: 楽園
album: 裸足の私
album: Assassin girl
album: Holy and Bright
album: Losstime Life season1
album: アンチテーゼ
album: Hello Win!
album: Aoi Ringo
album: アオイリンゴ
album: Laundry
album: INSOMNIA
album: アカイユビサキ
album: Red Nails
album: The Moon's Whereabouts and Your Song
album: 月の行方ときみの歌
album: Life on wave
album: One More Time!
album: いろはにほへと
album: Irohani

Valence (Positivity)
type: PropertyValue
value: 0.88

Loudness (dB)
type: PropertyValue
value: -4.671

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Electric Heart
type: MusicRecording
duration: PT5M57S
duration ms: 357106
explicit: false
by artist: Losstime Life
in album: 意志と死と詩
  type: MusicAlbum
  date published: 2018
genre: vocaloid
isrc code: CAGOO1855639
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T11:31:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4707e631c7c83bc6b2553e7bb0975e4dc7ef568a6c82157e0701a8648183d09
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959002
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959002
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1855639
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T11:47:29Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4707e631c7c83bc6b2553e7bb0975e4dc7ef568a6c82157e0701a8648183d09. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/CAGOO1855639.
  date published: 2026-07-21T11:47:29Z
audio: Electric Heart
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.007
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.516
  additional property: Energy
    type: PropertyValue
    value: 0.894
  additional property: Speechiness
    type: PropertyValue
    value: 0.064
  additional property: Acousticness
    type: PropertyValue
    value: 0.008
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.242
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.507
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.172
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

NexTop
type: MusicRecording
duration: PT6M4S
duration ms: 364427
explicit: false
by artist: Losstime Life
in album: 意志と死と詩
  type: MusicAlbum
  date published: 2018
genre: vocaloid
isrc code: CAGOO1855636
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T14:11:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0219bdc0b413493ef0cdfa0c7583dc7d2311cba00ec38e3ee28fd2fc75482b5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1855636
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0219bdc0b413493ef0cdfa0c7583dc7d2311cba00ec38e3ee28fd2fc75482b5a. 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/CAGOO1855636.
  date published: 2026-07-05T01:12:41Z
audio: NexTop
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.965
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.582
  additional property: Energy
    type: PropertyValue
    value: 0.479
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.888
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.006
  additional property: Liveness
    type: PropertyValue
    value: 0.364
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.629
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.647
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

巷で噂のパーティーポイズン
type: MusicAlbum
date published: 2018-10-24

Append
type: MusicAlbum
date published: 2019-03-08

愛の歌
type: MusicAlbum
date published: 2019-03-15
track: 愛の歌
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221333
  explicit: false
  by artist: Losstime Life
  in album: 愛の歌
    type: MusicAlbum
    date published: 2019-03-15
  genre: vocaloid
  isrc code: CACWV1973340
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T13:55:50+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa0f228de93817551e877610ae7a41415a260d8e7e9be952dceb8c7417d5db620
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959024
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959024
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CACWV1973340
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T16:57:30Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0f228de93817551e877610ae7a41415a260d8e7e9be952dceb8c7417d5db620. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:57:30Z), 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/CACWV1973340.
    date published: 2026-07-21T16:57:30Z
  audio: 愛の歌
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.661
    additional property: Energy
      type: PropertyValue
      value: 0.652
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.5
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.371
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.651
    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
      type: PropertyValue
      value: Major

恋心Sweet
type: MusicAlbum
date published: 2019-03-15

ホーリーナイトクリスマス
type: MusicAlbum
date published: 2019-03-22

タイフーンパレード
type: MusicAlbum
date published: 2019-03-29

八雲
type: MusicAlbum
date published: 2019-04-19
track: 八雲
  type: MusicRecording
  duration: PT5M0S
  duration ms: 300985
  explicit: false
  by artist: Losstime Life
  in album: 八雲
    type: MusicAlbum
    date published: 2019-04-19
  genre: vocaloid
  isrc code: CAENV1949872
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T17:03:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x85a1149bcf95a29ff0521bccd134d4f5f6c36f4fe9823c05b654f6486fcdcf61
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a1149bcf95a29ff0521bccd134d4f5f6c36f4fe9823c05b654f6486fcdcf61. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:47Z), 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/CAENV1949872.
    date published: 2026-07-19T20:04:47Z
  audio: 八雲
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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flavor
type: MusicAlbum
date published: 2019-05-09

Flavor
type: MusicAlbum
date published: 2019-05-09

Success!
type: MusicAlbum
date published: 2019-08-01

シェイクスピアの誘惑
type: MusicAlbum
date published: 2019-08-02
track: シェイクスピアの誘惑
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  duration: PT3M46S
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  explicit: false
  by artist: Losstime Life
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    date published: 2019-08-02
  genre: vocaloid
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  additional property: CopyrightStatus
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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-height/956560
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO1974361
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T23:28:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3666887a6ca462de0721186611c776c1f76b8e1ff77c35791adb0be496847fc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/CAGOO1974361.
    date published: 2026-07-03T23:28:02Z
  audio: シェイクスピアの誘惑
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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流星コネクト(2023バージョン)
type: MusicAlbum
date published: 2019-09-12

流星コネクト
type: MusicAlbum
date published: 2019-09-12

手招く未来の消去法
type: MusicAlbum
date published: 2019-11-12
track: ハレルヤ・ネットワーク
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  duration: PT4M7S
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  explicit: false
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    date published: 2019-11-12
  genre: vocaloid
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692fcbd711e6f0bfdf8b7568e4d5b662b0809191ea08d93d55e734019d881686. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:32:34Z), 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/CAHQJ1974516.
    date published: 2026-07-20T09:32:34Z
  audio: ハレルヤ・ネットワーク
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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Torch lighter
type: MusicAlbum
date published: 2019-11-28

First Lighter
type: MusicAlbum
date published: 2020-02-16

Se Mondo
type: MusicAlbum
date published: 2020-02-25

Wenn welt
type: MusicAlbum
date published: 2020-03-01

Wenn welt
type: MusicAlbum
date published: 2020-03-01

Wenn welt
type: MusicAlbum
date published: 2020-05-04

ノルカソルカ
type: MusicAlbum
date published: 2020-07-07

1%の革命前夜
type: MusicAlbum
date published: 2020-12-15
track: バランスボール・エブリデイ
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    date published: 2020-12-15
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8742d14d75862e2cf6f83b500d90fe75e7d4a44842e30026e2eb2906a875a833. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPM2084321.
    date published: 2026-07-03T08:56:35Z
  audio: バランスボール・エブリデイ
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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1% Eve of the Revolution
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date published: 2020-12-15

Time of Life
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date published: 2021-06-23

夏、目前のちょこみんちゅ論争
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date published: 2021-07-20
track: 夏、目前のちょこみんちゅ論争
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717b9dcbcf30a567becaf5fa85be8655ade31ad1f4219b7f64405067ef0ef474. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAENV2195493.
    date published: 2026-07-04T11:19:20Z
  audio: 夏、目前のちょこみんちゅ論争
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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一年に一度のいちごふぇすてぃばる
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date published: 2021-08-04

Cafe Au Lait - Choco Mint Version
type: MusicAlbum
date published: 2021-08-11

Cafe Au Lait - Strawberry Version
type: MusicAlbum
date published: 2021-08-18

Orange (Strawberry Version)
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date published: 2021-08-25
track: Orange (Strawberry Version)
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5a13f6148fb3ebf9f91ebda99a3566fcc1899643b823f80c219f62b55c5c0c. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:32:30Z), 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/CAGOO2102169.
    date published: 2026-07-20T17:32:30Z
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    additional property: Danceability
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Orange (Choco Mint Version)
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date published: 2021-09-01

Illumi Na Showcase
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date published: 2021-12-23

Say!Say!Do!Do!
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date published: 2022-02-08

BA
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date published: 2022-07-01

ダレモシラナイ
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date published: 2022-07-01

楽園
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date published: 2022-07-02

裸足の私
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date published: 2022-09-24

Assassin girl
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Assassin girl
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date published: 2022-11-01

Holy and Bright
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date published: 2022-12-26

Losstime Life season1
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T05:45:43Z
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Losstime Life season1
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アンチテーゼ
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Hello Win!
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Aoi Ringo
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アオイリンゴ
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Laundry
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INSOMNIA
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アカイユビサキ
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Red Nails
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The Moon's Whereabouts and Your Song
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date published: 2024-11-15

月の行方ときみの歌
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date published: 2024-11-15

Life on wave
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Life on wave
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date published: 2024-11-16

One More Time!
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いろはにほへと
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date published: 2025-07-19

Irohani
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date published: 2025-07-19