はるな。
type: MusicGroup
genre: vocaloid
popularity: 28
followers: 12069
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc19a7a05919de44e5841f385022cd3f054d4ee00270af2ee5478b5d11254f941
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/01978703-d934-4add-88db-363d6cca6e23.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/01978703-d934-4add-88db-363d6cca6e23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/01978703-d934-4add-88db-363d6cca6e23
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19a7a05919de44e5841f385022cd3f054d4ee00270af2ee5478b5d11254f941. 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/01978703-d934-4add-88db-363d6cca6e23.json and https://artists.proofprofile.net/proofs/artist/01978703-d934-4add-88db-363d6cca6e23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc19a7a05919de44e5841f385022cd3f054d4ee00270af2ee5478b5d11254f941","name":"はるな。","registered_at":"2026-06-12T14:53:05Z","symbol":"NIM0002556","token_address":"0x890f95b9c7d2249174c4a75b36a089ac82872b68","type":"artist","uuid":"01978703-d934-4add-88db-363d6cca6e23"}
album: 曖昧アイロニー (Demo)
  type: MusicAlbum
  date published: 2021-06-09
album: 曖昧アイロニー
  type: MusicAlbum
  date published: 2021-06-23
album: 今からここを飛び降りるんだからさ
  type: MusicAlbum
  date published: 2022-01-22
album: メイドインベイビー
  type: MusicAlbum
  date published: 2022-01-30
album: 未来創造日記
  type: MusicAlbum
  date published: 2022-04-16
album: セイレイトシ
  type: MusicAlbum
  date published: 2022-06-01
album: 曖昧アイロニー
  type: MusicAlbum
  date published: 2022-06-01
  track: 曖昧アイロニー
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170809
    explicit: false
    by artist: はるな。
    in album: 曖昧アイロニー
      type: MusicAlbum
      date published: 2022-06-01
    genre: vocaloid
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3be145ec20a40ce40f7dbe65b50611e500e5491ba9fc53189227a60475cf0396
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX562200439
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x3be145ec20a40ce40f7dbe65b50611e500e5491ba9fc53189227a60475cf0396. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPX562200439.
      date published: 2026-07-06T01:25:57Z
    audio: 曖昧アイロニー
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      additional property: Tempo (BPM)
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        value: 130.072
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
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        type: PropertyValue
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      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
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      additional property: Mode Name
        type: PropertyValue
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album: さようならとまたね
  type: MusicAlbum
  date published: 2022-06-01
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    type: MusicRecording
    duration: PT0M57S
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    explicit: false
    by artist: はるな。
    in album: さようならとまたね
      type: MusicAlbum
      date published: 2022-06-01
    genre: vocaloid
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2aef67e3b696a1b80d7414d1d982f60d7ee3392eedeed87836834af509032bab
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957834
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPX562200436
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T09:42:16Z
    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 0x2aef67e3b696a1b80d7414d1d982f60d7ee3392eedeed87836834af509032bab. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/JPX562200436.
      date published: 2026-07-13T09:42:16Z
    audio: さようならとまたね
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 少女なので、いまだに
album: ここから君を追いかけたとして
album: 猫と少女の物語
album: ウォーターミライザー
album: コイゴコローディング
album: 街灯溶ける夜
album: 君夏自由日記
album: 生きてた頃に戻れたらさ
album: 世界が終わる少し前の
album: 独暑感想文
album: 凪
album: さよなら以外のお別れをしよう。
album: カリスマ性を感じた
album: 週末逃避行
album: 未来創造日記 (8bit Ver.)
album: 夏を綴る
album: 心に余裕が無いからさ
album: 命たゆたう
album: 青天イコライザ
album: 未来創造日記 (self cover)
album: 藍色にアイロニ
album: 青春なんて嘘つきだ (self cover)
album: 青春なんて嘘つきだ
album: 空中クオンタイズ
album: 街灯溶ける夜 (self cover)
album: 生きたくないし死にたくない
album: あっち向いて来世 feat. にんじん
album: 夏空自由帳 １ページ目
album: とか。 (feat. さすていん)
album: 過去回想日記
album: 死望理由。
album: 過去回想日記 (self cover)
album: 空想快晴理論
album: 空を舞う
album: 真っ逆さまサマー
album: 夏風とステップ (feat. 初音ミク)
album: 余命二年
album: 某日逃避記録
album: ice×ice
album: し
album: 幽霊になった日
album: 432番
album: 人生がうまくいってないからさ
album: 人生がうまくいってないからさ (self cover)
album: あたしとベランダ (self cover)
album: あたしとベランダ
album: 才能なんてもってないねん
album: 才能なんてもってないねん (self cover)
album: だめだめ天使ちゃん
album: 幸不幸
album: 命日
album: それでいいんです
album: はるな。自分で歌いました その１ (self cover)
album: 夏空自由帳 ２ページ目
album: 邦ロックを聴かないあの子はいつも愛を歌う
album: 日直かわちいちゃん

Danceability
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value: 0.626

Energy
type: PropertyValue
value: 0.572

Speechiness
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value: 0.034

Acousticness
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value: 0.783

Instrumentalness
type: PropertyValue
value: 0.826

Liveness
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value: 0.148

Valence (Positivity)
type: PropertyValue
value: 0.792

Loudness (dB)
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value: -9.394

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

少女なので、いまだに
type: MusicAlbum
date published: 2022-06-01

ここから君を追いかけたとして
type: MusicAlbum
date published: 2022-06-01

猫と少女の物語
type: MusicAlbum
date published: 2022-06-01

ウォーターミライザー
type: MusicAlbum
date published: 2022-06-01

コイゴコローディング
type: MusicAlbum
date published: 2022-06-01

街灯溶ける夜
type: MusicAlbum
date published: 2022-06-18

君夏自由日記
type: MusicAlbum
date published: 2022-07-23

生きてた頃に戻れたらさ
type: MusicAlbum
date published: 2022-08-27

世界が終わる少し前の
type: MusicAlbum
date published: 2022-09-03

独暑感想文
type: MusicAlbum
date published: 2022-09-24
track: 独暑感想文
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178104
  explicit: false
  by artist: はるな。
  in album: 独暑感想文
    type: MusicAlbum
    date published: 2022-09-24
  genre: vocaloid
  isrc code: TCJPS2298361
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T22:34:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4795c333ebb4637f84b0214d3575cf23974449e7e92a6a380376598f3e416daf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958793
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958793
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2298361
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T01:35:59Z
  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 0x4795c333ebb4637f84b0214d3575cf23974449e7e92a6a380376598f3e416daf. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:35:59Z), 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/TCJPS2298361.
    date published: 2026-07-20T01:35:59Z
  audio: 独暑感想文
    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
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
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凪
type: MusicAlbum
date published: 2022-10-07

さよなら以外のお別れをしよう。
type: MusicAlbum
date published: 2022-10-23

カリスマ性を感じた
type: MusicAlbum
date published: 2022-11-20

週末逃避行
type: MusicAlbum
date published: 2022-11-25

未来創造日記 (8bit Ver.)
type: MusicAlbum
date published: 2022-12-09

夏を綴る
type: MusicAlbum
date published: 2022-12-18

心に余裕が無いからさ
type: MusicAlbum
date published: 2023-01-15

命たゆたう
type: MusicAlbum
date published: 2023-01-25

青天イコライザ
type: MusicAlbum
date published: 2023-02-20

未来創造日記 (self cover)
type: MusicAlbum
date published: 2023-02-26

藍色にアイロニ
type: MusicAlbum
date published: 2023-03-05

青春なんて嘘つきだ (self cover)
type: MusicAlbum
date published: 2023-03-12

青春なんて嘘つきだ
type: MusicAlbum
date published: 2023-03-12

空中クオンタイズ
type: MusicAlbum
date published: 2023-03-20

街灯溶ける夜 (self cover)
type: MusicAlbum
date published: 2023-04-14

生きたくないし死にたくない
type: MusicAlbum
date published: 2023-04-16

あっち向いて来世 feat. にんじん
type: MusicAlbum
date published: 2023-05-10

夏空自由帳 １ページ目
type: MusicAlbum
date published: 2023-05-19

とか。 (feat. さすていん)
type: MusicAlbum
date published: 2023-06-11

過去回想日記
type: MusicAlbum
date published: 2023-06-11

死望理由。
type: MusicAlbum
date published: 2023-06-25
track: 死望理由。
  type: MusicRecording
  duration: PT3M27S
  duration ms: 207340
  explicit: false
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  in album: 死望理由。
    type: MusicAlbum
    date published: 2023-06-25
  genre: vocaloid
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T09:22:02+00:00
  additional property: CopyrightChainExplorerURL
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block-height/958390
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2351553
  additional property: OTSTimestamp
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    value: 2026-07-17T09:35:49Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0xa5db7a2af13b78eef5d143530c5a3a7dcd8dd82f65ca8e292bb6c27061940dae. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2351553.
    date published: 2026-07-17T09:35:49Z
  audio: 死望理由。
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    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
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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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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過去回想日記 (self cover)
type: MusicAlbum
date published: 2023-06-26

空想快晴理論
type: MusicAlbum
date published: 2023-07-02

空を舞う
type: MusicAlbum
date published: 2023-07-03

真っ逆さまサマー
type: MusicAlbum
date published: 2023-07-03

夏風とステップ (feat. 初音ミク)
type: MusicAlbum
date published: 2023-07-16

余命二年
type: MusicAlbum
date published: 2023-07-23

某日逃避記録
type: MusicAlbum
date published: 2023-08-05

ice×ice
type: MusicAlbum
date published: 2023-08-17

し
type: MusicAlbum
date published: 2023-08-20
track: し
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152656
  explicit: false
  by artist: はるな。
  in album: し
    type: MusicAlbum
    date published: 2023-08-20
  genre: vocaloid
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36790dfaad6f53bc9ebbf68049d64b96b9f8dfa5dff93d38029bf8a6664dc924. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPX2316805.
    date published: 2026-07-05T18:48:28Z
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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: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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幽霊になった日
type: MusicAlbum
date published: 2023-10-01

432番
type: MusicAlbum
date published: 2023-11-05

人生がうまくいってないからさ
type: MusicAlbum
date published: 2023-11-19

人生がうまくいってないからさ (self cover)
type: MusicAlbum
date published: 2023-11-20

あたしとベランダ (self cover)
type: MusicAlbum
date published: 2023-11-26

あたしとベランダ
type: MusicAlbum
date published: 2023-11-26

才能なんてもってないねん
type: MusicAlbum
date published: 2023-12-10

才能なんてもってないねん (self cover)
type: MusicAlbum
date published: 2023-12-11

だめだめ天使ちゃん
type: MusicAlbum
date published: 2023-12-17

幸不幸
type: MusicAlbum
date published: 2023-12-26

命日
type: MusicAlbum
date published: 2023-12-31

それでいいんです
type: MusicAlbum
date published: 2024-01-07

はるな。自分で歌いました その１ (self cover)
type: MusicAlbum
date published: 2024-01-15

夏空自由帳 ２ページ目
type: MusicAlbum
date published: 2024-01-20

邦ロックを聴かないあの子はいつも愛を歌う
type: MusicAlbum
date published: 2024-01-23

日直かわちいちゃん
type: MusicAlbum
date published: 2024-01-28

現実逃亡日記
type: MusicAlbum
date published: 2024-02-05

シニカルシニカ
type: MusicAlbum
date published: 2024-02-18

いつか死ぬんです
type: MusicAlbum
date published: 2024-02-25

キミイロ
type: MusicAlbum
date published: 2024-03-08

あの子の人生最後記録
type: MusicAlbum
date published: 2024-03-10

青春創作日記
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date published: 2024-03-29
track: 青春創作日記
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    date published: 2024-03-29
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f30718931f6208310a0939ac71c753a4c1ca3304b94834aa77afa54a2c37e82. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPZ2489134.
    date published: 2026-07-05T12:31:54Z
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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: Instrumentalness
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    additional property: Valence (Positivity)
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42:7
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date published: 2024-04-12
track: 42:7
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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 0x6941b363fa6edb5e7f3fbe8a00daffe32c5ff84a7beef8f84ef8cbe0fdfb6c53. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2402777.
    date published: 2026-07-18T00:27:51Z
  audio: 42:7
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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: Valence (Positivity)
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    additional property: Loudness (dB)
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ちょっと男子
type: MusicAlbum
date published: 2024-04-27

世界滅亡日記
type: MusicAlbum
date published: 2024-05-11
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  duration: PT2M58S
  duration ms: 178582
  explicit: false
  by artist: はるな。
  in album: 世界滅亡日記
    type: MusicAlbum
    date published: 2024-05-11
  genre: vocaloid
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8085d735bb178993953d0bff73827d6eae4e9e088bd46a247b0e88f93efa0267. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TCJPA2440301.
    date published: 2026-07-18T01:26:56Z
  audio: 世界滅亡日記
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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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せかいしね
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date published: 2024-05-15
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  duration ms: 155403
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    date published: 2024-05-15
  genre: vocaloid
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  additional property: OTSVerificationAPI
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  subject of: OpenTimestamps Proof of Existence
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    encoding format: application/vnd.opentimestamps.ots
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    date published: 2026-07-15T20:32:27Z
  audio: せかいしね
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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さようならとまたね (long ver.)
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date published: 2024-05-31

始業式には行けません
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date published: 2024-06-14

ナツノヒリセット (feat. 重音テト)
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date published: 2024-06-28
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-19T07:14:39Z
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さよなら最終回 (feat. 重音テト)
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date published: 2024-07-03

君の声深夜 (feat. 初音ミク)
type: MusicAlbum
date published: 2024-07-03

私ちゃんの夏休み (feat. 重音テト)
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夏空自由帳 ３ページ目
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date published: 2024-07-19

夏みたいな君だった (feat. 初音ミク) [Acoustic ver.]
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date published: 2024-07-20

おやすみあたし (feat. 歌愛ユキ)
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date published: 2024-08-10

君の街から
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date published: 2024-08-28

愛して怠惰 (feat. 初音ミク)
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date published: 2024-09-13

愛して怠惰
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date published: 2024-09-13

はるな。の夏休み
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date published: 2024-09-14

残暑感想文 (feat. 歌愛ユキ)
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6f7ccf514228def91da00b27fe4e423e449644491a1a525ecbacc00c81485716
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2415845
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0x6f7ccf514228def91da00b27fe4e423e449644491a1a525ecbacc00c81485716. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCJPC2415845.
    date published: 2026-07-05T10:01:46Z
  audio: 残暑感想文 (feat. 歌愛ユキ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 179.997
    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: 0.41
    additional property: Energy
      type: PropertyValue
      value: 0.698
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.011
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.004
    additional property: Liveness
      type: PropertyValue
      value: 0.043
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.809
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.946
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

隣のクラスのあの子がいい (feat. 歌愛ユキ)
type: MusicAlbum
date published: 2024-11-13
track: 隣のクラスのあの子がいい (feat. 歌愛ユキ)
  type: MusicRecording
  duration: PT2M47S
  duration ms: 167643
  explicit: false
  by artist: はるな。
  in album: 隣のクラスのあの子がいい (feat. 歌愛ユキ)
    type: MusicAlbum
    date published: 2024-11-13
  genre: vocaloid
  isrc code: TCJPC2460050
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T19:15:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1bdb432cce92d7b5c8082839f6532c5a6f560f25c39a252754e7594a6b2fa291
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958196
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958196
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2460050
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T22:16:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdb432cce92d7b5c8082839f6532c5a6f560f25c39a252754e7594a6b2fa291. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:16:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2460050.
    date published: 2026-07-15T22:16:52Z
  audio: 隣のクラスのあの子がいい (feat. 歌愛ユキ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 180.004
    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: 0.465
    additional property: Energy
      type: PropertyValue
      value: 0.836
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.053
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.383
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.778
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.9
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

人生楽しくない (feat. 歌愛ユキ)
type: MusicAlbum
date published: 2024-12-04
track: 人生楽しくない (feat. 歌愛ユキ)
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152701
  explicit: false
  by artist: はるな。
  in album: 人生楽しくない (feat. 歌愛ユキ)
    type: MusicAlbum
    date published: 2024-12-04
  genre: vocaloid
  isrc code: TCJPC2484824
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T01:20:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x17fac7f424c46b5d3c0e7d2443c2635212fd3b8f5be03f1e112aef9230fce554
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2484824
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0x17fac7f424c46b5d3c0e7d2443c2635212fd3b8f5be03f1e112aef9230fce554. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPC2484824.
    date published: 2026-07-06T01:25:57Z
  audio: 人生楽しくない (feat. 歌愛ユキ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.991
    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: 0.478
    additional property: Energy
      type: PropertyValue
      value: 0.969
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.029
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.359
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.395
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.674
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

愛想ね
type: MusicAlbum
date published: 2024-12-11

君が消えたサマー
type: MusicAlbum
date published: 2025-01-15
track: 君が消えたサマー
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201791
  explicit: false
  by artist: はるな。
  in album: 君が消えたサマー
    type: MusicAlbum
    date published: 2025-01-15
  genre: vocaloid
  isrc code: JP92N2461336
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T17:26:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6452046b5cfca2e7dde4c118462322db1e292f3d741a60519c2fafc83c1dbe21
  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/JP92N2461336
  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 0x6452046b5cfca2e7dde4c118462322db1e292f3d741a60519c2fafc83c1dbe21. 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/JP92N2461336.
    date published: 2026-07-05T01:12:41Z
  audio: 君が消えたサマー
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 200.002
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.286
    additional property: Energy
      type: PropertyValue
      value: 0.906
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.209
    additional property: Liveness
      type: PropertyValue
      value: 0.149
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.703
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.982
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

あした幸せなあれ！
type: MusicAlbum
date published: 2025-01-26
track: あした幸せなあれ！
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177217
  explicit: false
  by artist: はるな。
  in album: あした幸せなあれ！
    type: MusicAlbum
    date published: 2025-01-26
  genre: vocaloid
  isrc code: JP92N2501486
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T11:40:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3b0cb1d0bd7237604569a7b53fdda2aeea8c782177d3cb04b52f1777249caacc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2501486
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:12:23Z
  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 0x3b0cb1d0bd7237604569a7b53fdda2aeea8c782177d3cb04b52f1777249caacc. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/JP92N2501486.
    date published: 2026-07-17T19:12:23Z
  audio: あした幸せなあれ！
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 152.012
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.529
    additional property: Energy
      type: PropertyValue
      value: 0.801
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.034
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.34
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.74
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.239
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

今からここを飛び降りるんだからさ
type: MusicAlbum
date published: 2025-02-12
track: 今からここを飛び降りるんだからさ
  type: MusicRecording
  duration: PT3M46S
  duration ms: 226370
  explicit: false
  by artist: はるな。
  in album: 今からここを飛び降りるんだからさ
    type: MusicAlbum
    date published: 2025-02-12
  genre: vocaloid
  isrc code: JP92N2503777
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-29T08:56:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdff5c8cee8eebdad694be241d67615c359b4d4622ba84720a7358ba6e2eb9803
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956375
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956375
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2503777
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T16:51:38Z
  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 0xdff5c8cee8eebdad694be241d67615c359b4d4622ba84720a7358ba6e2eb9803. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JP92N2503777.
    date published: 2026-07-02T16:51:38Z
  audio: 今からここを飛び降りるんだからさ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.016
    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: 0.495
    additional property: Energy
      type: PropertyValue
      value: 0.921
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.094
    additional property: Liveness
      type: PropertyValue
      value: 0.048
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.921
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.843
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

泡沫快速急行
type: MusicAlbum
date published: 2025-03-09

最終兵器あたし
type: MusicAlbum
date published: 2025-04-09
track: 最終兵器あたし
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198855
  explicit: false
  by artist: はるな。
  in album: 最終兵器あたし
    type: MusicAlbum
    date published: 2025-04-09
  genre: vocaloid
  isrc code: JP92N2513315
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T17:36:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7a91ad5e7708ed23e4f8a2db471fb01855ba0349fc45a0c91c6d7a6b2fc9a96d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958180
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958180
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2513315
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T20:38:43Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x7a91ad5e7708ed23e4f8a2db471fb01855ba0349fc45a0c91c6d7a6b2fc9a96d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:38:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2513315.
    date published: 2026-07-15T20:38:43Z
  audio: 最終兵器あたし
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.042
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.549
    additional property: Energy
      type: PropertyValue
      value: 0.823
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.345
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.797
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.279
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

最終兵器あたし
type: MusicAlbum
date published: 2025-04-09

命短し恋せよお前 (feat. 重音テト)
type: MusicAlbum
date published: 2025-04-11
track: 命短し恋せよお前 (feat. 重音テト)
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154008
  explicit: false
  by artist: はるな。
  in album: 命短し恋せよお前 (feat. 重音テト)
    type: MusicAlbum
    date published: 2025-04-11
  genre: vocaloid
  isrc code: TCJPG2516024
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T18:40:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8004aec62d6cce2def6abe5deedb5750b8aa32ceead8017ea832d712e2d87c41
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958194
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958194
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2516024
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T21:43:04Z
  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 0x8004aec62d6cce2def6abe5deedb5750b8aa32ceead8017ea832d712e2d87c41. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:43:04Z), 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/TCJPG2516024.
    date published: 2026-07-15T21:43:04Z
  audio: 命短し恋せよお前 (feat. 重音テト)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 89.988
    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: 0.649
    additional property: Energy
      type: PropertyValue
      value: 0.88
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.046
    additional property: Instrumentalness
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      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.199
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.714
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.033
    additional property: Key Name
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      value: Eb
    additional property: Mode Name
      type: PropertyValue
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私がしにたかった今日は誰かが生きたかった明日らしい
type: MusicAlbum
date published: 2025-06-09

私が死にたかった今日は誰かが生きたかった明日らしい (feat. 海恋)
type: MusicAlbum
date published: 2025-06-12
track: 私が死にたかった今日は誰かが生きたかった明日らしい (feat. 海恋)
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145846
  explicit: false
  by artist: はるな。
  in album: 私が死にたかった今日は誰かが生きたかった明日らしい (feat. 海恋)
    type: MusicAlbum
    date published: 2025-06-12
  genre: vocaloid
  isrc code: TCJPI2575612
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:56:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x73eb5d22404620d62e98a6ca69b927035307a35eb7f453d51aace5a30d0bbfd1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2575612
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x73eb5d22404620d62e98a6ca69b927035307a35eb7f453d51aace5a30d0bbfd1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2575612.
    date published: 2026-07-03T19:59:51Z
  audio: 私が死にたかった今日は誰かが生きたかった明日らしい (feat. 海恋)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.01
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.783
    additional property: Energy
      type: PropertyValue
      value: 0.626
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.967
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.536
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
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ざけんな。 (self cover)
type: MusicAlbum
date published: 2025-07-02
track: ざけんな。 - self cover
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192195
  explicit: false
  by artist: はるな。
  in album: ざけんな。 (self cover)
    type: MusicAlbum
    date published: 2025-07-02
  genre: vocaloid
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x58dfc9ff5f13c47f6dbbc0e42144525f2c8771e619df257faaeb349383f55664
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958770
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T21:03:47Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → 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 0x58dfc9ff5f13c47f6dbbc0e42144525f2c8771e619df257faaeb349383f55664. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:03:47Z), 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/TCJPJ2554152.
    date published: 2026-07-19T21:03:47Z
  audio: ざけんな。 - self cover
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    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: 0.388
    additional property: Energy
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      value: 0.808
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.087
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.55
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.8
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
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愛に恋よ (self cover)
type: MusicAlbum
date published: 2025-07-02

はちがつ (feat. 歌愛ユキ)
type: MusicAlbum
date published: 2025-07-05

めいびい (feat. 初音ミク)
type: MusicAlbum
date published: 2025-07-25

おわかれ数秒前 (feat. 歌愛ユキ)
type: MusicAlbum
date published: 2025-08-06
track: おわかれ数秒前 (feat. 歌愛ユキ)
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159157
  explicit: false
  by artist: はるな。
  in album: おわかれ数秒前 (feat. 歌愛ユキ)
    type: MusicAlbum
    date published: 2025-08-06
  genre: vocaloid
  isrc code: TCJPK2573794
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T19:04:55+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x62f949f603d870f7370668be71559a5c085af4377b946ad2892d10c4b6fa8d75
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPK2573794
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  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 0x62f949f603d870f7370668be71559a5c085af4377b946ad2892d10c4b6fa8d75. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPK2573794.
    date published: 2026-07-18T19:27:02Z
  audio: おわかれ数秒前 (feat. 歌愛ユキ)
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 95.018
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.53
    additional property: Energy
      type: PropertyValue
      value: 0.935
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.038
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.434
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.957
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.754
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

365日病
type: MusicAlbum
date published: 2025-08-23
track: 365日病
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174324
  explicit: false
  by artist: はるな。
  in album: 365日病
    type: MusicAlbum
    date published: 2025-08-23
  genre: vocaloid
  isrc code: JP92N2535845
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T09:36:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5b41790230e02ab1a1edce74fd7825e1c244bc956f8c255ab09b3d9b64b47ab4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958543
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958543
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2535845
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T11:58:44Z
  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 0x5b41790230e02ab1a1edce74fd7825e1c244bc956f8c255ab09b3d9b64b47ab4. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JP92N2535845.
    date published: 2026-07-18T11:58:44Z
  audio: 365日病
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.941
    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: 0.546
    additional property: Energy
      type: PropertyValue
      value: 0.717
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.267
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.755
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.961
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
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さざなみ (self cover)
type: MusicAlbum
date published: 2025-08-23

さざなみ (feat. 初音ミク)
type: MusicAlbum
date published: 2025-08-23

あなたは (feat. 歌愛ユキ)
type: MusicAlbum
date published: 2025-09-20
track: あなたは (feat. 歌愛ユキ)
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177333
  explicit: false
  by artist: はるな。
  in album: あなたは (feat. 歌愛ユキ)
    type: MusicAlbum
    date published: 2025-09-20
  genre: vocaloid
  isrc code: QT66J2543643
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T23:46:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xadb5c71ee3ed844c9fe6c7f0bc763ab407dd36fdd6815df0bc90b43dfcb712d8
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958798
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958798
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2543643
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T02:49:31Z
  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 0xadb5c71ee3ed844c9fe6c7f0bc763ab407dd36fdd6815df0bc90b43dfcb712d8. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:49:31Z), 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/QT66J2543643.
    date published: 2026-07-20T02:49:31Z
  audio: あなたは (feat. 歌愛ユキ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 179.941
    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: 0.371
    additional property: Energy
      type: PropertyValue
      value: 0.88
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.906
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.61
    additional property: Key Name
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      value: G
    additional property: Mode Name
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      value: Major

好きだよ私ちゃん
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date published: 2025-09-20
track: 好きだよ私ちゃん
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166250
  explicit: false
  by artist: はるな。
  in album: 好きだよ私ちゃん
    type: MusicAlbum
    date published: 2025-09-20
  genre: vocaloid
  isrc code: JP92N2542355
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0xdbeb1683139dbbe034ee3733987d4600aafec40efb6f6233cc65142f2792f6d9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958808
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2542355
  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 → 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 0xdbeb1683139dbbe034ee3733987d4600aafec40efb6f6233cc65142f2792f6d9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JP92N2542355.
    date published: 2026-07-20T02:49:15Z
  audio: 好きだよ私ちゃん
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