少女フラクタル
type: MusicGroup
popularity: 29
followers: 11777
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9295a201a31cc76d890f24c618d0962afe4da8e11a9c505232185624517429aa
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/2d39c435-d4c3-4c61-9ff3-bfd651ce926b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d39c435-d4c3-4c61-9ff3-bfd651ce926b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d39c435-d4c3-4c61-9ff3-bfd651ce926b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9295a201a31cc76d890f24c618d0962afe4da8e11a9c505232185624517429aa","name":"少女フラクタル","registered_at":"2026-06-11T15:09:50Z","symbol":"NIM0059059","token_address":"0xd5ca4639a5c921ff3b4b843bb26062cf9a626f34","type":"artist","uuid":"2d39c435-d4c3-4c61-9ff3-bfd651ce926b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9295a201a31cc76d890f24c618d0962afe4da8e11a9c505232185624517429aa. 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/2d39c435-d4c3-4c61-9ff3-bfd651ce926b.json and https://artists.proofprofile.net/proofs/artist/2d39c435-d4c3-4c61-9ff3-bfd651ce926b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x9295a201a31cc76d890f24c618d0962afe4da8e11a9c505232185624517429aa","name":"少女フラクタル","registered_at":"2026-06-11T15:09:50Z","symbol":"NIM0059059","token_address":"0xd5ca4639a5c921ff3b4b843bb26062cf9a626f34","type":"artist","uuid":"2d39c435-d4c3-4c61-9ff3-bfd651ce926b"}
album: トロイメライ
  type: MusicAlbum
  date published: 2024-12-29
  track: トロイメライ
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192937
    explicit: false
    by artist: 少女フラクタル
    in album: トロイメライ
      type: MusicAlbum
      date published: 2024-12-29
    isrc code: JPW562112662
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-21T15:02:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4e4578cf2c70da2dd373acd438d5f8eeee05825813cb199c102aa0c6ef12eeeb
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956302
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562112662
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4578cf2c70da2dd373acd438d5f8eeee05825813cb199c102aa0c6ef12eeeb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562112662.
      date published: 2026-07-02T03:30:09Z
    audio: トロイメライ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 158.809
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.432
      additional property: Energy
        type: PropertyValue
        value: 0.996
      additional property: Speechiness
        type: PropertyValue
        value: 0.441
      additional property: Acousticness
        type: PropertyValue
        value: 0.048
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.077
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.412
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.91
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: 無限螺旋で悟られて
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182624
    explicit: false
    by artist: 少女フラクタル
    in album: トロイメライ
      type: MusicAlbum
      date published: 2024-12-29
    isrc code: JPW562112663
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T16:08:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd901654e1285bab5ba72361a00e78ffa6f8ce4466f0d81c5b729c735de450d81
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562112663
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T19:06:38Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd901654e1285bab5ba72361a00e78ffa6f8ce4466f0d81c5b729c735de450d81. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:06:38Z), 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/JPW562112663.
      date published: 2026-07-22T19:06:38Z
    audio: 無限螺旋で悟られて
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 158.769
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.568
      additional property: Energy
        type: PropertyValue
        value: 0.93
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.128
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.331
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.635
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.242
      additional property: Key Name
      additional property: Mode Name
album: 深淵の果て、ひとつの光
album: シングルズベストVol.1 果てなき風の軌跡さえ(リニューアル)
album: BEST FANBOX Vol.2
album: 三日月の導き
album: BEST FANBOX Vol.1
album: 夜明けの先
album: 幾千億分の一
album: シングルベストVol.4 無限の旅、僕らの選択
album: DX ALBUM「色は匂へど散りぬるを」
album: 3in1CD 色は匂へど 散りぬるを
album: シングルズベストVol.2 無邪気と言う名の正義
album: 3in1CD「聖人の調律」
album: 3in1CD 聖人の調律
album: シングルズベストVol.1「果てなき風の軌跡さえ」(アニメMV使用曲「果てなき風の軌跡さえ」収録)」
album: 3in1CD「彷徨いの冥」 Orig.Ver.(幻想万華鏡挿入歌「必然のカタストロフィ」、アニメMV使用曲「彷徨いの冥」収録)
album: 東方アレンジ 神楽めあ＆幽閉少女コラボ vol.2
album: 東方アレンジ 神楽めあ＆幽閉少女コラボ vol.1
album: 想いの言ノ葉(instrumental ver.)
album: 今宵、ヴァンパイアは
album: オリジナル楽曲 神楽めあ＆幽閉少女コラボ vol.3
album: 花粉症のテーマ曲
album: 紅く唄う魂(instrumental ver.)
album: 偶像のアイデンティティ
album: ユメミガチ
album: たったひとつの願い事
album: 天を掴むまで
album: 巡る運命
album: 彩りゆく幻想
album: 星空を地に堕として
album: 秘められた意図
album: 不完全の命
album: 雲隠レシ空、誰を想フ。
album: 幻想は儚く優しく
album: あなたの幸せ、私の幸せ。
album: 無慈悲な運命と知りながら
album: 幸せの行方
album: 裏表ロンリネス
album: 不可測的メトロポリス
album: シングルズベストVol.3 その日、夢想は共鳴する

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

深淵の果て、ひとつの光
type: MusicAlbum
date published: 2023-12-31

シングルズベストVol.1 果てなき風の軌跡さえ(リニューアル)
type: MusicAlbum
date published: 2023-12-31

BEST FANBOX Vol.2
type: MusicAlbum
date published: 2023-12-31

三日月の導き
type: MusicAlbum
date published: 2023-08-13

BEST FANBOX Vol.1
type: MusicAlbum
date published: 2023-08-13

夜明けの先
type: MusicAlbum
date published: 2022-12-31

幾千億分の一
type: MusicAlbum
date published: 2022-08-14

シングルベストVol.4 無限の旅、僕らの選択
type: MusicAlbum
date published: 2021-03-21

DX ALBUM「色は匂へど散りぬるを」
type: MusicAlbum
date published: 2020-03-22
track: 色は匂へど散りぬるを(Fractal 1.5ver.)[with 天宮みや & 柚木梨沙]
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235453
  explicit: false
  by artist: 少女フラクタル
  in album: DX ALBUM「色は匂へど散りぬるを」
    type: MusicAlbum
    date published: 2020-03-22
  isrc code: JPW562001667
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T13:09:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa538c137e8aec6e88d8bd0094b69ba86bb1b4a6abfa3d034534d83607493c52a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562001667
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa538c137e8aec6e88d8bd0094b69ba86bb1b4a6abfa3d034534d83607493c52a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562001667.
    date published: 2026-06-13T13:32:09Z
  audio: 色は匂へど散りぬるを(Fractal 1.5ver.)[with 天宮みや & 柚木梨沙]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 143.831
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.436
    additional property: Energy
      type: PropertyValue
      value: 0.964
    additional property: Speechiness
      type: PropertyValue
      value: 0.086
    additional property: Acousticness
      type: PropertyValue
      value: 0.295
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.345
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.395
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.002
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

3in1CD 色は匂へど 散りぬるを
type: MusicAlbum
date published: 2020-03-22

シングルズベストVol.2 無邪気と言う名の正義
type: MusicAlbum
date published: 2019-12-31

3in1CD「聖人の調律」
type: MusicAlbum
date published: 2019-12-31

3in1CD 聖人の調律
type: MusicAlbum
date published: 2019-12-31

シングルズベストVol.1「果てなき風の軌跡さえ」(アニメMV使用曲「果てなき風の軌跡さえ」収録)」
type: MusicAlbum
date published: 2018-12-30

3in1CD「彷徨いの冥」 Orig.Ver.(幻想万華鏡挿入歌「必然のカタストロフィ」、アニメMV使用曲「彷徨いの冥」収録)
type: MusicAlbum
date published: 2018-12-30

東方アレンジ 神楽めあ＆幽閉少女コラボ vol.2
type: MusicAlbum
date published: 2024-08-11
track: とこしえの魔法(with 朔間咲)
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267575
  explicit: false
  by artist: 神楽めあ
  by artist: 幽閉サテライト
  by artist: 少女フラクタル
  by artist: 朔間咲
  in album: 東方アレンジ 神楽めあ＆幽閉少女コラボ vol.2
    type: MusicAlbum
    date published: 2024-08-11
  isrc code: JPW562111877
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T22:55:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3ff95a9c4f1a4835c684ba109e3052a83ba5213b6c3bca065d505f33fbc92764
  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/JPW562111877
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T00:00:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff95a9c4f1a4835c684ba109e3052a83ba5213b6c3bca065d505f33fbc92764. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:00:58Z), 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/JPW562111877.
    date published: 2026-07-17T00:00:58Z
  audio: とこしえの魔法(with 朔間咲)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 155.407
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.511
    additional property: Energy
      type: PropertyValue
      value: 0.964
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.021
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.221
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.439
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.37
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

東方アレンジ 神楽めあ＆幽閉少女コラボ vol.1
type: MusicAlbum
date published: 2024-08-11
track: 時計仕掛けの命に抱かれ(with 神楽めあ)
  type: MusicRecording
  duration: PT5M0S
  duration ms: 300750
  explicit: false
  by artist: 幽閉サテライト
  by artist: 少女フラクタル
  by artist: 神楽めあ
  in album: 東方アレンジ 神楽めあ＆幽閉少女コラボ vol.1
    type: MusicAlbum
    date published: 2024-08-11
  isrc code: JPW562111869
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T22:55:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x34673e113866ef7a0f45659cd9c416a1de163a2b8519af2a7b7245a9c5970fd6
  additional property: OTSHash
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    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/JPW562111869
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34673e113866ef7a0f45659cd9c416a1de163a2b8519af2a7b7245a9c5970fd6. 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/JPW562111869.
    date published: 2026-07-02T16:51:38Z
  audio: 時計仕掛けの命に抱かれ(with 神楽めあ)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 140.435
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.525
    additional property: Energy
      type: PropertyValue
      value: 0.954
    additional property: Speechiness
      type: PropertyValue
      value: 0.082
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.208
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.476
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.569
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: アマリリスの虚栄心(with sroa)
  type: MusicRecording
  duration: PT4M51S
  duration ms: 291500
  explicit: false
  by artist: 神楽めあ
  by artist: 幽閉サテライト
  by artist: 少女フラクタル
  by artist: sroa
  in album: 東方アレンジ 神楽めあ＆幽閉少女コラボ vol.1
    type: MusicAlbum
    date published: 2024-08-11
  isrc code: JPW562111870
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-27T01:21:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd1169eaaba6644eb7b852f46fe81a7b7e833197d671e495e23be36a7ca235b29
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111870
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1169eaaba6644eb7b852f46fe81a7b7e833197d671e495e23be36a7ca235b29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111870.
    date published: 2026-07-02T03:55:08Z
  audio: アマリリスの虚栄心(with sroa)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 162.235
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.376
    additional property: Energy
      type: PropertyValue
      value: 0.947
    additional property: Speechiness
      type: PropertyValue
      value: 0.155
    additional property: Acousticness
      type: PropertyValue
      value: 0.081
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.067
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.314
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.09
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

想いの言ノ葉(instrumental ver.)
type: MusicAlbum
date published: 2024-08-11

今宵、ヴァンパイアは
type: MusicAlbum
date published: 2024-08-11
track: 今宵、ヴァンパイア
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221281
  explicit: false
  by artist: 少女フラクタル
  in album: 今宵、ヴァンパイアは
    type: MusicAlbum
    date published: 2024-08-11
  isrc code: JPW562111918
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T03:37:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa22cab54c3d1c46dcd24610a8272c01e9eda2caac5c250fe996569a1d8c6893c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111918
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22cab54c3d1c46dcd24610a8272c01e9eda2caac5c250fe996569a1d8c6893c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562111918.
    date published: 2026-07-02T03:55:08Z
  audio: 今宵、ヴァンパイア
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 146.582
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.547
    additional property: Energy
      type: PropertyValue
      value: 0.975
    additional property: Speechiness
      type: PropertyValue
      value: 0.107
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.349
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.355
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.048
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

オリジナル楽曲 神楽めあ＆幽閉少女コラボ vol.3
type: MusicAlbum
date published: 2024-08-11

花粉症のテーマ曲
type: MusicAlbum
date published: 2024-05-18

紅く唄う魂(instrumental ver.)
type: MusicAlbum
date published: 2024-05-03

偶像のアイデンティティ
type: MusicAlbum
date published: 2024-05-03

ユメミガチ
type: MusicAlbum
date published: 2023-11-12

たったひとつの願い事
type: MusicAlbum
date published: 2023-05-07

天を掴むまで
type: MusicAlbum
date published: 2022-10-22

巡る運命
type: MusicAlbum
date published: 2022-05-08
track: 巡る運命[with 十色奏音、二羽凛奈]
  type: MusicRecording
  duration: PT4M42S
  duration ms: 282010
  explicit: false
  by artist: 少女フラクタル
  by artist: 十色奏音
  by artist: 二羽凛奈
  in album: 巡る運命
    type: MusicAlbum
    date published: 2022-05-08
  isrc code: JPW562105400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T16:26:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x09916751ed7dcdc2423d9d8ea54ad5392fd076513d8f905e4ff59b32405e3d9d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562105400
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09916751ed7dcdc2423d9d8ea54ad5392fd076513d8f905e4ff59b32405e3d9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562105400.
    date published: 2026-07-02T03:30:09Z
  audio: 巡る運命[with 十色奏音、二羽凛奈]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.647
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.418
    additional property: Energy
      type: PropertyValue
      value: 0.988
    additional property: Speechiness
      type: PropertyValue
      value: 0.115
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.256
    additional property: Liveness
      type: PropertyValue
      value: 0.348
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.269
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.943
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

彩りゆく幻想
type: MusicAlbum
date published: 2021-12-31

星空を地に堕として
type: MusicAlbum
date published: 2021-11-28
track: 星空を地に堕として [with 神月紅璃夢&十色奏音&凪ユイナ]
  type: MusicRecording
  duration: PT4M28S
  duration ms: 268500
  explicit: false
  by artist: 少女フラクタル
  by artist: 神月紅璃夢
  by artist: 十色奏音
  by artist: 凪ユイナ
  in album: 星空を地に堕として
    type: MusicAlbum
    date published: 2021-11-28
  isrc code: JPW562103936
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T23:14:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbd80627633ccc17570b5708c0569c8ce2ae8fd4fd6e46face9a15ee3f21f449f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562103936
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd80627633ccc17570b5708c0569c8ce2ae8fd4fd6e46face9a15ee3f21f449f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562103936.
    date published: 2026-07-02T03:55:08Z
  audio: 星空を地に堕として [with 神月紅璃夢&十色奏音&凪ユイナ]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 168.984
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.463
    additional property: Energy
      type: PropertyValue
      value: 0.988
    additional property: Speechiness
      type: PropertyValue
      value: 0.082
    additional property: Acousticness
      type: PropertyValue
      value: 0.078
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.169
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.751
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.238
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

秘められた意図
type: MusicAlbum
date published: 2021-10-24

不完全の命
type: MusicAlbum
date published: 2021-07-18

雲隠レシ空、誰を想フ。
type: MusicAlbum
date published: 2021-03-21
track: 雲隠レシ空、誰を想フ。 [with 天宮みや&姫城碧海]
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236000
  explicit: false
  by artist: 少女フラクタル
  by artist: 天宮みや
  by artist: 姫城碧海
  in album: 雲隠レシ空、誰を想フ。
    type: MusicAlbum
    date published: 2021-03-21
  isrc code: JPW562103919
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T04:33:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9dd3a44540767f092dff77b21af4ddac795e54adfdc766cd3d08809697a4b9fc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956894
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956894
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562103919
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T07:53:57Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd3a44540767f092dff77b21af4ddac795e54adfdc766cd3d08809697a4b9fc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPW562103919.
    date published: 2026-07-06T07:53:57Z
  audio: 雲隠レシ空、誰を想フ。 [with 天宮みや&姫城碧海]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 157.385
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.493
    additional property: Energy
      type: PropertyValue
      value: 0.991
    additional property: Speechiness
      type: PropertyValue
      value: 0.276
    additional property: Acousticness
      type: PropertyValue
      value: 0.025
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.283
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.306
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.654
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

幻想は儚く優しく
type: MusicAlbum
date published: 2020-12-31

あなたの幸せ、私の幸せ。
type: MusicAlbum
date published: 2020-10-11

無慈悲な運命と知りながら
type: MusicAlbum
date published: 2020-08-09

幸せの行方
type: MusicAlbum
date published: 2020-05-05

裏表ロンリネス
type: MusicAlbum
date published: 2020-03-22

不可測的メトロポリス
type: MusicAlbum
date published: 2019-12-31
track: 不可測的メトロポリス[with 天宮みや & 姫城碧海]
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265727
  explicit: false
  by artist: 少女フラクタル
  in album: 不可測的メトロポリス
    type: MusicAlbum
    date published: 2019-12-31
  isrc code: JPW562000936
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T08:45:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d1a736a97b274f260f9ae1e5909d766c4923fed1f626f17f74737b33a3f3b38
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562000936
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1a736a97b274f260f9ae1e5909d766c4923fed1f626f17f74737b33a3f3b38. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW562000936.
    date published: 2026-06-13T13:32:09Z
  audio: 不可測的メトロポリス[with 天宮みや & 姫城碧海]
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 156.03
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.503
    additional property: Energy
      type: PropertyValue
      value: 0.986
    additional property: Speechiness
      type: PropertyValue
      value: 0.076
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.153
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.488
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.8
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

シングルズベストVol.3 その日、夢想は共鳴する
type: MusicAlbum
date published: 2019-12-31