Hakushi Hasegawa
type: MusicGroup
genre: breakcore
genre: japanese indie
genre: shibuya-kei
description: is a Japanese singer-songwriter born in Tokyo, Japan. After releasing music on SoundCloud and signing to netlabel Maltine Records, they made their debut with the release of their first EP, iPhone Six
popularity: 38
followers: 76426
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x8b8ad76db108fa66140d0ad6d9ba2e6b543c3ec027d39e6f70a498be65bc0332
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/bf0f0c8d-31e9-4777-affc-2cfbb8c47c63.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf0f0c8d-31e9-4777-affc-2cfbb8c47c63.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf0f0c8d-31e9-4777-affc-2cfbb8c47c63
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8ad76db108fa66140d0ad6d9ba2e6b543c3ec027d39e6f70a498be65bc0332. 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/bf0f0c8d-31e9-4777-affc-2cfbb8c47c63.json and https://artists.proofprofile.net/proofs/artist/bf0f0c8d-31e9-4777-affc-2cfbb8c47c63.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: 草木萌動
  type: MusicAlbum
  date published: 2018-12-18
  track: 它会消失
    type: MusicRecording
    duration: PT7M22S
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    explicit: false
    by artist: Hakushi Hasegawa
    in album: 草木萌動
      type: MusicAlbum
      date published: 2018-12-18
    genre: breakcore
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPB531800343
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: OTSBitcoinBlock
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      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/JPB531800343
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 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 0x454600ba2faaaa4d337984a14d27f09972dd2ddb7c9a2a082817b1896a3c5e11. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPB531800343.
      date published: 2026-07-15T17:59:52Z
    audio: 它会消失
      type: AudioObject
      additional property: Tempo (BPM)
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        type: PropertyValue
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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)
        type: PropertyValue
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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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  track: 妾薄命
    type: MusicRecording
    duration: PT1M29S
    duration ms: 89026
    explicit: false
    by artist: Hakushi Hasegawa
    in album: 草木萌動
      type: MusicAlbum
      date published: 2018-12-18
    genre: breakcore
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPB531800344
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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      value: https://explorer.copyrightchains.com/tx/0x6febc3eb2dfb24d300bd4ce432c5e4683b81680b3ea2e8549552d441f8d4cd36
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531800344
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0x6febc3eb2dfb24d300bd4ce432c5e4683b81680b3ea2e8549552d441f8d4cd36. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPB531800344.
      date published: 2026-07-05T10:59:37Z
    audio: 妾薄命
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
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        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.376
      additional property: Energy
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        value: 0.192
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.918
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: キュー
  track: はみ出す指
album: Somoku Hodo
album: 砂漠で
album: Desert
album: あなただけ
album: Only You
album: 悪魔
album: Evil Things
album: I Can See Mountains
album: 山が見える
album: エアにに
album: Air Ni Ni
album: Sea Change
album: シー・チェンジ
album: Bones of Dreams Attacked!
album: 夢の骨が襲いかかる！
album: 巣食いのて
album: わたしをみて
album: ユニ
album: Mouth Flash (Kuchinohanabi)
album: オレは死んじまったゼ！ (オリジナル・サウンドトラック)
album: Boy’s Texture
album: Departed
album: Gone
album: KYŌFUNOHOSHI
album: Mahōgakkō
album: Wonderful Christmastime
album: 草木 - From THE FIRST TAKE
album: Outside (Soto) - From THE FIRST TAKE
album: Somoku - From THE FIRST TAKE
track: hikari
track: 透明稼業
track: Toumeikagyou
track: 会いたいね｡ﾟ(ﾟ´ω`ﾟ)ﾟ｡ - feat.長谷川白紙 [2025 Remaster]
track: youth (feat. Hakushi Hasegawa)
track: hikari - imai remix

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.134

Valence (Positivity)
type: PropertyValue
value: 0.155

Loudness (dB)
type: PropertyValue
value: -21.756

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

キュー
type: MusicRecording
duration: PT4M12S
duration ms: 252200
explicit: false
by artist: Hakushi Hasegawa
in album: 草木萌動
  type: MusicAlbum
  date published: 2018-12-18
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531800345
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T11:39:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6973bb7dc925d332032db909d30e818d102d2f4ca21a555a28315dbcf7b0f0bd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958286
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958286
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531800345
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T12:43:37Z
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 0x6973bb7dc925d332032db909d30e818d102d2f4ca21a555a28315dbcf7b0f0bd. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPB531800345.
  date published: 2026-07-16T12:43:37Z
audio: キュー
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.013
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.596
  additional property: Energy
    type: PropertyValue
    value: 0.754
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.259
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.014
  additional property: Liveness
    type: PropertyValue
    value: 0.102
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.443
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.092
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

はみ出す指
type: MusicRecording
duration: PT4M22S
duration ms: 262213
explicit: false
by artist: Hakushi Hasegawa
in album: 草木萌動
  type: MusicAlbum
  date published: 2018-12-18
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531800346
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T12:51:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf20a3164e52e562029ab15e2dbc54587506c3bb3fa34e2e077fa97523fcef85f
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/JPB531800346
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 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 0xf20a3164e52e562029ab15e2dbc54587506c3bb3fa34e2e077fa97523fcef85f. 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/JPB531800346.
  date published: 2026-07-05T01:12:41Z
audio: はみ出す指
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 127.829
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.595
  additional property: Energy
    type: PropertyValue
    value: 0.463
  additional property: Speechiness
    type: PropertyValue
    value: 0.098
  additional property: Acousticness
    type: PropertyValue
    value: 0.423
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.076
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.649
  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Somoku Hodo
type: MusicAlbum
date published: 2018-12-18

Somoku Hodo
type: MusicAlbum
date published: 2018-12-18
track: Qie boming
  type: MusicRecording
  duration: PT1M29S
  duration ms: 89026
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Somoku Hodo
    type: MusicAlbum
    date published: 2018-12-18
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531800344
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T19:57:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6febc3eb2dfb24d300bd4ce432c5e4683b81680b3ea2e8549552d441f8d4cd36
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956551
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956551
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531800344
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T21:18:05Z
  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 0x6febc3eb2dfb24d300bd4ce432c5e4683b81680b3ea2e8549552d441f8d4cd36. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPB531800344.
    date published: 2026-07-03T21:18:05Z
  audio: Qie boming
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.765
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.377
    additional property: Energy
      type: PropertyValue
      value: 0.198
    additional property: Speechiness
      type: PropertyValue
      value: 0.069
    additional property: Acousticness
      type: PropertyValue
      value: 0.921
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.134
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.151
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.741
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

草木萌動
type: MusicAlbum
date published: 2018-12-18

砂漠で
type: MusicAlbum
date published: 2019-11-09

Desert
type: MusicAlbum
date published: 2019-11-09

あなただけ
type: MusicAlbum
date published: 2019-11-09

Only You
type: MusicAlbum
date published: 2019-11-09

悪魔
type: MusicAlbum
date published: 2019-11-10

Evil Things
type: MusicAlbum
date published: 2019-11-10

I Can See Mountains
type: MusicAlbum
date published: 2019-11-12

山が見える
type: MusicAlbum
date published: 2019-11-12

エアにに
type: MusicAlbum
date published: 2019-11-13
track: 怖いところ
  type: MusicRecording
  duration: PT1M47S
  duration ms: 107683
  explicit: false
  by artist: Hakushi Hasegawa
  in album: エアにに
    type: MusicAlbum
    date published: 2019-11-13
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900088
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T09:40:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa3fc7b82f901c761f1d9bff7d9e2fc272fb27f38bbf62c11f4434c86269225cc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958276
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958276
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900088
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T10:20:17Z
  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 0xa3fc7b82f901c761f1d9bff7d9e2fc272fb27f38bbf62c11f4434c86269225cc. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/JPB531900088.
    date published: 2026-07-16T10:20:17Z
  audio: 怖いところ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.346
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.399
    additional property: Energy
      type: PropertyValue
      value: 0.675
    additional property: Speechiness
      type: PropertyValue
      value: 0.072
    additional property: Acousticness
      type: PropertyValue
      value: 0.206
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.039
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.589
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.005
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 砂漠で
  type: MusicRecording
  duration: PT3M54S
  duration ms: 234872
  explicit: false
  by artist: Hakushi Hasegawa
  in album: エアにに
    type: MusicAlbum
    date published: 2019-11-13
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900089
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T11:09:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xafdd75cc74aa045ad293971a5ac647eae015e4644850fe1f29a6effe0d3a0f7f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958152
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958152
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900089
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T12:00:27Z
  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 0xafdd75cc74aa045ad293971a5ac647eae015e4644850fe1f29a6effe0d3a0f7f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/JPB531900089.
    date published: 2026-07-15T12:00:27Z
  audio: 砂漠で
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.011
    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: 0.257
    additional property: Energy
      type: PropertyValue
      value: 0.966
    additional property: Speechiness
      type: PropertyValue
      value: 0.109
    additional property: Acousticness
      type: PropertyValue
      value: 0.01
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.287
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.284
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.809
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 風邪山羊
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175840
  explicit: false
  by artist: Hakushi Hasegawa
  in album: エアにに
    type: MusicAlbum
    date published: 2019-11-13
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900090
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T22:33:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe93b744e492b407b8bac7439eb934531fded60247a196e809ff6724b38457dd1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 風邪山羊
track: 蕊のパーティ
track: 悪魔
track: いつくしい日々
track: 山が見える
track: ニュートラル

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958461

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958461

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900090

OTSTimestamp
type: PropertyValue
value: 2026-07-17T23:18:11Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93b744e492b407b8bac7439eb934531fded60247a196e809ff6724b38457dd1. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/JPB531900090.
date published: 2026-07-17T23:18:11Z

風邪山羊
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 130.964
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: 0.745
additional property: Energy
  type: PropertyValue
  value: 0.935
additional property: Speechiness
  type: PropertyValue
  value: 0.063
additional property: Acousticness
  type: PropertyValue
  value: 0.418
additional property: Instrumentalness
  type: PropertyValue
  value: 0.48
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.853
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.869
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

蕊のパーティ
type: MusicRecording
duration: PT5M37S
duration ms: 337385
explicit: false
by artist: Hakushi Hasegawa
in album: エアにに
  type: MusicAlbum
  date published: 2019-11-13
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900091
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd73c8fbad5cf7a13bc510c8f873bd1ed5e55fc724c3265f18563ee5b2fb98832
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958796
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958796
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900091
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T00:01:46Z
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 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 0xd73c8fbad5cf7a13bc510c8f873bd1ed5e55fc724c3265f18563ee5b2fb98832. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPB531900091.
  date published: 2026-07-20T00:01:46Z
audio: 蕊のパーティ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 57.003
  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: 0.304
  additional property: Energy
    type: PropertyValue
    value: 0.59
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.274
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.023
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.208
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

悪魔
type: MusicRecording
duration: PT6M45S
duration ms: 405293
explicit: false
by artist: Hakushi Hasegawa
in album: エアにに
  type: MusicAlbum
  date published: 2019-11-13
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900092
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4db5495ba0cbe624f78fdc0d9432a16bd8411d0bf734853616741381c12ba49
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958808
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/JPB531900092
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T02:49:15Z
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 0xc4db5495ba0cbe624f78fdc0d9432a16bd8411d0bf734853616741381c12ba49. 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/JPB531900092.
  date published: 2026-07-20T02:49:15Z
audio: 悪魔
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.791
  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: 0.242
  additional property: Energy
    type: PropertyValue
    value: 0.917
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.015
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.042
  additional property: Liveness
    type: PropertyValue
    value: 0.351
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.276
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.816
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

いつくしい日々
type: MusicRecording
duration: PT7M12S
duration ms: 432289
explicit: false
by artist: Hakushi Hasegawa
in album: エアにに
  type: MusicAlbum
  date published: 2019-11-13
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900093
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x086ea1358c2b679015a859f535cbad85c39dbd8b7868212fdc18f1dd01ec9fce
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958985
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958985
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900093
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T08:39:15Z
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 0x086ea1358c2b679015a859f535cbad85c39dbd8b7868212fdc18f1dd01ec9fce. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPB531900093.
  date published: 2026-07-21T08:39:15Z
audio: いつくしい日々
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 155.008
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 1
  additional property: Danceability
    type: PropertyValue
    value: 0.393
  additional property: Energy
    type: PropertyValue
    value: 0.886
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.086
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.093
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.107
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.151
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

山が見える
type: MusicRecording
duration: PT4M1S
duration ms: 241525
explicit: false
by artist: Hakushi Hasegawa
in album: エアにに
  type: MusicAlbum
  date published: 2019-11-13
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900094
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T07:00:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd3154430ac25a39b2578fde277836e1da3f2cc897d32f379fbab8059d83b7da3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900094
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T08:19:09Z
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 0xd3154430ac25a39b2578fde277836e1da3f2cc897d32f379fbab8059d83b7da3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPB531900094.
  date published: 2026-07-18T08:19:09Z
audio: 山が見える
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 117.02
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.544
  additional property: Energy
    type: PropertyValue
    value: 0.823
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.014
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.029
  additional property: Liveness
    type: PropertyValue
    value: 0.168
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.432
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.817
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ニュートラル
type: MusicRecording
duration: PT3M35S
duration ms: 215388
explicit: false
by artist: Hakushi Hasegawa
in album: エアにに
  type: MusicAlbum
  date published: 2019-11-13
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-29T09:12:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacd85e8e33d6a94d7e04a61b3a37fc6af28bc33545aa9567c51430838d9d2d31
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/JPB531900095
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 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 0xacd85e8e33d6a94d7e04a61b3a37fc6af28bc33545aa9567c51430838d9d2d31. 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/JPB531900095.
  date published: 2026-07-05T10:01:46Z
audio: ニュートラル
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.011
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.792
  additional property: Energy
    type: PropertyValue
    value: 0.277
  additional property: Speechiness
    type: PropertyValue
    value: 0.054
  additional property: Acousticness
    type: PropertyValue
    value: 0.892
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.048
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.719
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.123
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Air Ni Ni
type: MusicAlbum
date published: 2019-11-13

エアにに
type: MusicAlbum
date published: 2019-11-13

Air Ni Ni
type: MusicAlbum
date published: 2019-11-13

Air Ni Ni
type: MusicAlbum
date published: 2019-11-30
track: Stamens, Pistils, Parties
  type: MusicRecording
  duration: PT5M37S
  duration ms: 337385
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Air Ni Ni
    type: MusicAlbum
    date published: 2019-11-30
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900091
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T15:45:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd73c8fbad5cf7a13bc510c8f873bd1ed5e55fc724c3265f18563ee5b2fb98832
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957876
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957876
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900091
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T16:00:32Z
  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 0xd73c8fbad5cf7a13bc510c8f873bd1ed5e55fc724c3265f18563ee5b2fb98832. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/JPB531900091.
    date published: 2026-07-13T16:00:32Z
  audio: Stamens, Pistils, Parties
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 113.992
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.409
    additional property: Energy
      type: PropertyValue
      value: 0.592
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.266
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.027
    additional property: Liveness
      type: PropertyValue
      value: 0.119
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.193
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.203
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Evil Things
  type: MusicRecording
  duration: PT6M45S
  duration ms: 405293
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Air Ni Ni
    type: MusicAlbum
    date published: 2019-11-30
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900092
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T15:36:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc4db5495ba0cbe624f78fdc0d9432a16bd8411d0bf734853616741381c12ba49
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957874
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957874
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900092
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T15:43:57Z
  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 0xc4db5495ba0cbe624f78fdc0d9432a16bd8411d0bf734853616741381c12ba49. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/JPB531900092.
    date published: 2026-07-13T15:43:57Z
  audio: Evil Things
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.897
    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: 0.194
    additional property: Energy
      type: PropertyValue
      value: 0.916
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.014
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.037
    additional property: Liveness
      type: PropertyValue
      value: 0.351
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.274
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.817
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Itsukushii Hibi
  type: MusicRecording
  duration: PT7M12S
  duration ms: 432289
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Air Ni Ni
    type: MusicAlbum
    date published: 2019-11-30
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900093
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T17:44:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x086ea1358c2b679015a859f535cbad85c39dbd8b7868212fdc18f1dd01ec9fce
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Itsukushii Hibi
track: Neutral

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958180

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958180

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900093

OTSTimestamp
type: PropertyValue
value: 2026-07-15T17:59:52Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086ea1358c2b679015a859f535cbad85c39dbd8b7868212fdc18f1dd01ec9fce. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/JPB531900093.
date published: 2026-07-15T17:59:52Z

Itsukushii Hibi
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 154.993
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 1
additional property: Danceability
  type: PropertyValue
  value: 0.395
additional property: Energy
  type: PropertyValue
  value: 0.887
additional property: Speechiness
  type: PropertyValue
  value: 0.04
additional property: Acousticness
  type: PropertyValue
  value: 0.086
additional property: Instrumentalness
  type: PropertyValue
  value: 0.002
additional property: Liveness
  type: PropertyValue
  value: 0.092
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.101
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.155
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Major

Neutral
type: MusicRecording
duration: PT3M35S
duration ms: 215388
explicit: false
by artist: Hakushi Hasegawa
in album: Air Ni Ni
  type: MusicAlbum
  date published: 2019-11-30
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900095
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-29T09:12:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacd85e8e33d6a94d7e04a61b3a37fc6af28bc33545aa9567c51430838d9d2d31
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/JPB531900095
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 0xacd85e8e33d6a94d7e04a61b3a37fc6af28bc33545aa9567c51430838d9d2d31. 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/JPB531900095.
  date published: 2026-07-02T16:51:38Z
audio: Neutral
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.015
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.792
  additional property: Energy
    type: PropertyValue
    value: 0.278
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.889
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.038
  additional property: Liveness
    type: PropertyValue
    value: 0.357
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.716
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.124
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Somoku Hodo
type: MusicAlbum
date published: 2019-12-12

Sea Change
type: MusicAlbum
date published: 2020-05-28

シー・チェンジ
type: MusicAlbum
date published: 2020-05-28

Bones of Dreams Attacked!
type: MusicAlbum
date published: 2020-05-29

Bones of Dreams Attacked!
type: MusicAlbum
date published: 2020-05-29
track: Tabino Nakade
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248853
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Bones of Dreams Attacked!
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900435
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:12:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1821f8af793c26ec4c0db5c88d55d422f555d15891c62096acd9c5519e09c097
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900435
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  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 0x1821f8af793c26ec4c0db5c88d55d422f555d15891c62096acd9c5519e09c097. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPB531900435.
    date published: 2026-07-04T10:04:33Z
  audio: Tabino Nakade
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.484
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.415
    additional property: Energy
      type: PropertyValue
      value: 0.082
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.925
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.057
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.092
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.098
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Hikari No Rock
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225146
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Bones of Dreams Attacked!
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T17:27:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958373
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958373
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900437
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T06:09:33Z
  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 0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/JPB531900437.
    date published: 2026-07-17T06:09:33Z
  audio: Hikari No Rock
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.387
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.339
    additional property: Energy
      type: PropertyValue
      value: 0.398
    additional property: Speechiness
      type: PropertyValue
      value: 0.053
    additional property: Acousticness
      type: PropertyValue
      value: 0.945
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.248
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.247
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.763
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 1000 & 0
  type: MusicRecording
  duration: PT4M49S
  duration ms: 289413
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Bones of Dreams Attacked!
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900438
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T11:00:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 1000 & 0
track: A Whole New World

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956711

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956711

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900438

OTSTimestamp
type: PropertyValue
value: 2026-07-04T22:48:52Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/JPB531900438.
date published: 2026-07-04T22:48:52Z

1000 & 0
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 120.228
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: 0.465
additional property: Energy
  type: PropertyValue
  value: 0.113
additional property: Speechiness
  type: PropertyValue
  value: 0.047
additional property: Acousticness
  type: PropertyValue
  value: 0.896
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.106
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.184
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.558
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

A Whole New World
type: MusicRecording
duration: PT4M48S
duration ms: 288240
explicit: false
by artist: Hakushi Hasegawa
in album: Bones of Dreams Attacked!
  type: MusicAlbum
  date published: 2020-05-29
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900440
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T06:34:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x40301d2becca6bdc5691b404a89ea80f6aad60eaaae9c0ac95ff69521c7579c5
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/JPB531900440
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 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 0x40301d2becca6bdc5691b404a89ea80f6aad60eaaae9c0ac95ff69521c7579c5. 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/JPB531900440.
  date published: 2026-07-05T10:01:46Z
audio: A Whole New World
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.076
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.408
  additional property: Energy
    type: PropertyValue
    value: 0.064
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.84
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.574
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.081
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.408
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

夢の骨が襲いかかる！
type: MusicAlbum
date published: 2020-05-29
track: Freeway
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190506
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900434
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b90fffed3c6aff463c7221d78fdfdad944ef8660e83ba531b22901a763e10e5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958985
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958985
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900434
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T08:39:15Z
  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 0x6b90fffed3c6aff463c7221d78fdfdad944ef8660e83ba531b22901a763e10e5. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/JPB531900434.
    date published: 2026-07-21T08:39:15Z
  audio: Freeway
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.384
    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: 0.485
    additional property: Energy
      type: PropertyValue
      value: 0.118
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.816
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.458
    additional property: Liveness
      type: PropertyValue
      value: 0.061
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.512
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.232
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 旅の中で
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248853
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900435
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T00:12:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1821f8af793c26ec4c0db5c88d55d422f555d15891c62096acd9c5519e09c097
  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/JPB531900435
  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 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 0x1821f8af793c26ec4c0db5c88d55d422f555d15891c62096acd9c5519e09c097. 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/JPB531900435.
    date published: 2026-07-06T01:25:57Z
  audio: 旅の中で
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.484
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.415
    additional property: Energy
      type: PropertyValue
      value: 0.082
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.925
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.057
    additional property: Liveness
      type: PropertyValue
      value: 0.11
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.092
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.098
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: LOVEずっきゅん
  type: MusicRecording
  duration: PT2M3S
  duration ms: 123866
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900436
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T12:10:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xce6f803c5a0ad606bce973ae371436ae87a83741cc06f213003bf3ae2a5354d9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: LOVEずっきゅん
track: 光のロック
track: セントレイ
track: シー・チェンジ

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956545

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900436

OTSTimestamp
type: PropertyValue
value: 2026-07-03T19:59:51Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6f803c5a0ad606bce973ae371436ae87a83741cc06f213003bf3ae2a5354d9. 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/JPB531900436.
date published: 2026-07-03T19:59:51Z

LOVEずっきゅん
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 100.536
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: 0.607
additional property: Energy
  type: PropertyValue
  value: 0.382
additional property: Speechiness
  type: PropertyValue
  value: 0.078
additional property: Acousticness
  type: PropertyValue
  value: 0.673
additional property: Instrumentalness
  type: PropertyValue
  value: 0.112
additional property: Liveness
  type: PropertyValue
  value: 0.112
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.927
additional property: Loudness (dB)
  type: PropertyValue
  value: -13.211
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
  value: Major

光のロック
type: MusicRecording
duration: PT3M45S
duration ms: 225146
explicit: false
by artist: Hakushi Hasegawa
in album: 夢の骨が襲いかかる！
  type: MusicAlbum
  date published: 2020-05-29
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900437
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958842
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958842
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900437
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T07:48:27Z
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 0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/JPB531900437.
  date published: 2026-07-20T07:48:27Z
audio: 光のロック
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 92.387
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.339
  additional property: Energy
    type: PropertyValue
    value: 0.398
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.248
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.247
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.763
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

セントレイ
type: MusicRecording
duration: PT4M49S
duration ms: 289413
explicit: false
by artist: Hakushi Hasegawa
in album: 夢の骨が襲いかかる！
  type: MusicAlbum
  date published: 2020-05-29
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900438
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T11:00:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956776
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956776
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900438
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T10:59:37Z
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 0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPB531900438.
  date published: 2026-07-05T10:59:37Z
audio: セントレイ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.228
  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: 0.465
  additional property: Energy
    type: PropertyValue
    value: 0.113
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.896
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.184
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.558
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

シー・チェンジ
type: MusicRecording
duration: PT5M15S
duration ms: 315480
explicit: false
by artist: Hakushi Hasegawa
in album: 夢の骨が襲いかかる！
  type: MusicAlbum
  date published: 2020-05-29
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900439
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-02T21:46:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3f40ddbfdae978eec51528f73bf7271d29e410b2433772993fae9010330de19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956420
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956420
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900439
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-03T00:42:11Z
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 0xc3f40ddbfdae978eec51528f73bf7271d29e410b2433772993fae9010330de19. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPB531900439.
  date published: 2026-07-03T00:42:11Z
audio: シー・チェンジ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.946
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.561
  additional property: Energy
    type: PropertyValue
    value: 0.113
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.944
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.162
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.426
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

夢の骨が襲いかかる！
type: MusicAlbum
date published: 2020-05-29
track: Freeway
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190506
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900434
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T10:07:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6b90fffed3c6aff463c7221d78fdfdad944ef8660e83ba531b22901a763e10e5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958864
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958864
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900434
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T10:24:04Z
  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 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 0x6b90fffed3c6aff463c7221d78fdfdad944ef8660e83ba531b22901a763e10e5. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/JPB531900434.
    date published: 2026-07-20T10:24:04Z
  audio: Freeway
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.037
    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: 0.541
    additional property: Energy
      type: PropertyValue
      value: 0.126
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.824
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.501
    additional property: Liveness
      type: PropertyValue
      value: 0.061
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.531
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.635
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: LOVEずっきゅん
  type: MusicRecording
  duration: PT2M3S
  duration ms: 123866
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900436
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T12:10:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xce6f803c5a0ad606bce973ae371436ae87a83741cc06f213003bf3ae2a5354d9
  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/JPB531900436
  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 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 0xce6f803c5a0ad606bce973ae371436ae87a83741cc06f213003bf3ae2a5354d9. 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/JPB531900436.
    date published: 2026-07-05T01:12:41Z
  audio: LOVEずっきゅん
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.81
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.634
    additional property: Energy
      type: PropertyValue
      value: 0.381
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0.673
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.12
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.915
    additional property: Loudness (dB)
      type: PropertyValue
      value: -13.21
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 光のロック
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225146
  explicit: false
  by artist: Hakushi Hasegawa
  in album: 夢の骨が襲いかかる！
    type: MusicAlbum
    date published: 2020-05-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB531900437
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959155
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: 光のロック
track: セントレイ

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/959155

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900437

OTSTimestamp
type: PropertyValue
value: 2026-07-22T16:43:41Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558101a8510ea44d0d28a0bd4b162685cbc466da766d8660bf94900c182ad755. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/JPB531900437.
date published: 2026-07-22T16:43:41Z

光のロック
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 116.506
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.403
additional property: Energy
  type: PropertyValue
  value: 0.398
additional property: Speechiness
  type: PropertyValue
  value: 0.049
additional property: Acousticness
  type: PropertyValue
  value: 0.945
additional property: Instrumentalness
  type: PropertyValue
  value: 0.255
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.25
additional property: Loudness (dB)
  type: PropertyValue
  value: -12.763
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

セントレイ
type: MusicRecording
duration: PT4M49S
duration ms: 289413
explicit: false
by artist: Hakushi Hasegawa
in album: 夢の骨が襲いかかる！
  type: MusicAlbum
  date published: 2020-05-29
genre: breakcore
genre: japanese indie
genre: shibuya-kei
isrc code: JPB531900438
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T11:00:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956889
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956889
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB531900438
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T06:56:49Z
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 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 0xf406f09d965c7acc66f3c652a99c074e672d9ab28c5fdce3fece04c8353016de. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPB531900438.
  date published: 2026-07-06T06:56:49Z
audio: セントレイ
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.731
  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: 0.462
  additional property: Energy
    type: PropertyValue
    value: 0.121
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.948
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Bones of Dreams Attacked!
type: MusicAlbum
date published: 2020-05-29

巣食いのて
type: MusicAlbum
date published: 2021-06-18

わたしをみて
type: MusicAlbum
date published: 2021-07-09

ユニ
type: MusicAlbum
date published: 2021-10-22

Mouth Flash (Kuchinohanabi)
type: MusicAlbum
date published: 2023-07-25

オレは死んじまったゼ！ (オリジナル・サウンドトラック)
type: MusicAlbum
date published: 2023-10-04
track: 帰って来たヨッパライ
  type: MusicRecording
  duration: PT4M15S
  duration ms: 255335
  explicit: false
  by artist: Hakushi Hasegawa
  in album: オレは死んじまったゼ！ (オリジナル・サウンドトラック)
    type: MusicAlbum
    date published: 2023-10-04
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB532300051
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T06:47:29+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0bba8956c870c1fcad6f15129606a1997b081c9a7ff44d5efbde4556a3c5e136
  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/JPB532300051
  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 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 0x0bba8956c870c1fcad6f15129606a1997b081c9a7ff44d5efbde4556a3c5e136. 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/JPB532300051.
    date published: 2026-07-05T10:01:46Z
  audio: 帰って来たヨッパライ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.331
    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: 0.379
    additional property: Energy
      type: PropertyValue
      value: 0.758
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.055
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.036
    additional property: Liveness
      type: PropertyValue
      value: 0.351
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.517
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.145
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 霊位
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280933
  explicit: false
  by artist: Hakushi Hasegawa
  in album: オレは死んじまったゼ！ (オリジナル・サウンドトラック)
    type: MusicAlbum
    date published: 2023-10-04
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPB532300057
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T23:08:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x08cb57542d36acefe5fca633f81397caadb574c718061fb42b45768e4cf6e371
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958796
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958796
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB532300057
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T00:01:46Z
  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 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 0x08cb57542d36acefe5fca633f81397caadb574c718061fb42b45768e4cf6e371. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/JPB532300057.
    date published: 2026-07-20T00:01:46Z
  audio: 霊位
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.798
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 1
    additional property: Danceability
      type: PropertyValue
      value: 0.746
    additional property: Energy
      type: PropertyValue
      value: 0.318
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.701
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.019
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.85
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.851
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Boy’s Texture
type: MusicAlbum
date published: 2024-05-09
track: Boy’s Texture
  type: MusicRecording
  duration: PT4M4S
  duration ms: 244693
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Boy’s Texture
    type: MusicAlbum
    date published: 2024-05-09
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2400409
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T08:26:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb095fb377528adc7fec3138cc8ef5e9bed290891fbeed5beaabb2c6199ae3808
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958137
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958137
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2400409
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T09:47:57Z
  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 0xb095fb377528adc7fec3138cc8ef5e9bed290891fbeed5beaabb2c6199ae3808. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBCFB2400409.
    date published: 2026-07-15T09:47:57Z
  audio: Boy’s Texture
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 159.982
    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: 0.56
    additional property: Energy
      type: PropertyValue
      value: 0.68
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.433
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.191
    additional property: Liveness
      type: PropertyValue
      value: 0.238
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.679
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.399
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Boy’s Texture
type: MusicAlbum
date published: 2024-05-09

Departed
type: MusicAlbum
date published: 2024-05-28
track: Departed
  type: MusicRecording
  duration: PT2M14S
  duration ms: 134367
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Departed
    type: MusicAlbum
    date published: 2024-05-28
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2400574
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T12:33:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf5ee04cbe24d0c42c2ae6bfe8e5bcdf852fbdb628e858d0419a05a93f45f6b1b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958415
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958415
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2400574
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T12:50:13Z
  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 0xf5ee04cbe24d0c42c2ae6bfe8e5bcdf852fbdb628e858d0419a05a93f45f6b1b. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBCFB2400574.
    date published: 2026-07-17T12:50:13Z
  audio: Departed
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.072
    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: 0.586
    additional property: Energy
      type: PropertyValue
      value: 0.872
    additional property: Speechiness
      type: PropertyValue
      value: 0.125
    additional property: Acousticness
      type: PropertyValue
      value: 0.043
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.446
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.457
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.425
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Gone
type: MusicAlbum
date published: 2024-06-11
track: Gone
  type: MusicRecording
  duration: PT2M14S
  duration ms: 134942
  explicit: true
  by artist: Hakushi Hasegawa
  in album: Gone
    type: MusicAlbum
    date published: 2024-06-11
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2400575
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T17:25:25+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x05980997dac5d9dd278e9c1bcf8f920c60d3c2dae0ca6933d3db5e16be2b2548
  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/GBCFB2400575
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T17:59:52Z
  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 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 0x05980997dac5d9dd278e9c1bcf8f920c60d3c2dae0ca6933d3db5e16be2b2548. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/GBCFB2400575.
    date published: 2026-07-15T17:59:52Z
  audio: Gone
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 107.296
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.38
    additional property: Energy
      type: PropertyValue
      value: 0.906
    additional property: Speechiness
      type: PropertyValue
      value: 0.334
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.323
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.589
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.616
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

KYŌFUNOHOSHI
type: MusicAlbum
date published: 2024-07-17
track: KYŌFUNOHOSHI
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224316
  explicit: false
  by artist: Hakushi Hasegawa
  in album: KYŌFUNOHOSHI
    type: MusicAlbum
    date published: 2024-07-17
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2400578
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T16:17:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9be6425275aee6e349cb4df4be589247254b574354b4aff0b91f1e12582493ce
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  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/GBCFB2400578
  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 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 0x9be6425275aee6e349cb4df4be589247254b574354b4aff0b91f1e12582493ce. 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/GBCFB2400578.
    date published: 2026-07-03T19:59:51Z
  audio: KYŌFUNOHOSHI
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.146
    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: 0.477
    additional property: Energy
      type: PropertyValue
      value: 0.791
    additional property: Speechiness
      type: PropertyValue
      value: 0.106
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.396
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.376
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.69
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mahōgakkō
type: MusicAlbum
date published: 2024-07-24
track: Mahōinter (v2)
  type: MusicRecording
  duration: PT0M30S
  duration ms: 30587
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Mahōgakkō
    type: MusicAlbum
    date published: 2024-07-24
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2400581
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T05:33:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd6a9b9ce27d346be7f3c4f79411049c0938aca8c3bc186fa75952a7fb8c2ab09
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958834
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958834
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2400581
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T05:55:47Z
  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 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 0xd6a9b9ce27d346be7f3c4f79411049c0938aca8c3bc186fa75952a7fb8c2ab09. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/GBCFB2400581.
    date published: 2026-07-20T05:55:47Z
  audio: Mahōinter (v2)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 80.538
    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: 0.653
    additional property: Energy
      type: PropertyValue
      value: 0.011
    additional property: Speechiness
      type: PropertyValue
      value: 0.092
    additional property: Acousticness
      type: PropertyValue
      value: 0.913
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.09
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.48
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.043
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Wonderful Christmastime
type: MusicAlbum
date published: 2024-11-29
track: Wonderful Christmastime
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177909
  explicit: false
  by artist: Hakushi Hasegawa
  in album: Wonderful Christmastime
    type: MusicAlbum
    date published: 2024-11-29
  genre: breakcore
  genre: japanese indie
  genre: shibuya-kei
  isrc code: GBCFB2300836
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:21:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc86094371d9fc3635d7546ee6317fa421c63bb6efc28b4f1ba284dfaa49209e1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300836
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 0xc86094371d9fc3635d7546ee6317fa421c63bb6efc28b4f1ba284dfaa49209e1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBCFB2300836.
    date published: 2026-07-03T08:56:35Z
  audio: Wonderful Christmastime
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 110.02
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    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: Acousticness
      type: PropertyValue
      value: 0.915
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.109
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.777
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.746
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

草木 - From THE FIRST TAKE
type: MusicAlbum
date published: 2025-05-22

草木 - From THE FIRST TAKE
type: MusicAlbum
date published: 2025-05-22

Outside (Soto) - From THE FIRST TAKE
type: MusicAlbum
date published: 2025-05-22

Somoku - From THE FIRST TAKE
type: MusicAlbum
date published: 2025-05-22

hikari
type: MusicRecording
duration: PT4M7S
duration ms: 247600
explicit: false
by artist: パソコン音楽クラブ
by artist: Hakushi Hasegawa
in album: Night Flow
  type: MusicAlbum
  date published: 2019-09-04
popularity: 26
genre: vaporwave
genre: shibuya-kei
genre: j-dance
isrc code: JPS801851531
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T20:51:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x09835180a45d6d86bc8b36cf8d9d9bea649337a15235ec727ee1fe1e19361267
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPS801851531
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
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 0x09835180a45d6d86bc8b36cf8d9d9bea649337a15235ec727ee1fe1e19361267. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPS801851531.
  date published: 2026-06-13T15:41:10Z
audio: hikari
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.445
  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: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.537
  additional property: Energy
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    value: 0.895
  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.15
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.22
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.138
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.522
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
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透明稼業
type: MusicRecording
duration: PT4M44S
duration ms: 284106
explicit: false
by artist: HIROBA
by artist: Tahi Saihate
by artist: Soushi Sakiyama
by artist: Hakushi Hasegawa
in album: HIROBA
  type: MusicAlbum
  date published: 2023-02-15
isrc code: JPU902205398
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-30T03:07:02+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x625d0e00c4ed8ed6fa424a264057b375f90805dc9dfda94db39b0a6258af05f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960203
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960203
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU902205398
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T03:35:13Z
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 0x625d0e00c4ed8ed6fa424a264057b375f90805dc9dfda94db39b0a6258af05f6. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPU902205398.
  date published: 2026-07-30T03:35:13Z
audio: 透明稼業
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.548
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.321
  additional property: Energy
    type: PropertyValue
    value: 0.245
  additional property: Speechiness
    type: PropertyValue
    value: 0.073
  additional property: Acousticness
    type: PropertyValue
    value: 0.209
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.1
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.174
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.277
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Toumeikagyou
type: MusicRecording
duration: PT4M46S
duration ms: 286106
explicit: false
by artist: HIROBA
by artist: Tahi Saihate
by artist: Soushi Sakiyama
by artist: Hakushi Hasegawa
in album: OTOGIBANASHI
  type: MusicAlbum
  date published: 2021-10-27
isrc code: TCJPQ2105724
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T07:36:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc453ed8cbaab38ca2b50a970f76f93830899f1f9022df6622bd07ff8567af6f7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960368
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960368
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPQ2105724
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T08:26:41Z
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 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 0xc453ed8cbaab38ca2b50a970f76f93830899f1f9022df6622bd07ff8567af6f7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/TCJPQ2105724.
  date published: 2026-07-31T08:26:41Z
audio: Toumeikagyou
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.282
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.375
  additional property: Energy
    type: PropertyValue
    value: 0.243
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.235
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.206
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.762
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

会いたいね｡ﾟ(ﾟ´ω`ﾟ)ﾟ｡ - feat.長谷川白紙 [2025 Remaster]
type: MusicRecording
duration: PT3M53S
duration ms: 233466
explicit: false
by artist: Tokyo Ska Paradise Orchestra
by artist: Hakushi Hasegawa
in album: NO BORDER HITS 2025→2001 ～ベスト・オブ・東京スカパラダイスオーケストラ～
  type: MusicAlbum
  date published: 2025-03-19
isrc code: JPB602100557
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T14:43:56+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf943f2b01a66d30d6996e6f00c90c2915eac7170cafcbcf10f329347c341968
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/JPB602100557
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 0xcf943f2b01a66d30d6996e6f00c90c2915eac7170cafcbcf10f329347c341968. 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/JPB602100557.
  date published: 2026-07-02T03:30:09Z
audio: 会いたいね｡ﾟ(ﾟ´ω`ﾟ)ﾟ｡ - feat.長谷川白紙 [2025 Remaster]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.608
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.559
  additional property: Energy
    type: PropertyValue
    value: 0.945
  additional property: Speechiness
    type: PropertyValue
    value: 0.089
  additional property: Acousticness
    type: PropertyValue
    value: 0.002
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.31
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.567
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.898
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

youth (feat. Hakushi Hasegawa)
type: MusicRecording
duration: PT3M26S
duration ms: 206920
explicit: false
by artist: KID FRESINO
by artist: Hakushi Hasegawa
in album: 20,Stop it.
  type: MusicAlbum
  date published: 2021-01-06
isrc code: JPJ902013910
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T18:22:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x626c7ce2d4a993a061458b39c302485936d32f44dd452c0c5237f61616a975e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902013910
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x626c7ce2d4a993a061458b39c302485936d32f44dd452c0c5237f61616a975e7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902013910.
  date published: 2026-06-13T12:53:06Z
audio: youth (feat. Hakushi Hasegawa)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.775
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.756
  additional property: Energy
    type: PropertyValue
    value: 0.534
  additional property: Speechiness
    type: PropertyValue
    value: 0.132
  additional property: Acousticness
    type: PropertyValue
    value: 0.66
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.281
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.652
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.525
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
    value: Major

hikari - imai remix
type: MusicRecording
duration: PT3M35S
duration ms: 215895
explicit: false
by artist: パソコン音楽クラブ
by artist: imai
by artist: Hakushi Hasegawa
in album: Night Flow Remixes
  type: MusicAlbum
  date published: 2019-10-26
genre: vaporwave
genre: shibuya-kei
genre: j-dance
isrc code: TCJPJ1986673
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-29T16:13:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf4902653ce5842f2d8e1f7bb1f1b43e18a8dffbac42824c1ba1407d144e4258
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960138
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960138
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ1986673
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T19:35:34Z
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 0xcf4902653ce5842f2d8e1f7bb1f1b43e18a8dffbac42824c1ba1407d144e4258. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPJ1986673.
  date published: 2026-07-29T19:35:34Z
audio: hikari - imai remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 157.426
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.564
  additional property: Energy
    type: PropertyValue
    value: 0.964
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.337
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.003
  additional property: Liveness
    type: PropertyValue
    value: 0.057
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.848
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.34
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

会いたいね｡ﾟ(ﾟ´ω`ﾟ)ﾟ｡ - feat.長谷川白紙 [2025 Remaster]
type: MusicRecording
duration: PT3M53S
duration ms: 233466
explicit: false
by artist: Tokyo Ska Paradise Orchestra
by artist: Hakushi Hasegawa
in album: NO BORDER HITS 2025→2001 ～ベスト・オブ・東京スカパラダイスオーケストラ～
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  date published: 2025-03-19
isrc code: JPB602500340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602500340
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 0x927d421a64b81cf03b57e16f2a8e3b314848d7eb4b310f0e8bb5fe9ebb5034d1. 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/JPB602500340.
  date published: 2026-07-02T03:30:09Z
audio: 会いたいね｡ﾟ(ﾟ´ω`ﾟ)ﾟ｡ - feat.長谷川白紙 [2025 Remaster]
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.615
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.557
  additional property: Energy
    type: PropertyValue
    value: 0.945
  additional property: Speechiness
    type: PropertyValue
    value: 0.108
  additional property: Acousticness
    type: PropertyValue
    value: 0.008
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.007
  additional property: Liveness
    type: PropertyValue
    value: 0.272
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.556
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.902
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major