Tokyo piano sound factory
type: MusicGroup
popularity: 27
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xaafc5a1703ba9f9d1de5d796c138c7ac4efa313bb492998c288cb57915b776b0
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/83db9744-45d2-4463-9ee5-3053c1957068
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafc5a1703ba9f9d1de5d796c138c7ac4efa313bb492998c288cb57915b776b0. 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/83db9744-45d2-4463-9ee5-3053c1957068.json and https://artists.proofprofile.net/proofs/artist/83db9744-45d2-4463-9ee5-3053c1957068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
  track: YORUNI KAKERU - Piano Cover
    type: MusicRecording
    duration: PT4M57S
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    by artist: Tokyo piano sound factory
    in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
      type: MusicAlbum
      date published: 2022-06-09
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    additional property: CopyrightStatus
      type: PropertyValue
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      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211431
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e7cb4a62baea222ca2b79577f20f7b59637938070c56bae73ba2086fa02930. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCJPS2211431.
      date published: 2026-07-18T04:13:26Z
    audio: YORUNI KAKERU - Piano Cover
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      additional property: Time Signature
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Mode Name
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  track: GUNJOU - Piano Cover
    type: MusicRecording
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    by artist: Tokyo piano sound factory
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      type: MusicAlbum
      date published: 2022-06-09
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    additional property: OTSVerificationAPI
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    additional property: OTSTimestamp
      type: PropertyValue
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    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de48d77699f17f4b2f5beee1fb322bbf864f26d57d32ff5b15a89215348cbd7. 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/TCJPS2211484.
      date published: 2026-07-05T10:59:37Z
    audio: GUNJOU - Piano Cover
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      additional property: Speechiness
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      additional property: Loudness (dB)
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  track: KAIBUTSU - Piano Cover
  track: MISTER - Piano Cover
  track: SANGENSHOKU - Piano Cover
  track: ANO YUMEO NAZOTTE - Piano Cover
  track: LOVE LETTER - Piano Cover
  track: MOU SUKOSHIDAKE - Piano Cover
  track: HARUJION - Piano Cover
  track: HARUKA - Piano Cover
album: ピアノで聴く 夜に駆ける YORUNI KAKERU Piano Cover
album: PIano De Kiku J-POP Ultra Hit 1 J-POP ULTRA HIT SONG PIANO COVER VOL.1 J-POP Ultra Hits REIWA NO KYOKU
album: ピアノで聴く J-POPウルトラヒット１ J-POP ULTRA HIT SONG PIANO COVER VOL.1 J-POP Ultra Hits 令和の曲
album: PIano De Kiku J-POP Ultra Hit 2 J-POP ULTRA HIT SONG PIANO COVER VOL.2 J-POP Ultra Hits REIWA NO KYOKU
album: ピアノで聴く J-POPウルトラヒット２ J-POP ULTRA HIT SONG PIANO COVER VOL.2 J-POP Ultra Hits 令和の曲
album: PIano De Kiku J-POP Ultra Hit 3 J-POP ULTRA HIT SONG PIANO COVER VOL.3 J-POP Ultra Hits REIWA NO KYOKU
album: ピアノで聴く J-POPウルトラヒット３ J-POP ULTRA HIT SONG PIANO COVER VOL.3 J-POP Ultra Hits 令和の曲
album: ピアノで聴く J-POPウルトラヒット４ J-POP ULTRA HIT SONG PIANO COVER VOL.4 J-POP Ultra Hits 令和の曲
album: PIano De Kiku J-POP Ultra Hit 4 J-POP ULTRA HIT SONG PIANO COVER VOL.4 J-POP Ultra Hits REIWA NO KYOKU
album: PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 1 ANIME THEME SONG PIANO COVER VOL.1
album: PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 2 ANIME THEME SONG PIANO COVER VOL.2
album: ピアノで聴く 超人気アニメ映画 主題歌シリーズ１ ANIME THE MOVIE THEME SONG PIANO COVER VOL.1
album: ピアノで聴く 超人気アニメ 主題歌シリーズ２ ANIME THEME SONG PIANO COVER VOL.2
album: PIANO DE KIKU CHOUNINKI ANIME EIGA SHUDAIKA SERIES 1 ANIME THE MOVIE THEME SONG PIANO COVER VOL.1
album: ピアノで聴く 超人気アニメ 主題歌シリーズ１ ANIME THEME SONG PIANO COVER VOL.1
album: ピアノで聴く 韓流ドラマシリーズ１ 梨泰院クラス ITAEWON CLASS SOUND TRACK PIANO COVER
album: PIANO DE KIKU KOREAN DORAMA SERIES1 ITAEWON CLASS ITAEWON CLASS SOUND TRACK PIANO COVER
album: 新時代 (Piano Cover)
album: SHINJIDAI (Piano Cover)
album: PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 4 ANIME THEME SONG PIANO COVER VOL.4
album: ピアノで聴く 超人気アニメ 主題歌シリーズ４ ANIME THEME SONG PIANO COVER VOL.4
album: PIano De Kiku J-POP Ultra Hit 5 J-POP ULTRA HIT SONG PIANO COVER VOL.5 J-POP Ultra Hits REIWA NO KYOKU
album: ピアノで聴く J-POPウルトラヒット５ J-POP ULTRA HIT SONG PIANO COVER VOL.5 J-POP Ultra Hits 令和の曲
album: KOKORONO CHIZU (PianoCover)
album: 青と夏 (Piano Cover)
album: W / X / Y (Piano Cover)
album: AOTO NATSU (Piano Cover)
album: プロローグ (Piano Cover)
album: Believe (Piano Cover)
album: ウィーアー！ (PianoCover)
album: ココロのちず (PianoCover)
album: WE ARE (PianoCover)
album: prologue (Piano Cover)
album: クロノスタシス (Piano Cover)
album: Chronostasis (Piano Cover)
album: サザンカ (Piano Cover)
album: SAZANKA (Piano Cover)
album: それを愛と呼ぶなら (Piano Cover)
album: スーパー・ヒーロー (Piano Cover)
album: ルパン三世 愛のテーマ (Piano Cover)
album: Walking with you (Piano Cover)
album: サンバ・テンペラード (Piano Cover)
album: THEME FROM LUPIN III (Piano Cover)
album: love squall (Piano Cover)
album: 朝が来る (Piano Cover)
album: HONOONO TAKARAMONO (Piano Cover)
album: MANHATTAN JOKE (Piano Cover)
album: Bye-Good-Bye (Piano Cover)
album: ASAGA KURU (Piano Cover)
album: 炎のたからもの (Piano Cover)
album: 銭形マーチ (Piano Cover)
album: Mela! (Piano Cover)
album: ルパン三世のテーマ (Piano Cover)
album: ラブ・スコール (Piano Cover)
album: SOREOAITOYOBUNARA (Piano Cover)
album: Lupine III love theme (Piano Cover)
album: samba temperado (Piano Cover)
album: Zenigata March (Piano Cover)
album: super hero (Piano Cover)
album: ピアノで聴く 超人気アニメ映画 主題歌シリーズ２ ANIME THE MOVIE THEME SONG PIANO COVER VOL.2
album: ウタカタララバイ (Piano Cover)
album: PIANO DE KIKU CHOUNINKI ANIME MOVIE THEME SONG SERIES 2 ANIME THE MOVIE THEME SONG PIANO COVER VOL.2
album: 風のゆくえ (Piano Cover)
album: UTAKATA RARABAI (Piano Cover)

Key Name
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value: Bb

Mode Name
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KAIBUTSU - Piano Cover
type: MusicRecording
duration: PT4M15S
duration ms: 255811
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211485
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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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
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211485
additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff91a7e67f4d218ac5017f445fa7738f015c84f594e143f0ca641e47d80cd6a1. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:50:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211485.
  date published: 2026-07-19T15:50:16Z
audio: KAIBUTSU - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.36
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
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  additional property: Mode Name
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MISTER - Piano Cover
type: MusicRecording
duration: PT3M24S
duration ms: 204564
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211488
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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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
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf00c676efe9c614e2a1077292bc9b05c49f2f893c549841a3c85de0b8df603. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:34Z), 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/TCJPS2211488.
  date published: 2026-07-20T21:34:34Z
audio: MISTER - Piano Cover
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    type: PropertyValue
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  additional property: Key Name
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SANGENSHOKU - Piano Cover
type: MusicRecording
duration: PT4M18S
duration ms: 258622
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
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  date published: 2022-06-09
isrc code: TCJPS2211489
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79711893f2711d6f14d8eea128cdbf6f8605bc92ae72932425e630bad0046d6. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211489.
  date published: 2026-07-20T17:53:56Z
audio: SANGENSHOKU - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.001
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.615
  additional property: Energy
    type: PropertyValue
    value: 0.242
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.127
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.396
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.191
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ANO YUMEO NAZOTTE - Piano Cover
type: MusicRecording
duration: PT5M27S
duration ms: 327235
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211491
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T17:09:03+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8467fb508d9ee5d139e95edc72347770b8b8bcf92457b1d3842782549de24719
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958761
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958761
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211491
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:08:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8467fb508d9ee5d139e95edc72347770b8b8bcf92457b1d3842782549de24719. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:08:41Z), 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/TCJPS2211491.
  date published: 2026-07-19T20:08:41Z
audio: ANO YUMEO NAZOTTE - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.923
  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: 0.685
  additional property: Energy
    type: PropertyValue
    value: 0.322
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.983
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.803
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.289
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.513
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major

LOVE LETTER - Piano Cover
type: MusicRecording
duration: PT3M33S
duration ms: 213459
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211501
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T23:41:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05d5fcae971b4ecde05552b3ca99a538ff4387eaaf8794ee0b11bb0afd62017b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958942
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958942
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211501
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T00:24:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d5fcae971b4ecde05552b3ca99a538ff4387eaaf8794ee0b11bb0afd62017b. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/TCJPS2211501.
  date published: 2026-07-21T00:24:07Z
audio: LOVE LETTER - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.006
  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: 0.581
  additional property: Energy
    type: PropertyValue
    value: 0.271
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.967
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.914
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.36
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.318
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

MOU SUKOSHIDAKE - Piano Cover
type: MusicRecording
duration: PT3M43S
duration ms: 223235
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211504
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T12:59:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9727c6aebeff9fb8fc5c8c7afec938d70b871a70c349c2098a0de4d055e70154
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958736
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958736
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211504
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T16:01:58Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9727c6aebeff9fb8fc5c8c7afec938d70b871a70c349c2098a0de4d055e70154. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T16:01:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211504.
  date published: 2026-07-19T16:01:58Z
audio: MOU SUKOSHIDAKE - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.045
  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: 0.51
  additional property: Energy
    type: PropertyValue
    value: 0.294
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.975
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.82
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.514
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.301
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

HARUJION - Piano Cover
type: MusicRecording
duration: PT3M28S
duration ms: 208605
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211511
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T17:09:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xafa8bf1312f88c3bc50d0cccb7fc73ad04b9d6f39d7d3e34d48da8fc195332e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958761
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958761
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211511
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T20:08:44Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa8bf1312f88c3bc50d0cccb7fc73ad04b9d6f39d7d3e34d48da8fc195332e0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:08:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211511.
  date published: 2026-07-19T20:08:44Z
audio: HARUJION - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.961
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.555
  additional property: Energy
    type: PropertyValue
    value: 0.348
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.141
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.571
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.282
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

HARUKA - Piano Cover
type: MusicRecording
duration: PT3M55S
duration ms: 235006
explicit: false
by artist: Tokyo piano sound factory
in album: PIANO DE KIKU YORUNIKAKERU YORUNI KAKERU Piano Cover
  type: MusicAlbum
  date published: 2022-06-09
isrc code: TCJPS2211515
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T06:41:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xae429f4b3d89f7106b1492d33389e197603caf05f77e0c67cb2b28c5e1bebe8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211515
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae429f4b3d89f7106b1492d33389e197603caf05f77e0c67cb2b28c5e1bebe8b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211515.
  date published: 2026-07-05T19:27:56Z
audio: HARUKA - Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.625
  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: 0.386
  additional property: Energy
    type: PropertyValue
    value: 0.256
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.854
  additional property: Liveness
    type: PropertyValue
    value: 0.212
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.264
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.025
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

ピアノで聴く 夜に駆ける YORUNI KAKERU Piano Cover
type: MusicAlbum
date published: 2022-06-09
track: 群青 - Piano Cover
  type: MusicRecording
  duration: PT4M41S
  duration ms: 281144
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ピアノで聴く 夜に駆ける YORUNI KAKERU Piano Cover
    type: MusicAlbum
    date published: 2022-06-09
  isrc code: TCJPS2211484
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T05:03:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4de48d77699f17f4b2f5beee1fb322bbf864f26d57d32ff5b15a89215348cbd7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956859
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956859
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2211484
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:42:12Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de48d77699f17f4b2f5beee1fb322bbf864f26d57d32ff5b15a89215348cbd7. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/TCJPS2211484.
    date published: 2026-07-06T01:42:12Z
  audio: 群青 - Piano Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.011
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.622
    additional property: Energy
      type: PropertyValue
      value: 0.396
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.981
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.831
    additional property: Liveness
      type: PropertyValue
      value: 0.154
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.409
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.585
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: ハルカ - Piano Cover
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235006
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ピアノで聴く 夜に駆ける YORUNI KAKERU Piano Cover
    type: MusicAlbum
    date published: 2022-06-09
  isrc code: TCJPS2211515
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T06:41:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xae429f4b3d89f7106b1492d33389e197603caf05f77e0c67cb2b28c5e1bebe8b
  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/TCJPS2211515
  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
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PIano De Kiku J-POP Ultra Hit 1 J-POP ULTRA HIT SONG PIANO COVER VOL.1 J-POP Ultra Hits REIWA NO KYOKU
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date published: 2022-07-06

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PIano De Kiku J-POP Ultra Hit 2 J-POP ULTRA HIT SONG PIANO COVER VOL.2 J-POP Ultra Hits REIWA NO KYOKU
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ピアノで聴く J-POPウルトラヒット２ J-POP ULTRA HIT SONG PIANO COVER VOL.2 J-POP Ultra Hits 令和の曲
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PIano De Kiku J-POP Ultra Hit 3 J-POP ULTRA HIT SONG PIANO COVER VOL.3 J-POP Ultra Hits REIWA NO KYOKU
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  subject of: OpenTimestamps Proof of Existence
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T12:15:48Z
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ピアノで聴く J-POPウルトラヒット４ J-POP ULTRA HIT SONG PIANO COVER VOL.4 J-POP Ultra Hits 令和の曲
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PIano De Kiku J-POP Ultra Hit 4 J-POP ULTRA HIT SONG PIANO COVER VOL.4 J-POP Ultra Hits REIWA NO KYOKU
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PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 1 ANIME THEME SONG PIANO COVER VOL.1
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PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 2 ANIME THEME SONG PIANO COVER VOL.2
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ピアノで聴く 超人気アニメ映画 主題歌シリーズ１ ANIME THE MOVIE THEME SONG PIANO COVER VOL.1
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PIANO DE KIKU CHOUNINKI ANIME EIGA SHUDAIKA SERIES 1 ANIME THE MOVIE THEME SONG PIANO COVER VOL.1
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ピアノで聴く 韓流ドラマシリーズ１ 梨泰院クラス ITAEWON CLASS SOUND TRACK PIANO COVER
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PIANO DE KIKU KOREAN DORAMA SERIES1 ITAEWON CLASS ITAEWON CLASS SOUND TRACK PIANO COVER
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新時代 (Piano Cover)
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SHINJIDAI (Piano Cover)
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PIANO DE KIKU CHOU NINKI ANIME THEME SONG SERIES 4 ANIME THEME SONG PIANO COVER VOL.4
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PIano De Kiku J-POP Ultra Hit 5 J-POP ULTRA HIT SONG PIANO COVER VOL.5 J-POP Ultra Hits REIWA NO KYOKU
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ピアノで聴く J-POPウルトラヒット５ J-POP ULTRA HIT SONG PIANO COVER VOL.5 J-POP Ultra Hits 令和の曲
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KOKORONO CHIZU (PianoCover)
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青と夏 (Piano Cover)
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W / X / Y (Piano Cover)
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AOTO NATSU (Piano Cover)
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プロローグ (Piano Cover)
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Believe (Piano Cover)
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ウィーアー！ (PianoCover)
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ココロのちず (PianoCover)
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WE ARE (PianoCover)
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prologue (Piano Cover)
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Believe (Piano Cover)
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クロノスタシス (Piano Cover)
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Chronostasis (Piano Cover)
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サザンカ (Piano Cover)
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SAZANKA (Piano Cover)
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それを愛と呼ぶなら (Piano Cover)
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スーパー・ヒーロー (Piano Cover)
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ルパン三世 愛のテーマ (Piano Cover)
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Walking with you (Piano Cover)
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サンバ・テンペラード (Piano Cover)
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THEME FROM LUPIN III (Piano Cover)
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Walking with you (Piano Cover)
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love squall (Piano Cover)
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朝が来る (Piano Cover)
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HONOONO TAKARAMONO (Piano Cover)
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MANHATTAN JOKE (Piano Cover)
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Bye-Good-Bye (Piano Cover)
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ASAGA KURU (Piano Cover)
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MANHATTAN JOKE (Piano Cover)
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炎のたからもの (Piano Cover)
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銭形マーチ (Piano Cover)
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Mela! (Piano Cover)
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ルパン三世のテーマ (Piano Cover)
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ラブ・スコール (Piano Cover)
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SOREOAITOYOBUNARA (Piano Cover)
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Mela! (Piano Cover)
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Lupine III love theme (Piano Cover)
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samba temperado (Piano Cover)
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Zenigata March (Piano Cover)
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super hero (Piano Cover)
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Bye-Good-Bye (Piano Cover)
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ピアノで聴く 超人気アニメ映画 主題歌シリーズ２ ANIME THE MOVIE THEME SONG PIANO COVER VOL.2
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ウタカタララバイ (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

PIANO DE KIKU CHOUNINKI ANIME MOVIE THEME SONG SERIES 2 ANIME THE MOVIE THEME SONG PIANO COVER VOL.2
type: MusicAlbum
date published: 2022-10-14

風のゆくえ (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

UTAKATA RARABAI (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

逆光 (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

私は最強 (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

世界のつづき (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

SEKAINO TSUDUKI (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

Tot Musica (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

KAZENOYUKUE (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

WATASHIWASAIKYOU (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

GYAKKOU (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

Tot Musica (Piano Cover)
type: MusicAlbum
date published: 2022-10-14

BRAND NEW WORLD (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

BON VOYAGE! (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

BRAND NEW WORLD (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

HIKARIE (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

WE ARE (Piano Cover) [10th anniversary version]
type: MusicAlbum
date published: 2022-10-20

Share The World (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

Jungle P (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

Crazy Rainbow (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

Crazy Rainbow (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

ヒカリへ (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

ウィーアー！ (Piano Cover) [10周年Ver.]
type: MusicAlbum
date published: 2022-10-20

BON VOYAGE！ (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

Share The World (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

Jungle P (Piano Cover)
type: MusicAlbum
date published: 2022-10-20

マイフレンド (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

君が好きだと叫びたい (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

ANATADAKE MITSUMETERU (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

SEKAIGA OWARUMADEHA (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

KIMIGASUKIDATO SAKEBITAI (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

あなただけ見つめてる (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

煌めく瞬間に捕われて (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

MY FRIEND (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

KIRAMEKUTOKINI TORAWARETE (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

世界が終るまでは… (Piano Cover)
type: MusicAlbum
date published: 2022-10-21

Hope (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Wake up！ (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Super Powers (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Wake up (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Hard Knock Days (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Super Powers (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

HANDS UP！ (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

WII GOO (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

OVER THE TOP (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

DREAMIN' ON (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Hope (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

OVER THE TOP (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Fight Together (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

ウィーゴ―！ (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

Hard Knock Days (Piano Cover)
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date published: 2022-10-22

HANDS UP (Piano Cover)
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date published: 2022-10-22

Fight Together (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

DREAMIN’ ON (Piano Cover)
type: MusicAlbum
date published: 2022-10-22

ドライフラワー (PIano Cover)
type: MusicAlbum
date published: 2022-10-26

CITRUS (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

PIANO DE KIKU SPORTS ANIME SONG SPORTS ANIME THEME SONG PIANO COVER
type: MusicAlbum
date published: 2022-10-26

Dynamite (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

Stand by me, Stand by you (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

CITRUS (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

カタオモイ (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

WASURENA (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

勿忘 (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

KATAOMOI (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

DRIED FLOWERS (PIano Cover)
type: MusicAlbum
date published: 2022-10-26

BOKUNO KOTO (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

ピアノで聴く スポーツアニメソング SPORTS ANIME THEME SONG PIANO COVER
type: MusicAlbum
date published: 2022-10-26

Stand by me, Stand by you (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

Dynamite (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

僕のこと (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

風をさがして (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

KAZEO SAGASHITE (Piano Cover)
type: MusicAlbum
date published: 2022-10-26

MACHIGAISAGASHI (Piano Cover)
type: MusicAlbum
date published: 2022-10-27

まちがいさがし (Piano Cover)
type: MusicAlbum
date published: 2022-10-27

裸の心 (Piano Cover)
type: MusicAlbum
date published: 2022-10-27

HADAKANO KOKORO (Piano Cover)
type: MusicAlbum
date published: 2022-10-27

三原色 (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

あの夢をなぞって (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

LOVE LETTER (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

KAIBUTSU (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

YORUNI KAKERU (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

ミスター (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

ANO YUMEO NAZOTTE (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

GUNJOU (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

HARUJION (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

ハルジオン (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

HARUKA (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

怪物 (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

もう少しだけ (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

群青 (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

夜に駆ける (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

ハルカ (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

ラブレター (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

SANGENSHOKU (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

MISTER (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

MOU SUKOSHIDAKE (Piano Cover)
type: MusicAlbum
date published: 2022-11-03

J.S.BACH GA FUMINSHOUNINAYAMU HAKUSHAKUNOTAMENIKAITA GOLDBERG VARIATIONS
type: MusicAlbum
date published: 2022-11-23

J.S.バッハが不眠症に悩む伯爵のために書いた ゴルトベルク変奏曲
type: MusicAlbum
date published: 2022-11-23

フリージア (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

一途 (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

Butter (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

猫 (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

DAIMEINO NAI KYOU (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

ベテルギウス (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

INFERNO (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

ICHIZU (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

六等星の夜 (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

NIJI (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

虹 (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

ROKUTOUSEINO YORU (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

インフェルノ (Piano Cover)
type: MusicAlbum
date published: 2022-12-17
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Butter (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

題名のない今日 (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

NEKO (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

FURIIJIA (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

BETERUGIUSU (Piano Cover)
type: MusicAlbum
date published: 2022-12-17

PIANO COVER 懐かしの青春ソング集！！
type: MusicAlbum
date published: 2023-01-14

ピアノで聴く J-POPウルトラヒット６ J-POP ULTRA HIT SONG PIANO COVER VOL.6 J-POP Ultra Hits 令和の曲
type: MusicAlbum
date published: 2023-01-14

PIANO COVER Nostalgic Youth Song Collection!!
type: MusicAlbum
date published: 2023-01-14

Piano De Kiku J-POP Ultra Hit 6 J-POP ULTRA HIT SONG PIANO COVER VOL.6 J-POP Ultra Hits REIWA NO KYOKU
type: MusicAlbum
date published: 2023-01-14

蝶々結び (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

CHOUCHOU MUSUBI (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

TADAKIMINIHARE (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

RE:I AM (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

RE:I AM (Piano Cover)
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date published: 2023-01-18

LEO (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

春を告げる (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

TSUKIMISOU (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

なんでもないよ (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

振り子 (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

KISEKI (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

ただ君に晴れ (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

レオ (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

HYAKUJUGOMANKIRO NO FILM (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

ツキミソウ (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

NANDEMONAIYO (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

HARUWO TSUGERU (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

奇蹟 (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

FURIKO (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

115万キロのフィルム (Piano Cover)
type: MusicAlbum
date published: 2023-01-18

Superstar (Piano Cover)
type: MusicAlbum
date published: 2023-01-20

Yesterday Once More (Piano Cover)
type: MusicAlbum
date published: 2023-01-20

Close To You (Piano Cover)
type: MusicAlbum
date published: 2023-01-20

イエスタデイ・ワンス・モア (Piano Cover)
type: MusicAlbum
date published: 2023-01-20

Sing (Piaon Cover)
type: MusicAlbum
date published: 2023-01-20

遥かなる影 (Piano Cover)
type: MusicAlbum
date published: 2023-01-20

シング (Piaon Cover)
type: MusicAlbum
date published: 2023-01-20

スーパースター (Piano Cover)
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date published: 2023-01-20

Top Of The World (Piano Cover)
type: MusicAlbum
date published: 2023-01-21

雨の日と月曜日は (Piano Cover)
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date published: 2023-01-21

Only Yesterday (Piano Cover)
type: MusicAlbum
date published: 2023-01-21

プリーズ・ミスター・ポストマン (Piano Cover)
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date published: 2023-01-21

JAZZ PIANO ARRANGE DE KIKU CLASSIC NO MEIKYOKU Classic by JAZZ PIANO ARRANGE vol.2
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date published: 2023-01-21

I Need to Be in Love (Piano Cover)
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date published: 2023-01-21

Rainy Days And Mondays (Piano Cover)
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date published: 2023-01-21

トップ・オブ・ザ・ワールド (Piano Cover)
type: MusicAlbum
date published: 2023-01-21

ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
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    additional property: Mode Name
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track: ジムノペディ No.1 - Jazz Piano Cover
  type: MusicRecording
  duration: PT4M6S
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  explicit: false
  by artist: Tokyo piano sound factory
  in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
    type: MusicAlbum
    date published: 2023-01-21
  isrc code: TCJPU2352862
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T01:54:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf9f19c40400a4c35734b123e92aeab9cba6a2ec2c84561f71de8f5ca12365b84
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  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/TCJPU2352862
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f19c40400a4c35734b123e92aeab9cba6a2ec2c84561f71de8f5ca12365b84. 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/TCJPU2352862.
    date published: 2026-07-05T10:01:46Z
  audio: ジムノペディ No.1 - Jazz Piano Cover
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: G線上のアリア - Jazz Piano Cover
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273204
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
    type: MusicAlbum
    date published: 2023-01-21
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9372659e792135ac348c77e89f489362a5f481ad539759b7118810c0a141a4ad
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958594
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352871
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: G線上のアリア - Jazz Piano Cover
track: アヴェ・マリア - Jazz Piano Cover
track: 威風堂々 - Jazz Piano Cover
track: 小犬のワルツ - Jazz Piano Cover
track: アイネ・クライネ・ナハトムジーク〜セレナード第１３番ト長調第２楽章〜 - Jazz Piano Cover
track: トロイメライ - Jazz Piano Cover
track: 野ばら - Jazz Piano Cover
track: くるみ割り人形〜行進曲〜 - Jazz Piano Cover
track: モルダウ - Jazz Piano Cover
track: 亡き王女のためのパヴァーヌ - Jazz Piano Cover
track: ワルツ〜眠れる森の美女より〜 - Jazz Piano Cover
track: 家路〜交響曲第９番 新世界より 第２楽章〜 - Jazz Piano Cover
track: オンブラ・マイ・フ - Jazz Piano Cover
track: 夢想 - Jazz Piano Cover

OTSTimestamp
type: PropertyValue
value: 2026-07-18T18:05:01Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9372659e792135ac348c77e89f489362a5f481ad539759b7118810c0a141a4ad. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TCJPU2352871.
date published: 2026-07-18T18:05:01Z

G線上のアリア - Jazz Piano Cover
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 105.014
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
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additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.659
additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
  type: PropertyValue
  value: 0.989
additional property: Instrumentalness
  type: PropertyValue
  value: 0.858
additional property: Liveness
  type: PropertyValue
  value: 0.191
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.468
additional property: Loudness (dB)
  type: PropertyValue
  value: -17.91
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

アヴェ・マリア - Jazz Piano Cover
type: MusicRecording
duration: PT4M16S
duration ms: 256579
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352907
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/0x2ea2b5ed1bc05dbc7680f084ac8251a99ba743332f99cf34a2283bdd2f7ff808
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956790
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352907
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T00:20:10Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea2b5ed1bc05dbc7680f084ac8251a99ba743332f99cf34a2283bdd2f7ff808. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:20:10Z), 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/TCJPU2352907.
  date published: 2026-07-20T00:20:10Z
audio: アヴェ・マリア - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105.362
  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: 0.445
  additional property: Energy
    type: PropertyValue
    value: 0.231
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.135
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.312
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.451
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

威風堂々 - Jazz Piano Cover
type: MusicRecording
duration: PT1M38S
duration ms: 98869
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352909
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T17:59:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x37d457840d8973980df8f9b24936a7a1a521dd17feec13f3a8c431be21a0d4b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958596
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352909
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T18:42:38Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d457840d8973980df8f9b24936a7a1a521dd17feec13f3a8c431be21a0d4b5. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCJPU2352909.
  date published: 2026-07-18T18:42:38Z
audio: 威風堂々 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 105
  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: 0.82
  additional property: Energy
    type: PropertyValue
    value: 0.164
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.913
  additional property: Liveness
    type: PropertyValue
    value: 0.122
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.553
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.093
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

小犬のワルツ - Jazz Piano Cover
type: MusicRecording
duration: PT2M48S
duration ms: 168018
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352910
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T22:59:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95c0b944282597770f52b0f6aa86b34bfaf0d8bd560d6c4fff1813bb1afc3664
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/TCJPU2352910
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95c0b944282597770f52b0f6aa86b34bfaf0d8bd560d6c4fff1813bb1afc3664. 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/TCJPU2352910.
  date published: 2026-07-05T01:12:41Z
audio: 小犬のワルツ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 129.007
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.551
  additional property: Energy
    type: PropertyValue
    value: 0.359
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.982
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.175
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.407
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.06
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

アイネ・クライネ・ナハトムジーク〜セレナード第１３番ト長調第２楽章〜 - Jazz Piano Cover
type: MusicRecording
duration: PT2M6S
duration ms: 126291
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352911
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T19:45:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7775eb1454805b7d8a241474d22c70c5a4b81bae285a682197969e2102e15301
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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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/TCJPU2352911
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7775eb1454805b7d8a241474d22c70c5a4b81bae285a682197969e2102e15301. 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/TCJPU2352911.
  date published: 2026-07-05T01:12:41Z
audio: アイネ・クライネ・ナハトムジーク〜セレナード第１３番ト長調第２楽章〜 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 85.994
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.229
  additional property: Speechiness
    type: PropertyValue
    value: 0.068
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.922
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.385
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.646
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

トロイメライ - Jazz Piano Cover
type: MusicRecording
duration: PT2M53S
duration ms: 173730
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352914
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T02:12:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2eb69874183fb81aaff82cc1a91c7b9e3d462e1c27002242e78dc160aa2b641f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958808
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352914
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T05:15:02Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb69874183fb81aaff82cc1a91c7b9e3d462e1c27002242e78dc160aa2b641f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:15:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352914.
  date published: 2026-07-20T05:15:02Z
audio: トロイメライ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 172.107
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.598
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.051
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.142
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.443
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.163
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

野ばら - Jazz Piano Cover
type: MusicRecording
duration: PT1M57S
duration ms: 117282
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352915
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T16:50:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcbdef70bbcf5c48fcbced50e53bbb74a2ae656dd7e9812c2dade0b22758e2dbd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958765
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352915
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T18:01:47Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdef70bbcf5c48fcbced50e53bbb74a2ae656dd7e9812c2dade0b22758e2dbd. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCJPU2352915.
  date published: 2026-07-19T18:01:47Z
audio: 野ばら - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 69.734
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.656
  additional property: Energy
    type: PropertyValue
    value: 0.216
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.417
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.883
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

くるみ割り人形〜行進曲〜 - Jazz Piano Cover
type: MusicRecording
duration: PT1M49S
duration ms: 109619
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352916
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T01:49:13+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e464b97326cf505d6464c3cd2fd45a07d69f9f2798b8f22af1a5267ba74bbc8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956790
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956790
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352916
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T00:17:42Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e464b97326cf505d6464c3cd2fd45a07d69f9f2798b8f22af1a5267ba74bbc8. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:17:42Z), 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/TCJPU2352916.
  date published: 2026-07-20T00:17:42Z
audio: くるみ割り人形〜行進曲〜 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.76
  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: 0.372
  additional property: Energy
    type: PropertyValue
    value: 0.239
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.826
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.509
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.797
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

モルダウ - Jazz Piano Cover
type: MusicRecording
duration: PT3M49S
duration ms: 229133
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352919
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T16:22:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ac677a8c8e2913c62752bc119682ca1463634039fe3a9229d5eca362d0bb215
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958601
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958601
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352919
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T19:27:02Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac677a8c8e2913c62752bc119682ca1463634039fe3a9229d5eca362d0bb215. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352919.
  date published: 2026-07-18T19:27:02Z
audio: モルダウ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.02
  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: 0.55
  additional property: Energy
    type: PropertyValue
    value: 0.26
  additional property: Speechiness
    type: PropertyValue
    value: 0.072
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.855
  additional property: Liveness
    type: PropertyValue
    value: 0.144
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.167
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.038
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

亡き王女のためのパヴァーヌ - Jazz Piano Cover
type: MusicRecording
duration: PT3M33S
duration ms: 213273
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352920
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T07:59:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9a288ca7c886fe03d3e5a2c1b956025c45df5fe33bb98c64515afa05a1a302f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958846
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958846
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352920
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T11:01:24Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a288ca7c886fe03d3e5a2c1b956025c45df5fe33bb98c64515afa05a1a302f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:24Z), 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/TCJPU2352920.
  date published: 2026-07-20T11:01:24Z
audio: 亡き王女のためのパヴァーヌ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 87.974
  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: 0.443
  additional property: Energy
    type: PropertyValue
    value: 0.294
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.939
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.225
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.523
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ワルツ〜眠れる森の美女より〜 - Jazz Piano Cover
type: MusicRecording
duration: PT1M38S
duration ms: 98915
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352922
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T19:43:45+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0835a23ef840acc35e43f75eb4627d23cfa3de19bb574e8fe35de802c33ed905
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958774
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958774
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352922
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T22:45:39Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0835a23ef840acc35e43f75eb4627d23cfa3de19bb574e8fe35de802c33ed905. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:45:39Z), 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/TCJPU2352922.
  date published: 2026-07-19T22:45:39Z
audio: ワルツ〜眠れる森の美女より〜 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 67.506
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.763
  additional property: Energy
    type: PropertyValue
    value: 0.254
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0.992
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.874
  additional property: Liveness
    type: PropertyValue
    value: 0.105
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.378
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.295
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

家路〜交響曲第９番 新世界より 第２楽章〜 - Jazz Piano Cover
type: MusicRecording
duration: PT2M51S
duration ms: 171617
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352938
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T07:40:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7f5b92fe0e5ea2f1173c5c5a2ad724276d6651fb8229af082631305d36b6ff2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958846
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958846
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352938
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T10:43:20Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f5b92fe0e5ea2f1173c5c5a2ad724276d6651fb8229af082631305d36b6ff2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:43:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352938.
  date published: 2026-07-20T10:43:20Z
audio: 家路〜交響曲第９番 新世界より 第２楽章〜 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 94.989
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.645
  additional property: Energy
    type: PropertyValue
    value: 0.244
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.155
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.444
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.512
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

オンブラ・マイ・フ - Jazz Piano Cover
type: MusicRecording
duration: PT1M44S
duration ms: 104070
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352939
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T06:51:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93f904f128b3cc516c064bb6364caec6060933d031bf778b840d95dac5111d09
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/TCJPU2352939
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T09:54:25Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-20T09:54:25Z
audio: オンブラ・マイ・フ - Jazz Piano Cover
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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: Liveness
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  additional property: Valence (Positivity)
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夢想 - Jazz Piano Cover
type: MusicRecording
duration: PT2M2S
duration ms: 122762
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.1
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2352940
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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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/958761
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352940
additional property: OTSTimestamp
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  value: 2026-07-19T20:25:50Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb41f4d493540610505719d766807b932b82f493d5616d3e917c756cb954226. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:25:50Z), 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/TCJPU2352940.
  date published: 2026-07-19T20:25:50Z
audio: 夢想 - Jazz Piano Cover
  type: AudioObject
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    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Valence (Positivity)
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ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
type: MusicAlbum
date published: 2023-01-21
track: バッハのメヌエット - Jazz Piano Cover
  type: MusicRecording
  duration: PT1M26S
  duration ms: 86098
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
    type: MusicAlbum
    date published: 2023-01-21
  isrc code: TCJPU2352995
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2352995
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T11:48:10Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4e6ccfbac2a518b4e0c6f8d12ac2ebeaa52eb89158c4c680cd5ffe5709d4f3. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/TCJPU2352995.
    date published: 2026-07-20T11:48:10Z
  audio: バッハのメヌエット - Jazz Piano Cover
    type: AudioObject
    additional property: Tempo (BPM)
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      value: 73.364
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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track: 別れの曲 - Jazz Piano Cover
  type: MusicRecording
  duration: PT2M1S
  duration ms: 121671
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
    type: MusicAlbum
    date published: 2023-01-21
  isrc code: TCJPU2353000
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T11:07:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaf442a1d3d83624ccef901c34c9bd6c6d43f7cf273a17091a7865911f1936003
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf442a1d3d83624ccef901c34c9bd6c6d43f7cf273a17091a7865911f1936003. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:05:22Z), 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/TCJPU2353000.
    date published: 2026-07-20T14:05:22Z
  audio: 別れの曲 - Jazz Piano Cover
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
      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: 愛の挨拶 - Jazz Piano Cover
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192004
  explicit: false
  by artist: Tokyo piano sound factory
  in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
    type: MusicAlbum
    date published: 2023-01-21
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSBitcoinBlock
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353002
  additional property: OTSTimestamp
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  subject of: OpenTimestamps Proof of Existence
  audio: 愛の挨拶 - Jazz Piano Cover
track: パッヘルベルのカノン - Jazz Piano Cover
track: ジュピター〜組曲「惑星」より〜 - Jazz Piano Cover
track: きらきら星変奏曲 - Jazz Piano Cover
track: トッカータとフーガ ニ短調 - Jazz Piano Cover
track: シシリエンヌ - Jazz Piano Cover
track: エリーゼのために - Jazz Piano Cover
track: 五重奏曲 ます 第４楽章 - Jazz Piano Cover
track: ヴォカリーズ - Jazz Piano Cover
track: 愛の夢 - Jazz Piano Cover
track: 美しく青きドナウ - Jazz Piano Cover

OTSTimestamp
type: PropertyValue
value: 2026-07-05T12:31:54Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c79305c9a070697e7bfa1f7d71447f535fed72a25c6604e1575abc365e3e31. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353002.
date published: 2026-07-05T12:31:54Z

愛の挨拶 - Jazz Piano Cover
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 104.998
additional property: Musical Key
  type: PropertyValue
  value: 5
additional property: Mode (Major/Minor)
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  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.788
additional property: Energy
  type: PropertyValue
  value: 0.189
additional property: Speechiness
  type: PropertyValue
  value: 0.063
additional property: Acousticness
  type: PropertyValue
  value: 0.99
additional property: Instrumentalness
  type: PropertyValue
  value: 0.881
additional property: Liveness
  type: PropertyValue
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additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.394
additional property: Loudness (dB)
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  value: -17.356
additional property: Key Name
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additional property: Mode Name
  type: PropertyValue
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パッヘルベルのカノン - Jazz Piano Cover
type: MusicRecording
duration: PT2M10S
duration ms: 130401
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
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  date published: 2023-01-21
isrc code: TCJPU2353006
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958204957cda566f147d0a049e006d5d4a233e2ea12b167075e929340905c6a0. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:36:27Z), 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/TCJPU2353006.
  date published: 2026-07-20T11:36:27Z
audio: パッヘルベルのカノン - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
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  additional property: Mode Name
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ジュピター〜組曲「惑星」より〜 - Jazz Piano Cover
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duration: PT1M14S
duration ms: 74720
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353132
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/958918
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353132
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T20:00:47Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c5d7a605e332de4529085bddb12ca824a16443ee51deb6c3c758606e8527ad. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:00:47Z), 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/TCJPU2353132.
  date published: 2026-07-20T20:00:47Z
audio: ジュピター〜組曲「惑星」より〜 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 72.005
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.769
  additional property: Energy
    type: PropertyValue
    value: 0.248
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.916
  additional property: Liveness
    type: PropertyValue
    value: 0.165
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.773
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.851
  additional property: Key Name
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  additional property: Mode Name
    type: PropertyValue
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きらきら星変奏曲 - Jazz Piano Cover
type: MusicRecording
duration: PT2M18S
duration ms: 138714
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353137
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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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/956790
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T12:31:54Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559d865633dd502765c8a88f6c5d9327ae49cf6155dbd4a68c1f142003178378. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353137.
  date published: 2026-07-05T12:31:54Z
audio: きらきら星変奏曲 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.944
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.711
  additional property: Energy
    type: PropertyValue
    value: 0.101
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.991
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.863
  additional property: Liveness
    type: PropertyValue
    value: 0.079
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.23
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.106
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major

トッカータとフーガ ニ短調 - Jazz Piano Cover
type: MusicRecording
duration: PT1M30S
duration ms: 90533
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353145
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T11:09:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xda8739a70fbf3bc6a3c79bc8998356896c34d4f5df11244a6e8f26ba07b42efe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956822
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956822
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353145
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T18:48:28Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8739a70fbf3bc6a3c79bc8998356896c34d4f5df11244a6e8f26ba07b42efe. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353145.
  date published: 2026-07-05T18:48:28Z
audio: トッカータとフーガ ニ短調 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.04
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.469
  additional property: Energy
    type: PropertyValue
    value: 0.35
  additional property: Speechiness
    type: PropertyValue
    value: 0.037
  additional property: Acousticness
    type: PropertyValue
    value: 0.971
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.894
  additional property: Liveness
    type: PropertyValue
    value: 0.166
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.149
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.737
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

シシリエンヌ - Jazz Piano Cover
type: MusicRecording
duration: PT4M24S
duration ms: 264636
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353155
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T07:13:07+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6966aacf1191ce83640216fc73f3af4b8bbb79dfdd67457ec34d515cc437cdfa
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/TCJPU2353155
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6966aacf1191ce83640216fc73f3af4b8bbb79dfdd67457ec34d515cc437cdfa. 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/TCJPU2353155.
  date published: 2026-07-20T07:48:27Z
audio: シシリエンヌ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 81.345
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.43
  additional property: Energy
    type: PropertyValue
    value: 0.18
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.989
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.884
  additional property: Liveness
    type: PropertyValue
    value: 0.119
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.184
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.717
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Minor

エリーゼのために - Jazz Piano Cover
type: MusicRecording
duration: PT5M11S
duration ms: 311749
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353163
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T08:30:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f630b564cb678d6f4c6c8621cb7be49d2a99de16df37448972a851b9059270e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958853
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958853
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353163
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T11:32:45Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f630b564cb678d6f4c6c8621cb7be49d2a99de16df37448972a851b9059270e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:32:45Z), 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/TCJPU2353163.
  date published: 2026-07-20T11:32:45Z
audio: エリーゼのために - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.038
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.621
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.984
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.163
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.197
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.215
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

五重奏曲 ます 第４楽章 - Jazz Piano Cover
type: MusicRecording
duration: PT2M17S
duration ms: 137065
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353323
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T02:15:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf764396ccc66024ecf0144e75fb6fc2099e3544df8812137d5da4b7ec7f9093
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353323
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:16:32Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf764396ccc66024ecf0144e75fb6fc2099e3544df8812137d5da4b7ec7f9093. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPU2353323.
  date published: 2026-07-06T07:16:32Z
audio: 五重奏曲 ます 第４楽章 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.032
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.793
  additional property: Energy
    type: PropertyValue
    value: 0.176
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.93
  additional property: Liveness
    type: PropertyValue
    value: 0.131
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.327
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.281
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

ヴォカリーズ - Jazz Piano Cover
type: MusicRecording
duration: PT3M15S
duration ms: 195510
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T18:55:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a54c87aeaefadc348c6ecaf81846a8ad2157ee714d12e2ac2994f8a7288911e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958931
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958931
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T21:15:01Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a54c87aeaefadc348c6ecaf81846a8ad2157ee714d12e2ac2994f8a7288911e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCJPU2353410.
  date published: 2026-07-20T21:15:01Z
audio: ヴォカリーズ - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.072
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.467
  additional property: Energy
    type: PropertyValue
    value: 0.209
  additional property: Speechiness
    type: PropertyValue
    value: 0.053
  additional property: Acousticness
    type: PropertyValue
    value: 0.988
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.892
  additional property: Liveness
    type: PropertyValue
    value: 0.088
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.178
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.4
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

愛の夢 - Jazz Piano Cover
type: MusicRecording
duration: PT2M18S
duration ms: 138505
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353417
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T06:10:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a97304c933b7c99c9a4f50ae828ff5e7c7bc7dc242763f79b24927541d401ed
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956894
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956894
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353417
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-06T07:53:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a97304c933b7c99c9a4f50ae828ff5e7c7bc7dc242763f79b24927541d401ed. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2353417.
  date published: 2026-07-06T07:53:57Z
audio: 愛の夢 - Jazz Piano Cover
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.012
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.893
  additional property: Energy
    type: PropertyValue
    value: 0.255
  additional property: Speechiness
    type: PropertyValue
    value: 0.088
  additional property: Acousticness
    type: PropertyValue
    value: 0.993
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.952
  additional property: Liveness
    type: PropertyValue
    value: 0.173
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.183
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.771
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

美しく青きドナウ - Jazz Piano Cover
type: MusicRecording
duration: PT2M15S
duration ms: 135022
explicit: false
by artist: Tokyo piano sound factory
in album: ジャズピアノアレンジで聴く クラシックの名曲 Classic by JAZZ PIANO ARRANGE vol.2
  type: MusicAlbum
  date published: 2023-01-21
isrc code: TCJPU2353436
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-20T11:22:49+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a865948eadace87f21c6b022838090155056f1d8dacda52248af8bac53197f3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958876
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958876
additional property: OTSVerificationAPI
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type: MusicAlbum
date published: 2023-01-21

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type: MusicAlbum
date published: 2023-01-21

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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
date published: 2023-02-03

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type: MusicAlbum
date published: 2023-02-03

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date published: 2023-02-03

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date published: 2023-02-03

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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
date published: 2023-02-18

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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
date published: 2024-03-08

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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
date published: 2024-03-19

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type: MusicAlbum
date published: 2024-03-19

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type: MusicAlbum
date published: 2024-03-19

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type: MusicAlbum
date published: 2024-03-19

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type: MusicAlbum
date published: 2024-03-19

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type: MusicAlbum
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type: MusicAlbum
date published: 2024-06-27

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type: MusicAlbum
date published: 2024-06-27

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type: MusicAlbum
date published: 2024-06-27

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type: MusicAlbum
date published: 2024-06-29

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type: MusicAlbum
date published: 2024-06-29

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type: MusicAlbum
date published: 2024-07-04

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type: MusicAlbum
date published: 2024-07-04

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type: MusicAlbum
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type: MusicAlbum
date published: 2024-07-04

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type: MusicAlbum
date published: 2024-07-18

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type: MusicAlbum
date published: 2024-07-18

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type: MusicAlbum
date published: 2024-10-01

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type: MusicAlbum
date published: 2024-10-01

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type: MusicAlbum
date published: 2024-11-01

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type: MusicAlbum
date published: 2024-11-01

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-13

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2024-11-30

DEAR...again (Piano Cover)
type: MusicAlbum
date published: 2024-11-30

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type: MusicAlbum
date published: 2025-02-22

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type: MusicAlbum
date published: 2025-02-22

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type: MusicAlbum
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type: MusicAlbum
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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
date published: 2025-02-28

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type: MusicAlbum
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type: MusicAlbum
date published: 2025-07-19

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type: MusicAlbum
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