Kosuke Yamashita
type: MusicGroup
description: is a Japanese composer and arranger from Hamamatsu, Shizuoka. Yamashita is best known for his work on Digimon Xros Wars, Xenosaga: The Animation, and the tokusatsu television series Mahou Sentai Magi
popularity: 20
followers: 950
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb066a7eda52986f4bf3024be88ebd38eff86b0c376a6440b2abc6f78296713e9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953612
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953612
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/177e7fae-917f-48da-82e2-ba08149d94a9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/177e7fae-917f-48da-82e2-ba08149d94a9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/177e7fae-917f-48da-82e2-ba08149d94a9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:22:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb066a7eda52986f4bf3024be88ebd38eff86b0c376a6440b2abc6f78296713e9","name":"Kosuke Yamashita","registered_at":"2026-06-14T06:51:36Z","symbol":"NIM0372663","token_address":"0xd57659c9a7ab8659b558b08b35ff43494fd94b57","type":"artist","uuid":"177e7fae-917f-48da-82e2-ba08149d94a9"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb066a7eda52986f4bf3024be88ebd38eff86b0c376a6440b2abc6f78296713e9. Chain 2 (Bitcoin): anchored in block 953612 (2026-06-14T08:22:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/177e7fae-917f-48da-82e2-ba08149d94a9.json and https://artists.proofprofile.net/proofs/artist/177e7fae-917f-48da-82e2-ba08149d94a9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T08:22:11Z
  text: {"copyright_id":"0xb066a7eda52986f4bf3024be88ebd38eff86b0c376a6440b2abc6f78296713e9","name":"Kosuke Yamashita","registered_at":"2026-06-14T06:51:36Z","symbol":"NIM0372663","token_address":"0xd57659c9a7ab8659b558b08b35ff43494fd94b57","type":"artist","uuid":"177e7fae-917f-48da-82e2-ba08149d94a9"}
album: Yuukan Club Original Soundtrack
  type: MusicAlbum
  date published: 2007-11-28
album: 日本テレビ系火曜ドラマ「有閑倶楽部」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2007-11-28
album: 信長の野望 (至上音盤)
  type: MusicAlbum
  date published: 2009-11-18
album: TBS系 金曜ドラマ「ヤマトナデシコ七変化♥」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2010-03-03
album: 「ランナウェイ～愛する君のために」オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2011-12-07
album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
  track: YOUTHFUL - TV Size
    type: MusicRecording
    duration: PT1M13S
    duration ms: 73626
    explicit: false
    by artist: Kosuke Yamashita
    in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
      type: MusicAlbum
      date published: 2012-01-18
    isrc code: JPVP01108401
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T01:04:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf1614ba3dc7989e1f42836e4ca9885d56684fd8395ef35eec75638a21018bb82
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959087
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959087
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108401
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:05:55Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1614ba3dc7989e1f42836e4ca9885d56684fd8395ef35eec75638a21018bb82. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108401 — a six-check JSON result.
      date published: 2026-07-22T02:05:55Z
    audio: YOUTHFUL - TV Size
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.968
      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: 0.547
      additional property: Energy
        type: PropertyValue
        value: 0.901
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.284
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.968
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.267
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Manazashi
    type: MusicRecording
    duration: PT2M4S
    duration ms: 124813
    explicit: false
    by artist: Kosuke Yamashita
    in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
      type: MusicAlbum
      date published: 2012-01-18
    isrc code: JPVP01108404
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:12:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf09362ee291e82d43639aa8c5d2c54a99518093374771b7d014f4adf36ee18da
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958529
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958529
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108404
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:21:41Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09362ee291e82d43639aa8c5d2c54a99518093374771b7d014f4adf36ee18da. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108404 — a six-check JSON result.
      date published: 2026-07-18T09:21:41Z
    audio: Manazashi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 66.829
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.212
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Himeta Omoi
  track: “CHIHAYAFURU”Main Theme
  track: Shori eno Michi
  track: “CHIHAYAFURU”Main Theme - p.f.ver.
album: ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第1首
album: TBS系 金曜ドラマ「恋愛ニート～忘れた恋のはじめ方～」オリジナル･サウンドトラック
album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.2
album: ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第2首
album: ちはやふる2 オリジナル・サウンドトラック
album: CHIHAYAFURU 2 Original Soundtrack
album: それでも世界は美しい オリジナル・サウンドトラック
album: The World is Still Beautiful Original Soundtrack
album: 海辺の映画館 - キネマの玉手箱
album: 暴太郎戦隊ドンブラザーズ Music Collection vol.1
album: 暴太郎戦隊ドンブラザーズ Music Collection vol.2
album: 忌怪島／きかいじま (Original Soundtrack)

Energy
type: PropertyValue
value: 0.15

Speechiness
type: PropertyValue
value: 0.04

Acousticness
type: PropertyValue
value: 0.985

Instrumentalness
type: PropertyValue
value: 0.757

Liveness
type: PropertyValue
value: 0.128

Valence (Positivity)
type: PropertyValue
value: 0.04

Loudness (dB)
type: PropertyValue
value: -16.007

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Himeta Omoi
type: MusicRecording
duration: PT2M21S
duration ms: 141013
explicit: false
by artist: Kosuke Yamashita
in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
isrc code: JPVP01108406
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T02:56:20+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4199b77b67e6ea6eb5b229b389a35ba2e88c247abc9d4fa201ef7ccb0776310d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958650
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108406
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T03:36:41Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4199b77b67e6ea6eb5b229b389a35ba2e88c247abc9d4fa201ef7ccb0776310d. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108406 — a six-check JSON result.
  date published: 2026-07-19T03:36:41Z
audio: Himeta Omoi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 65.144
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.21
  additional property: Energy
    type: PropertyValue
    value: 0.194
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.962
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.506
  additional property: Liveness
    type: PropertyValue
    value: 0.106
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.434
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

“CHIHAYAFURU”Main Theme
type: MusicRecording
duration: PT2M58S
duration ms: 178866
explicit: false
by artist: Kosuke Yamashita
in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
isrc code: JPVP01108407
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-13T17:36:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x57b0f25e1df632f819a22f028f48a17db9b3e1f1892ab585827438e7f0da26c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957891
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957891
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108407
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-13T18:21:04Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b0f25e1df632f819a22f028f48a17db9b3e1f1892ab585827438e7f0da26c9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108407 — a six-check JSON result.
  date published: 2026-07-13T18:21:04Z
audio: “CHIHAYAFURU”Main Theme
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 69.167
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.231
  additional property: Energy
    type: PropertyValue
    value: 0.269
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.973
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.493
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.086
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.798
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Shori eno Michi
type: MusicRecording
duration: PT2M31S
duration ms: 151866
explicit: false
by artist: Kosuke Yamashita
in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
isrc code: JPVP01108411
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-22T02:21:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3c62c253d4bb75e635bbc302f2e0a92187da519baa40364756c79289ad3fcec8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 959091
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/959091
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108411
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-22T02:33:54Z
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c62c253d4bb75e635bbc302f2e0a92187da519baa40364756c79289ad3fcec8. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108411 — a six-check JSON result.
  date published: 2026-07-22T02:33:54Z
audio: Shori eno Michi
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 123.646
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.312
  additional property: Energy
    type: PropertyValue
    value: 0.243
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.951
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.856
  additional property: Liveness
    type: PropertyValue
    value: 0.213
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.87
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

“CHIHAYAFURU”Main Theme - p.f.ver.
type: MusicRecording
duration: PT2M18S
duration ms: 138906
explicit: false
by artist: Kosuke Yamashita
in album: CHIHAYAFURU Original Soundtrack & Character Songs Vol.1
  type: MusicAlbum
  date published: 2012-01-18
isrc code: JPVP01108421
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T07:58:31+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x03a6e919f7e77fd4e0ee7974f63f85330a782afbc575ac76f202588fd0912b14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108421
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T08:19:09Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a6e919f7e77fd4e0ee7974f63f85330a782afbc575ac76f202588fd0912b14. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108421 — a six-check JSON result.
  date published: 2026-07-18T08:19:09Z
audio: “CHIHAYAFURU”Main Theme - p.f.ver.
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.485
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.417
  additional property: Energy
    type: PropertyValue
    value: 0.022
  additional property: Speechiness
    type: PropertyValue
    value: 0.065
  additional property: Acousticness
    type: PropertyValue
    value: 0.994
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.919
  additional property: Liveness
    type: PropertyValue
    value: 0.111
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.179
  additional property: Loudness (dB)
    type: PropertyValue
    value: -22.096
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第1首
type: MusicAlbum
date published: 2012-01-18

ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第1首
type: MusicAlbum
date published: 2012-01-18
track: 「ちはやふる」メインテーマ
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178866
  explicit: false
  by artist: Kosuke Yamashita
  in album: ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第1首
    type: MusicAlbum
    date published: 2012-01-18
  isrc code: JPVP01108407
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x57b0f25e1df632f819a22f028f48a17db9b3e1f1892ab585827438e7f0da26c9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958373
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958373
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108407
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T06:09:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b0f25e1df632f819a22f028f48a17db9b3e1f1892ab585827438e7f0da26c9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108407 — a six-check JSON result.
    date published: 2026-07-17T06:09:33Z
  audio: 「ちはやふる」メインテーマ
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 69.167
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.231
    additional property: Energy
      type: PropertyValue
      value: 0.269
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.973
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.493
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.086
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.798
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: 「ちはやふる」メインテーマ - p.f.ver.
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138906
  explicit: false
  by artist: Kosuke Yamashita
  in album: ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第1首
    type: MusicAlbum
    date published: 2012-01-18
  isrc code: JPVP01108421
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x03a6e919f7e77fd4e0ee7974f63f85330a782afbc575ac76f202588fd0912b14
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958585
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958585
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108421
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T17:05:16Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a6e919f7e77fd4e0ee7974f63f85330a782afbc575ac76f202588fd0912b14. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01108421 — a six-check JSON result.
    date published: 2026-07-18T17:05:16Z
  audio: 「ちはやふる」メインテーマ - p.f.ver.
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.485
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.417
    additional property: Energy
      type: PropertyValue
      value: 0.022
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.994
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.919
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.179
    additional property: Loudness (dB)
      type: PropertyValue
      value: -22.096
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

TBS系 金曜ドラマ「恋愛ニート～忘れた恋のはじめ方～」オリジナル･サウンドトラック
type: MusicAlbum
date published: 2012-03-07

CHIHAYAFURU Original Soundtrack & Character Songs Vol.2
type: MusicAlbum
date published: 2012-03-28

ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第2首
type: MusicAlbum
date published: 2012-03-28

ちはやふる オリジナル・サウンドトラック＆キャラクターソング集 第2首
type: MusicAlbum
date published: 2012-03-28

CHIHAYAFURU Original Soundtrack & Character Songs Vol.2
type: MusicAlbum
date published: 2012-03-28

ちはやふる2 オリジナル・サウンドトラック
type: MusicAlbum
date published: 2013-03-20

ちはやふる2 オリジナル・サウンドトラック
type: MusicAlbum
date published: 2013-03-20
track: 茜空
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259079
  explicit: false
  by artist: Kosuke Yamashita
  in album: ちはやふる2 オリジナル・サウンドトラック
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPVP01311017
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-13T00:00:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a9df2b8f233f733f754d595dfde7d52e5fa8f9aff4ee67c500079cb77a0cb5f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957779
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957779
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01311017
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-13T00:19:08Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9df2b8f233f733f754d595dfde7d52e5fa8f9aff4ee67c500079cb77a0cb5f. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01311017 — a six-check JSON result.
    date published: 2026-07-13T00:19:08Z
  audio: 茜空
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.923
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.593
    additional property: Energy
      type: PropertyValue
      value: 0.441
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.209
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.419
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.958
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

CHIHAYAFURU 2 Original Soundtrack
type: MusicAlbum
date published: 2013-03-20

CHIHAYAFURU 2 Original Soundtrack
type: MusicAlbum
date published: 2013-03-20
track: Akane Zora
  type: MusicRecording
  duration: PT4M19S
  duration ms: 259079
  explicit: false
  by artist: Kosuke Yamashita
  in album: CHIHAYAFURU 2 Original Soundtrack
    type: MusicAlbum
    date published: 2013-03-20
  isrc code: JPVP01311017
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a9df2b8f233f733f754d595dfde7d52e5fa8f9aff4ee67c500079cb77a0cb5f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958224
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958224
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01311017
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T02:28:43Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9df2b8f233f733f754d595dfde7d52e5fa8f9aff4ee67c500079cb77a0cb5f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01311017 — a six-check JSON result.
    date published: 2026-07-16T02:28:43Z
  audio: Akane Zora
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.923
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.593
    additional property: Energy
      type: PropertyValue
      value: 0.441
    additional property: Speechiness
      type: PropertyValue
      value: 0.025
    additional property: Acousticness
      type: PropertyValue
      value: 0.209
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.419
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.958
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

それでも世界は美しい オリジナル・サウンドトラック
type: MusicAlbum
date published: 2014-05-21
track: BEAUTIFUL WORLD
  type: MusicRecording
  duration: PT4M5S
  duration ms: 245626
  explicit: false
  by artist: Kosuke Yamashita
  in album: それでも世界は美しい オリジナル・サウンドトラック
    type: MusicAlbum
    date published: 2014-05-21
  isrc code: JPVP01403702
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T05:26:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0b3170ef3b9c58336468449a716b0e96ad8b1b9721c365b69c7b0826e9efd8bf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958371
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958371
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403702
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T05:45:43Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3170ef3b9c58336468449a716b0e96ad8b1b9721c365b69c7b0826e9efd8bf. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403702 — a six-check JSON result.
    date published: 2026-07-17T05:45:43Z
  audio: BEAUTIFUL WORLD
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 179.925
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.437
    additional property: Energy
      type: PropertyValue
      value: 0.932
    additional property: Speechiness
      type: PropertyValue
      value: 0.071
    additional property: Acousticness
      type: PropertyValue
      value: 0.03
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.334
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.834
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.307
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: PROMISE
  type: MusicRecording
  duration: PT5M42S
  duration ms: 342426
  explicit: false
  by artist: Kosuke Yamashita
  in album: それでも世界は美しい オリジナル・サウンドトラック
    type: MusicAlbum
    date published: 2014-05-21
  isrc code: JPVP01403731
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T17:03:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x096514aaf87fcb1a9d65be127a75c7cad2d1b9a76543bd15d39149a0e306d441
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958590
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958590
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403731
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T17:28:56Z
  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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096514aaf87fcb1a9d65be127a75c7cad2d1b9a76543bd15d39149a0e306d441. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403731 — a six-check JSON result.
    date published: 2026-07-18T17:28:56Z
  audio: PROMISE
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.985
    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: 0.495
    additional property: Energy
      type: PropertyValue
      value: 0.608
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.016
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.076
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.341
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.824
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: アメフラシの歌～Beautiful Rain～ - orchestra ver.
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166346
  explicit: false
  by artist: Kosuke Yamashita
  in album: それでも世界は美しい オリジナル・サウンドトラック
    type: MusicAlbum
    date published: 2014-05-21
  isrc code: JPVP01403732
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T08:37:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7a122a45e45993bafba7a926eff4cb9939bd04f795c8b2f2b8ebd22103e60c4c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958987
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958987
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403732
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: アメフラシの歌～Beautiful Rain～ - orchestra ver.

OTSTimestamp
type: PropertyValue
value: 2026-07-21T09:04:56Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a122a45e45993bafba7a926eff4cb9939bd04f795c8b2f2b8ebd22103e60c4c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403732 — a six-check JSON result.
date published: 2026-07-21T09:04:56Z

アメフラシの歌～Beautiful Rain～ - orchestra ver.
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 75.562
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.252
additional property: Energy
  type: PropertyValue
  value: 0.188
additional property: Speechiness
  type: PropertyValue
  value: 0.032
additional property: Acousticness
  type: PropertyValue
  value: 0.95
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.11
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.172
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.749
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

The World is Still Beautiful Original Soundtrack
type: MusicAlbum
date published: 2014-05-21

それでも世界は美しい オリジナル・サウンドトラック
type: MusicAlbum
date published: 2014-05-21

The World is Still Beautiful Original Soundtrack
type: MusicAlbum
date published: 2014-05-21
track: Soredemo Sekai wa Utsukushii
  type: MusicRecording
  duration: PT2M54S
  duration ms: 174826
  explicit: false
  by artist: Kosuke Yamashita
  in album: The World is Still Beautiful Original Soundtrack
    type: MusicAlbum
    date published: 2014-05-21
  isrc code: JPVP01403701
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T06:03:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a3cbb5ac70cd27c9c3ac075cffa9eb6cea0f7383448f3cdafc883f0674bc00a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958977
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958977
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403701
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T06:27:23Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3cbb5ac70cd27c9c3ac075cffa9eb6cea0f7383448f3cdafc883f0674bc00a. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403701 — a six-check JSON result.
    date published: 2026-07-21T06:27:23Z
  audio: Soredemo Sekai wa Utsukushii
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 93.521
    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: 0.337
    additional property: Energy
      type: PropertyValue
      value: 0.504
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.741
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.289
    additional property: Liveness
      type: PropertyValue
      value: 0.081
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.135
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.914
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Nukumori to Yasashisa to
  type: MusicRecording
  duration: PT2M42S
  duration ms: 162853
  explicit: false
  by artist: Kosuke Yamashita
  in album: The World is Still Beautiful Original Soundtrack
    type: MusicAlbum
    date published: 2014-05-21
  isrc code: JPVP01403705
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T13:04:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xffd35b136869e1bca09470bee1d77cc88d76548587d96d23756f2aaf09dce0e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958738
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958738
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403705
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T13:10:36Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd35b136869e1bca09470bee1d77cc88d76548587d96d23756f2aaf09dce0e2. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVP01403705 — a six-check JSON result.
    date published: 2026-07-19T13:10:36Z
  audio: Nukumori to Yasashisa to
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 65.515
    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: 0.343
    additional property: Energy
      type: PropertyValue
      value: 0.08
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.939
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.592
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.074
    additional property: Loudness (dB)
      type: PropertyValue
      value: -15.421
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

海辺の映画館 - キネマの玉手箱
type: MusicAlbum
date published: 2020-07-17

暴太郎戦隊ドンブラザーズ Music Collection vol.1
type: MusicAlbum
date published: 2022-04-20
track: この世は楽園、悩みなんざぶっ飛ばせ！
  type: MusicRecording
  duration: PT1M11S
  duration ms: 71680
  explicit: false
  by artist: Kosuke Yamashita
  in album: 暴太郎戦隊ドンブラザーズ Music Collection vol.1
    type: MusicAlbum
    date published: 2022-04-20
  isrc code: JPCO02205610
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T20:52:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6bdd029e69abee4c2171941a878d7f0df3f7cef289c50a0525c923de6a29eb18
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02205610
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bdd029e69abee4c2171941a878d7f0df3f7cef289c50a0525c923de6a29eb18. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPCO02205610 — a six-check JSON result.
    date published: 2026-07-06T01:25:57Z
  audio: この世は楽園、悩みなんざぶっ飛ばせ！
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.023
    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: 0.669
    additional property: Energy
      type: PropertyValue
      value: 0.87
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.063
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.424
    additional property: Liveness
      type: PropertyValue
      value: 0.102
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.859
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.987
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

暴太郎戦隊ドンブラザーズ Music Collection vol.2
type: MusicAlbum
date published: 2022-08-24

忌怪島／きかいじま (Original Soundtrack)
type: MusicAlbum
date published: 2023-06-07