Hideki Kaji
type: MusicGroup
genre: city pop
genre: japanese indie
genre: shibuya-kei
popularity: 25
followers: 18840
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe42ee5eb1eed8ab6274c14b6c0cb5314c3dee0adedd5c38c72d0d67dfb7abda
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8abbddeb-e870-40f2-b08e-7da54390936b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8abbddeb-e870-40f2-b08e-7da54390936b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8abbddeb-e870-40f2-b08e-7da54390936b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe42ee5eb1eed8ab6274c14b6c0cb5314c3dee0adedd5c38c72d0d67dfb7abda","name":"Hideki Kaji","registered_at":"2026-06-12T03:52:45Z","symbol":"NIM0178681","token_address":"0x2e274289f5832f755636e6b19f340a3793d3c9fe","type":"artist","uuid":"8abbddeb-e870-40f2-b08e-7da54390936b"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe42ee5eb1eed8ab6274c14b6c0cb5314c3dee0adedd5c38c72d0d67dfb7abda. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8abbddeb-e870-40f2-b08e-7da54390936b.json and https://artists.proofprofile.net/proofs/artist/8abbddeb-e870-40f2-b08e-7da54390936b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xfe42ee5eb1eed8ab6274c14b6c0cb5314c3dee0adedd5c38c72d0d67dfb7abda","name":"Hideki Kaji","registered_at":"2026-06-12T03:52:45Z","symbol":"NIM0178681","token_address":"0x2e274289f5832f755636e6b19f340a3793d3c9fe","type":"artist","uuid":"8abbddeb-e870-40f2-b08e-7da54390936b"}
album: MINI SKIRT
  type: MusicAlbum
  date published: 1997
album: ラ･ブーム ～だって MY BOOM IS ME～
  type: MusicAlbum
  date published: 1997-01-06
album: ラ･ブーム ～だって MY BOOM IS ME～
  type: MusicAlbum
  date published: 1997-01-06
album: MINI SKIRT
  type: MusicAlbum
  date published: 1997-01-29
  track: MUSCAT / マスカット
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213200
    explicit: false
    by artist: Hideki Kaji
    in album: MINI SKIRT
      type: MusicAlbum
      date published: 1997-01-29
    genre: city pop
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPPSO9604430
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T18:18:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2449687480ac119690a4568c42ec5ad3972748182c78761015b3ef90441803a4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9604430
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2449687480ac119690a4568c42ec5ad3972748182c78761015b3ef90441803a4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9604430.
      date published: 2026-07-05T01:43:49Z
    audio: MUSCAT / マスカット
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.965
      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: 0.512
      additional property: Energy
        type: PropertyValue
        value: 0.933
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.104
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.114
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.959
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.981
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: POP! CUTE! SWEET! / ポップ・ソングをつくろう
    type: MusicRecording
    duration: PT1M5S
    duration ms: 65040
    explicit: false
    by artist: Hideki Kaji
    in album: MINI SKIRT
      type: MusicAlbum
      date published: 1997-01-29
    genre: city pop
    genre: japanese indie
    genre: shibuya-kei
    isrc code: JPPSO9700300
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T12:23:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd4ebff19f0062cea09190b24b3bfaf69669604abd85688bbf2addf253f5ba507
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958286
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958286
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9700300
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T12:43:37Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ebff19f0062cea09190b24b3bfaf69669604abd85688bbf2addf253f5ba507. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9700300.
      date published: 2026-07-16T12:43:37Z
    audio: POP! CUTE! SWEET! / ポップ・ソングをつくろう
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.117
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.394
      additional property: Energy
        type: PropertyValue
        value: 0.799
      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: SIESTA / 君のハートのナチュラル
album: 夏物語 HERE IS OUR STREET!! (シングル･ヴァージョン)
album: 恋人が待っている/ヘイ･ヘイ･ベイビー･ポップ
album: GREEN ROAD グリーン･ロード
album: tea
album: AUGUST E.P.
album: SUDDENLY. SIBYLLA シヴィラはある日突然に
album: カローラⅡに恋をした
album: Queen Sound Babbles Again / Johnny Johnny
album: 15 ANGRY MEN / 15人の怒れる男たち
album: the fireworks candy & puppydog store
album: ミスター・スウェーデン
album: YOU WILL LOVE ME
album: IVY IVORY IVY
album: This is still OK
album: From Cafe Scandinavia With Love for cafe apress-midi
album: My Love,My Milk / 僕の恋、僕のミルク
album: SEPARATE WAYS
album: A LONG WEEK-END
album: FOOTBALLING WEEKENDERS
album: Good Morning Call Song
album: lov songs
album: NEW PRETTY
album: MINI SKIRT -DELUXE EDITION-
album: Towns and Streets
album: ロリポップ
album: Lollipop
album: BLUE BOYS DON'T CRY e.p.
album: Blue Boys Don't Cry -EP
album: STRAWBERRIES AND CREAM
album: Strawberries and Cream
album: Teens Film
album: London My Town
album: BLUE HEART
album: Blue Heart
album: Sweet Swedish Winter
album: ICE CREAM MAN
album: Ice Cream Man
album: THE BLUE BOY
album: The Blue Boy
album: ピーキャン音頭
album: 秋のオリーブ
album: 水飛沫とファンファーレ
album: ノンノン・ソング
album: GOTH ROMANCE
album: THE PERFECT DAY E.P.
album: DREAMS NEVER END
album: NAKED COFFEE AFFOGATO
album: クレールの膝
album: 冬の野原を疾走する子供たち
album: APRIL FOOL
album: SUMMER SUNDAY SMILE
album: きみのいない部屋
album: WINTER SONGS FOR YOU!
track: 男と女 - All Scat Version
track: ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
track: Love So Fine
track: Swing, Swing, Swing!〔Word Boy Word Girl Mix〕

男と女 - All Scat Version
type: MusicRecording
duration: PT3M11S
duration ms: 191613
explicit: false
by artist: Maki Nomiya
by artist: Hideki Kaji
by artist: Clémentine
by artist: 久保ミツロウ
by artist: 能町みね子
by artist: HYADAIN
in album: 男と女 ～野宮真貴、フレンチ渋谷系を歌う。
  type: MusicAlbum
  date published: 2016-08-31
popularity: 1
genre: city-pop
genre: kayokyoku
genre: shibuya-kei
genre: japanese-indie
isrc code: JPZ921609346
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T13:27:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf02d58f8778d96212608b99704c9f6098fb6fccf0b26ac53fff9dd569b447d19
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921609346
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02d58f8778d96212608b99704c9f6098fb6fccf0b26ac53fff9dd569b447d19. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPZ921609346.
  date published: 2026-07-08T03:20:19Z
audio: 男と女 - All Scat Version
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.121
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.716
  additional property: Energy
    type: PropertyValue
    value: 0.477
  additional property: Speechiness
    type: PropertyValue
    value: 0.03
  additional property: Acousticness
    type: PropertyValue
    value: 0.562
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.019
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.465
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.719
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
type: MusicRecording
duration: PT4M40S
duration ms: 280533
explicit: false
by artist: Maki Nomiya
by artist: Hideki Kaji
in album: 野宮真貴 渋谷系ソングブック
  type: MusicAlbum
  date published: 2018-10-31
genre: city-pop
genre: kayokyoku
genre: shibuya-kei
genre: japanese-indie
isrc code: JPZ921811951
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:18:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f975ef1ce46b1ca38a5b5caf2fb8b15a0490f2caaa6a544ad3e1ec5b58945a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921811951
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953515
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T12:53:06+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f975ef1ce46b1ca38a5b5caf2fb8b15a0490f2caaa6a544ad3e1ec5b58945a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921811951.
  date published: 2026-06-13T12:53:06Z
audio: ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 110.487
  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: 0.45
  additional property: Energy
    type: PropertyValue
    value: 0.907
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.639
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.005
  additional property: Liveness
    type: PropertyValue
    value: 0.096
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.941
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.579
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Love So Fine
type: MusicRecording
duration: PT2M51S
duration ms: 171826
explicit: false
by artist: Maki Nomiya
by artist: Hideki Kaji
in album: 野宮真貴 渋谷系ソングブック
  type: MusicAlbum
  date published: 2018-10-31
genre: city-pop
genre: kayokyoku
genre: shibuya-kei
genre: japanese-indie
isrc code: JPZ921811954
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T18:08:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53e71d7ac1f5ab4407f23e31bdb6cff734dce81f642ce467c1d23b38e8e7978c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921811954
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e71d7ac1f5ab4407f23e31bdb6cff734dce81f642ce467c1d23b38e8e7978c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/JPZ921811954.
  date published: 2026-07-02T11:38:34Z
audio: Love So Fine
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 112.217
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.573
  additional property: Energy
    type: PropertyValue
    value: 0.861
  additional property: Speechiness
    type: PropertyValue
    value: 0.026
  additional property: Acousticness
    type: PropertyValue
    value: 0.035
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.085
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.713
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.979
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Swing, Swing, Swing!〔Word Boy Word Girl Mix〕
type: MusicRecording
duration: PT5M1S
duration ms: 301890
explicit: false
by artist: Cymbals
by artist: Hideki Kaji
by artist: 高野 勲
by artist: Transonic Recordings（Akira Mizumoto & Kazunao Nagata）
in album: Well-done
  type: MusicAlbum
  date published: 2001-11-21
isrc code: JPVI00134210
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T03:15:50+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf8da0f7e1c1a8ef5bf6929825ba4079cd2b7d234402e45ba1065675856aef51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPVI00134210
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8da0f7e1c1a8ef5bf6929825ba4079cd2b7d234402e45ba1065675856aef51. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPVI00134210.
  date published: 2026-07-08T03:53:27Z
audio: Swing, Swing, Swing!〔Word Boy Word Girl Mix〕
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.673
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.716
  additional property: Energy
    type: PropertyValue
    value: 0.883
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.163
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.016
  additional property: Liveness
    type: PropertyValue
    value: 0.339
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.882
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.991
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
type: MusicRecording
duration: PT4M41S
duration ms: 281533
explicit: false
by artist: Maki Nomiya
by artist: Hideki Kaji
in album: 世界は愛を求めてる。 What The World Needs Now Is Love ～野宮真貴、渋谷系を歌う。～
  type: MusicAlbum
  date published: 2015-11-11
genre: city-pop
genre: kayokyoku
genre: shibuya-kei
genre: japanese-indie
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0893d43f1165e42080c22467a5283d2f9cd00580420cf6e2f673cad617adca5. Chain 2 (Bitcoin): anchored in block 960285 (2026-07-30T17:26:40Z), 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/JPZ921512602.
  date published: 2026-07-30T17:26:40Z
audio: ラテンでレッツ・ラブまたは1990サマー・ビューティー計画
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.18
  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: 0.592
  additional property: Energy
    type: PropertyValue
    value: 0.871
  additional property: Speechiness
    type: PropertyValue
    value: 0.033
  additional property: Acousticness
    type: PropertyValue
    value: 0.772
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.064
  additional property: Liveness
    type: PropertyValue
    value: 0.107
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.962
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.085
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: JPZ921512602
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960285
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T17:26:40+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921512602
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960285
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960285
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T17:26:40+00:00
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

Speechiness
type: PropertyValue
value: 0.051

Acousticness
type: PropertyValue
value: 0.124

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.088

Valence (Positivity)
type: PropertyValue
value: 0.676

Loudness (dB)
type: PropertyValue
value: -3.729

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

SIESTA / 君のハートのナチュラル
type: MusicRecording
duration: PT3M23S
duration ms: 203733
explicit: false
by artist: Hideki Kaji
in album: MINI SKIRT
  type: MusicAlbum
  date published: 1997-01-29
genre: city pop
genre: japanese indie
genre: shibuya-kei
isrc code: JPPSO9700019
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T12:45:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64456930dbdc9acc6eecd104f33d4774cd92f385b5924a3374f777a317ca747a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958734
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958734
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9700019
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T15:47:57Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64456930dbdc9acc6eecd104f33d4774cd92f385b5924a3374f777a317ca747a. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T15:47:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9700019.
  date published: 2026-07-19T15:47:57Z
audio: SIESTA / 君のハートのナチュラル
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 175.957
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.485
  additional property: Energy
    type: PropertyValue
    value: 0.919
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.242
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.011
  additional property: Liveness
    type: PropertyValue
    value: 0.261
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.867
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.945
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

MINI SKIRT
type: MusicAlbum
date published: 1997-01-29

夏物語 HERE IS OUR STREET!! (シングル･ヴァージョン)
type: MusicAlbum
date published: 1997-04-16

夏物語 HERE IS OUR STREET!! (シングル･ヴァージョン)
type: MusicAlbum
date published: 1997-04-16

恋人が待っている/ヘイ･ヘイ･ベイビー･ポップ
type: MusicAlbum
date published: 1997-06-18

恋人が待っている/ヘイ･ヘイ･ベイビー･ポップ
type: MusicAlbum
date published: 1997-06-18

GREEN ROAD グリーン･ロード
type: MusicAlbum
date published: 1997-11-19

GREEN ROAD グリーン･ロード
type: MusicAlbum
date published: 1997-11-19

tea
type: MusicAlbum
date published: 1998

AUGUST E.P.
type: MusicAlbum
date published: 1998

SUDDENLY. SIBYLLA シヴィラはある日突然に
type: MusicAlbum
date published: 1998-01-07

SUDDENLY. SIBYLLA シヴィラはある日突然に
type: MusicAlbum
date published: 1998-01-07

tea
type: MusicAlbum
date published: 1998-01-28

tea
type: MusicAlbum
date published: 1998-01-28
track: SUDDENLY, SIBYLLA / シヴィラはある日突然に
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227026
  explicit: false
  by artist: Hideki Kaji
  in album: tea
    type: MusicAlbum
    date published: 1998-01-28
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPPSO9800150
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T01:27:46+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbd4826499573fe78858ba61bf2b653a805045766109ded67e27067f8553289fd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956634
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956634
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9800150
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T10:04:33Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4826499573fe78858ba61bf2b653a805045766109ded67e27067f8553289fd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9800150.
    date published: 2026-07-04T10:04:33Z
  audio: SUDDENLY, SIBYLLA / シヴィラはある日突然に
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.026
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.508
    additional property: Energy
      type: PropertyValue
      value: 0.902
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.112
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.36
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.918
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.879
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: TEA / ティー
  type: MusicRecording
  duration: PT3M28S
  duration ms: 208040
  explicit: false
  by artist: Hideki Kaji
  in album: tea
    type: MusicAlbum
    date published: 1998-01-28
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPPSO9800180
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T11:55:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2721c8f1bd35dd30905634e791151185f9a3760155a6adf1d11b7944fb15190e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959010
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959010
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9800180
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T14:58:30Z
  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 0x2721c8f1bd35dd30905634e791151185f9a3760155a6adf1d11b7944fb15190e. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:58:30Z), 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/JPPSO9800180.
    date published: 2026-07-21T14:58:30Z
  audio: TEA / ティー
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 164.282
    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: 0.51
    additional property: Energy
      type: PropertyValue
      value: 0.761
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.102
    additional property: Liveness
      type: PropertyValue
      value: 0.274
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.85
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.801
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

カローラⅡに恋をした
type: MusicAlbum
date published: 1998-02-11

カローラⅡに恋をした
type: MusicAlbum
date published: 1998-02-11

AUGUST E.P.
type: MusicAlbum
date published: 1998-07-29

Queen Sound Babbles Again / Johnny Johnny
type: MusicAlbum
date published: 1999

15 ANGRY MEN / 15人の怒れる男たち
type: MusicAlbum
date published: 1999

the fireworks candy & puppydog store
type: MusicAlbum
date published: 1999

Queen Sound Babbles Again / Johnny Johnny
type: MusicAlbum
date published: 1999-02-01
track: Johnny Johnny / 死ぬほど恋して
  type: MusicRecording
  duration: PT4M17S
  duration ms: 257239
  explicit: false
  by artist: Hideki Kaji
  in album: Queen Sound Babbles Again / Johnny Johnny
    type: MusicAlbum
    date published: 1999-02-01
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPPSO9900430
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T00:05:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x186c1765d25a709222c4d8741e79182e8834ba902ed6733d7b8bc165743259f0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958945
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958945
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPSO9900430
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T00:35:28Z
  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 0x186c1765d25a709222c4d8741e79182e8834ba902ed6733d7b8bc165743259f0. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/JPPSO9900430.
    date published: 2026-07-21T00:35:28Z
  audio: Johnny Johnny / 死ぬほど恋して
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.019
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.734
    additional property: Energy
      type: PropertyValue
      value: 0.727
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.084
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.054
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.554
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.063
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Queen Sound Babbles Again / Johnny Johnny
type: MusicAlbum
date published: 1999-02-01

ミスター・スウェーデン
type: MusicAlbum
date published: 1999-06-02

15 ANGRY MEN / 15人の怒れる男たち
type: MusicAlbum
date published: 1999-07-01

15 ANGRY MEN / 15人の怒れる男たち
type: MusicAlbum
date published: 1999-07-01

the fireworks candy & puppydog store
type: MusicAlbum
date published: 1999-09-01

the fireworks candy & puppydog store
type: MusicAlbum
date published: 1999-09-01

YOU WILL LOVE ME
type: MusicAlbum
date published: 2000

IVY IVORY IVY
type: MusicAlbum
date published: 2000-07-12

IVY IVORY IVY
type: MusicAlbum
date published: 2000-07-12

YOU WILL LOVE ME
type: MusicAlbum
date published: 2000-08-09

This is still OK
type: MusicAlbum
date published: 2000-11-29

From Cafe Scandinavia With Love for cafe apress-midi
type: MusicAlbum
date published: 2001

My Love,My Milk / 僕の恋、僕のミルク
type: MusicAlbum
date published: 2001-03-21

From Cafe Scandinavia With Love for cafe apress-midi
type: MusicAlbum
date published: 2001-06-27

From Cafe Scandinavia With Love for cafe apress-midi
type: MusicAlbum
date published: 2001-06-27

SEPARATE WAYS
type: MusicAlbum
date published: 2001-07-25

A LONG WEEK-END
type: MusicAlbum
date published: 2002

FOOTBALLING WEEKENDERS
type: MusicAlbum
date published: 2002-03-06

FOOTBALLING WEEKENDERS
type: MusicAlbum
date published: 2002-03-06

A LONG WEEK-END
type: MusicAlbum
date published: 2002-05-29

A LONG WEEK-END
type: MusicAlbum
date published: 2002-05-29

Good Morning Call Song
type: MusicAlbum
date published: 2004

lov songs
type: MusicAlbum
date published: 2004

Good Morning Call Song
type: MusicAlbum
date published: 2004-03-24

lov songs
type: MusicAlbum
date published: 2004-07-14

lov songs
type: MusicAlbum
date published: 2004-07-14

NEW PRETTY
type: MusicAlbum
date published: 2006-06-07

NEW PRETTY
type: MusicAlbum
date published: 2006-06-07

MINI SKIRT -DELUXE EDITION-
type: MusicAlbum
date published: 2007

Towns and Streets
type: MusicAlbum
date published: 2007

MINI SKIRT -DELUXE EDITION-
type: MusicAlbum
date published: 2007-01-24

MINI SKIRT -DELUXE EDITION-
type: MusicAlbum
date published: 2007-01-24

Towns and Streets
type: MusicAlbum
date published: 2007-10-24

Towns and Streets
type: MusicAlbum
date published: 2007-10-24

Towns and Streets
type: MusicAlbum
date published: 2007-10-24

Towns and Streets
type: MusicAlbum
date published: 2007-11-28

ロリポップ
type: MusicAlbum
date published: 2008-10-22

ロリポップ
type: MusicAlbum
date published: 2008-10-22

Lollipop
type: MusicAlbum
date published: 2008-10-22

ロリポップ
type: MusicAlbum
date published: 2008-10-22

BLUE BOYS DON'T CRY e.p.
type: MusicAlbum
date published: 2009-05-20

Blue Boys Don't Cry -EP
type: MusicAlbum
date published: 2009-05-20

BLUE BOYS DON'T CRY e.p.
type: MusicAlbum
date published: 2009-05-20

STRAWBERRIES AND CREAM
type: MusicAlbum
date published: 2009-10-21

Strawberries and Cream
type: MusicAlbum
date published: 2009-10-21

STRAWBERRIES AND CREAM
type: MusicAlbum
date published: 2009-10-21

STRAWBERRIES AND CREAM
type: MusicAlbum
date published: 2009-10-21

Teens Film
type: MusicAlbum
date published: 2010-11-03

London My Town
type: MusicAlbum
date published: 2011-09-07

BLUE HEART
type: MusicAlbum
date published: 2012-05-16

BLUE HEART
type: MusicAlbum
date published: 2012-05-16

Blue Heart
type: MusicAlbum
date published: 2012-05-16

BLUE HEART
type: MusicAlbum
date published: 2012-05-16

Sweet Swedish Winter
type: MusicAlbum
date published: 2013-02-20

Sweet Swedish Winter
type: MusicAlbum
date published: 2013-02-20

Sweet Swedish Winter
type: MusicAlbum
date published: 2013-02-20

ICE CREAM MAN
type: MusicAlbum
date published: 2014-08-06

ICE CREAM MAN
type: MusicAlbum
date published: 2014-08-06

ICE CREAM MAN
type: MusicAlbum
date published: 2014-08-06

Ice Cream Man
type: MusicAlbum
date published: 2014-08-06

THE BLUE BOY
type: MusicAlbum
date published: 2016-05-25

THE BLUE BOY
type: MusicAlbum
date published: 2016-05-25

The Blue Boy
type: MusicAlbum
date published: 2016-05-25

THE BLUE BOY
type: MusicAlbum
date published: 2016-05-25
track: ヒーローは君と僕
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238173
  explicit: false
  by artist: Hideki Kaji
  in album: THE BLUE BOY
    type: MusicAlbum
    date published: 2016-05-25
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ901604870
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T19:04:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3d9998849cd44b37a93e2f6510b071bfa165a55d5245c2b83e2d2d4579ff739f
  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/JPJ901604870
  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 0x3d9998849cd44b37a93e2f6510b071bfa165a55d5245c2b83e2d2d4579ff739f. 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/JPJ901604870.
    date published: 2026-07-05T19:27:56Z
  audio: ヒーローは君と僕
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 128.031
    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: 0.507
    additional property: Energy
      type: PropertyValue
      value: 0.833
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.02
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.797
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.266
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

ピーキャン音頭
type: MusicAlbum
date published: 2018-07-25

秋のオリーブ
type: MusicAlbum
date published: 2018-08-29

秋のオリーブ
type: MusicAlbum
date published: 2018-09-05

秋のオリーブ
type: MusicAlbum
date published: 2018-09-05
track: きみはちから
  type: MusicRecording
  duration: PT2M5S
  duration ms: 125533
  explicit: false
  by artist: Hideki Kaji
  in album: 秋のオリーブ
    type: MusicAlbum
    date published: 2018-09-05
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ901808400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T15:44:19+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x892ad4e9ad0db19dd1728dab9043113d122afe5467ef42b415b4f72cc534cb26
  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/JPJ901808400
  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 0x892ad4e9ad0db19dd1728dab9043113d122afe5467ef42b415b4f72cc534cb26. 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/JPJ901808400.
    date published: 2026-07-18T19:27:02Z
  audio: きみはちから
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.03
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.586
    additional property: Energy
      type: PropertyValue
      value: 0.899
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.02
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.336
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.857
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.749
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

秋のオリーブ
type: MusicAlbum
date published: 2018-09-05

秋のオリーブ
type: MusicAlbum
date published: 2018-09-05

水飛沫とファンファーレ
type: MusicAlbum
date published: 2019-05-08

ノンノン・ソング
type: MusicAlbum
date published: 2019-05-22

ノンノン・ソング
type: MusicAlbum
date published: 2019-05-22

GOTH ROMANCE
type: MusicAlbum
date published: 2019-06-05

GOTH ROMANCE
type: MusicAlbum
date published: 2019-06-05

GOTH ROMANCE
type: MusicAlbum
date published: 2019-06-05

THE PERFECT DAY E.P.
type: MusicAlbum
date published: 2020-04-08

THE PERFECT DAY E.P.
type: MusicAlbum
date published: 2020-04-08

THE PERFECT DAY E.P.
type: MusicAlbum
date published: 2020-04-08

DREAMS NEVER END
type: MusicAlbum
date published: 2021-06-02

DREAMS NEVER END
type: MusicAlbum
date published: 2021-06-02
track: DREAMS NEVER END
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190448
  explicit: false
  by artist: Hideki Kaji
  in album: DREAMS NEVER END
    type: MusicAlbum
    date published: 2021-06-02
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ902103400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x913d16236871b208c22a100c8aa409f00ee669970320f6218bd036c08f241f9e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958428
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958428
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902103400
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T15:15:14Z
  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 0x913d16236871b208c22a100c8aa409f00ee669970320f6218bd036c08f241f9e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPJ902103400.
    date published: 2026-07-17T15:15:14Z
  audio: DREAMS NEVER END
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 134.984
    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: 0.697
    additional property: Energy
      type: PropertyValue
      value: 0.776
    additional property: Speechiness
      type: PropertyValue
      value: 0.029
    additional property: Acousticness
      type: PropertyValue
      value: 0.01
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.935
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.889
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

NAKED COFFEE AFFOGATO
type: MusicAlbum
date published: 2021-09-08

NAKED COFFEE AFFOGATO
type: MusicAlbum
date published: 2021-09-08

クレールの膝
type: MusicAlbum
date published: 2021-11-24

冬の野原を疾走する子供たち
type: MusicAlbum
date published: 2021-12-08

APRIL FOOL
type: MusicAlbum
date published: 2022-04-13

SUMMER SUNDAY SMILE
type: MusicAlbum
date published: 2022-07-20

きみのいない部屋
type: MusicAlbum
date published: 2022-12-07

WINTER SONGS FOR YOU!
type: MusicAlbum
date published: 2023-12-06
track: WE ARE THE BORDERS
  type: MusicRecording
  duration: PT3M12S
  duration ms: 192998
  explicit: false
  by artist: Hideki Kaji
  in album: WINTER SONGS FOR YOU!
    type: MusicAlbum
    date published: 2023-12-06
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ902304630
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T09:17:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x700b09d6bee43e0ae5dddd625c5b0abc8cfa9bbdddf00f4fe8893e1fd02384ef
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902304630
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700b09d6bee43e0ae5dddd625c5b0abc8cfa9bbdddf00f4fe8893e1fd02384ef. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPJ902304630.
    date published: 2026-07-18T12:14:37Z
  audio: WE ARE THE BORDERS
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.072
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.505
    additional property: Energy
      type: PropertyValue
      value: 0.906
    additional property: Speechiness
      type: PropertyValue
      value: 0.079
    additional property: Acousticness
      type: PropertyValue
      value: 0.005
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.33
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.9
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.962
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

BEING PURE AT HEART〜ありのままでいいんじゃない
type: MusicAlbum
date published: 2024-03-13

BEING PURE AT HEART〜ありのままでいいんじゃない
type: MusicAlbum
date published: 2024-04-24
track: NAKED COFFEE AFFOGATO
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194515
  explicit: false
  by artist: Hideki Kaji
  in album: BEING PURE AT HEART〜ありのままでいいんじゃない
    type: MusicAlbum
    date published: 2024-04-24
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ902109420
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T01:11:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x83ca91545ddd59980e27b73646b54b56dc3db1d16c66bf511d4d7ee9a4f737be
  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/JPJ902109420
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ca91545ddd59980e27b73646b54b56dc3db1d16c66bf511d4d7ee9a4f737be. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902109420.
    date published: 2026-07-16T02:28:43Z
  audio: NAKED COFFEE AFFOGATO
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 115.986
    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: 0.581
    additional property: Energy
      type: PropertyValue
      value: 0.8
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.027
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.214
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.851
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.382
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: DREAMS NEVER END
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190448
  explicit: false
  by artist: Hideki Kaji
  in album: BEING PURE AT HEART〜ありのままでいいんじゃない
    type: MusicAlbum
    date published: 2024-04-24
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: JPJ902103400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T12:33:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x913d16236871b208c22a100c8aa409f00ee669970320f6218bd036c08f241f9e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958377
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958377
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPJ902103400
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T06:48:00Z
  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 0x913d16236871b208c22a100c8aa409f00ee669970320f6218bd036c08f241f9e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPJ902103400.
    date published: 2026-07-17T06:48:00Z
  audio: DREAMS NEVER END
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135
    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: 0.68
    additional property: Energy
      type: PropertyValue
      value: 0.84
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.03
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.939
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.592
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Summer Girl
type: MusicAlbum
date published: 2025-07-02

Summer Girl
type: MusicAlbum
date published: 2025-07-02
track: Summer Girl - Instrumental
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233088
  explicit: false
  by artist: Hideki Kaji
  in album: Summer Girl
    type: MusicAlbum
    date published: 2025-07-02
  genre: city pop
  genre: japanese indie
  genre: shibuya-kei
  isrc code: TCJPI2574365
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T01:06:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b132b656ec31d62a36ee4198dd579803be28e85f863570e766f7e846e47dc78
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958484
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958484
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2574365
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T03:34:53Z
  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 0x9b132b656ec31d62a36ee4198dd579803be28e85f863570e766f7e846e47dc78. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/TCJPI2574365.
    date published: 2026-07-18T03:34:53Z
  audio: Summer Girl - Instrumental
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.973
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.739
    additional property: Energy
      type: PropertyValue
      value: 0.506
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.885
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.891
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.774
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

START A SUMMER
type: MusicAlbum
date published: 2025-07-23