タカオカミズキ
type: MusicGroup
genre: vocaloid
popularity: 25
followers: 2283
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x79d0a0df221b6c229d8a4b7ae2ed0800aa322f1b73ff877c94468f014e194c53
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/c5ce0e72-cc06-47f5-b981-b46b2d83fe1b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5ce0e72-cc06-47f5-b981-b46b2d83fe1b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5ce0e72-cc06-47f5-b981-b46b2d83fe1b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x79d0a0df221b6c229d8a4b7ae2ed0800aa322f1b73ff877c94468f014e194c53","name":"タカオカミズキ","registered_at":"2026-06-12T09:23:46Z","symbol":"NIM0255146","token_address":"0x43d710386ad6bdcb6bb4d21e5a2fa11941fa93f3","type":"artist","uuid":"c5ce0e72-cc06-47f5-b981-b46b2d83fe1b"}
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 0x79d0a0df221b6c229d8a4b7ae2ed0800aa322f1b73ff877c94468f014e194c53. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5ce0e72-cc06-47f5-b981-b46b2d83fe1b.json and https://artists.proofprofile.net/proofs/artist/c5ce0e72-cc06-47f5-b981-b46b2d83fe1b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x79d0a0df221b6c229d8a4b7ae2ed0800aa322f1b73ff877c94468f014e194c53","name":"タカオカミズキ","registered_at":"2026-06-12T09:23:46Z","symbol":"NIM0255146","token_address":"0x43d710386ad6bdcb6bb4d21e5a2fa11941fa93f3","type":"artist","uuid":"c5ce0e72-cc06-47f5-b981-b46b2d83fe1b"}
album: 英雄 運命の詩 [feat. 結月ゆかり] (cover ver.)
  type: MusicAlbum
  date published: 2017-12-01
album: Eiyu Fate‘s Song (cover ver.) [feat. Eleanor Forte]
  type: MusicAlbum
  date published: 2018-10-09
album: I beg you (cover ver.) [feat. 結月ゆかり]
  type: MusicAlbum
  date published: 2019-04-23
album: 紅蓮華 (Cover)
  type: MusicAlbum
  date published: 2019-09-21
album: Unnamed
  type: MusicAlbum
  date published: 2020-02-11
album: 春はゆく [feat. 結月ゆかり] (cover ver.)
  type: MusicAlbum
  date published: 2020-05-20
album: theater D (cover ver.) [feat. 鳴花ヒメ・ミコト]
  type: MusicAlbum
  date published: 2020-09-21
album: ANIMA (cover ver.) [feat. flower]
  type: MusicAlbum
  date published: 2020-10-30
album: 炎 (feat. 結月ゆかり) [cover ver.]
  type: MusicAlbum
  date published: 2021-02-07
album: The Everlasting Guilty Crown (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-03-19
album: うまぴょい伝説 (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-08-08
album: 三原色 (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-09-08
album: 愛のシュプリーム！ (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-09-23
album: 大正浪漫 (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-10-10
album: 往け (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2021-11-16
album: 残響散歌 (feat. IA) [cover ver.]
  type: MusicAlbum
  date published: 2022-01-19
album: ミックスナッツ (feat. Ryo) [cover ver.]
  type: MusicAlbum
  date published: 2022-05-01
album: ミックスナッツ (feat. 小春六花) [cover ver.]
  type: MusicAlbum
  date published: 2022-06-02
album: 伍越同舟 (feat. Ryo) [cover ver.]
  type: MusicAlbum
  date published: 2022-06-07
album: フォニイ (feat. 夏色花梨) [Cover]
  type: MusicAlbum
  date published: 2022-08-07
  track: フォニイ - Cover
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189000
    explicit: false
    by artist: タカオカミズキ
    in album: フォニイ (feat. 夏色花梨) [Cover]
      type: MusicAlbum
      date published: 2022-08-07
    genre: vocaloid
    isrc code: TCJPS2265952
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T01:41:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6f0e1b63a2e4742cd727399989ccf92055c1fba34e4b4b3847dd0b0f4c7d2c13
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2265952
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x6f0e1b63a2e4742cd727399989ccf92055c1fba34e4b4b3847dd0b0f4c7d2c13. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2265952 — a six-check JSON result.
      date published: 2026-07-04T11:19:20Z
    audio: フォニイ - Cover
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.991
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.668
      additional property: Energy
        type: PropertyValue
        value: 0.787
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.013
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.211
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.608
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.796
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: 喜劇 (feat. KAITO) [Cover]
  type: MusicAlbum
  date published: 2022-08-12
album: AIAIAI (feat. #kzn) [Cover]
  type: MusicAlbum
  date published: 2022-08-18
album: 花の塔 (feat. 小春六花) [Cover]
  type: MusicAlbum
  date published: 2022-09-13
  track: 花の塔 - Cover
    type: MusicRecording
    duration: PT4M35S
    duration ms: 275614
    explicit: false
    by artist: タカオカミズキ
    in album: 花の塔 (feat. 小春六花) [Cover]
      type: MusicAlbum
      date published: 2022-09-13
    genre: vocaloid
    isrc code: TCJPS2299577
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: 花の塔 - Cover
album: 神っぽいな (feat. 夏色花梨) [Cover]
album: 祝福 (feat. 小春六花) [Cover]
album: シル・ヴ・プレジデント (feat. 夏色花梨) [Cover]
album: きゅうくらりん (feat. 花隈千冬) [Cover]
album: デビルじゃないもん (feat. 夏色花梨) [Cover]
album: キャットラビング (feat. 花隈千冬) [Cover]
album: サンドリヨン (feat. 夏色花梨 & 小春六花) [Cover]
album: フォニイ (feat. 重音テト) [Cover]
album: アイドル (feat. 夏色花梨) [Cover]
album: アイドル (feat. 重音テト) [Cover]
album: 天ノ弱 (feat. 小春六花) [Cover]
album: 神っぽいな (feat. 重音テト) [Cover]
album: slash (feat. 小春六花) [Cover]
album: 強風オールバック (feat. 重音テト) [Cover]
album: Overdose (feat. 小春六花) [Cover]
album: マーシャル・マキシマイザー (feat. 弦巻マキ) [Cover]
album: おちゃめ機能 (feat. 重音テト) [Cover]
album: ラビットホール (feat. 夏色花梨) [Cover]
album: グッバイ宣言 (feat. 夏色花梨) [Cover]
album: 勇者 (feat. 初音ミク) [Cover]
album: 酔いどれ知らず (feat. GUMI) [Cover]
album: 天ノ弱 (feat. GUMI) [Cover]
album: 天ノ弱 (feat. 重音テト) [Cover]
album: GURU (feat. IA) [Cover]
album: 強風オールバック (feat. 花隈千冬) [Cover]
album: キメラ (feat. 重音テト) [Cover]
album: 魔法少女とチョコレゐト (feat. 夏色花梨) [Cover]
album: UNDEAD (feat. 初音ミク) [Cover]
album: ロウワー (feat. 重音テト) [Cover]
album: ビビデバ (feat. 初音ミク) [Cover]
album: オーバーライド (feat. 初音ミク) [Cover]
album: TAIDADA (feat. 初音ミク) [Cover]
album: why, or why not (feat. 小春六花) [Cover]
album: 化けの花 (feat. 重音テト) [Cover]
album: モニタリング (feat. 重音テト) [Cover]
album: シル・ヴ・プレジデント (feat. 重音テト) [Cover]
album: グッバイ宣言 (feat. 重音テト) [Cover]
album: 強風オールバック (feat. 雨衣) [Cover]
album: 粛聖!! ロリ神レクイエム☆ (feat. 雨衣) [Cover]
album: キャットラビング (feat. 重音テト) [Cover]
album: きゅうくらりん (feat. 雨衣) [Cover]

CopyrightID
type: PropertyValue

CopyrightStatus
type: PropertyValue
value: registered

CopyrightRegisteredAt
type: PropertyValue
value: 2026-07-06T04:18:25+00:00

CopyrightChainExplorerURL
type: PropertyValue
value: https://explorer.copyrightchains.com/tx/0xabcd708b49deaec1620524bce109cd6d916a17f2931e3c7df03b49a7574e08d1

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956889

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956889

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2299577

OTSTimestamp
type: PropertyValue
value: 2026-07-06T06:56:49Z

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 0xabcd708b49deaec1620524bce109cd6d916a17f2931e3c7df03b49a7574e08d1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2299577 — a six-check JSON result.
date published: 2026-07-06T06:56:49Z

花の塔 - Cover
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 170.043
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: 0.503
additional property: Energy
  type: PropertyValue
  value: 0.893
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.059
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.239
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.705
additional property: Loudness (dB)
  type: PropertyValue
  value: -1.78
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

神っぽいな (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2022-09-21
track: 神っぽいな - Cover
  type: MusicRecording
  duration: PT3M24S
  duration ms: 204000
  explicit: false
  by artist: タカオカミズキ
  in album: 神っぽいな (feat. 夏色花梨) [Cover]
    type: MusicAlbum
    date published: 2022-09-21
  genre: vocaloid
  isrc code: TCJPS2299582
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x56a429ba9d929d0dc87e826bea465a7acfd3ad0dd5bd905f62bf152dd1c19e9f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959114
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959114
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2299582
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T08:41:42Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x56a429ba9d929d0dc87e826bea465a7acfd3ad0dd5bd905f62bf152dd1c19e9f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2299582 — a six-check JSON result.
    date published: 2026-07-22T08:41:42Z
  audio: 神っぽいな - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.036
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.644
    additional property: Energy
      type: PropertyValue
      value: 0.851
    additional property: Speechiness
      type: PropertyValue
      value: 0.165
    additional property: Acousticness
      type: PropertyValue
      value: 0.214
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.076
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.52
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.761
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor

祝福 (feat. 小春六花) [Cover]
type: MusicAlbum
date published: 2022-11-13

シル・ヴ・プレジデント (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2023-01-06

きゅうくらりん (feat. 花隈千冬) [Cover]
type: MusicAlbum
date published: 2023-03-06
track: きゅうくらりん - Cover
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214363
  explicit: false
  by artist: タカオカミズキ
  in album: きゅうくらりん (feat. 花隈千冬) [Cover]
    type: MusicAlbum
    date published: 2023-03-06
  genre: vocaloid
  isrc code: TCJPU2342239
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T10:03:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe5c901be434a169a5e37a6f299b840015c25180bef8785008edcf19616b74231
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2342239
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c901be434a169a5e37a6f299b840015c25180bef8785008edcf19616b74231. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2342239 — a six-check JSON result.
    date published: 2026-07-03T19:59:51Z
  audio: きゅうくらりん - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.044
    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: 0.678
    additional property: Energy
      type: PropertyValue
      value: 0.85
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.004
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.177
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.927
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.796
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

デビルじゃないもん (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2023-03-07

キャットラビング (feat. 花隈千冬) [Cover]
type: MusicAlbum
date published: 2023-03-21
track: キャットラビング - Cover
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117256
  explicit: false
  by artist: タカオカミズキ
  in album: キャットラビング (feat. 花隈千冬) [Cover]
    type: MusicAlbum
    date published: 2023-03-21
  genre: vocaloid
  isrc code: TCJPV2315615
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T20:02:44+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x89c81aaccc708cdf11459db296c42ade1b383022cd739feb5dc6773a695ef069
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2315615
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c81aaccc708cdf11459db296c42ade1b383022cd739feb5dc6773a695ef069. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2315615 — a six-check JSON result.
    date published: 2026-07-05T01:12:41Z
  audio: キャットラビング - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.012
    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: 0.713
    additional property: Energy
      type: PropertyValue
      value: 0.858
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.192
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.104
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.88
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.764
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

サンドリヨン (feat. 夏色花梨 & 小春六花) [Cover]
type: MusicAlbum
date published: 2023-04-19
track: サンドリヨン - Cover
  type: MusicRecording
  duration: PT4M39S
  duration ms: 279591
  explicit: false
  by artist: タカオカミズキ
  in album: サンドリヨン (feat. 夏色花梨 & 小春六花) [Cover]
    type: MusicAlbum
    date published: 2023-04-19
  genre: vocaloid
  isrc code: TCJPV2367818
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T08:00:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb96218763adfb9331978c01df8aa022171d686707069950f9f862dc3858b74bb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958122
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958122
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2367818
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T08:02:29Z
  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 0xb96218763adfb9331978c01df8aa022171d686707069950f9f862dc3858b74bb. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/TCJPV2367818 — a six-check JSON result.
    date published: 2026-07-15T08:02:29Z
  audio: サンドリヨン - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.046
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.601
    additional property: Energy
      type: PropertyValue
      value: 0.781
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.015
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.005
    additional property: Liveness
      type: PropertyValue
      value: 0.215
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.226
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.237
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

フォニイ (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2023-04-29
track: フォニイ - Cover
  type: MusicRecording
  duration: PT3M8S
  duration ms: 188000
  explicit: false
  by artist: タカオカミズキ
  in album: フォニイ (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2023-04-29
  genre: vocaloid
  isrc code: TCJPV2367819
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T10:00:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb58d13f22a0ce87b98844ffdacc0b8619e0b87471665f12de55ead90f1389a6a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958276
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958276
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2367819
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T10:20:17Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58d13f22a0ce87b98844ffdacc0b8619e0b87471665f12de55ead90f1389a6a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2367819 — a six-check JSON result.
    date published: 2026-07-16T10:20:17Z
  audio: フォニイ - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 170.005
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.582
    additional property: Energy
      type: PropertyValue
      value: 0.84
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.345
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.662
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.205
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

アイドル (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2023-05-06

アイドル (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2023-05-06
track: アイドル - Cover
  type: MusicRecording
  duration: PT3M33S
  duration ms: 213227
  explicit: false
  by artist: タカオカミズキ
  in album: アイドル (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2023-05-06
  genre: vocaloid
  isrc code: TCJPV2391298
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T19:02:39+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc53ac75349e9d3f841a7141b490ddf516dfd63599e27dd96497d25b0f528e3aa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958316
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958316
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2391298
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T19:42:29Z
  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 0xc53ac75349e9d3f841a7141b490ddf516dfd63599e27dd96497d25b0f528e3aa. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCJPV2391298 — a six-check JSON result.
    date published: 2026-07-16T19:42:29Z
  audio: アイドル - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.741
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.475
    additional property: Energy
      type: PropertyValue
      value: 0.867
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.047
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.414
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.932
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.871
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

天ノ弱 (feat. 小春六花) [Cover]
type: MusicAlbum
date published: 2023-05-17

神っぽいな (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2023-05-23
track: 神っぽいな - Cover
  type: MusicRecording
  duration: PT3M24S
  duration ms: 204000
  explicit: false
  by artist: タカオカミズキ
  in album: 神っぽいな (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2023-05-23
  genre: vocaloid
  isrc code: TCJPV2399081
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T03:30:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc9e7aa422d02a94fe74dff0afd2a74be5db22905b91776cbcf67387bae4641b5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958234
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958234
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPV2399081
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T03:46:09Z
  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 0xc9e7aa422d02a94fe74dff0afd2a74be5db22905b91776cbcf67387bae4641b5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCJPV2399081 — a six-check JSON result.
    date published: 2026-07-16T03:46:09Z
  audio: 神っぽいな - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.903
    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: 0.535
    additional property: Energy
      type: PropertyValue
      value: 0.799
    additional property: Speechiness
      type: PropertyValue
      value: 0.071
    additional property: Acousticness
      type: PropertyValue
      value: 0.079
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.105
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.595
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.228
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

slash (feat. 小春六花) [Cover]
type: MusicAlbum
date published: 2023-05-31

強風オールバック (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2023-06-07

Overdose (feat. 小春六花) [Cover]
type: MusicAlbum
date published: 2023-07-07

マーシャル・マキシマイザー (feat. 弦巻マキ) [Cover]
type: MusicAlbum
date published: 2023-07-10
track: マーシャル・マキシマイザー - Cover
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166736
  explicit: false
  by artist: タカオカミズキ
  in album: マーシャル・マキシマイザー (feat. 弦巻マキ) [Cover]
    type: MusicAlbum
    date published: 2023-07-10
  genre: vocaloid
  isrc code: TCJPW2362943
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T10:34:13+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x99d74989db30b0a2d2832b7b0330417330b5b5aca0c915a0c8b258856918b050
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956822
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956822
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2362943
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T18:48:28Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x99d74989db30b0a2d2832b7b0330417330b5b5aca0c915a0c8b258856918b050. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2362943 — a six-check JSON result.
    date published: 2026-07-05T18:48:28Z
  audio: マーシャル・マキシマイザー - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 189.99
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.629
    additional property: Energy
      type: PropertyValue
      value: 0.947
    additional property: Speechiness
      type: PropertyValue
      value: 0.166
    additional property: Acousticness
      type: PropertyValue
      value: 0.24
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.264
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.554
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.199
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

おちゃめ機能 (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2023-09-01

ラビットホール (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2023-09-27

グッバイ宣言 (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2023-10-26
track: グッバイ宣言 - Cover
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172000
  explicit: false
  by artist: タカオカミズキ
  in album: グッバイ宣言 (feat. 夏色花梨) [Cover]
    type: MusicAlbum
    date published: 2023-10-26
  genre: vocaloid
  isrc code: TCJPX2385481
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T15:23:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7d8354e7e6f8c0c5345406f88e5a95c59766feb0ddd505674a1c5af060068eae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2385481
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8354e7e6f8c0c5345406f88e5a95c59766feb0ddd505674a1c5af060068eae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2385481 — a six-check JSON result.
    date published: 2026-07-05T10:01:46Z
  audio: グッバイ宣言 - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 169.977
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.637
    additional property: Energy
      type: PropertyValue
      value: 0.964
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.239
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.875
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.377
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

勇者 (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2023-11-16
track: 勇者 - Cover
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194163
  explicit: false
  by artist: タカオカミズキ
  in album: 勇者 (feat. 初音ミク) [Cover]
    type: MusicAlbum
    date published: 2023-11-16
  genre: vocaloid
  isrc code: TCJPX2399155
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T18:58:02+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x295c59fb197c73fe2ca8a1b11cea58582f350f5439f2eb0606262315dbf1fad9
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958600
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958600
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2399155
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:24:05Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295c59fb197c73fe2ca8a1b11cea58582f350f5439f2eb0606262315dbf1fad9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPX2399155 — a six-check JSON result.
    date published: 2026-07-18T19:24:05Z
  audio: 勇者 - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.862
    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: 0.571
    additional property: Energy
      type: PropertyValue
      value: 0.857
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.014
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.245
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.6
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.053
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

酔いどれ知らず (feat. GUMI) [Cover]
type: MusicAlbum
date published: 2023-12-30

天ノ弱 (feat. GUMI) [Cover]
type: MusicAlbum
date published: 2024-01-06

天ノ弱 (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2024-03-12
track: 天ノ弱 - Cover
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184911
  explicit: false
  by artist: タカオカミズキ
  in album: 天ノ弱 (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2024-03-12
  genre: vocaloid
  isrc code: TCJPZ2463161
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x82eaf2b5f0e566144e539dbdc59bd07e12d0570c3d184974673b3ef758f77f2b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPZ2463161
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:12:23Z
  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 0x82eaf2b5f0e566144e539dbdc59bd07e12d0570c3d184974673b3ef758f77f2b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCJPZ2463161 — a six-check JSON result.
    date published: 2026-07-17T19:12:23Z
  audio: 天ノ弱 - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.031
    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: 0.552
    additional property: Energy
      type: PropertyValue
      value: 0.975
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.028
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.337
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.564
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.627
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

GURU (feat. IA) [Cover]
type: MusicAlbum
date published: 2024-04-23

強風オールバック (feat. 花隈千冬) [Cover]
type: MusicAlbum
date published: 2024-06-01

キメラ (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2024-06-02
track: キメラ - Cover
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165000
  explicit: false
  by artist: タカオカミズキ
  in album: キメラ (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2024-06-02
  genre: vocaloid
  isrc code: TCJPA2440311
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T15:07:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8120b79d0d37ddc9d1cc4d3b3032f6f7056a4b1a9010b0b7e17b89555cccc4d4
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2440311
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  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 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 0x8120b79d0d37ddc9d1cc4d3b3032f6f7056a4b1a9010b0b7e17b89555cccc4d4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2440311 — a six-check JSON result.
    date published: 2026-07-16T16:14:30Z
  audio: キメラ - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 105.984
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.587
    additional property: Energy
      type: PropertyValue
      value: 0.921
    additional property: Speechiness
      type: PropertyValue
      value: 0.037
    additional property: Acousticness
      type: PropertyValue
      value: 0.019
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.321
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.941
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.475
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

魔法少女とチョコレゐト (feat. 夏色花梨) [Cover]
type: MusicAlbum
date published: 2024-08-23
track: 魔法少女とチョコレゐト - Cover
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189000
  explicit: false
  by artist: タカオカミズキ
  in album: 魔法少女とチョコレゐト (feat. 夏色花梨) [Cover]
    type: MusicAlbum
    date published: 2024-08-23
  genre: vocaloid
  isrc code: TCJPB2454578
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T01:11:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb7338a02d97a1aa7ac8a14edd8eaeb8a493dcecab84e5302a4205571327d8c71
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958639
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958639
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2454578
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T01:18:30Z
  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 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 0xb7338a02d97a1aa7ac8a14edd8eaeb8a493dcecab84e5302a4205571327d8c71. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2454578 — a six-check JSON result.
    date published: 2026-07-19T01:18:30Z
  audio: 魔法少女とチョコレゐト - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.015
    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: 0.729
    additional property: Energy
      type: PropertyValue
      value: 0.891
    additional property: Speechiness
      type: PropertyValue
      value: 0.058
    additional property: Acousticness
      type: PropertyValue
      value: 0.082
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.235
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.87
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.789
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

UNDEAD (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2024-09-13

ロウワー (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2024-10-04
track: ロウワー - Cover
  type: MusicRecording
  duration: PT3M50S
  duration ms: 230000
  explicit: false
  by artist: タカオカミズキ
  in album: ロウワー (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2024-10-04
  genre: vocaloid
  isrc code: TCJPB2473711
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T12:04:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd5c16f278266cf5dc4066e49083093332e842743acbc5630182a14577d008b17
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2473711
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c16f278266cf5dc4066e49083093332e842743acbc5630182a14577d008b17. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPB2473711 — a six-check JSON result.
    date published: 2026-07-05T01:12:41Z
  audio: ロウワー - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 132.022
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.589
    additional property: Energy
      type: PropertyValue
      value: 0.98
    additional property: Speechiness
      type: PropertyValue
      value: 0.048
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.132
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.809
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.03
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

ビビデバ (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2024-10-11
track: ビビデバ - Cover
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165000
  explicit: false
  by artist: タカオカミズキ
  in album: ビビデバ (feat. 初音ミク) [Cover]
    type: MusicAlbum
    date published: 2024-10-11
  genre: vocaloid
  isrc code: TCJPA2449613
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T08:36:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe59f8cafe9288b22be2b2149bd9c67519e17cb0127c6dc03e1dee7c6cfd067c2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2449613
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59f8cafe9288b22be2b2149bd9c67519e17cb0127c6dc03e1dee7c6cfd067c2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPA2449613 — a six-check JSON result.
    date published: 2026-07-05T10:01:46Z
  audio: ビビデバ - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.949
    additional property: Musical Key
      type: PropertyValue
      value: 3
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.7
    additional property: Energy
      type: PropertyValue
      value: 0.821
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.048
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.927
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.419
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

オーバーライド (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2024-11-15
track: オーバーライド - Cover
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138236
  explicit: false
  by artist: タカオカミズキ
  in album: オーバーライド (feat. 初音ミク) [Cover]
    type: MusicAlbum
    date published: 2024-11-15
  genre: vocaloid
  isrc code: TCJPC2420794
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x266c40912bde9f58dd017f2fa55afd7bdd7924fa377fe7ab0425a06788590aff
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958468
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958468
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2420794
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T00:27:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266c40912bde9f58dd017f2fa55afd7bdd7924fa377fe7ab0425a06788590aff. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPC2420794 — a six-check JSON result.
    date published: 2026-07-18T00:27:51Z
  audio: オーバーライド - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.017
    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: 0.722
    additional property: Energy
      type: PropertyValue
      value: 0.911
    additional property: Speechiness
      type: PropertyValue
      value: 0.09
    additional property: Acousticness
      type: PropertyValue
      value: 0.044
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.041
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.697
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.882
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

TAIDADA (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2025-01-17

why, or why not (feat. 小春六花) [Cover]
type: MusicAlbum
date published: 2025-01-18
track: why,or why not - Cover
  type: MusicRecording
  duration: PT5M34S
  duration ms: 334949
  explicit: false
  by artist: タカオカミズキ
  in album: why, or why not (feat. 小春六花) [Cover]
    type: MusicAlbum
    date published: 2025-01-18
  genre: vocaloid
  isrc code: TCJPD2550318
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T07:08:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xff0b6ed69eb27d8ddf7824e1c2a9ed8be9a90cb5a9d78b78166fbb6312f3723c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958383
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958383
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2550318
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T08:20:01Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xff0b6ed69eb27d8ddf7824e1c2a9ed8be9a90cb5a9d78b78166fbb6312f3723c. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPD2550318 — a six-check JSON result.
    date published: 2026-07-17T08:20:01Z
  audio: why,or why not - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.045
    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: 0.537
    additional property: Energy
      type: PropertyValue
      value: 0.781
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.022
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.126
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.252
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.959
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

化けの花 (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-02-15

モニタリング (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-03-28

シル・ヴ・プレジデント (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-04-19
track: シル・ヴ・プレジデント - Cover
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190500
  explicit: false
  by artist: タカオカミズキ
  in album: シル・ヴ・プレジデント (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2025-04-19
  genre: vocaloid
  isrc code: TCJPG2543418
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8cb9a98cd5f6bf2d1e46f9bc5eed46e11171130700fd6e5746987e2884482194
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958792
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958792
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2543418
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T22:55:52Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb9a98cd5f6bf2d1e46f9bc5eed46e11171130700fd6e5746987e2884482194. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPG2543418 — a six-check JSON result.
    date published: 2026-07-19T22:55:52Z
  audio: シル・ヴ・プレジデント - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 176.047
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.534
    additional property: Energy
      type: PropertyValue
      value: 0.94
    additional property: Speechiness
      type: PropertyValue
      value: 0.078
    additional property: Acousticness
      type: PropertyValue
      value: 0.037
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.267
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.768
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.806
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

グッバイ宣言 (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-05-24
track: グッバイ宣言 - Cover
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172000
  explicit: false
  by artist: タカオカミズキ
  in album: グッバイ宣言 (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2025-05-24
  genre: vocaloid
  isrc code: TCJPH2586577
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T12:32:35+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0e24688cdc415915faaab8917084f46963c0bd2b4db11f8cf448d11f63b15495
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958300
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958300
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2586577
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T16:14:30Z
  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 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 0x0e24688cdc415915faaab8917084f46963c0bd2b4db11f8cf448d11f63b15495. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPH2586577 — a six-check JSON result.
    date published: 2026-07-16T16:14:30Z
  audio: グッバイ宣言 - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 170.072
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.543
    additional property: Energy
      type: PropertyValue
      value: 0.95
    additional property: Speechiness
      type: PropertyValue
      value: 0.044
    additional property: Acousticness
      type: PropertyValue
      value: 0.005
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.331
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.868
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.339
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

強風オールバック (feat. 雨衣) [Cover]
type: MusicAlbum
date published: 2025-05-31
track: 強風オールバック - Cover
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136666
  explicit: false
  by artist: タカオカミズキ
  in album: 強風オールバック (feat. 雨衣) [Cover]
    type: MusicAlbum
    date published: 2025-05-31
  genre: vocaloid
  isrc code: TCJPI2517397
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xec207f4104b6f2735db81520ca3a1ff10426e80e7741af8ebf8397e6c9b64f2a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959144
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959144
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2517397
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T15:38:35Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec207f4104b6f2735db81520ca3a1ff10426e80e7741af8ebf8397e6c9b64f2a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2517397 — a six-check JSON result.
    date published: 2026-07-22T15:38:35Z
  audio: 強風オールバック - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.01
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.89
    additional property: Energy
      type: PropertyValue
      value: 0.618
    additional property: Speechiness
      type: PropertyValue
      value: 0.076
    additional property: Acousticness
      type: PropertyValue
      value: 0.031
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.359
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.951
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.36
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor

粛聖!! ロリ神レクイエム☆ (feat. 雨衣) [Cover]
type: MusicAlbum
date published: 2025-06-07
track: 粛聖!! ロリ神レクイエム☆ - Cover
  type: MusicRecording
  duration: PT4M33S
  duration ms: 273599
  explicit: false
  by artist: タカオカミズキ
  in album: 粛聖!! ロリ神レクイエム☆ (feat. 雨衣) [Cover]
    type: MusicAlbum
    date published: 2025-06-07
  genre: vocaloid
  isrc code: TCJPI2544585
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T05:24:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xde853d157a153cf165cfd900efa06dc6e9218251d126e6c8624def4a8df5a253
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544585
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde853d157a153cf165cfd900efa06dc6e9218251d126e6c8624def4a8df5a253. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2544585 — a six-check JSON result.
    date published: 2026-07-05T10:01:46Z
  audio: 粛聖!! ロリ神レクイエム☆ - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.043
    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: 0.558
    additional property: Energy
      type: PropertyValue
      value: 0.947
    additional property: Speechiness
      type: PropertyValue
      value: 0.321
    additional property: Acousticness
      type: PropertyValue
      value: 0.051
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.087
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.486
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.847
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

キャットラビング (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-06-11
track: キャットラビング - Cover
  type: MusicRecording
  duration: PT1M57S
  duration ms: 117256
  explicit: false
  by artist: タカオカミズキ
  in album: キャットラビング (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2025-06-11
  genre: vocaloid
  isrc code: TCJPI2565933
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T00:23:07+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x12146f2e545a0c4e802803ee4020ebb0315e71d756e86f900886bc346365f20e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958473
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958473
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2565933
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T00:52:36Z
  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 0x12146f2e545a0c4e802803ee4020ebb0315e71d756e86f900886bc346365f20e. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/TCJPI2565933 — a six-check JSON result.
    date published: 2026-07-18T00:52:36Z
  audio: キャットラビング - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.023
    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: 0.637
    additional property: Energy
      type: PropertyValue
      value: 0.863
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.06
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.272
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.843
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.924
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

きゅうくらりん (feat. 雨衣) [Cover]
type: MusicAlbum
date published: 2025-06-14
track: きゅうくらりん - Cover
  type: MusicRecording
  duration: PT3M34S
  duration ms: 214363
  explicit: false
  by artist: タカオカミズキ
  in album: きゅうくらりん (feat. 雨衣) [Cover]
    type: MusicAlbum
    date published: 2025-06-14
  genre: vocaloid
  isrc code: TCJPI2582394
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x20688269ff3e7b40c4712dbc43927e46f865bb11aa766303fb345c7f259d08f3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958796
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958796
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2582394
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T00:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20688269ff3e7b40c4712dbc43927e46f865bb11aa766303fb345c7f259d08f3. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI2582394 — a six-check JSON result.
    date published: 2026-07-20T00:01:46Z
  audio: きゅうくらりん - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.049
    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: 0.663
    additional property: Energy
      type: PropertyValue
      value: 0.881
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.012
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.002
    additional property: Liveness
      type: PropertyValue
      value: 0.139
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.905
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.102
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

テトリス (feat. 雨衣) [Cover]
type: MusicAlbum
date published: 2025-06-28
track: テトリス - Cover
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142588
  explicit: false
  by artist: タカオカミズキ
  in album: テトリス (feat. 雨衣) [Cover]
    type: MusicAlbum
    date published: 2025-06-28
  genre: vocaloid
  isrc code: TCJPJ2519143
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe493e7f635c448eceefa9f2509f7636a442bb7dfbb7d4593ca80abbe0096ceb5
  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/TCJPJ2519143
  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 0xe493e7f635c448eceefa9f2509f7636a442bb7dfbb7d4593ca80abbe0096ceb5. 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/TCJPJ2519143 — a six-check JSON result.
    date published: 2026-07-17T06:09:33Z
  audio: テトリス - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 170.04
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.694
    additional property: Energy
      type: PropertyValue
      value: 0.954
    additional property: Speechiness
      type: PropertyValue
      value: 0.068
    additional property: Acousticness
      type: PropertyValue
      value: 0.155
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.215
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.754
    additional property: Loudness (dB)
      type: PropertyValue
      value: -1.659
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Watch me! (feat. 初音ミク) [Cover]
type: MusicAlbum
date published: 2025-07-17

天天天国地獄国 (feat. 初音ミク & 重音テト) [Cover]
type: MusicAlbum
date published: 2025-08-02

マーシャル・マキシマイザー (feat. 重音テト) [Cover]
type: MusicAlbum
date published: 2025-10-11
track: マーシャル・マキシマイザー (feat. 重音テト) - Cover
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163000
  explicit: false
  by artist: タカオカミズキ
  in album: マーシャル・マキシマイザー (feat. 重音テト) [Cover]
    type: MusicAlbum
    date published: 2025-10-11
  genre: vocaloid
  isrc code: TCJPL2523459
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T01:44:57+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1fa1a352d794e0fd4e61a6152bccb4f3b518cbfe91f0551ce47dcc52a4dc45e2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958480
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958480
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2523459
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T02:58:58Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1a352d794e0fd4e61a6152bccb4f3b518cbfe91f0551ce47dcc52a4dc45e2. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPL2523459 — a six-check JSON result.
    date published: 2026-07-18T02:58:58Z
  audio: マーシャル・マキシマイザー (feat. 重音テト) - Cover
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.867
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.607
    additional property: Energy
      type: PropertyValue
      value: 0.912
    additional property: Speechiness
      type: PropertyValue
      value: 0.085
    additional property: Acousticness
      type: PropertyValue
      value: 0.037
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.1
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.562
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.07
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

フォニイ (feat. 雨衣) [Cover]
type: MusicAlbum
date published: 2025-11-08