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type: MusicGroup
genre: vocaloid
description: , officially code-named CV01, is a mascot for a Vocaloid software voicebank developed by Crypton Future Media. She is depicted as a sixteen-year-old girl with long, turquoise twintails. Miku's personi
popularity: 71
followers: 2223149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45b6af7fbd348060926173f5c73c83a2687090c1a8109e67e28770a1b0ac5f7a
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/ad27e8fd-3e3d-49d2-b09e-11dd8f9426f7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad27e8fd-3e3d-49d2-b09e-11dd8f9426f7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad27e8fd-3e3d-49d2-b09e-11dd8f9426f7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b6af7fbd348060926173f5c73c83a2687090c1a8109e67e28770a1b0ac5f7a. 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/ad27e8fd-3e3d-49d2-b09e-11dd8f9426f7.json and https://artists.proofprofile.net/proofs/artist/ad27e8fd-3e3d-49d2-b09e-11dd8f9426f7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Miku
  type: MusicAlbum
  date published: 2016-05-24
  track: Miku
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223124
    explicit: false
    by artist: Anamanaguchi
    by artist: Hatsune Miku
    in album: Miku
      type: MusicAlbum
      date published: 2016-05-24
    popularity: 71
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    additional property: CopyrightStatus
      type: PropertyValue
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    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953513
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1654313
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:47:07Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xd9fd541781b2fdc438ca08629b5aa88a8389894ba6df717fe74739dcb5264e06. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P1654313.
      date published: 2026-06-13T12:47:07Z
    audio: Miku
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Musical Key
        type: PropertyValue
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      additional property: Mode (Major/Minor)
        type: PropertyValue
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.981
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
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album: HayashiHayuru EX
  type: MusicAlbum
  date published: 2024-05-13
album: M@GICAL CURE! LOVE SHOT!
  type: MusicAlbum
  date published: 2024-03-19
  track: M@GICAL CURE! LOVE SHOT! (feat. Hatsune Miku)
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201875
    explicit: false
    by artist: SAWTOWNE
    by artist: Hatsune Miku
    in album: M@GICAL CURE! LOVE SHOT!
      type: MusicAlbum
      date published: 2024-03-19
    popularity: 57
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953513
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400289
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T12:47:07Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xc48d507bdd859de71c432912046070412ff0ed9449d44c4241337668eb1bcf34. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400289.
      date published: 2026-06-13T12:47:07Z
    audio: M@GICAL CURE! LOVE SHOT! (feat. Hatsune Miku)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 192.031
      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: 0.526
      additional property: Energy
        type: PropertyValue
        value: 0.945
      additional property: Speechiness
        type: PropertyValue
        value: 0.107
      additional property: Acousticness
        type: PropertyValue
        value: 0.025
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: MikuFiesta
album: Why Do I (with Hatsune Miku)
album: きくおミク7
album: 39 Music!
album: Miku and The Machine
album: リボン
album: THE WALL
album: HayashiHayuru
album: HARMONICS
album: angel management
album: IMPOSSIBLE RISE
album: Half landing
album: Doubt Me!?
album: CHAPTER #1
album: 星空
album: 雨上がりに始まるストーリー
album: STORIES
album: 旭川ノスタルジア
album: 青く、優しく、光って。
album: Goth
album: Catchy Phrase
album: プロローグ
album: variscite
album: 20082021 Best Tracks Of Chiquewa
album: エポックメイキング
album: TOKYO EDEN
album: 生きてる意味がわからない
album: NEXT REMIXERS
album: unite / untie
album: MONOTONE NIGHT
album: Märchen
album: ERROR
album: ミクは踊るように
album: Hatsune Miku "Magical Mirai" 10th Anniversary Compilation MIRACLE SONGS
album: Hatsune Miku×Kamisama Usagi 2022 BEST
album: miku prays for you
album: 心に響く初音ミクのうた
album: 初音未来のミライ
album: 明るくたのしい初音ミクのうた
album: かっこいい初音ミクのうた
album: BOOK
album: 1つのミクの物語
album: Party Girl
album: おぎゃりないざー
album: 抜刀
album: TwintailWonderland
album: Diva the magic mirror
album: 暗夜回忆录
album: Encounter
album: Coconut Cream Kiss
album: DIVA
track: AaAaAaAAaAaAAa
track: ワールドイズマイン-初音ミク「マジカルミライ 2021」Live- (feat. 初音ミク)
track: Anonymous M
track: Tell Your World
track: My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
track: Daijina Hanashi wo Kokuhaku to itte shimatta uta
track: 君色マリンスノウ (feat. 初音ミク)
track: Sharing the World (feat. Hatsune Miku) [Album ver.]
track: Deathgore

Instrumentalness
type: PropertyValue
value: 0.542

Liveness
type: PropertyValue
value: 0.187

Valence (Positivity)
type: PropertyValue
value: 0.816

Loudness (dB)
type: PropertyValue
value: -3.944

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

MikuFiesta
type: MusicAlbum
date published: 2024-04-17
track: MikuFiesta (feat. 初音ミク)
  type: MusicRecording
  duration: PT4M6S
  duration ms: 246144
  explicit: false
  by artist: AlexTrip Sands
  by artist: Hatsune Miku
  in album: MikuFiesta
    type: MusicAlbum
    date published: 2024-04-17
  popularity: 41
  isrc code: JP92Q2400411
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T06:29:41+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x1a50abeb609ddc5502341d1cb3ccb3d6c28b4f28839775da237e6de9a98ee929
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400411
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1a50abeb609ddc5502341d1cb3ccb3d6c28b4f28839775da237e6de9a98ee929. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400411.
    date published: 2026-06-13T12:47:07Z
  audio: MikuFiesta (feat. 初音ミク)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.054
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.76
    additional property: Energy
      type: PropertyValue
      value: 0.98
    additional property: Speechiness
      type: PropertyValue
      value: 0.077
    additional property: Acousticness
      type: PropertyValue
      value: 0.045
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.025
    additional property: Liveness
      type: PropertyValue
      value: 0.043
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.954
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.12
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major

Why Do I (with Hatsune Miku)
type: MusicAlbum
date published: 2022-10-21
track: Why Do I (with Hatsune Miku)
  type: MusicRecording
  duration: PT2M34S
  duration ms: 154282
  explicit: false
  by artist: Set It Off
  by artist: Hatsune Miku
  in album: Why Do I (with Hatsune Miku)
    type: MusicAlbum
    date published: 2022-10-21
  genre: pixie
  genre: pov-indie
  genre: otacore
  genre: electropowerpop
  isrc code: US5262224977
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T04:02:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2bd0d7c4cb7c6639dd65e67e3507d693b04d3a0b41abf71c1367342014e4e9fc
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5262224977
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x2bd0d7c4cb7c6639dd65e67e3507d693b04d3a0b41abf71c1367342014e4e9fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US5262224977.
    date published: 2026-06-13T12:47:07Z
  audio: Why Do I (with Hatsune Miku)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.967
    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.795
    additional property: Energy
      type: PropertyValue
      value: 0.889
    additional property: Speechiness
      type: PropertyValue
      value: 0.111
    additional property: Acousticness
      type: PropertyValue
      value: 0.066
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.179
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.562
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.434
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

きくおミク7
type: MusicAlbum
date published: 2023-03-24
track: ふたつの木馬 (feat. 初音ミク)
  type: MusicRecording
  duration: PT0M39S
  duration ms: 39956
  explicit: false
  by artist: Kikuo
  by artist: Hatsune Miku
  in album: きくおミク7
    type: MusicAlbum
    date published: 2023-03-24
  genre: pov-indie
  genre: japanese-electropop
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T21:09:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6cb6b3a869c6527df53e23f2a3224657af05a3ceac4c5b1ffb2e30afefa2a222
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301214
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x6cb6b3a869c6527df53e23f2a3224657af05a3ceac4c5b1ffb2e30afefa2a222. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301214.
    date published: 2026-06-13T12:47:07Z
  audio: ふたつの木馬 (feat. 初音ミク)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 114.143
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.292
    additional property: Energy
      type: PropertyValue
      value: 0.653
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.037
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.984
    additional property: Liveness
      type: PropertyValue
      value: 0.289
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.607
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.89
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: イイコと妖狐
  type: MusicRecording
  duration: PT3M53S
  duration ms: 233286
  explicit: false
  by artist: Kikuo
  in album: きくおミク7
    type: MusicAlbum
    date published: 2023-03-24
  genre: pov-indie
  genre: japanese-electropop
  isrc code: JP92Q2300994
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T07:03:15+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x28a7eccddd169cd70a14f31dcf35389a33fed0540f1d1d8faf6f0aad125fe9ff
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2300994
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x28a7eccddd169cd70a14f31dcf35389a33fed0540f1d1d8faf6f0aad125fe9ff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2300994.
    date published: 2026-06-13T12:47:07Z
  audio: イイコと妖狐
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 142.867
    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: 0.69
    additional property: Energy
      type: PropertyValue
      value: 0.883
    additional property: Speechiness
      type: PropertyValue
      value: 0.072
    additional property: Acousticness
      type: PropertyValue
      value: 0.052
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.365
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.914
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.49
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: みずみずユッユ
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165220
  explicit: false
  by artist: Kikuo
  in album: きくおミク7
    type: MusicAlbum
    date published: 2023-03-24
  genre: pov-indie
  genre: japanese-electropop
  isrc code: JP92Q2301216
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-05T12:10:40+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x684f23a333f63c8f7a5238589e88a255f54507ea4f903ff90d202c6f4f865d52
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: みずみずユッユ
track: 見つかんない見つかんない
track: My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
track: カエルのおどり
track: ソワカの声 (feat. 初音ミク)
track: 深い森のなかで
track: きらいきらいきらいって
track: ナイフ、ナイフ、ナイフ (feat. 初音ミク)
track: 幽体離脱 (feat. 初音ミク)

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/953513

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301216

OTSTimestamp
type: PropertyValue
value: 2026-06-13T12:47:07Z

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 0x684f23a333f63c8f7a5238589e88a255f54507ea4f903ff90d202c6f4f865d52. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301216.
date published: 2026-06-13T12:47:07Z

みずみずユッユ
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 145.198
additional property: Musical Key
  type: PropertyValue
  value: 9
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.726
additional property: Energy
  type: PropertyValue
  value: 0.754
additional property: Speechiness
  type: PropertyValue
  value: 0.171
additional property: Acousticness
  type: PropertyValue
  value: 0.252
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.146
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.815
additional property: Loudness (dB)
  type: PropertyValue
  value: -11.874
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Major

見つかんない見つかんない
type: MusicRecording
duration: PT3M12S
duration ms: 192151
explicit: false
by artist: Kikuo
in album: きくおミク7
  type: MusicAlbum
  date published: 2023-03-24
genre: pov-indie
genre: japanese-electropop
isrc code: JP92Q2301217
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T06:45:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x875164bba0e6549509a003fb8ea49b31eee137f7ef16a5e9d64f591df69594de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301217
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x875164bba0e6549509a003fb8ea49b31eee137f7ef16a5e9d64f591df69594de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301217.
  date published: 2026-06-13T12:47:07Z
audio: 見つかんない見つかんない
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.04
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.715
  additional property: Energy
    type: PropertyValue
    value: 0.867
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.082
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.381
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.758
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.02
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
type: MusicRecording
duration: PT2M44S
duration ms: 164417
explicit: false
by artist: Kikuo
by artist: Hatsune Miku
in album: きくおミク7
  type: MusicAlbum
  date published: 2023-03-24
genre: pov-indie
genre: japanese-electropop
isrc code: JP92Q2200809
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:39:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47b0538128be108f0f59eeddfba1ca800f333719f385221fd54f20b216313d40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200809
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x47b0538128be108f0f59eeddfba1ca800f333719f385221fd54f20b216313d40. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200809.
  date published: 2026-06-13T12:47:07Z
audio: My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.075
  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: 0.409
  additional property: Energy
    type: PropertyValue
    value: 0.953
  additional property: Speechiness
    type: PropertyValue
    value: 0.076
  additional property: Acousticness
    type: PropertyValue
    value: 0.01
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.039
  additional property: Liveness
    type: PropertyValue
    value: 0.194
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.214
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.19
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

カエルのおどり
type: MusicRecording
duration: PT5M22S
duration ms: 322350
explicit: false
by artist: Kikuo
in album: きくおミク7
  type: MusicAlbum
  date published: 2023-03-24
genre: pov-indie
genre: japanese-electropop
isrc code: JP92Q2301219
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T12:09:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1310a4dd92035285d995aa99f011f16c8120003e2772920d29a7f5f9bf26ee95
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301219
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x1310a4dd92035285d995aa99f011f16c8120003e2772920d29a7f5f9bf26ee95. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301219.
  date published: 2026-06-13T12:47:07Z
audio: カエルのおどり
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 152.001
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.377
  additional property: Energy
    type: PropertyValue
    value: 0.659
  additional property: Speechiness
    type: PropertyValue
    value: 0.046
  additional property: Acousticness
    type: PropertyValue
    value: 0.09
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.34
  additional property: Loudness (dB)
    type: PropertyValue
    value: -12.694
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

ソワカの声 (feat. 初音ミク)
type: MusicRecording
duration: PT5M34S
duration ms: 334041
explicit: false
by artist: Kikuo
by artist: Hatsune Miku
in album: きくおミク7
  type: MusicAlbum
  date published: 2023-03-24
genre: pov-indie
genre: japanese-electropop
isrc code: JP92Q2200248
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:58:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7b06d2fe2ecb46b8d776edbd5b37cc53855967671acc797eff8eec5a176c698c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200248
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x7b06d2fe2ecb46b8d776edbd5b37cc53855967671acc797eff8eec5a176c698c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200248.
  date published: 2026-06-13T12:47:07Z
audio: ソワカの声 (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 140.419
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.622
  additional property: Energy
    type: PropertyValue
    value: 0.935
  additional property: Speechiness
    type: PropertyValue
    value: 0.057
  additional property: Acousticness
    type: PropertyValue
    value: 0.092
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.039
  additional property: Liveness
    type: PropertyValue
    value: 0.171
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.674
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.542
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

深い森のなかで
type: MusicRecording
duration: PT4M57S
duration ms: 297614
explicit: false
by artist: Kikuo
in album: きくおミク7
  type: MusicAlbum
  date published: 2023-03-24
genre: pov-indie
genre: japanese-electropop
isrc code: JP92Q2200874
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T09:58:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fb3a0eef06393d3054615ef3c68907f7f5978a5fe1e6d69f34c243e77f0d9ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200874
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-06-13T12:53:06Z
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きらいきらいきらいって
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: きらいきらいきらいって
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ナイフ、ナイフ、ナイフ (feat. 初音ミク)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:53:06Z
audio: ナイフ、ナイフ、ナイフ (feat. 初音ミク)
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幽体離脱 (feat. 初音ミク)
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: 幽体離脱 (feat. 初音ミク)
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39 Music!
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date published: 2017
track: 39 Music!
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-06-13T12:47:07Z
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Miku and The Machine
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リボン
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date published: 2024-04-28

THE WALL
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  subject of: OpenTimestamps Proof of Existence
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HayashiHayuru
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HARMONICS
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angel management
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IMPOSSIBLE RISE
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Half landing
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Doubt Me!?
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CHAPTER #1
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星空
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雨上がりに始まるストーリー
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STORIES
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旭川ノスタルジア
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青く、優しく、光って。
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Goth
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Catchy Phrase
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プロローグ
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variscite
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20082021 Best Tracks Of Chiquewa
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エポックメイキング
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  subject of: OpenTimestamps Proof of Existence
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      value: -7.467
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

TOKYO EDEN
type: MusicAlbum
date published: 2023-09-04

生きてる意味がわからない
type: MusicAlbum
date published: 2023-08-23

NEXT REMIXERS
type: MusicAlbum
date published: 2023-06-21

unite / untie
type: MusicAlbum
date published: 2023-05-31

MONOTONE NIGHT
type: MusicAlbum
date published: 2023-05-24

Märchen
type: MusicAlbum
date published: 2023-04-30

ERROR
type: MusicAlbum
date published: 2023-03-22
track: ERROR (feat. Lily)
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238500
  explicit: false
  by artist: Niki
  by artist: Lily
  in album: ERROR
    type: MusicAlbum
    date published: 2023-03-22
  isrc code: JP92Q2301179
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-07T05:46:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x29e5edbac9b72a68f71eb31830695ba4508c13f2f7bc92df647fb728ccac85d6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301179
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e5edbac9b72a68f71eb31830695ba4508c13f2f7bc92df647fb728ccac85d6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301179.
    date published: 2026-06-13T12:53:06Z
  audio: ERROR (feat. Lily)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 118.007
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.392
    additional property: Energy
      type: PropertyValue
      value: 0.84
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.007
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.347
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.359
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.97
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: REVERSE (feat. Lily)
  type: MusicRecording
  duration: PT2M48S
  duration ms: 168250
  explicit: false
  by artist: Niki
  by artist: Lily
  in album: ERROR
    type: MusicAlbum
    date published: 2023-03-22
  isrc code: JP92Q2301180
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-17T22:52:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x34fa7db67c9d9ac4e4a17105da3dbfc06e2adf537d1a6ebd1c21f36d74f1b9c6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301180
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fa7db67c9d9ac4e4a17105da3dbfc06e2adf537d1a6ebd1c21f36d74f1b9c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301180.
    date published: 2026-07-02T03:30:09Z
  audio: REVERSE (feat. Lily)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 131.584
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.426
    additional property: Energy
      type: PropertyValue
      value: 0.885
    additional property: Speechiness
      type: PropertyValue
      value: 0.074
    additional property: Acousticness
      type: PropertyValue
      value: 0.008
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.112
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.386
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.295
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
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track: ジッタードール (feat. Lily)
  type: MusicRecording
  duration: PT3M58S
  duration ms: 238620
  explicit: false
  by artist: Niki
  by artist: Lily
  in album: ERROR
    type: MusicAlbum
    date published: 2023-03-22
  isrc code: JP92Q2301182
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-09T16:40:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe3294b8af8ca407b918a3446fd047b9557fdbfbbdb1b701e50078d51a4b9a88b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: ジッタードール (feat. Lily)
track: Close to you (feat. Lily)

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301182

OTSTimestamp
type: PropertyValue
value: 2026-06-13T13:32:09Z

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 0xe3294b8af8ca407b918a3446fd047b9557fdbfbbdb1b701e50078d51a4b9a88b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301182.
date published: 2026-06-13T13:32:09Z

ジッタードール (feat. Lily)
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 172.513
additional property: Musical Key
  type: PropertyValue
  value: 11
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.27
additional property: Energy
  type: PropertyValue
  value: 0.885
additional property: Speechiness
  type: PropertyValue
  value: 0.098
additional property: Acousticness
  type: PropertyValue
  value: 0.002
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.14
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.49
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.466
additional property: Key Name
  type: PropertyValue
  value: B
additional property: Mode Name
  type: PropertyValue
  value: Major

Close to you (feat. Lily)
type: MusicRecording
duration: PT4M52S
duration ms: 292105
explicit: false
by artist: Niki
by artist: Lily
in album: ERROR
  type: MusicAlbum
  date published: 2023-03-22
isrc code: JP92Q2301183
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-09T16:40:04+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fcfd28a6ba2e267510cdd9937be13312d41a7aaf505bc8ac6aa05607b6d76f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301183
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x3fcfd28a6ba2e267510cdd9937be13312d41a7aaf505bc8ac6aa05607b6d76f6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301183.
  date published: 2026-06-13T13:32:09Z
audio: Close to you (feat. Lily)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 179.139
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.384
  additional property: Energy
    type: PropertyValue
    value: 0.929
  additional property: Speechiness
    type: PropertyValue
    value: 0.067
  additional property: Acousticness
    type: PropertyValue
    value: 0.03
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.352
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.56
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.298
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Major

ミクは踊るように
type: MusicAlbum
date published: 2023-02-27

Hatsune Miku "Magical Mirai" 10th Anniversary Compilation MIRACLE SONGS
type: MusicAlbum
date published: 2023-01-18

Hatsune Miku×Kamisama Usagi 2022 BEST
type: MusicAlbum
date published: 2022-09-12

miku prays for you
type: MusicAlbum
date published: 2022-08-01

心に響く初音ミクのうた
type: MusicAlbum
date published: 2022-05-21

初音未来のミライ
type: MusicAlbum
date published: 2022-03-09

明るくたのしい初音ミクのうた
type: MusicAlbum
date published: 2022-02-12

かっこいい初音ミクのうた
type: MusicAlbum
date published: 2022-02-05

BOOK
type: MusicAlbum
date published: 2022

1つのミクの物語
type: MusicAlbum
date published: 2021-11-18

Party Girl
type: MusicAlbum
date published: 2022-06-05

おぎゃりないざー
type: MusicAlbum
date published: 2023-12-27
track: おぎゃりないざー (feat. 初音ミク)
  type: MusicRecording
  duration: PT2M6S
  duration ms: 126648
  explicit: false
  by artist: Ponchi♪
  by artist: Hatsune Miku
  in album: おぎゃりないざー
    type: MusicAlbum
    date published: 2023-12-27
  popularity: 35
  genre: vocaloid
  isrc code: JP92Q2302111
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T16:39:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa4ba92362cf592d9ef5de69a651bd6c4bb704cb4f7174c2e4c33bf97a746ba01
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302111
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ba92362cf592d9ef5de69a651bd6c4bb704cb4f7174c2e4c33bf97a746ba01. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302111.
    date published: 2026-06-13T12:53:06Z
  audio: おぎゃりないざー (feat. 初音ミク)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.663
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.34
    additional property: Energy
      type: PropertyValue
      value: 0.993
    additional property: Speechiness
      type: PropertyValue
      value: 0.183
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.003
    additional property: Liveness
      type: PropertyValue
      value: 0.32
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.388
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.62
    additional property: Key Name
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抜刀
type: MusicAlbum
date published: 2023-08-28

TwintailWonderland
type: MusicAlbum
date published: 2022-05-10

Diva the magic mirror
type: MusicAlbum
date published: 2021-11-20

暗夜回忆录
type: MusicAlbum
date published: 2023-03-23

Encounter
type: MusicAlbum
date published: 2024-02-17
track: Encounter (feat. 初音ミク)
  type: MusicRecording
  duration: PT2M51S
  duration ms: 171789
  explicit: false
  by artist: Orangestar
  by artist: Hatsune Miku
  in album: Encounter
    type: MusicAlbum
    date published: 2024-02-17
  popularity: 39
  genre: vocaloid
  isrc code: JP92Q2400171
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-04T16:25:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xaf7edaeb9a10a7fdb180081acba174221910876fae5226ddddcdd91954efdeaa
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953513
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953513
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400171
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xaf7edaeb9a10a7fdb180081acba174221910876fae5226ddddcdd91954efdeaa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400171.
    date published: 2026-06-13T12:47:07Z
  audio: Encounter (feat. 初音ミク)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 95.394
    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: 0.664
    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.542
    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.528
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.986
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Coconut Cream Kiss
type: MusicAlbum
date published: 2025-05-05

DIVA
type: MusicAlbum
date published: 2025-11-26

AaAaAaAAaAaAAa
type: MusicRecording
duration: PT3M39S
duration ms: 219666
explicit: false
by artist: Nashimoto Ui
by artist: Hatsune Miku
in album: Owari
  type: MusicAlbum
  date published: 2009-11-15
popularity: 55
isrc code: TCJPS2210365
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T03:48:40+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3eaba31e909a741a8d37595a0be861c2868fa694188088adc2f7d1d247aeea1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2210365
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x3eaba31e909a741a8d37595a0be861c2868fa694188088adc2f7d1d247aeea1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPS2210365.
  date published: 2026-06-13T12:47:07Z
audio: AaAaAaAAaAaAAa
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 191.88
  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: 0.336
  additional property: Energy
    type: PropertyValue
    value: 0.946
  additional property: Speechiness
    type: PropertyValue
    value: 0.048
  additional property: Acousticness
    type: PropertyValue
    value: 0.002
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.018
  additional property: Liveness
    type: PropertyValue
    value: 0.09
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.552
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.401
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ワールドイズマイン-初音ミク「マジカルミライ 2021」Live- (feat. 初音ミク)
type: MusicRecording
duration: PT4M14S
duration ms: 254175
explicit: false
by artist: ryo (supercell)
by artist: Hatsune Miku
in album: 初音ミク「マジカルミライ 2021」[Live]
  type: MusicAlbum
  date published: 2023-07-20
popularity: 52
isrc code: JP92Q2301559
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-01T11:49:30+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x42d961c7e2a5fb123e97d82c003b1fea3dfa106f9a178ee84444c34bd40b795b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301559
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x42d961c7e2a5fb123e97d82c003b1fea3dfa106f9a178ee84444c34bd40b795b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301559.
  date published: 2026-06-13T12:47:07Z
audio: ワールドイズマイン-初音ミク「マジカルミライ 2021」Live- (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 165.032
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.742
  additional property: Speechiness
    type: PropertyValue
    value: 0.039
  additional property: Acousticness
    type: PropertyValue
    value: 0.086
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.514
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.492
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.225
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Anonymous M
type: MusicRecording
duration: PT2M38S
duration ms: 158997
explicit: false
by artist: PinocchioP
by artist: Hatsune Miku
by artist: ARuFa
in album: Anonymous M
  type: MusicAlbum
  date published: 2023-02-18
popularity: 50
isrc code: TCJPU2375359
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T09:48:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b62d84289af08b1f39dbab17d41f405975fe472b3c872b90e854715a3ca28fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2375359
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x0b62d84289af08b1f39dbab17d41f405975fe472b3c872b90e854715a3ca28fc. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPU2375359.
  date published: 2026-06-13T12:47:07Z
audio: Anonymous M
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.979
  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: 0.742
  additional property: Energy
    type: PropertyValue
    value: 0.776
  additional property: Speechiness
    type: PropertyValue
    value: 0.205
  additional property: Acousticness
    type: PropertyValue
    value: 0.147
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.326
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.838
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.965
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Tell Your World
type: MusicRecording
duration: PT4M14S
duration ms: 254640
explicit: false
by artist: livetune
by artist: Hatsune Miku
in album: Tell Your World EP
  type: MusicAlbum
  date published: 2012-03-14
popularity: 47
isrc code: JPTF01190355
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T09:23:44+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe8afcd3de19d41a1b01d2c9946c36638b7c91347259f17b9a590ac1783e22af
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01190355
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0xfe8afcd3de19d41a1b01d2c9946c36638b7c91347259f17b9a590ac1783e22af. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPTF01190355.
  date published: 2026-06-13T12:47:07Z
audio: Tell Your World
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 150.01
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.592
  additional property: Energy
    type: PropertyValue
    value: 0.975
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.19
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.196
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.209
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.038
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
type: MusicRecording
duration: PT2M46S
duration ms: 166406
explicit: false
by artist: bo en
by artist: Kikuo
by artist: Hatsune Miku
in album: My Time OMORI ver. (Kikuo cover)
  type: MusicAlbum
  date published: 2022-11-11
popularity: 38
isrc code: JP92Q2200809
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-04T14:39:18+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x47b0538128be108f0f59eeddfba1ca800f333719f385221fd54f20b216313d40
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200809
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x47b0538128be108f0f59eeddfba1ca800f333719f385221fd54f20b216313d40. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200809.
  date published: 2026-06-13T12:47:07Z
audio: My Time OMORI ver. (Kikuo cover) (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.769
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.614
  additional property: Energy
    type: PropertyValue
    value: 0.943
  additional property: Speechiness
    type: PropertyValue
    value: 0.06
  additional property: Acousticness
    type: PropertyValue
    value: 0.009
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.054
  additional property: Liveness
    type: PropertyValue
    value: 0.363
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.219
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.203
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Daijina Hanashi wo Kokuhaku to itte shimatta uta
type: MusicRecording
duration: PT0M58S
duration ms: 58170
explicit: false
by artist: kawaii vocaloid
by artist: Hatsune Miku
in album: Daijina Hanashi wo Kokuhaku to itte shimatta uta
  type: MusicAlbum
  date published: 2023-08-02
popularity: 36
isrc code: TCJPW2393339
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T12:06:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2b8dc5099435282fa4e17a93bd14b0d49b25fbd82e1510474ebd483a95950103
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2393339
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x2b8dc5099435282fa4e17a93bd14b0d49b25fbd82e1510474ebd483a95950103. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPW2393339.
  date published: 2026-06-13T12:47:07Z
audio: Daijina Hanashi wo Kokuhaku to itte shimatta uta
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 161.61
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.709
  additional property: Energy
    type: PropertyValue
    value: 0.73
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.193
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.216
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.752
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.206
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

君色マリンスノウ (feat. 初音ミク)
type: MusicRecording
duration: PT3M58S
duration ms: 238045
explicit: false
by artist: カルロス袴田(サイゼP)
by artist: Hatsune Miku
in album: Chaotic Oceans
  type: MusicAlbum
  date published: 2023-02-01
popularity: 34
isrc code: JP92Q2301038
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T23:34:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7da71e5fecccec9bfabf102d8c660ee3227d1dd54b9898fed118c5b2f45eb79b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301038
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da71e5fecccec9bfabf102d8c660ee3227d1dd54b9898fed118c5b2f45eb79b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301038.
  date published: 2026-06-13T12:53:06Z
audio: 君色マリンスノウ (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 187.564
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.406
  additional property: Energy
    type: PropertyValue
    value: 0.976
  additional property: Speechiness
    type: PropertyValue
    value: 0.358
  additional property: Acousticness
    type: PropertyValue
    value: 0.058
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.242
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.96
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Sharing the World (feat. Hatsune Miku) [Album ver.]
type: MusicRecording
duration: PT4M6S
duration ms: 246086
explicit: false
by artist: BIGHEAD
by artist: Hatsune Miku
in album: World Is Wide feat. Hatsune Miku
  type: MusicAlbum
  date published: 2018-02-09
popularity: 30
genre: vocaloid
genre: vocaloid-metal
isrc code: JPU961600016
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T08:59:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x549dd2fe2dd1480333499d7983a927b7d33aba10d8867aa8b690d501891925e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953513
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU961600016
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x549dd2fe2dd1480333499d7983a927b7d33aba10d8867aa8b690d501891925e3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPU961600016.
  date published: 2026-06-13T12:47:07Z
audio: Sharing the World (feat. Hatsune Miku) [Album ver.]
  type: AudioObject
  additional property: Tempo (BPM)
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    value: 137.744
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.506
  additional property: Energy
    type: PropertyValue
    value: 0.903
  additional property: Speechiness
    type: PropertyValue
    value: 0.045
  additional property: Acousticness
    type: PropertyValue
    value: 0.113
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.34
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.375
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.234
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
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Deathgore
type: MusicRecording
duration: PT2M34S
duration ms: 154285
explicit: false
by artist: Original God
by artist: Hatsune Miku
in album: The Beast that Shouted Love at the Heart of the World
  type: MusicAlbum
  date published: 2023-01-31
popularity: 27
genre: dark-trap
genre: scream-rap
isrc code: QM6XS2202735
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T16:29:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x567e4675b979d5c8dd0823bb3c3011d182434dd1dd01fbab2361719fd83678cb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6XS2202735
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x567e4675b979d5c8dd0823bb3c3011d182434dd1dd01fbab2361719fd83678cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6XS2202735.
  date published: 2026-06-13T13:32:09Z
audio: Deathgore
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 145.152
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.389
  additional property: Energy
    type: PropertyValue
    value: 0.896
  additional property: Speechiness
    type: PropertyValue
    value: 0.056
  additional property: Acousticness
    type: PropertyValue
    value: 0.004
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.398
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.595
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Minor

それでもいいんだよ (feat. 初音ミク)
type: MusicRecording
duration: PT3M10S
duration ms: 190909
explicit: false
by artist: Ponchi♪
by artist: Hatsune Miku
in album: それでもいいんだよ
  type: MusicAlbum
  date published: 2022-07-25
popularity: 25
genre: vocaloid
isrc code: JP92Q2200393
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T19:21:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2d227af1e819ab6a8d1f4e5ce6ddc6f48f17e804707eecd4f0ad876dfeed7cd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200393
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0x2d227af1e819ab6a8d1f4e5ce6ddc6f48f17e804707eecd4f0ad876dfeed7cd9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200393.
  date published: 2026-06-13T13:32:09Z
audio: それでもいいんだよ (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.793
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.669
  additional property: Energy
    type: PropertyValue
    value: 0.94
  additional property: Speechiness
    type: PropertyValue
    value: 0.052
  additional property: Acousticness
    type: PropertyValue
    value: 0.043
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.25
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.593
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.948
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major

おぎゃりないざー (feat. 初音ミク)
type: MusicRecording
duration: PT2M7S
duration ms: 127000
explicit: false
by artist: Ponchi♪
by artist: Hatsune Miku
in album: BABY'S HIGH
  type: MusicAlbum
  date published: 2024-10-30
popularity: 25
genre: vocaloid
isrc code: JP92Q2302111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T16:39:01+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa4ba92362cf592d9ef5de69a651bd6c4bb704cb4f7174c2e4c33bf97a746ba01
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302111
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xa4ba92362cf592d9ef5de69a651bd6c4bb704cb4f7174c2e4c33bf97a746ba01. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302111.
  date published: 2026-06-13T13:32:09Z
audio: おぎゃりないざー (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 136.058
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.336
  additional property: Energy
    type: PropertyValue
    value: 0.993
  additional property: Speechiness
    type: PropertyValue
    value: 0.175
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.32
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.363
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.881
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

厭世という名の病 feat. 初音ミク
type: MusicRecording
duration: PT3M50S
duration ms: 230243
explicit: false
by artist: 蟲の知らせ
by artist: Hatsune Miku
in album: 厭世という名の病 feat. 初音ミク
  type: MusicAlbum
  date published: 2023-10-04
popularity: 23
isrc code: JPW462369194
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T19:21:16+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d4ac3c57c1926bab6468e8c8434e766d91d54fda729d7e025636b649241801c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953515
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462369194
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4ac3c57c1926bab6468e8c8434e766d91d54fda729d7e025636b649241801c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPW462369194.
  date published: 2026-06-13T12:53:06Z
audio: 厭世という名の病 feat. 初音ミク
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.671
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.709
  additional property: Energy
    type: PropertyValue
    value: 0.649
  additional property: Speechiness
    type: PropertyValue
    value: 0.032
  additional property: Acousticness
    type: PropertyValue
    value: 0.219
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.295
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.912
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.65
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ハッピーチートデー (feat. 初音ミク)
type: MusicRecording
duration: PT2M37S
duration ms: 157430
explicit: false
by artist: rerulili
by artist: Hatsune Miku
in album: Yukifull Kitchen
  type: MusicAlbum
  date published: 2024-01-24
popularity: 21
isrc code: JP92Q2400035
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T02:34:08+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1e96944992714c09107c6139c4de127040a5bd0d867a3c1a960f299d66fde32
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400035
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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 0xb1e96944992714c09107c6139c4de127040a5bd0d867a3c1a960f299d66fde32. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2400035.
  date published: 2026-06-13T13:32:09Z
audio: ハッピーチートデー (feat. 初音ミク)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 134.32
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.649
  additional property: Energy
    type: PropertyValue
    value: 0.791
  additional property: Speechiness
    type: PropertyValue
    value: 0.047
  additional property: Acousticness
    type: PropertyValue
    value: 0.047
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.086
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.596
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.151
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major