Piko
type: MusicGroup
genre: anime
genre: vocaloid
popularity: 28
followers: 16702
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ba691811cf7f7a618cf5b22525f6f41f973b776ee100ce98a35d0a9c9bf572b
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/c551a63f-d5fb-4fb6-a958-9386c99cfb8d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c551a63f-d5fb-4fb6-a958-9386c99cfb8d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c551a63f-d5fb-4fb6-a958-9386c99cfb8d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba691811cf7f7a618cf5b22525f6f41f973b776ee100ce98a35d0a9c9bf572b. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c551a63f-d5fb-4fb6-a958-9386c99cfb8d.json and https://artists.proofprofile.net/proofs/artist/c551a63f-d5fb-4fb6-a958-9386c99cfb8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
album: Pikolection BEST+4
  type: MusicAlbum
  date published: 2009
  track: 言ノ葉
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233133
    explicit: false
    by artist: Piko
    in album: Pikolection BEST+4
      type: MusicAlbum
      date published: 2009
    genre: anime
    genre: vocaloid
    isrc code: JPKS01300821
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T01:32:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x473ee6639fd254e021f2360c2a5d53ec8846f5e32f364d4583c8173e27962742
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959089
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959089
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01300821
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T04:35:44Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473ee6639fd254e021f2360c2a5d53ec8846f5e32f364d4583c8173e27962742. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:35:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01300821.
      date published: 2026-07-22T04:35:44Z
    audio: 言ノ葉
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.984
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.563
      additional property: Energy
        type: PropertyValue
        value: 0.867
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.003
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.39
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.105
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Make My Day!
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223853
    explicit: false
    by artist: Piko
    in album: Pikolection BEST+4
      type: MusicAlbum
      date published: 2009
    genre: anime
    genre: vocaloid
    isrc code: JPKS01201461
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x26e7f48f3d89313ce7a75cb971ff4e4f9c2e57a50ab867f5423e54111a3d6999
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958971
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958971
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01201461
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T05:04:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e7f48f3d89313ce7a75cb971ff4e4f9c2e57a50ab867f5423e54111a3d6999. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01201461.
      date published: 2026-07-21T05:04:56Z
    audio: Make My Day!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 181.925
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.517
      additional property: Energy
        type: PropertyValue
        value: 0.732
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.028
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.081
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.714
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: 勿忘草
album: 1Piko
album: Story
album: 勿忘草
album: 桜音
album: 1PIKO
album: ユメハナ
album: 咲色リフレイン
album: 2PIKO
album: Make My day!
album: ヒトコエ-42701340-
album: 言ノ葉
album: 傘
album: ジャガーノート
album: ピコレクション“BEST+4”
album: 村人A
album: Murabito A
album: Re:Act
album: HERO
album: Study
album: ポルターガイスト
album: 海月の幽霊
album: 柩 -HITSUGI-
album: Like 'Roman Holiday'
album: TAKE ONE
album: 人間賛歌
album: 木漏れ日に誘われて
album: Alone in sunlight filtering through the leaves
album: さくら
album: おだやか
album: 三色
album: るんるん
album: ぽっぴん
album: 満月
album: かわせみ
album: 虹追い人の夢
album: Dream of Rainbow Chasers
album: Love is War (cover)
album: 恋は戦争 (cover)
album: Demetra Sound
album: 夏バテ半ライス
album: Magic to be a friend with a bike
album: セカンド シーン
album: Second Scene
album: 火花
album: HIKARI
track: Mind Craft
track: Applaud our life

Mind Craft
type: MusicRecording
duration: PT5M1S
duration ms: 301374
explicit: false
by artist: CHAN-GERO SONIC
by artist: Gero
by artist: ASK
by artist: Asamaru
by artist: ARAKI
by artist: +α/Alfakyun.
by artist: __ (Underbar)
by artist: clear
by artist: Glutamine
by artist: Kogeinu
by artist: Gom
by artist: that
by artist: Dasoku
by artist: Touyu
by artist: To-lie
by artist: Nomiya Ayumi
by artist: NERO
by artist: halyosy
by artist: Piko
by artist: Pokota
by artist: michan
by artist: Meychan
by artist: Yamadan
by artist: Yuge
by artist: YURiCa/Hanatan
in album: Mind Craft
  type: MusicAlbum
  date published: 2022-11-27
isrc code: TCJPT2249997
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T22:19:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf199d317a19198562aa34648387c0815ce2ed9835ab10967ea370e1d23487c73
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/TCJPT2249997
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf199d317a19198562aa34648387c0815ce2ed9835ab10967ea370e1d23487c73. 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/TCJPT2249997.
  date published: 2026-07-02T03:30:09Z
audio: Mind Craft
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 139.077
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.589
  additional property: Energy
    type: PropertyValue
    value: 0.947
  additional property: Speechiness
    type: PropertyValue
    value: 0.075
  additional property: Acousticness
    type: PropertyValue
    value: 0.105
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.549
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.721
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.366
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Applaud our life
type: MusicRecording
duration: PT4M54S
duration ms: 294179
explicit: false
by artist: CHAN-GERO SONIC
by artist: Gero
by artist: ARAKI
by artist: +α/Alfakyun.
by artist: un:c
by artist: __ (Underbar)
by artist: clear
by artist: NERO
by artist: Glutamine
by artist: Kouhey
by artist: ASK
by artist: Kogeinu
by artist: that
by artist: Pokota
by artist: Yuge
by artist: Chogakusei
by artist: ChouCho
by artist: NANO
by artist: VALSHE
by artist: Piko
by artist: Asamaru
by artist: amu
by artist: Dasoku
by artist: michan
by artist: Maria
by artist: YURiCa/Hanatan
by artist: Rapbit
by artist: luz
in album: Applaud our life
  type: MusicAlbum
  date published: 2022-11-27
isrc code: TCJPT2248672
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T01:14:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2248672
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a4a886d9653310f9149a1ecfacd67c237775dcee7b7f6d66625ad7c84678f9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPT2248672.
  date published: 2026-07-02T05:09:12Z
audio: Applaud our life
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 141.085
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.574
  additional property: Energy
    type: PropertyValue
    value: 0.827
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.007
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.356
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.626
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.959
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Loudness (dB)
type: PropertyValue
value: -2.676

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

勿忘草
type: MusicRecording
duration: PT4M6S
duration ms: 246333
explicit: false
by artist: Piko
in album: Pikolection BEST+4
  type: MusicAlbum
  date published: 2009
genre: anime
genre: vocaloid
isrc code: JPKS01002681
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T17:03:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1e9bf08e22694de58ea98f26f8bbfad66a86281a11e21a53bee09b226529f2f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958590
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958590
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01002681
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T17:28:56Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e9bf08e22694de58ea98f26f8bbfad66a86281a11e21a53bee09b226529f2f. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01002681.
  date published: 2026-07-18T17:28:56Z
audio: 勿忘草
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 169.868
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.508
  additional property: Energy
    type: PropertyValue
    value: 0.925
  additional property: Speechiness
    type: PropertyValue
    value: 0.148
  additional property: Acousticness
    type: PropertyValue
    value: 0.195
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.182
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.602
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.397
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

1Piko
type: MusicAlbum
date published: 2010

Story
type: MusicAlbum
date published: 2010-10-13

勿忘草
type: MusicAlbum
date published: 2010-12-08
track: 白い雪のプリンセスは
  type: MusicRecording
  duration: PT4M27S
  duration ms: 267360
  explicit: false
  by artist: Piko
  in album: 勿忘草
    type: MusicAlbum
    date published: 2010-12-08
  genre: anime
  genre: vocaloid
  isrc code: JPKS01002741
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T20:24:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c598176421e082a55e51b6129c214376c16c2dc1b84656ef2cb48ee8272056e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959058
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959058
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01002741
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T23:25:50Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c598176421e082a55e51b6129c214376c16c2dc1b84656ef2cb48ee8272056e. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:25:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01002741.
    date published: 2026-07-21T23:25:50Z
  audio: 白い雪のプリンセスは
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.058
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.509
    additional property: Energy
      type: PropertyValue
      value: 0.917
    additional property: Speechiness
      type: PropertyValue
      value: 0.09
    additional property: Acousticness
      type: PropertyValue
      value: 0.039
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.646
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.801
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Minor

勿忘草
type: MusicAlbum
date published: 2010-12-08

桜音
type: MusicAlbum
date published: 2011-03-09

桜音
type: MusicAlbum
date published: 2011-03-09

1PIKO
type: MusicAlbum
date published: 2011-05-11

1PIKO
type: MusicAlbum
date published: 2011-05-11
track: ピコピコ☆レジェンドオブザナイト
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242533
  explicit: false
  by artist: Piko
  in album: 1PIKO
    type: MusicAlbum
    date published: 2011-05-11
  genre: anime
  genre: vocaloid
  isrc code: JPKS01100845
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-22T04:03:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9c839bc2adeb7904ab653c47b47529f394f8b899a749c205fd5485e88ff537fd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959100
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959100
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01100845
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-22T07:04:51Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c839bc2adeb7904ab653c47b47529f394f8b899a749c205fd5485e88ff537fd. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:04:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01100845.
    date published: 2026-07-22T07:04:51Z
  audio: ピコピコ☆レジェンドオブザナイト
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 165.09
    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: 0.544
    additional property: Energy
      type: PropertyValue
      value: 0.939
    additional property: Speechiness
      type: PropertyValue
      value: 0.039
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.314
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.776
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.305
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: 二息歩行
  type: MusicRecording
  duration: PT3M3S
  duration ms: 183840
  explicit: false
  by artist: Piko
  in album: 1PIKO
    type: MusicAlbum
    date published: 2011-05-11
  genre: anime
  genre: vocaloid
  isrc code: JPKS01100846
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T09:02:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x252f55cf7b4b05557b5226b4db6659ff5622bc7bbdceb03e0a2b829584a10eab
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01100846
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252f55cf7b4b05557b5226b4db6659ff5622bc7bbdceb03e0a2b829584a10eab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01100846.
    date published: 2026-07-05T10:01:46Z
  audio: 二息歩行
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 179.908
    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: 0.468
    additional property: Energy
      type: PropertyValue
      value: 0.912
    additional property: Speechiness
      type: PropertyValue
      value: 0.102
    additional property: Acousticness
      type: PropertyValue
      value: 0.015
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.343
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.644
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.416
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Major

ユメハナ
type: MusicAlbum
date published: 2011-10-05

咲色リフレイン
type: MusicAlbum
date published: 2012-04-25

2PIKO
type: MusicAlbum
date published: 2012-05-30

2PIKO
type: MusicAlbum
date published: 2012-05-30

Make My day!
type: MusicAlbum
date published: 2012-08-15

Make My day!
type: MusicAlbum
date published: 2012-08-15
track: Make My Day!
  type: MusicRecording
  duration: PT3M45S
  duration ms: 225066
  explicit: false
  by artist: Piko
  in album: Make My day!
    type: MusicAlbum
    date published: 2012-08-15
  genre: anime
  genre: vocaloid
  isrc code: JPKS01201461
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T19:00:27+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x26e7f48f3d89313ce7a75cb971ff4e4f9c2e57a50ab867f5423e54111a3d6999
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01201461
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e7f48f3d89313ce7a75cb971ff4e4f9c2e57a50ab867f5423e54111a3d6999. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01201461.
    date published: 2026-07-18T19:27:02Z
  audio: Make My Day!
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.955
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.622
    additional property: Energy
      type: PropertyValue
      value: 0.725
    additional property: Speechiness
      type: PropertyValue
      value: 0.035
    additional property: Acousticness
      type: PropertyValue
      value: 0.035
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.076
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.714
    additional property: Loudness (dB)
      type: PropertyValue
      value: -2.681
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

2PIKO
type: MusicAlbum
date published: 2012-11-07

ヒトコエ-42701340-
type: MusicAlbum
date published: 2013-02-20

ヒトコエ-42701340-
type: MusicAlbum
date published: 2013-02-20
track: モザイクロール
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184400
  explicit: false
  by artist: Piko
  in album: ヒトコエ-42701340-
    type: MusicAlbum
    date published: 2013-02-20
  genre: anime
  genre: vocaloid
  isrc code: JPKS01300203
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T01:04:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x12517e85b8802b684bb6442b575ac3f6508eaa0940f57630c2e956d1b4e1347f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958350
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958350
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01300203
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T04:03:43Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12517e85b8802b684bb6442b575ac3f6508eaa0940f57630c2e956d1b4e1347f. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:03:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKS01300203.
    date published: 2026-07-17T04:03:43Z
  audio: モザイクロール
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.057
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.525
    additional property: Energy
      type: PropertyValue
      value: 0.988
    additional property: Speechiness
      type: PropertyValue
      value: 0.146
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.402
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.509
    additional property: Loudness (dB)
      type: PropertyValue
      value: -1.939
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major

言ノ葉
type: MusicAlbum
date published: 2013-05-22

言ノ葉
type: MusicAlbum
date published: 2013-05-22

言ノ葉
type: MusicAlbum
date published: 2013-06-05

言ノ葉
type: MusicAlbum
date published: 2013-06-05

傘
type: MusicAlbum
date published: 2013-07-14

傘
type: MusicAlbum
date published: 2013-07-14

ジャガーノート
type: MusicAlbum
date published: 2013-07-15

ピコレクション“BEST+4”
type: MusicAlbum
date published: 2013-07-24

ピコレクション“BEST+4”
type: MusicAlbum
date published: 2013-07-24

村人A
type: MusicAlbum
date published: 2015-09-30

Murabito A
type: MusicAlbum
date published: 2015-10-02

Re:Act
type: MusicAlbum
date published: 2017-12-17

Re:Act
type: MusicAlbum
date published: 2017-12-17

HERO
type: MusicAlbum
date published: 2018-08-31

HERO
type: MusicAlbum
date published: 2018-08-31

Study
type: MusicAlbum
date published: 2020-01-12

Study
type: MusicAlbum
date published: 2020-01-12

ポルターガイスト
type: MusicAlbum
date published: 2021-12-18

海月の幽霊
type: MusicAlbum
date published: 2022-09-28

柩 -HITSUGI-
type: MusicAlbum
date published: 2023-03-08

Like 'Roman Holiday'
type: MusicAlbum
date published: 2023-05-20

TAKE ONE
type: MusicAlbum
date published: 2023-05-31

TAKE ONE
type: MusicAlbum
date published: 2023-05-31

人間賛歌
type: MusicAlbum
date published: 2023-08-16

木漏れ日に誘われて
type: MusicAlbum
date published: 2023-12-16

Alone in sunlight filtering through the leaves
type: MusicAlbum
date published: 2023-12-16

さくら
type: MusicAlbum
date published: 2024-03-07

おだやか
type: MusicAlbum
date published: 2024-03-13

三色
type: MusicAlbum
date published: 2024-03-14

るんるん
type: MusicAlbum
date published: 2024-03-14

ぽっぴん
type: MusicAlbum
date published: 2024-04-03

満月
type: MusicAlbum
date published: 2024-04-03

かわせみ
type: MusicAlbum
date published: 2024-04-03

虹追い人の夢
type: MusicAlbum
date published: 2024-05-04

Dream of Rainbow Chasers
type: MusicAlbum
date published: 2024-05-04

Love is War (cover)
type: MusicAlbum
date published: 2024-07-24

恋は戦争 (cover)
type: MusicAlbum
date published: 2024-07-24

Demetra Sound
type: MusicAlbum
date published: 2024-07-29

夏バテ半ライス
type: MusicAlbum
date published: 2024-09-30

Magic to be a friend with a bike
type: MusicAlbum
date published: 2025-03-23

セカンド シーン
type: MusicAlbum
date published: 2025-05-28

Second Scene
type: MusicAlbum
date published: 2025-05-28

火花
type: MusicAlbum
date published: 2025-08-15
track: 火花
  type: MusicRecording
  duration: PT3M44S
  duration ms: 224503
  explicit: false
  by artist: Piko
  in album: 火花
    type: MusicAlbum
    date published: 2025-08-15
  genre: anime
  genre: vocaloid
  isrc code: JP92N2536450
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T13:34:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x63da51e6fcd0d0ff414838a6cc6405b7ca9e4538aa6cba9bc6a1e2a1b0960c66
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2536450
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63da51e6fcd0d0ff414838a6cc6405b7ca9e4538aa6cba9bc6a1e2a1b0960c66. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2536450.
    date published: 2026-07-05T01:12:41Z
  audio: 火花
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 150.955
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.591
    additional property: Energy
      type: PropertyValue
      value: 0.902
    additional property: Speechiness
      type: PropertyValue
      value: 0.052
    additional property: Acousticness
      type: PropertyValue
      value: 0.03
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.822
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.542
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: あなたが生きる意味になりたい
  type: MusicRecording
  duration: PT5M58S
  duration ms: 358275
  explicit: false
  by artist: Piko
  in album: 火花
    type: MusicAlbum
    date published: 2025-08-15
  genre: anime
  genre: vocaloid
  isrc code: JP92N2536451
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T08:56:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0126fb5f4f069e4c03b3592f941ee5322ffd855cb077d73f427b12b84f6f4664
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958853
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958853
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2536451
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T11:58:29Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0126fb5f4f069e4c03b3592f941ee5322ffd855cb077d73f427b12b84f6f4664. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:58:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92N2536451.
    date published: 2026-07-20T11:58:29Z
  audio: あなたが生きる意味になりたい
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 174.079
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.452
    additional property: Energy
      type: PropertyValue
      value: 0.72
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.33
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.301
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.37
    additional property: Loudness (dB)
      type: PropertyValue
      value: -3.344
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Minor

HIKARI
type: MusicAlbum
date published: 2025-09-08

HIKARI
type: MusicAlbum
date published: 2025-09-08
track: HIKARI
  type: MusicRecording
  duration: PT3M47S
  duration ms: 227956
  explicit: false
  by artist: Piko
  in album: HIKARI
    type: MusicAlbum
    date published: 2025-09-08
  genre: anime
  genre: vocaloid
  isrc code: QT66J2522064
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T18:47:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x72eca06d482856e3ef8076906a055ce46e7e7057876fafb6c72fbd60596b256b
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2522064
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72eca06d482856e3ef8076906a055ce46e7e7057876fafb6c72fbd60596b256b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT66J2522064.
    date published: 2026-07-18T19:27:02Z
  audio: HIKARI
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 104.958
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.672
    additional property: Energy
      type: PropertyValue
      value: 0.179
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.904
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.179
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.248
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.759
    additional property: Key Name
      type: PropertyValue
      value: Bb
    additional property: Mode Name
      type: PropertyValue
      value: Major