ピューパ!!
type: MusicGroup
genre: japanese indie
popularity: 10
followers: 2750
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0549eaf6a4c8a7e397f17546881aace0f49f9454f6846da07f652422a8c92d15
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef2eba58-6068-4514-a520-ab3192986248.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef2eba58-6068-4514-a520-ab3192986248.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ef2eba58-6068-4514-a520-ab3192986248
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0549eaf6a4c8a7e397f17546881aace0f49f9454f6846da07f652422a8c92d15","name":"ピューパ!!","registered_at":"2026-06-21T12:18:44Z","symbol":"NIM1921785","token_address":"0x702d4ea7bf8097c4d5c6221a6ae0e99f3d2ea54e","type":"artist","uuid":"ef2eba58-6068-4514-a520-ab3192986248"}
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 0x0549eaf6a4c8a7e397f17546881aace0f49f9454f6846da07f652422a8c92d15. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef2eba58-6068-4514-a520-ab3192986248.json and https://artists.proofprofile.net/proofs/artist/ef2eba58-6068-4514-a520-ab3192986248.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x0549eaf6a4c8a7e397f17546881aace0f49f9454f6846da07f652422a8c92d15","name":"ピューパ!!","registered_at":"2026-06-21T12:18:44Z","symbol":"NIM1921785","token_address":"0x702d4ea7bf8097c4d5c6221a6ae0e99f3d2ea54e","type":"artist","uuid":"ef2eba58-6068-4514-a520-ab3192986248"}
album: はじめてのピューパ!!
  type: MusicAlbum
  date published: 2019-09-07
album: Haconiwa no kizuna
  type: MusicAlbum
  date published: 2019-10-10
album: It's too late
  type: MusicAlbum
  date published: 2019-11-26
album: えそらことば
  type: MusicAlbum
  date published: 2020-01-25
  track: border
    type: MusicRecording
    duration: PT5M18S
    duration ms: 318750
    explicit: false
    by artist: ピューパ!!
    in album: えそらことば
      type: MusicAlbum
      date published: 2020-01-25
    genre: japanese indie
    isrc code: JPB602051735
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T17:46:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3446c9edd058281fc044f80e5e5cd52a29f345e3e0d9487c0ca94210b0074003
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959047
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959047
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPB602051735
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T20:47:25Z
    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 0x3446c9edd058281fc044f80e5e5cd52a29f345e3e0d9487c0ca94210b0074003. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:47:25Z), 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/JPB602051735.
      date published: 2026-07-21T20:47:25Z
    audio: border
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.03
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.682
      additional property: Energy
        type: PropertyValue
        value: 0.919
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.189
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.524
      additional property: Loudness (dB)
        type: PropertyValue
        value: -1.786
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Apricot!!
  type: MusicAlbum
  date published: 2020-04-13
album: Vanilla
  type: MusicAlbum
  date published: 2020-05-04
album: Gardenia
  type: MusicAlbum
  date published: 2020-06-08
album: Ajisai
  type: MusicAlbum
  date published: 2020-08-01
album: Lotus
  type: MusicAlbum
  date published: 2020-09-14
album: ハナコトバ
  type: MusicAlbum
  date published: 2020-10-22
album: hanacotoba
  type: MusicAlbum
  date published: 2021-02-14
album: TEAM PUPA
  type: MusicAlbum
  date published: 2021-05-09
album: Nichijo
  type: MusicAlbum
  date published: 2021-08-11
album: Cosmos
  type: MusicAlbum
  date published: 2021-09-25
album: PASS-WORD (B Route)
  type: MusicAlbum
  date published: 2022-06-29
album: PASS-WORD
  type: MusicAlbum
  date published: 2022-06-29
album: 4pril
  type: MusicAlbum
  date published: 2023-04-26
album: Jun6
  type: MusicAlbum
  date published: 2023-06-30
album: コトノグラフ (AM)
  type: MusicAlbum
  date published: 2023-11-22
album: Fusion
  type: MusicAlbum
  date published: 2024-08-01
album: コトノグラフ (PM)
  type: MusicAlbum
  date published: 2024-08-28
album: Circle line
  type: MusicAlbum
  date published: 2025-04-23
album: Echoflare Sequence
  type: MusicAlbum
  date published: 2025-10-01