ピエール (CV.堀江 瞬)
type: MusicGroup
popularity: 15
followers: 128
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe8029d628a514d6013bfdc5685d30502bf3e85c27fe1c16f9c09c43069e3c5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953657
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953657
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f5415e9-d7c3-418e-b3fa-3adf78bd1a31.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4f5415e9-d7c3-418e-b3fa-3adf78bd1a31.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4f5415e9-d7c3-418e-b3fa-3adf78bd1a31
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T16:43:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe8029d628a514d6013bfdc5685d30502bf3e85c27fe1c16f9c09c43069e3c5a","name":"ピエール (CV.堀江 瞬)","registered_at":"2026-06-14T12:50:24Z","symbol":"NIM0458247","token_address":"0xb5703669039ed915575d6ba448a7e2eb8e21428c","type":"artist","uuid":"4f5415e9-d7c3-418e-b3fa-3adf78bd1a31"}
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 0xfe8029d628a514d6013bfdc5685d30502bf3e85c27fe1c16f9c09c43069e3c5a. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f5415e9-d7c3-418e-b3fa-3adf78bd1a31.json and https://artists.proofprofile.net/proofs/artist/4f5415e9-d7c3-418e-b3fa-3adf78bd1a31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T16:43:25Z
  text: {"copyright_id":"0xfe8029d628a514d6013bfdc5685d30502bf3e85c27fe1c16f9c09c43069e3c5a","name":"ピエール (CV.堀江 瞬)","registered_at":"2026-06-14T12:50:24Z","symbol":"NIM0458247","token_address":"0xb5703669039ed915575d6ba448a7e2eb8e21428c","type":"artist","uuid":"4f5415e9-d7c3-418e-b3fa-3adf78bd1a31"}
album: THE IDOLM@STER SideM WORLD TRE@SURE 07
  type: MusicAlbum
  date published: 2019
album: THE IDOLM@STER SideM WORLD TRE@SURE 07
  type: MusicAlbum
  date published: 2019-04-03
  track: Purely&Kindly
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250533
    explicit: false
    by artist: ピエール (CV.堀江 瞬)
    in album: THE IDOLM@STER SideM WORLD TRE@SURE 07
      type: MusicAlbum
      date published: 2019-04-03
    isrc code: JPI101900535
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:30:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe6e9a7975aa4b966cd62ef650c152ee91d92c4b92a40db088784b7ff24296246
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958341
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958341
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI101900535
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:31:48Z
    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 0xe6e9a7975aa4b966cd62ef650c152ee91d92c4b92a40db088784b7ff24296246. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:31:48Z), 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/JPI101900535.
      date published: 2026-07-17T02:31:48Z
    audio: Purely&Kindly
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.014
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.466
      additional property: Energy
        type: PropertyValue
        value: 0.73
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.063
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.562
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.348
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major