エマ・ヴェルデ (CV.指出毬亜)
type: MusicGroup
popularity: 27
followers: 7248
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd8295c4b1f246c0bac04f2eed689c7aba1e452e9c760d3f7699396190b4267d7
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/beacb3f9-fcc2-499a-80cd-13f9bf050c7a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/beacb3f9-fcc2-499a-80cd-13f9bf050c7a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/beacb3f9-fcc2-499a-80cd-13f9bf050c7a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd8295c4b1f246c0bac04f2eed689c7aba1e452e9c760d3f7699396190b4267d7","name":"エマ・ヴェルデ (CV.指出毬亜)","registered_at":"2026-06-12T08:41:15Z","symbol":"NIM0245227","token_address":"0x36d674a2c7f4ba4c58642a70a1c6923a56814348","type":"artist","uuid":"beacb3f9-fcc2-499a-80cd-13f9bf050c7a"}
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 0xd8295c4b1f246c0bac04f2eed689c7aba1e452e9c760d3f7699396190b4267d7. 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/beacb3f9-fcc2-499a-80cd-13f9bf050c7a.json and https://artists.proofprofile.net/proofs/artist/beacb3f9-fcc2-499a-80cd-13f9bf050c7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xd8295c4b1f246c0bac04f2eed689c7aba1e452e9c760d3f7699396190b4267d7","name":"エマ・ヴェルデ (CV.指出毬亜)","registered_at":"2026-06-12T08:41:15Z","symbol":"NIM0245227","token_address":"0x36d674a2c7f4ba4c58642a70a1c6923a56814348","type":"artist","uuid":"beacb3f9-fcc2-499a-80cd-13f9bf050c7a"}
album: Starry Night Serenade
  type: MusicAlbum
  date published: 2025-02-12
  track: Starry Night Serenade - Off Vocal
    type: MusicRecording
    duration: PT4M17S
    duration ms: 257426
    explicit: false
    by artist: エマ・ヴェルデ (CV.指出毬亜)
    in album: Starry Night Serenade
      type: MusicAlbum
      date published: 2025-02-12
    isrc code: JPI102403708
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T13:07:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x40dabbf71bbde9814e40bc5661fbac4043f683aaae456cf7941294af3c3d80e1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102403708
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dabbf71bbde9814e40bc5661fbac4043f683aaae456cf7941294af3c3d80e1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPI102403708.
      date published: 2026-07-05T18:48:28Z
    audio: Starry Night Serenade - Off Vocal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.984
      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: 0.451
      additional property: Energy
        type: PropertyValue
        value: 0.777
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.832
      additional property: Liveness
        type: PropertyValue
        value: 0.352
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.587
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.342
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major