敷島魅零（CV：井口裕香）
type: MusicGroup
popularity: 15
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbea95b161c5404011edc4e206aa6cee4e453ead704143e9ed1ac85032a4dc71a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953674
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953674
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dd24c3a-c746-4469-bccc-bdd513fe3824.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5dd24c3a-c746-4469-bccc-bdd513fe3824.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5dd24c3a-c746-4469-bccc-bdd513fe3824
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:07:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbea95b161c5404011edc4e206aa6cee4e453ead704143e9ed1ac85032a4dc71a","name":"敷島魅零（CV：井口裕香）","registered_at":"2026-06-14T14:21:51Z","symbol":"NIM0480081","token_address":"0xc9a258a7936e5a80c43a3a95457c0b5852a7b6df","type":"artist","uuid":"5dd24c3a-c746-4469-bccc-bdd513fe3824"}
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 0xbea95b161c5404011edc4e206aa6cee4e453ead704143e9ed1ac85032a4dc71a. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5dd24c3a-c746-4469-bccc-bdd513fe3824.json and https://artists.proofprofile.net/proofs/artist/5dd24c3a-c746-4469-bccc-bdd513fe3824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:07:16Z
  text: {"copyright_id":"0xbea95b161c5404011edc4e206aa6cee4e453ead704143e9ed1ac85032a4dc71a","name":"敷島魅零（CV：井口裕香）","registered_at":"2026-06-14T14:21:51Z","symbol":"NIM0480081","token_address":"0xc9a258a7936e5a80c43a3a95457c0b5852a7b6df","type":"artist","uuid":"5dd24c3a-c746-4469-bccc-bdd513fe3824"}
album: TVアニメ「VALKYRIE DRIVE -MERMAID-」エンディングテーマ「スーパーウルトラハイパーミラクルロマンチック」
  type: MusicAlbum
  date published: 2015-10-28
album: ENDING THEME FROM TV SERIES ”VALKYRIE DRIVE -MERMAID-” SUPER ULTRA HYPER MIRACLE ROMANTIC
  type: MusicAlbum
  date published: 2015-10-28
  track: SUPER ULTRA HYPER MIRACLE ROMANTIC
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219666
    explicit: false
    by artist: 敷島魅零（CV：井口裕香）
    in album: ENDING THEME FROM TV SERIES ”VALKYRIE DRIVE -MERMAID-” SUPER ULTRA HYPER MIRACLE ROMANTIC
      type: MusicAlbum
      date published: 2015-10-28
    isrc code: JPD731501204
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T21:40:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf1a19e9b5488ef612686e0e09df96bdb30d2cf5004b3d506409c5eefc7892bf8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957759
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957759
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPD731501204
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T21:46:51Z
    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 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 0xf1a19e9b5488ef612686e0e09df96bdb30d2cf5004b3d506409c5eefc7892bf8. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPD731501204.
      date published: 2026-07-12T21:46:51Z
    audio: SUPER ULTRA HYPER MIRACLE ROMANTIC
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.108
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.48
      additional property: Energy
        type: PropertyValue
        value: 0.876
      additional property: Speechiness
        type: PropertyValue
        value: 0.073
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.065
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.454
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.188
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor