大島ミチル
type: MusicGroup
popularity: 9
followers: 178
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8565d2f92ba0ea148e93e7f17c5af8c6bbe720cc9cf7004238c914632bdc91f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d285b06c-6b83-4bb0-b05a-98847a5d7dd0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d285b06c-6b83-4bb0-b05a-98847a5d7dd0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d285b06c-6b83-4bb0-b05a-98847a5d7dd0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8565d2f92ba0ea148e93e7f17c5af8c6bbe720cc9cf7004238c914632bdc91f0","name":"大島ミチル","registered_at":"2026-06-21T01:53:34Z","symbol":"NIM1782953","token_address":"0xa1b3c23323afb99c4d32e4f0bc47165845655f59","type":"artist","uuid":"d285b06c-6b83-4bb0-b05a-98847a5d7dd0"}
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 0x8565d2f92ba0ea148e93e7f17c5af8c6bbe720cc9cf7004238c914632bdc91f0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d285b06c-6b83-4bb0-b05a-98847a5d7dd0.json and https://artists.proofprofile.net/proofs/artist/d285b06c-6b83-4bb0-b05a-98847a5d7dd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x8565d2f92ba0ea148e93e7f17c5af8c6bbe720cc9cf7004238c914632bdc91f0","name":"大島ミチル","registered_at":"2026-06-21T01:53:34Z","symbol":"NIM1782953","token_address":"0xa1b3c23323afb99c4d32e4f0bc47165845655f59","type":"artist","uuid":"d285b06c-6b83-4bb0-b05a-98847a5d7dd0"}
album: LEGEND OF CASSHAN OVAキャシャーン 音楽集
  type: MusicAlbum
  date published: 1989
album: LEGEND OF CASSHAN OVAキャシャーン 音楽集2
  type: MusicAlbum
  date published: 1989
album: 風の大陸 オリジナル・サウンドトラックVol.I
  type: MusicAlbum
  date published: 1992-07-18
album: 映画音楽ベスト
  type: MusicAlbum
  date published: 2005-01-19
album: 赤髪の白雪姫 Original Soundtrack 音楽：大島ミチル
  type: MusicAlbum
  date published: 2016-03-23
  track: 和解・２人の始まり
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120026
    explicit: false
    by artist: 大島ミチル
    in album: 赤髪の白雪姫 Original Soundtrack 音楽：大島ミチル
      type: MusicAlbum
      date published: 2016-03-23
    isrc code: JPQ461600021
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:53:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0e3631e76e498e89f38d791c8458d62b5c5748938fd933d988c08c38bb23d002
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPQ461600021
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0x0e3631e76e498e89f38d791c8458d62b5c5748938fd933d988c08c38bb23d002. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/JPQ461600021.
      date published: 2026-07-22T07:19:23Z
    audio: 和解・２人の始まり
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.548
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.371
      additional property: Energy
        type: PropertyValue
        value: 0.226
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.921
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.208
      additional property: Liveness
        type: PropertyValue
        value: 0.143
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.099
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.279
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 劇場版はいからさんが通る 前編 ～紅緒、花の17歳～ オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2017-11-08
album: 劇場版 はいからさんが通る 後編 ～花の東京大ロマン～ オリジナル・サウンドトラック
  type: MusicAlbum
  date published: 2018-10-17