華桜会
type: MusicGroup
popularity: 12
followers: 1145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c4e36183be434582788ff8f2b88f68c2ff2a5687fd0b59279ef191adac97eca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e282e21c-2c50-4f87-bf4c-8913c4fef0c5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e282e21c-2c50-4f87-bf4c-8913c4fef0c5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e282e21c-2c50-4f87-bf4c-8913c4fef0c5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c4e36183be434582788ff8f2b88f68c2ff2a5687fd0b59279ef191adac97eca","name":"華桜会","registered_at":"2026-06-15T04:26:36Z","symbol":"NIM0681663","token_address":"0x66cca2b55ae78450e1ae8787b31a81081c3cbf2d","type":"artist","uuid":"e282e21c-2c50-4f87-bf4c-8913c4fef0c5"}
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 0x8c4e36183be434582788ff8f2b88f68c2ff2a5687fd0b59279ef191adac97eca. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e282e21c-2c50-4f87-bf4c-8913c4fef0c5.json and https://artists.proofprofile.net/proofs/artist/e282e21c-2c50-4f87-bf4c-8913c4fef0c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0x8c4e36183be434582788ff8f2b88f68c2ff2a5687fd0b59279ef191adac97eca","name":"華桜会","registered_at":"2026-06-15T04:26:36Z","symbol":"NIM0681663","token_address":"0x66cca2b55ae78450e1ae8787b31a81081c3cbf2d","type":"artist","uuid":"e282e21c-2c50-4f87-bf4c-8913c4fef0c5"}
album: ☆SHOW TIME 2☆華桜会&鳳 樹/｢スタミュ｣ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2015-10-14
album: ☆SHOW TIME 2☆華桜会&鳳 樹/｢スタミュ｣ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2015-10-14
  track: 我ら、綾薙学園華桜会
    type: MusicRecording
    duration: PT4M23S
    duration ms: 263080
    explicit: false
    by artist: 華桜会
    in album: ☆SHOW TIME 2☆華桜会&鳳 樹/｢スタミュ｣ミュージカルソングシリーズ
      type: MusicAlbum
      date published: 2015-10-14
    isrc code: JPPI01553160
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T20:52:46+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x86f3a850a1da56eff151b165aa0e4816a0eb0fc7950ffff9ed52b9db679992cd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958462
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958462
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPPI01553160
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:17:53Z
    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 0x86f3a850a1da56eff151b165aa0e4816a0eb0fc7950ffff9ed52b9db679992cd. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/JPPI01553160.
      date published: 2026-07-17T23:17:53Z
    audio: 我ら、綾薙学園華桜会
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.989
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.88
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.278
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.156
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.482
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.244
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: ☆2nd SHOW TIME 6☆ 前・華桜会&暁×楪×漣/「スタミュ」ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2017-05-10
album: ☆2nd SHOW TIME 6☆ 前・華桜会&暁×楪×漣/「スタミュ」ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2017-05-10