揚羽 陸（CV.島﨑信長）
type: MusicGroup
popularity: 13
followers: 478
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3feff308843309a9599e513f328f6a9da62dd9e662e06eeda472213752c1ab3d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953777
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953777
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:52:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3feff308843309a9599e513f328f6a9da62dd9e662e06eeda472213752c1ab3d","name":"揚羽 陸（CV.島﨑信長）","registered_at":"2026-06-15T01:53:27Z","symbol":"NIM0645108","token_address":"0xc786ba435448e418be9d14338e7dfe3e3abe1b4c","type":"artist","uuid":"cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb"}
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 0x3feff308843309a9599e513f328f6a9da62dd9e662e06eeda472213752c1ab3d. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb.json and https://artists.proofprofile.net/proofs/artist/cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0x3feff308843309a9599e513f328f6a9da62dd9e662e06eeda472213752c1ab3d","name":"揚羽 陸（CV.島﨑信長）","registered_at":"2026-06-15T01:53:27Z","symbol":"NIM0645108","token_address":"0xc786ba435448e418be9d14338e7dfe3e3abe1b4c","type":"artist","uuid":"cb726225-cc0e-4c4b-b0c0-80c7b10f4ebb"}
album: ☆2nd SHOW TIME 1☆ 揚羽&揚羽×蜂矢/「スタミュ」ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2017-04-05
album: ☆2nd SHOW TIME 1☆ 揚羽&揚羽×蜂矢/「スタミュ」ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2017-04-05