team Hiiragi
type: MusicGroup
popularity: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9a00ffc08c5b023875a04832c00a44781a2f6354b6e5f70e3ef3e814a76c363
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87de1bfe-25a7-4981-a7c3-c98a32aa7bbe.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87de1bfe-25a7-4981-a7c3-c98a32aa7bbe.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87de1bfe-25a7-4981-a7c3-c98a32aa7bbe
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa9a00ffc08c5b023875a04832c00a44781a2f6354b6e5f70e3ef3e814a76c363","name":"team Hiiragi","registered_at":"2026-06-17T13:05:46Z","symbol":"NIM1404398","token_address":"0xe7c537ef56d568480c1fba9d56381e7b3a4a4532","type":"artist","uuid":"87de1bfe-25a7-4981-a7c3-c98a32aa7bbe"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a00ffc08c5b023875a04832c00a44781a2f6354b6e5f70e3ef3e814a76c363. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87de1bfe-25a7-4981-a7c3-c98a32aa7bbe.json and https://artists.proofprofile.net/proofs/artist/87de1bfe-25a7-4981-a7c3-c98a32aa7bbe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa9a00ffc08c5b023875a04832c00a44781a2f6354b6e5f70e3ef3e814a76c363","name":"team Hiiragi","registered_at":"2026-06-17T13:05:46Z","symbol":"NIM1404398","token_address":"0xe7c537ef56d568480c1fba9d56381e7b3a4a4532","type":"artist","uuid":"87de1bfe-25a7-4981-a7c3-c98a32aa7bbe"}
album: ☆SHOW TIME 7☆team柊&辰己琉唯×申渡栄吾/｢スタミュ｣ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2015-11-18
album: ☆3rd SHOW TIME 9☆ team柊＆申渡×虎石/｢スタミュ｣ミュージカルソングシリーズ
  type: MusicAlbum
  date published: 2019-08-28