堀宮英知(CV:西山宏太朗)
type: MusicGroup
popularity: 5
followers: 375
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4967a5dd8dcc7ff4e49818856c29d047873ac73822f13f9eefdef67519d691b7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fdf70d80-9d59-463c-a0f6-f8e186cee267.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fdf70d80-9d59-463c-a0f6-f8e186cee267.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fdf70d80-9d59-463c-a0f6-f8e186cee267
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4967a5dd8dcc7ff4e49818856c29d047873ac73822f13f9eefdef67519d691b7","name":"堀宮英知(CV:西山宏太朗)","registered_at":"2026-06-21T18:18:13Z","symbol":"NIM1995574","token_address":"0xd89a79c3d71e186ee31255ca703f781081fc052b","type":"artist","uuid":"fdf70d80-9d59-463c-a0f6-f8e186cee267"}
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 0x4967a5dd8dcc7ff4e49818856c29d047873ac73822f13f9eefdef67519d691b7. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdf70d80-9d59-463c-a0f6-f8e186cee267.json and https://artists.proofprofile.net/proofs/artist/fdf70d80-9d59-463c-a0f6-f8e186cee267.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x4967a5dd8dcc7ff4e49818856c29d047873ac73822f13f9eefdef67519d691b7","name":"堀宮英知(CV:西山宏太朗)","registered_at":"2026-06-21T18:18:13Z","symbol":"NIM1995574","token_address":"0xd89a79c3d71e186ee31255ca703f781081fc052b","type":"artist","uuid":"fdf70d80-9d59-463c-a0f6-f8e186cee267"}
album: SQ QUELL 花鳥風月「風」編
  type: MusicAlbum
  date published: 2018-08-29
album: SQ QUELL 「RESTART」 シリーズ⑤
  type: MusicAlbum
  date published: 2019-03-27
album: SQ「あの頃の僕らは」シリーズ・堀宮英知「愛を祈ろう」
  type: MusicAlbum
  date published: 2023-12-29