砂崎知子
type: MusicGroup
genre: japanese classical
genre: traditional music
popularity: 2
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x71dedcaa9b8af2c0531af34d73ef057722398ffedb72c9509a14865e701dd8a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/980b3ba5-e51a-436a-988f-98552c4a9ee0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/980b3ba5-e51a-436a-988f-98552c4a9ee0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/980b3ba5-e51a-436a-988f-98552c4a9ee0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x71dedcaa9b8af2c0531af34d73ef057722398ffedb72c9509a14865e701dd8a5","name":"砂崎知子","registered_at":"2026-06-17T18:59:26Z","symbol":"NIM1488821","token_address":"0xe07e96a63815f22c3f2c4b8d285f30bed48284de","type":"artist","uuid":"980b3ba5-e51a-436a-988f-98552c4a9ee0"}
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 0x71dedcaa9b8af2c0531af34d73ef057722398ffedb72c9509a14865e701dd8a5. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/980b3ba5-e51a-436a-988f-98552c4a9ee0.json and https://artists.proofprofile.net/proofs/artist/980b3ba5-e51a-436a-988f-98552c4a9ee0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x71dedcaa9b8af2c0531af34d73ef057722398ffedb72c9509a14865e701dd8a5","name":"砂崎知子","registered_at":"2026-06-17T18:59:26Z","symbol":"NIM1488821","token_address":"0xe07e96a63815f22c3f2c4b8d285f30bed48284de","type":"artist","uuid":"980b3ba5-e51a-436a-988f-98552c4a9ee0"}
album: 邦楽演奏家 BEST TAKE 砂崎知子
  type: MusicAlbum
  date published: 1999-07-21
album: 春の海〜宮城道雄作品集〜
  type: MusicAlbum
  date published: 2007-12-19
album: 烏城／砂崎知子箏作品集（２）
  type: MusicAlbum
  date published: 2016-05-18
album: 富士讃歌／砂崎知子箏作品集（３）
  type: MusicAlbum
  date published: 2016-05-18
album: 光の中で／砂崎知子箏作品集（１）
  type: MusicAlbum
  date published: 2016-05-18