金澤紘人(CV:石川英郎)
type: MusicGroup
popularity: 4
followers: 158
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb41da33a5521ba2725b6ce02c6b279d6d3d862c3f2c222bd62bf268897010738
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953888
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953888
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d475995-7989-4ce8-970d-0ac37517c8b0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0d475995-7989-4ce8-970d-0ac37517c8b0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0d475995-7989-4ce8-970d-0ac37517c8b0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T04:55:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb41da33a5521ba2725b6ce02c6b279d6d3d862c3f2c222bd62bf268897010738","name":"金澤紘人(CV:石川英郎)","registered_at":"2026-06-15T18:10:15Z","symbol":"NIM0789933","token_address":"0x5f3b4daca76d46f1e4931fca9a839ef7d7c256fe","type":"artist","uuid":"0d475995-7989-4ce8-970d-0ac37517c8b0"}
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 0xb41da33a5521ba2725b6ce02c6b279d6d3d862c3f2c222bd62bf268897010738. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d475995-7989-4ce8-970d-0ac37517c8b0.json and https://artists.proofprofile.net/proofs/artist/0d475995-7989-4ce8-970d-0ac37517c8b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0xb41da33a5521ba2725b6ce02c6b279d6d3d862c3f2c222bd62bf268897010738","name":"金澤紘人(CV:石川英郎)","registered_at":"2026-06-15T18:10:15Z","symbol":"NIM0789933","token_address":"0x5f3b4daca76d46f1e4931fca9a839ef7d7c256fe","type":"artist","uuid":"0d475995-7989-4ce8-970d-0ac37517c8b0"}
album: Music Bless You 〜音楽の祝福を〜
  type: MusicAlbum
  date published: 2014-03-19