黒沢健一
type: MusicGroup
genre: anime
popularity: 14
followers: 733
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43fad83a417faab5539c6408887279b24994504c4cd09c755ac3129dfad46274
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/282059dc-be61-4789-8215-9c7eb687d555.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/282059dc-be61-4789-8215-9c7eb687d555.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/282059dc-be61-4789-8215-9c7eb687d555
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43fad83a417faab5539c6408887279b24994504c4cd09c755ac3129dfad46274","name":"黒沢健一","registered_at":"2026-06-14T08:42:41Z","symbol":"NIM0399160","token_address":"0x06840ca92983c7fa69d9ec6cbc1fa0f96af2b260","type":"artist","uuid":"282059dc-be61-4789-8215-9c7eb687d555"}
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 0x43fad83a417faab5539c6408887279b24994504c4cd09c755ac3129dfad46274. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/282059dc-be61-4789-8215-9c7eb687d555.json and https://artists.proofprofile.net/proofs/artist/282059dc-be61-4789-8215-9c7eb687d555.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x43fad83a417faab5539c6408887279b24994504c4cd09c755ac3129dfad46274","name":"黒沢健一","registered_at":"2026-06-14T08:42:41Z","symbol":"NIM0399160","token_address":"0x06840ca92983c7fa69d9ec6cbc1fa0f96af2b260","type":"artist","uuid":"282059dc-be61-4789-8215-9c7eb687d555"}
album: LIVE without electricity
  type: MusicAlbum
  date published: 2008-06-04
album: Focus
  type: MusicAlbum
  date published: 2009-03-04
album: V.S.G.P
  type: MusicAlbum
  date published: 2010-12-15
album: LIVE2011 NEW DIRECTION
  type: MusicAlbum
  date published: 2012-05-30
album: LIFE TIME BEST BEST VALUE
  type: MusicAlbum
  date published: 2015-02-25