Nobuo Furukawa
type: MusicGroup
popularity: 8
followers: 116
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc0b83f76a08a20d19a2873d49976eb07fcafb4fc896d97cb84c56af54173235
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b68e052a-4ed9-4f16-a531-b3e11d8fa0a5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b68e052a-4ed9-4f16-a531-b3e11d8fa0a5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b68e052a-4ed9-4f16-a531-b3e11d8fa0a5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc0b83f76a08a20d19a2873d49976eb07fcafb4fc896d97cb84c56af54173235","name":"Nobuo Furukawa","registered_at":"2026-06-20T15:11:29Z","symbol":"NIM1638654","token_address":"0x36c21c9e250f95223dfa72a4869fe47155798f3e","type":"artist","uuid":"b68e052a-4ed9-4f16-a531-b3e11d8fa0a5"}
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 0xcc0b83f76a08a20d19a2873d49976eb07fcafb4fc896d97cb84c56af54173235. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b68e052a-4ed9-4f16-a531-b3e11d8fa0a5.json and https://artists.proofprofile.net/proofs/artist/b68e052a-4ed9-4f16-a531-b3e11d8fa0a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xcc0b83f76a08a20d19a2873d49976eb07fcafb4fc896d97cb84c56af54173235","name":"Nobuo Furukawa","registered_at":"2026-06-20T15:11:29Z","symbol":"NIM1638654","token_address":"0x36c21c9e250f95223dfa72a4869fe47155798f3e","type":"artist","uuid":"b68e052a-4ed9-4f16-a531-b3e11d8fa0a5"}
album: Gentle Souls
  type: MusicAlbum
  date published: 2014-03-19
album: Gentle Souls
  type: MusicAlbum
  date published: 2014-03-19