Masayoshi Furukawa
type: MusicGroup
popularity: 15
followers: 269
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe2826e09b2fdb6705bc8c15be734f8711f19a18fc8aecb8efa9e83d31a8e2413
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953733
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95861dd5-6bab-4338-aafd-ea769ed2a7fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/95861dd5-6bab-4338-aafd-ea769ed2a7fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/95861dd5-6bab-4338-aafd-ea769ed2a7fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:12:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe2826e09b2fdb6705bc8c15be734f8711f19a18fc8aecb8efa9e83d31a8e2413","name":"Masayoshi Furukawa","registered_at":"2026-06-14T20:13:54Z","symbol":"NIM0564016","token_address":"0x91661d46f31447c5a5cc1961ccbf768a94210e66","type":"artist","uuid":"95861dd5-6bab-4338-aafd-ea769ed2a7fb"}
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 0xe2826e09b2fdb6705bc8c15be734f8711f19a18fc8aecb8efa9e83d31a8e2413. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/95861dd5-6bab-4338-aafd-ea769ed2a7fb.json and https://artists.proofprofile.net/proofs/artist/95861dd5-6bab-4338-aafd-ea769ed2a7fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T03:12:39Z
  text: {"copyright_id":"0xe2826e09b2fdb6705bc8c15be734f8711f19a18fc8aecb8efa9e83d31a8e2413","name":"Masayoshi Furukawa","registered_at":"2026-06-14T20:13:54Z","symbol":"NIM0564016","token_address":"0x91661d46f31447c5a5cc1961ccbf768a94210e66","type":"artist","uuid":"95861dd5-6bab-4338-aafd-ea769ed2a7fb"}