渋谷毅
type: MusicGroup
genre: free jazz
popularity: 10
followers: 1854
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a507495a772d147d59a955022b0b2f9a245fb315d855421f0000095b136baec
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b464f909-76dd-42b6-b7ba-63bf3aa3570c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b464f909-76dd-42b6-b7ba-63bf3aa3570c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b464f909-76dd-42b6-b7ba-63bf3aa3570c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a507495a772d147d59a955022b0b2f9a245fb315d855421f0000095b136baec","name":"渋谷毅","registered_at":"2026-06-20T14:31:35Z","symbol":"NIM1630956","token_address":"0xe63565bf57eaa655d49f285a3937fc563b5c0c49","type":"artist","uuid":"b464f909-76dd-42b6-b7ba-63bf3aa3570c"}
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 0x4a507495a772d147d59a955022b0b2f9a245fb315d855421f0000095b136baec. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b464f909-76dd-42b6-b7ba-63bf3aa3570c.json and https://artists.proofprofile.net/proofs/artist/b464f909-76dd-42b6-b7ba-63bf3aa3570c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x4a507495a772d147d59a955022b0b2f9a245fb315d855421f0000095b136baec","name":"渋谷毅","registered_at":"2026-06-20T14:31:35Z","symbol":"NIM1630956","token_address":"0xe63565bf57eaa655d49f285a3937fc563b5c0c49","type":"artist","uuid":"b464f909-76dd-42b6-b7ba-63bf3aa3570c"}
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