久石 譲
type: MusicGroup
genre: new age
popularity: 2
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3227be8adc2a7b030acd57a062b1713d29d48a6d57059a7f1510f8aadc2b7bd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953857
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953857
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0284ca87-4fb8-4df2-aff9-62ce2b1d463c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0284ca87-4fb8-4df2-aff9-62ce2b1d463c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0284ca87-4fb8-4df2-aff9-62ce2b1d463c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:34:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3227be8adc2a7b030acd57a062b1713d29d48a6d57059a7f1510f8aadc2b7bd9","name":"久石 譲","registered_at":"2026-06-15T14:28:56Z","symbol":"NIM0737113","token_address":"0x4661f1ac7cac75d31b7097443023ee0e77c921ab","type":"artist","uuid":"0284ca87-4fb8-4df2-aff9-62ce2b1d463c"}
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 0x3227be8adc2a7b030acd57a062b1713d29d48a6d57059a7f1510f8aadc2b7bd9. Chain 2 (Bitcoin): anchored in block 953857 (2026-06-15T23:34:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0284ca87-4fb8-4df2-aff9-62ce2b1d463c.json and https://artists.proofprofile.net/proofs/artist/0284ca87-4fb8-4df2-aff9-62ce2b1d463c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T23:34:38Z
  text: {"copyright_id":"0x3227be8adc2a7b030acd57a062b1713d29d48a6d57059a7f1510f8aadc2b7bd9","name":"久石 譲","registered_at":"2026-06-15T14:28:56Z","symbol":"NIM0737113","token_address":"0x4661f1ac7cac75d31b7097443023ee0e77c921ab","type":"artist","uuid":"0284ca87-4fb8-4df2-aff9-62ce2b1d463c"}