響 奏音(CV.江口拓也)
type: MusicGroup
popularity: 9
followers: 538
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a5f739e11818ad074f2f5ec769509ee1f1612d8acdd8caa507c515807366e72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7ab24fe-8b53-455a-acaf-a27b39023323.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7ab24fe-8b53-455a-acaf-a27b39023323.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f7ab24fe-8b53-455a-acaf-a27b39023323
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a5f739e11818ad074f2f5ec769509ee1f1612d8acdd8caa507c515807366e72","name":"響 奏音(CV.江口拓也)","registered_at":"2026-06-21T15:44:41Z","symbol":"NIM1963220","token_address":"0x706863640940d9e92c64be8446ff19501b4e2cc3","type":"artist","uuid":"f7ab24fe-8b53-455a-acaf-a27b39023323"}
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 0x1a5f739e11818ad074f2f5ec769509ee1f1612d8acdd8caa507c515807366e72. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7ab24fe-8b53-455a-acaf-a27b39023323.json and https://artists.proofprofile.net/proofs/artist/f7ab24fe-8b53-455a-acaf-a27b39023323.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x1a5f739e11818ad074f2f5ec769509ee1f1612d8acdd8caa507c515807366e72","name":"響 奏音(CV.江口拓也)","registered_at":"2026-06-21T15:44:41Z","symbol":"NIM1963220","token_address":"0x706863640940d9e92c64be8446ff19501b4e2cc3","type":"artist","uuid":"f7ab24fe-8b53-455a-acaf-a27b39023323"}
album: Rainbow Star(TV Size)
  type: MusicAlbum
  date published: 2016-10-31