ヨウ(CV.斉藤朱夏)
type: MusicGroup
popularity: 14
followers: 680
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ab9854c733faf0ecc91251dbb5377731ed8a5427a3f778b333a039508bcac81
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953684
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953684
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66277719-3737-4492-b056-b41b1137dc7e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/66277719-3737-4492-b056-b41b1137dc7e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/66277719-3737-4492-b056-b41b1137dc7e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T19:51:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ab9854c733faf0ecc91251dbb5377731ed8a5427a3f778b333a039508bcac81","name":"ヨウ(CV.斉藤朱夏)","registered_at":"2026-06-14T15:13:54Z","symbol":"NIM0492510","token_address":"0xe24f9a1202fce914b0137efbaf76f6e0eff667e2","type":"artist","uuid":"66277719-3737-4492-b056-b41b1137dc7e"}
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 0x9ab9854c733faf0ecc91251dbb5377731ed8a5427a3f778b333a039508bcac81. Chain 2 (Bitcoin): anchored in block 953684 (2026-06-14T19:51:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66277719-3737-4492-b056-b41b1137dc7e.json and https://artists.proofprofile.net/proofs/artist/66277719-3737-4492-b056-b41b1137dc7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T19:51:57Z
  text: {"copyright_id":"0x9ab9854c733faf0ecc91251dbb5377731ed8a5427a3f778b333a039508bcac81","name":"ヨウ(CV.斉藤朱夏)","registered_at":"2026-06-14T15:13:54Z","symbol":"NIM0492510","token_address":"0xe24f9a1202fce914b0137efbaf76f6e0eff667e2","type":"artist","uuid":"66277719-3737-4492-b056-b41b1137dc7e"}