YOO SO HYUN
type: MusicGroup
popularity: 2
followers: 245
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe67c6f7c42f7daddb49a2f7dd1265e453367e3b18da87de523002c18833f78d6
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/d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe67c6f7c42f7daddb49a2f7dd1265e453367e3b18da87de523002c18833f78d6","name":"YOO SO HYUN","registered_at":"2026-06-21T03:41:35Z","symbol":"NIM1808365","token_address":"0xd65d7b6d0e18f1d50a67aa5453c4b7cb6d6d9a5e","type":"artist","uuid":"d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67c6f7c42f7daddb49a2f7dd1265e453367e3b18da87de523002c18833f78d6. 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/d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3.json and https://artists.proofprofile.net/proofs/artist/d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xe67c6f7c42f7daddb49a2f7dd1265e453367e3b18da87de523002c18833f78d6","name":"YOO SO HYUN","registered_at":"2026-06-21T03:41:35Z","symbol":"NIM1808365","token_address":"0xd65d7b6d0e18f1d50a67aa5453c4b7cb6d6d9a5e","type":"artist","uuid":"d7a27d6b-70d2-4a2d-99d2-9795d44d9aa3"}