허성욱
type: MusicGroup
genre: k-ballad
genre: k-rock
popularity: 6
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf27d9bcb61494cb2dfb7fe1c62634ae2c9e236dc02016f1df280e0fd81eabd08
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e713f67d-d5a8-4a68-ac35-1cb623639128.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e713f67d-d5a8-4a68-ac35-1cb623639128.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e713f67d-d5a8-4a68-ac35-1cb623639128
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf27d9bcb61494cb2dfb7fe1c62634ae2c9e236dc02016f1df280e0fd81eabd08","name":"허성욱","registered_at":"2026-06-21T08:54:51Z","symbol":"NIM1881703","token_address":"0x03054e2bf907945c6aeb191200fe8867572fc7e8","type":"artist","uuid":"e713f67d-d5a8-4a68-ac35-1cb623639128"}
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 0xf27d9bcb61494cb2dfb7fe1c62634ae2c9e236dc02016f1df280e0fd81eabd08. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e713f67d-d5a8-4a68-ac35-1cb623639128.json and https://artists.proofprofile.net/proofs/artist/e713f67d-d5a8-4a68-ac35-1cb623639128.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xf27d9bcb61494cb2dfb7fe1c62634ae2c9e236dc02016f1df280e0fd81eabd08","name":"허성욱","registered_at":"2026-06-21T08:54:51Z","symbol":"NIM1881703","token_address":"0x03054e2bf907945c6aeb191200fe8867572fc7e8","type":"artist","uuid":"e713f67d-d5a8-4a68-ac35-1cb623639128"}