허인창 Huh InChang
type: MusicGroup
popularity: 10
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99fe9188773135146b2b17397ea0b3e8b355d1ec7a65b5728a437eb17b67d25e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/052b0364-18b7-42f1-aa70-ab14bb039ed9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/052b0364-18b7-42f1-aa70-ab14bb039ed9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/052b0364-18b7-42f1-aa70-ab14bb039ed9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99fe9188773135146b2b17397ea0b3e8b355d1ec7a65b5728a437eb17b67d25e","name":"허인창 Huh InChang","registered_at":"2026-06-15T15:18:54Z","symbol":"NIM0749031","token_address":"0x52e2044dd08da7fc790d23e37fcafd19b8c602da","type":"artist","uuid":"052b0364-18b7-42f1-aa70-ab14bb039ed9"}
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 0x99fe9188773135146b2b17397ea0b3e8b355d1ec7a65b5728a437eb17b67d25e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/052b0364-18b7-42f1-aa70-ab14bb039ed9.json and https://artists.proofprofile.net/proofs/artist/052b0364-18b7-42f1-aa70-ab14bb039ed9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x99fe9188773135146b2b17397ea0b3e8b355d1ec7a65b5728a437eb17b67d25e","name":"허인창 Huh InChang","registered_at":"2026-06-15T15:18:54Z","symbol":"NIM0749031","token_address":"0x52e2044dd08da7fc790d23e37fcafd19b8c602da","type":"artist","uuid":"052b0364-18b7-42f1-aa70-ab14bb039ed9"}
album: First elimination
  type: MusicAlbum
  date published: 2021-10-23