Joo Hyunmi
type: MusicGroup
popularity: 3
followers: 5
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x500d70b2b973ddd85e27be372ced927fd8ac3042c7d2e0a98a68f46c589c1249
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7582120-15fe-4c8b-aca4-1185138bcde9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7582120-15fe-4c8b-aca4-1185138bcde9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7582120-15fe-4c8b-aca4-1185138bcde9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x500d70b2b973ddd85e27be372ced927fd8ac3042c7d2e0a98a68f46c589c1249","name":"Joo Hyunmi","registered_at":"2026-06-20T15:13:09Z","symbol":"NIM1638777","token_address":"0x0a70ec1486c8e34b78a6107fb13ffe8f4364bf2f","type":"artist","uuid":"b7582120-15fe-4c8b-aca4-1185138bcde9"}
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 0x500d70b2b973ddd85e27be372ced927fd8ac3042c7d2e0a98a68f46c589c1249. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7582120-15fe-4c8b-aca4-1185138bcde9.json and https://artists.proofprofile.net/proofs/artist/b7582120-15fe-4c8b-aca4-1185138bcde9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x500d70b2b973ddd85e27be372ced927fd8ac3042c7d2e0a98a68f46c589c1249","name":"Joo Hyunmi","registered_at":"2026-06-20T15:13:09Z","symbol":"NIM1638777","token_address":"0x0a70ec1486c8e34b78a6107fb13ffe8f4364bf2f","type":"artist","uuid":"b7582120-15fe-4c8b-aca4-1185138bcde9"}