CHO EUN
type: MusicGroup
popularity: 16
followers: 56
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0019e4384da090d656702fee2378c3e7c9bf4de6e04a2b7bc8855c1443ae7735
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2643a7be-a98e-4ac3-8b16-a659bc92c52d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2643a7be-a98e-4ac3-8b16-a659bc92c52d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2643a7be-a98e-4ac3-8b16-a659bc92c52d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0019e4384da090d656702fee2378c3e7c9bf4de6e04a2b7bc8855c1443ae7735","name":"CHO EUN","registered_at":"2026-06-14T08:23:58Z","symbol":"NIM0394708","token_address":"0x91ee5c7314b3265087af6bc3f605ab553b9a0e0f","type":"artist","uuid":"2643a7be-a98e-4ac3-8b16-a659bc92c52d"}
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 0x0019e4384da090d656702fee2378c3e7c9bf4de6e04a2b7bc8855c1443ae7735. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2643a7be-a98e-4ac3-8b16-a659bc92c52d.json and https://artists.proofprofile.net/proofs/artist/2643a7be-a98e-4ac3-8b16-a659bc92c52d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:41:45Z
  text: {"copyright_id":"0x0019e4384da090d656702fee2378c3e7c9bf4de6e04a2b7bc8855c1443ae7735","name":"CHO EUN","registered_at":"2026-06-14T08:23:58Z","symbol":"NIM0394708","token_address":"0x91ee5c7314b3265087af6bc3f605ab553b9a0e0f","type":"artist","uuid":"2643a7be-a98e-4ac3-8b16-a659bc92c52d"}