Oh Yun
type: MusicGroup
popularity: 8
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf3ce8285dc0efc96658b460fc6c74c8b12af7f56e6274bf7659afd4315bd694
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/e7c0af07-8f60-458b-a40f-691c8e9dd5ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7c0af07-8f60-458b-a40f-691c8e9dd5ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7c0af07-8f60-458b-a40f-691c8e9dd5ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf3ce8285dc0efc96658b460fc6c74c8b12af7f56e6274bf7659afd4315bd694","name":"Oh Yun","registered_at":"2026-06-21T09:08:44Z","symbol":"NIM1884888","token_address":"0x72af6a114bd4b97dcc8a17fc5048d38c8f441e77","type":"artist","uuid":"e7c0af07-8f60-458b-a40f-691c8e9dd5ae"}
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 0xbf3ce8285dc0efc96658b460fc6c74c8b12af7f56e6274bf7659afd4315bd694. 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/e7c0af07-8f60-458b-a40f-691c8e9dd5ae.json and https://artists.proofprofile.net/proofs/artist/e7c0af07-8f60-458b-a40f-691c8e9dd5ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xbf3ce8285dc0efc96658b460fc6c74c8b12af7f56e6274bf7659afd4315bd694","name":"Oh Yun","registered_at":"2026-06-21T09:08:44Z","symbol":"NIM1884888","token_address":"0x72af6a114bd4b97dcc8a17fc5048d38c8f441e77","type":"artist","uuid":"e7c0af07-8f60-458b-a40f-691c8e9dd5ae"}