Han Seo Yoon
type: MusicGroup
genre: k-ballad
popularity: 14
followers: 1195
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1bd183273fb2ff6af4da06f0eb3e9faa9466f7dd2a042fddef2dfc9fb93c6fe0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd7fac26-12d3-49e2-8320-bf0c6430d3fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fd7fac26-12d3-49e2-8320-bf0c6430d3fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fd7fac26-12d3-49e2-8320-bf0c6430d3fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1bd183273fb2ff6af4da06f0eb3e9faa9466f7dd2a042fddef2dfc9fb93c6fe0","name":"Han Seo Yoon","registered_at":"2026-06-15T07:05:38Z","symbol":"NIM0719627","token_address":"0x2492960623cbd9eac41dc7f3b51afb884efbcfea","type":"artist","uuid":"fd7fac26-12d3-49e2-8320-bf0c6430d3fd"}
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 0x1bd183273fb2ff6af4da06f0eb3e9faa9466f7dd2a042fddef2dfc9fb93c6fe0. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd7fac26-12d3-49e2-8320-bf0c6430d3fd.json and https://artists.proofprofile.net/proofs/artist/fd7fac26-12d3-49e2-8320-bf0c6430d3fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x1bd183273fb2ff6af4da06f0eb3e9faa9466f7dd2a042fddef2dfc9fb93c6fe0","name":"Han Seo Yoon","registered_at":"2026-06-15T07:05:38Z","symbol":"NIM0719627","token_address":"0x2492960623cbd9eac41dc7f3b51afb884efbcfea","type":"artist","uuid":"fd7fac26-12d3-49e2-8320-bf0c6430d3fd"}
album: Protect the Boss OST Part.6
  type: MusicAlbum
  date published: 2011-08-24
album: 닥터 이방인 (Original Television Soundtrack) Pt. 3
  type: MusicAlbum
  date published: 2014-05-26
album: 헷갈리게 하지마
  type: MusicAlbum
  date published: 2015-09-15
album: 딴따라 Pt. 3 (Original Television Soundtrack)
  type: MusicAlbum
  date published: 2016-05-05
album: Tantara (Original Television Soundtrack), Pt.3
  type: MusicAlbum
  date published: 2016-05-05