김현아
type: MusicGroup
popularity: 2
followers: 92
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4a5efe0f2dfa3199de5ea9f40e70d1e2590c75c2589fabdb5258f01eca430cc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a8291cb-8710-4773-b5b8-bf0a83aaa32f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a8291cb-8710-4773-b5b8-bf0a83aaa32f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a8291cb-8710-4773-b5b8-bf0a83aaa32f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4a5efe0f2dfa3199de5ea9f40e70d1e2590c75c2589fabdb5258f01eca430cc","name":"김현아","registered_at":"2026-06-17T08:18:18Z","symbol":"NIM1335926","token_address":"0x3d2a18870361353f078091cc2ffd3f98392c6b34","type":"artist","uuid":"7a8291cb-8710-4773-b5b8-bf0a83aaa32f"}
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 0xc4a5efe0f2dfa3199de5ea9f40e70d1e2590c75c2589fabdb5258f01eca430cc. Chain 2 (Bitcoin): anchored in block 954069 (2026-06-17T08:30:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a8291cb-8710-4773-b5b8-bf0a83aaa32f.json and https://artists.proofprofile.net/proofs/artist/7a8291cb-8710-4773-b5b8-bf0a83aaa32f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:30:25Z
  text: {"copyright_id":"0xc4a5efe0f2dfa3199de5ea9f40e70d1e2590c75c2589fabdb5258f01eca430cc","name":"김현아","registered_at":"2026-06-17T08:18:18Z","symbol":"NIM1335926","token_address":"0x3d2a18870361353f078091cc2ffd3f98392c6b34","type":"artist","uuid":"7a8291cb-8710-4773-b5b8-bf0a83aaa32f"}
album: 트롯 넘버원 1, 2집
  type: MusicAlbum
  date published: 2010-11-30
album: 딱 너 같은 딸 (Original Television Soundtrack), Pt. 4
  type: MusicAlbum
  date published: 2015-06-25
album: 편지
  type: MusicAlbum
  date published: 2020-07-31
album: 피카소의 꿈
  type: MusicAlbum
  date published: 2021-07-05