Yuna Kim
type: MusicGroup
description: Yuna Kim (; born September 5, 1990), also credited in eastern name order as Kim Yuna or Kim Yeon-a, is a South Korean figure skater. Known for her well-rounded skills, achievements, popularity, and im
popularity: 9
followers: 999
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0a783730d3efcfb9afe3baf25026aa54162a1a5e5759f4e5c22eaabfd67ba0f
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cff68d94-a56f-4406-b94f-305eae36ed99.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cff68d94-a56f-4406-b94f-305eae36ed99.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cff68d94-a56f-4406-b94f-305eae36ed99
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a783730d3efcfb9afe3baf25026aa54162a1a5e5759f4e5c22eaabfd67ba0f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cff68d94-a56f-4406-b94f-305eae36ed99.json and https://artists.proofprofile.net/proofs/artist/cff68d94-a56f-4406-b94f-305eae36ed99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd0a783730d3efcfb9afe3baf25026aa54162a1a5e5759f4e5c22eaabfd67ba0f","name":"Yuna Kim","registered_at":"2026-06-21T00:53:01Z","symbol":"NIM1765511","token_address":"0xb32c66cc1411ee53400759a8ee10bfd544f14922","type":"artist","uuid":"cff68d94-a56f-4406-b94f-305eae36ed99"}
album: Summer Night
  type: MusicAlbum
  date published: 2019-07-01
album: Ddadang Kids Music & Yuna Kim
  type: MusicAlbum
  date published: 2024-01-10
track: MISSING YOU
  type: MusicRecording
  duration: PT3M29S
  duration ms: 209000
  explicit: false
  by artist: G-DRAGON
  by artist: Kim Yuna
  by artist: Yuna Kim
  in album: COUP D'ETAT [+ ONE OF A KIND & HEARTBREAKER]
    type: MusicAlbum
    date published: 2013-11-27
  genre: k-pop
  genre: k-rap
  isrc code: KRA341211595
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341211595
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:47:07Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x2c49ef91ea273382129265a6f2d4a8875e2f2d03adaf7f2fb564e71323f177a3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/KRA341211595.
    date published: 2026-06-13T12:47:07Z
  audio: MISSING YOU
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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      value: -4.713
    additional property: Key Name
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      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Major