KOUI C
type: MusicGroup
popularity: 9
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5f17c60e7ce8d52ab07423e1b49833ba9a14a30f617a85e68383f5d1b21ed0d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5f17c60e7ce8d52ab07423e1b49833ba9a14a30f617a85e68383f5d1b21ed0d2","name":"KOUI C","registered_at":"2026-06-21T05:27:15Z","symbol":"NIM1833254","token_address":"0x259dc58bd4dfa96f6d53921a534114971cb6f142","type":"artist","uuid":"dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a"}
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 0x5f17c60e7ce8d52ab07423e1b49833ba9a14a30f617a85e68383f5d1b21ed0d2. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a.json and https://artists.proofprofile.net/proofs/artist/dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0x5f17c60e7ce8d52ab07423e1b49833ba9a14a30f617a85e68383f5d1b21ed0d2","name":"KOUI C","registered_at":"2026-06-21T05:27:15Z","symbol":"NIM1833254","token_address":"0x259dc58bd4dfa96f6d53921a534114971cb6f142","type":"artist","uuid":"dd6effb9-f2d2-4fc5-bd5c-e4cd920e471a"}
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  type: MusicAlbum
  date published: 2023-09-06
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  type: MusicAlbum
  date published: 2023-10-05
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  type: MusicAlbum
  date published: 2024-06-03
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  type: MusicAlbum
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  type: MusicAlbum
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