USAHARA KYOMUKO
type: MusicGroup
genre: vocaloid
popularity: 12
followers: 552
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x77023a1d13a7879b9c18e4fb6886b44185646cafe66a99dee84b7845a9e55600
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41d4fefc-51ec-40f3-8948-42ae3c499ec9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41d4fefc-51ec-40f3-8948-42ae3c499ec9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41d4fefc-51ec-40f3-8948-42ae3c499ec9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x77023a1d13a7879b9c18e4fb6886b44185646cafe66a99dee84b7845a9e55600","name":"USAHARA KYOMUKO","registered_at":"2026-06-14T11:22:14Z","symbol":"NIM0437217","token_address":"0x57dce0bbb77ce224b4d8c5aca187b0f5cda70f86","type":"artist","uuid":"41d4fefc-51ec-40f3-8948-42ae3c499ec9"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77023a1d13a7879b9c18e4fb6886b44185646cafe66a99dee84b7845a9e55600. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41d4fefc-51ec-40f3-8948-42ae3c499ec9.json and https://artists.proofprofile.net/proofs/artist/41d4fefc-51ec-40f3-8948-42ae3c499ec9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x77023a1d13a7879b9c18e4fb6886b44185646cafe66a99dee84b7845a9e55600","name":"USAHARA KYOMUKO","registered_at":"2026-06-14T11:22:14Z","symbol":"NIM0437217","token_address":"0x57dce0bbb77ce224b4d8c5aca187b0f5cda70f86","type":"artist","uuid":"41d4fefc-51ec-40f3-8948-42ae3c499ec9"}
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  type: MusicAlbum
  date published: 2024-06-28
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  type: MusicAlbum
  date published: 2024-11-23
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  type: MusicAlbum
  date published: 2025-04-26
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  type: MusicAlbum
  date published: 2025-04-26
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-04-26
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  type: MusicAlbum
  date published: 2025-04-26
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  type: MusicAlbum
  date published: 2025-04-27