かるろす
type: MusicGroup
genre: vocaloid
popularity: 2
followers: 74
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6eac49f48fb1caa3318409fdfcbbb4c85255a7741f281133ad1338e0254147c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954010
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954010
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33e1c4b9-779c-483b-b813-c9db60ab871f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/33e1c4b9-779c-483b-b813-c9db60ab871f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/33e1c4b9-779c-483b-b813-c9db60ab871f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:41:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6eac49f48fb1caa3318409fdfcbbb4c85255a7741f281133ad1338e0254147c9","name":"かるろす","registered_at":"2026-06-16T07:38:38Z","symbol":"NIM0982915","token_address":"0x9111964e689e3b600fff44a1e92409cbda406fe9","type":"artist","uuid":"33e1c4b9-779c-483b-b813-c9db60ab871f"}
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 0x6eac49f48fb1caa3318409fdfcbbb4c85255a7741f281133ad1338e0254147c9. Chain 2 (Bitcoin): anchored in block 954010 (2026-06-16T21:41:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33e1c4b9-779c-483b-b813-c9db60ab871f.json and https://artists.proofprofile.net/proofs/artist/33e1c4b9-779c-483b-b813-c9db60ab871f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T21:41:36Z
  text: {"copyright_id":"0x6eac49f48fb1caa3318409fdfcbbb4c85255a7741f281133ad1338e0254147c9","name":"かるろす","registered_at":"2026-06-16T07:38:38Z","symbol":"NIM0982915","token_address":"0x9111964e689e3b600fff44a1e92409cbda406fe9","type":"artist","uuid":"33e1c4b9-779c-483b-b813-c9db60ab871f"}
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  type: MusicAlbum
  date published: 2022-12-29
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  date published: 2023-09-08
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
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