かるかる
type: MusicGroup
genre: vocaloid
popularity: 2
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x287989f615897c4840347192868d32807d363211e2b3e5d86fd793d4e39a07b4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953988
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953988
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e933f27-5a5c-43e2-8f82-ab6101b28c9b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2e933f27-5a5c-43e2-8f82-ab6101b28c9b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2e933f27-5a5c-43e2-8f82-ab6101b28c9b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:23:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x287989f615897c4840347192868d32807d363211e2b3e5d86fd793d4e39a07b4","name":"かるかる","registered_at":"2026-06-16T05:47:35Z","symbol":"NIM0956394","token_address":"0x200c4b2daf986665790ea41613f2b55dd2f5a206","type":"artist","uuid":"2e933f27-5a5c-43e2-8f82-ab6101b28c9b"}
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 0x287989f615897c4840347192868d32807d363211e2b3e5d86fd793d4e39a07b4. Chain 2 (Bitcoin): anchored in block 953988 (2026-06-16T18:23:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2e933f27-5a5c-43e2-8f82-ab6101b28c9b.json and https://artists.proofprofile.net/proofs/artist/2e933f27-5a5c-43e2-8f82-ab6101b28c9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:23:32Z
  text: {"copyright_id":"0x287989f615897c4840347192868d32807d363211e2b3e5d86fd793d4e39a07b4","name":"かるかる","registered_at":"2026-06-16T05:47:35Z","symbol":"NIM0956394","token_address":"0x200c4b2daf986665790ea41613f2b55dd2f5a206","type":"artist","uuid":"2e933f27-5a5c-43e2-8f82-ab6101b28c9b"}
album: AI死ね。 (feat. 重音テト)
  type: MusicAlbum
  date published: 2024-02-06
album: LGBTQしか受け入れられない糞人類共が (feat. 重音テト)
  type: MusicAlbum
  date published: 2024-05-01
album: AI死ね。 (feat. 重音テト) [ロングバージョン]
  type: MusicAlbum
  date published: 2024-09-14