Rei Kagaya
type: MusicGroup
popularity: 3
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd45307a50d71930cafa7fedc31ad23e3b458875d73ba1d5947c11599666f2299
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04dedee1-7598-41e4-bb21-89155b5f77b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04dedee1-7598-41e4-bb21-89155b5f77b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04dedee1-7598-41e4-bb21-89155b5f77b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd45307a50d71930cafa7fedc31ad23e3b458875d73ba1d5947c11599666f2299","name":"Rei Kagaya","registered_at":"2026-06-15T15:17:26Z","symbol":"NIM0748676","token_address":"0xf953568bf8f968fe683d05d3109245214a4cb248","type":"artist","uuid":"04dedee1-7598-41e4-bb21-89155b5f77b3"}
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 0xd45307a50d71930cafa7fedc31ad23e3b458875d73ba1d5947c11599666f2299. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04dedee1-7598-41e4-bb21-89155b5f77b3.json and https://artists.proofprofile.net/proofs/artist/04dedee1-7598-41e4-bb21-89155b5f77b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0xd45307a50d71930cafa7fedc31ad23e3b458875d73ba1d5947c11599666f2299","name":"Rei Kagaya","registered_at":"2026-06-15T15:17:26Z","symbol":"NIM0748676","token_address":"0xf953568bf8f968fe683d05d3109245214a4cb248","type":"artist","uuid":"04dedee1-7598-41e4-bb21-89155b5f77b3"}
album: [The Celestial Railroad] Soundtrack
  type: MusicAlbum
  date published: 2007-02-10
album: True Sky
  type: MusicAlbum
  date published: 2016-08-31
album: Tsukinonaruhoue
  type: MusicAlbum
  date published: 2019-10-12