Rei Fujiwara
type: MusicGroup
genre: japanese classical
popularity: 39
followers: 1547
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9860080aae444b05c605055f6e39129b569dcd2a32fed2216297f8b5eb015f44
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53e7a168-7cbc-4ac8-a711-35b3e21ea44c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53e7a168-7cbc-4ac8-a711-35b3e21ea44c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53e7a168-7cbc-4ac8-a711-35b3e21ea44c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9860080aae444b05c605055f6e39129b569dcd2a32fed2216297f8b5eb015f44","name":"Rei Fujiwara","registered_at":"2026-06-11T20:56:43Z","symbol":"NIM0109291","token_address":"0x8515122ccf8539b1a7135d6cb0cdacbb8e86e0ab","type":"artist","uuid":"53e7a168-7cbc-4ac8-a711-35b3e21ea44c"}
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 0x9860080aae444b05c605055f6e39129b569dcd2a32fed2216297f8b5eb015f44. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53e7a168-7cbc-4ac8-a711-35b3e21ea44c.json and https://artists.proofprofile.net/proofs/artist/53e7a168-7cbc-4ac8-a711-35b3e21ea44c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x9860080aae444b05c605055f6e39129b569dcd2a32fed2216297f8b5eb015f44","name":"Rei Fujiwara","registered_at":"2026-06-11T20:56:43Z","symbol":"NIM0109291","token_address":"0x8515122ccf8539b1a7135d6cb0cdacbb8e86e0ab","type":"artist","uuid":"53e7a168-7cbc-4ac8-a711-35b3e21ea44c"}
album: Shinrin-yoku
  type: MusicAlbum
  date published: 2022-01-06
album: Shinrin-yoku
  type: MusicAlbum
  date published: 2022-01-06
album: Satori.
  type: MusicAlbum
  date published: 2024-11-22