Tsuyu Yamaji
type: MusicGroup
popularity: 8
followers: 123
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce4b2ac4d694e420408464bc575e150d3ae556c0506cf78ee9bb021fcdd48230
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b69dd9b4-10c9-416d-b590-9b782b2eb513.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b69dd9b4-10c9-416d-b590-9b782b2eb513.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b69dd9b4-10c9-416d-b590-9b782b2eb513
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce4b2ac4d694e420408464bc575e150d3ae556c0506cf78ee9bb021fcdd48230","name":"Tsuyu Yamaji","registered_at":"2026-06-20T15:07:21Z","symbol":"NIM1638493","token_address":"0x707da1dc1d9c92b8d53063c28303c7217e8a5e3b","type":"artist","uuid":"b69dd9b4-10c9-416d-b590-9b782b2eb513"}
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 0xce4b2ac4d694e420408464bc575e150d3ae556c0506cf78ee9bb021fcdd48230. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b69dd9b4-10c9-416d-b590-9b782b2eb513.json and https://artists.proofprofile.net/proofs/artist/b69dd9b4-10c9-416d-b590-9b782b2eb513.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0xce4b2ac4d694e420408464bc575e150d3ae556c0506cf78ee9bb021fcdd48230","name":"Tsuyu Yamaji","registered_at":"2026-06-20T15:07:21Z","symbol":"NIM1638493","token_address":"0x707da1dc1d9c92b8d53063c28303c7217e8a5e3b","type":"artist","uuid":"b69dd9b4-10c9-416d-b590-9b782b2eb513"}
album: さいた
  type: MusicAlbum
  date published: 2017-07-28
album: 夕暮れ
  type: MusicAlbum
  date published: 2017-08-02