椛田 早紀
type: MusicGroup
genre: shibuya-kei
popularity: 26
followers: 290
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa1dad7e4db1b39f75dada76b56531e0677827eec00141c3cb997f0d0915a5905
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/a307fd93-63fd-4794-a1e8-e20ef9c70c42.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a307fd93-63fd-4794-a1e8-e20ef9c70c42.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a307fd93-63fd-4794-a1e8-e20ef9c70c42
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa1dad7e4db1b39f75dada76b56531e0677827eec00141c3cb997f0d0915a5905","name":"椛田 早紀","registered_at":"2026-06-12T06:14:35Z","symbol":"NIM0211262","token_address":"0x01a919a60ad04d593b645fe29a2c63e933d49919","type":"artist","uuid":"a307fd93-63fd-4794-a1e8-e20ef9c70c42"}
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 0xa1dad7e4db1b39f75dada76b56531e0677827eec00141c3cb997f0d0915a5905. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a307fd93-63fd-4794-a1e8-e20ef9c70c42.json and https://artists.proofprofile.net/proofs/artist/a307fd93-63fd-4794-a1e8-e20ef9c70c42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xa1dad7e4db1b39f75dada76b56531e0677827eec00141c3cb997f0d0915a5905","name":"椛田 早紀","registered_at":"2026-06-12T06:14:35Z","symbol":"NIM0211262","token_address":"0x01a919a60ad04d593b645fe29a2c63e933d49919","type":"artist","uuid":"a307fd93-63fd-4794-a1e8-e20ef9c70c42"}