Akira Kamiya
type: MusicGroup
description: is a Japanese voice actor. He played several notable roles in Japanese manga and anime television series, including Kenshiro in Fist of the North Star, Ryo Saeba in City Hunter, Shutaro Mendo in Urus
popularity: 3
followers: 49
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2e21c33e5e61b8e2bf98236dca216ef46804911105dc4cac6b2e795698044aa2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3bf5e9a-cf7d-4885-8ffd-67ebc0476258.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3bf5e9a-cf7d-4885-8ffd-67ebc0476258.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3bf5e9a-cf7d-4885-8ffd-67ebc0476258
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2e21c33e5e61b8e2bf98236dca216ef46804911105dc4cac6b2e795698044aa2","name":"Akira Kamiya","registered_at":"2026-06-20T13:18:12Z","symbol":"NIM1622903","token_address":"0xad1ea0537ecfd09996878605760b5e200fa1f17b","type":"artist","uuid":"b3bf5e9a-cf7d-4885-8ffd-67ebc0476258"}
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 0x2e21c33e5e61b8e2bf98236dca216ef46804911105dc4cac6b2e795698044aa2. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3bf5e9a-cf7d-4885-8ffd-67ebc0476258.json and https://artists.proofprofile.net/proofs/artist/b3bf5e9a-cf7d-4885-8ffd-67ebc0476258.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x2e21c33e5e61b8e2bf98236dca216ef46804911105dc4cac6b2e795698044aa2","name":"Akira Kamiya","registered_at":"2026-06-20T13:18:12Z","symbol":"NIM1622903","token_address":"0xad1ea0537ecfd09996878605760b5e200fa1f17b","type":"artist","uuid":"b3bf5e9a-cf7d-4885-8ffd-67ebc0476258"}