Miyuki Ichijo
type: MusicGroup
description: , known professionally as , was a Japanese voice actress and singer. Born in Mizusawa, Iwate, she decided to become a singer and underwent training at , and she became part of the cast of the music v
popularity: 9
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f7cc9f12a829e4e93ef55dc1866c99fdd8d5d5ae20da9ce8ac65ec28ae93f56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953999
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953999
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31f7cd63-c0ac-4cea-98b2-25d1e9f45d78.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/31f7cd63-c0ac-4cea-98b2-25d1e9f45d78.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/31f7cd63-c0ac-4cea-98b2-25d1e9f45d78
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:20:58Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f7cc9f12a829e4e93ef55dc1866c99fdd8d5d5ae20da9ce8ac65ec28ae93f56","name":"Miyuki Ichijo","registered_at":"2026-06-16T06:54:08Z","symbol":"NIM0972288","token_address":"0xcfe55fcdae534de574af5003cda6c849e6ab7803","type":"artist","uuid":"31f7cd63-c0ac-4cea-98b2-25d1e9f45d78"}
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 0x9f7cc9f12a829e4e93ef55dc1866c99fdd8d5d5ae20da9ce8ac65ec28ae93f56. Chain 2 (Bitcoin): anchored in block 953999 (2026-06-16T20:20:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31f7cd63-c0ac-4cea-98b2-25d1e9f45d78.json and https://artists.proofprofile.net/proofs/artist/31f7cd63-c0ac-4cea-98b2-25d1e9f45d78.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T20:20:58Z
  text: {"copyright_id":"0x9f7cc9f12a829e4e93ef55dc1866c99fdd8d5d5ae20da9ce8ac65ec28ae93f56","name":"Miyuki Ichijo","registered_at":"2026-06-16T06:54:08Z","symbol":"NIM0972288","token_address":"0xcfe55fcdae534de574af5003cda6c849e6ab7803","type":"artist","uuid":"31f7cd63-c0ac-4cea-98b2-25d1e9f45d78"}