Hatsune Miku
type: MusicGroup
description: , officially code-named CV01, is a mascot for a Vocaloid software voicebank developed by Crypton Future Media. She is depicted as a sixteen-year-old girl with long, turquoise twintails. Miku's personi
popularity: 33
followers: 496
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x809369a917b7f80fe464459d8cf07ddc7443afa59b71cf6789fbd2419f9582f0
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/9d86c64d-1223-4e81-bba7-fb47078bad0f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9d86c64d-1223-4e81-bba7-fb47078bad0f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9d86c64d-1223-4e81-bba7-fb47078bad0f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x809369a917b7f80fe464459d8cf07ddc7443afa59b71cf6789fbd2419f9582f0","name":"Hatsune Miku","registered_at":"2026-06-12T05:42:13Z","symbol":"NIM0203864","token_address":"0x99ca96514b6641b0382a3200d153a32bcd1e8609","type":"artist","uuid":"9d86c64d-1223-4e81-bba7-fb47078bad0f"}
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 0x809369a917b7f80fe464459d8cf07ddc7443afa59b71cf6789fbd2419f9582f0. 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/9d86c64d-1223-4e81-bba7-fb47078bad0f.json and https://artists.proofprofile.net/proofs/artist/9d86c64d-1223-4e81-bba7-fb47078bad0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x809369a917b7f80fe464459d8cf07ddc7443afa59b71cf6789fbd2419f9582f0","name":"Hatsune Miku","registered_at":"2026-06-12T05:42:13Z","symbol":"NIM0203864","token_address":"0x99ca96514b6641b0382a3200d153a32bcd1e8609","type":"artist","uuid":"9d86c64d-1223-4e81-bba7-fb47078bad0f"}