Kasane Teto
type: MusicGroup
genre: vocaloid
description: Kasane Teto (, ) is a virtual singer with a voicebank for UTAU, a singing voice synthesizer software. The character was initially created as a joke for April Fools' Day 2008 on the Japanese textboard
popularity: 13
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fe106917727aa7f1ccd3bbb8c554f8748347811d7ab56e8309b3b88468eb7b8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953765
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953765
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baecaf46-1fbb-4b0e-a44a-4415caf1531f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baecaf46-1fbb-4b0e-a44a-4415caf1531f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/baecaf46-1fbb-4b0e-a44a-4415caf1531f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:55:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fe106917727aa7f1ccd3bbb8c554f8748347811d7ab56e8309b3b88468eb7b8","name":"Kasane Teto","registered_at":"2026-06-15T00:11:34Z","symbol":"NIM0620740","token_address":"0x0037b4bdc1e1487fefadcb74a5e7eab118476ab5","type":"artist","uuid":"baecaf46-1fbb-4b0e-a44a-4415caf1531f"}
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 0x3fe106917727aa7f1ccd3bbb8c554f8748347811d7ab56e8309b3b88468eb7b8. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baecaf46-1fbb-4b0e-a44a-4415caf1531f.json and https://artists.proofprofile.net/proofs/artist/baecaf46-1fbb-4b0e-a44a-4415caf1531f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:55:24Z
  text: {"copyright_id":"0x3fe106917727aa7f1ccd3bbb8c554f8748347811d7ab56e8309b3b88468eb7b8","name":"Kasane Teto","registered_at":"2026-06-15T00:11:34Z","symbol":"NIM0620740","token_address":"0x0037b4bdc1e1487fefadcb74a5e7eab118476ab5","type":"artist","uuid":"baecaf46-1fbb-4b0e-a44a-4415caf1531f"}