Kase Tomoka (CV: Ayane Sakura)
type: MusicGroup
genre: anime
popularity: 10
followers: 288
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46b2675ea0269d7f726a21a1e5fb69496fcbb5e698452553f13b2d3d9cafc9db
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa3538a4-04ac-422f-bb9c-e64ce09ab30d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aa3538a4-04ac-422f-bb9c-e64ce09ab30d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aa3538a4-04ac-422f-bb9c-e64ce09ab30d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46b2675ea0269d7f726a21a1e5fb69496fcbb5e698452553f13b2d3d9cafc9db","name":"Kase Tomoka (CV: Ayane Sakura)","registered_at":"2026-06-20T09:08:49Z","symbol":"NIM1575100","token_address":"0xd6532875dcff22b0d5b0c9e67ed75942cb9db8bc","type":"artist","uuid":"aa3538a4-04ac-422f-bb9c-e64ce09ab30d"}
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 0x46b2675ea0269d7f726a21a1e5fb69496fcbb5e698452553f13b2d3d9cafc9db. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aa3538a4-04ac-422f-bb9c-e64ce09ab30d.json and https://artists.proofprofile.net/proofs/artist/aa3538a4-04ac-422f-bb9c-e64ce09ab30d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x46b2675ea0269d7f726a21a1e5fb69496fcbb5e698452553f13b2d3d9cafc9db","name":"Kase Tomoka (CV: Ayane Sakura)","registered_at":"2026-06-20T09:08:49Z","symbol":"NIM1575100","token_address":"0xd6532875dcff22b0d5b0c9e67ed75942cb9db8bc","type":"artist","uuid":"aa3538a4-04ac-422f-bb9c-e64ce09ab30d"}