九十九一希 (CV.徳武竜也)
type: MusicGroup
popularity: 10
followers: 190
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ef6ed9564a6c175af468e799f48bc1c9e6753d3081229575fb03ebdad9c40b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e49236b-8b0f-45a1-b427-0368d478dbbc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9e49236b-8b0f-45a1-b427-0368d478dbbc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9e49236b-8b0f-45a1-b427-0368d478dbbc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ef6ed9564a6c175af468e799f48bc1c9e6753d3081229575fb03ebdad9c40b2","name":"九十九一希 (CV.徳武竜也)","registered_at":"2026-06-20T04:43:22Z","symbol":"NIM1515923","token_address":"0x30784e3999c80a0887324cdbc14f174919b28d0c","type":"artist","uuid":"9e49236b-8b0f-45a1-b427-0368d478dbbc"}
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 0x0ef6ed9564a6c175af468e799f48bc1c9e6753d3081229575fb03ebdad9c40b2. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e49236b-8b0f-45a1-b427-0368d478dbbc.json and https://artists.proofprofile.net/proofs/artist/9e49236b-8b0f-45a1-b427-0368d478dbbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x0ef6ed9564a6c175af468e799f48bc1c9e6753d3081229575fb03ebdad9c40b2","name":"九十九一希 (CV.徳武竜也)","registered_at":"2026-06-20T04:43:22Z","symbol":"NIM1515923","token_address":"0x30784e3999c80a0887324cdbc14f174919b28d0c","type":"artist","uuid":"9e49236b-8b0f-45a1-b427-0368d478dbbc"}