基山ヒロト
type: MusicGroup
popularity: 6
followers: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc33c54505e41c1741b42106ba351716ff4c7fb192b70887e3b776e0b3f21cfd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5377413a-2c6d-4631-b5f7-bd8e5e9ce40f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5377413a-2c6d-4631-b5f7-bd8e5e9ce40f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5377413a-2c6d-4631-b5f7-bd8e5e9ce40f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc33c54505e41c1741b42106ba351716ff4c7fb192b70887e3b776e0b3f21cfd","name":"基山ヒロト","registered_at":"2026-06-16T18:36:59Z","symbol":"NIM1139997","token_address":"0x3f9abe42274755ea914b4c3b8d7a94c1ae8065e8","type":"artist","uuid":"5377413a-2c6d-4631-b5f7-bd8e5e9ce40f"}
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 0xcc33c54505e41c1741b42106ba351716ff4c7fb192b70887e3b776e0b3f21cfd. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5377413a-2c6d-4631-b5f7-bd8e5e9ce40f.json and https://artists.proofprofile.net/proofs/artist/5377413a-2c6d-4631-b5f7-bd8e5e9ce40f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcc33c54505e41c1741b42106ba351716ff4c7fb192b70887e3b776e0b3f21cfd","name":"基山ヒロト","registered_at":"2026-06-16T18:36:59Z","symbol":"NIM1139997","token_address":"0x3f9abe42274755ea914b4c3b8d7a94c1ae8065e8","type":"artist","uuid":"5377413a-2c6d-4631-b5f7-bd8e5e9ce40f"}