原口 大
type: MusicGroup
genre: happy hardcore
popularity: 2
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef16acc05108d3062e7e5a46d46344814fc3e63fbf13f7288d7474fce31cd310
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/56a6f74d-5bca-46fd-bec8-c3ae2a81d742.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56a6f74d-5bca-46fd-bec8-c3ae2a81d742.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56a6f74d-5bca-46fd-bec8-c3ae2a81d742
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef16acc05108d3062e7e5a46d46344814fc3e63fbf13f7288d7474fce31cd310","name":"原口 大","registered_at":"2026-06-16T19:43:56Z","symbol":"NIM1155976","token_address":"0x5216d1b2a5b5e85f7795cec2cee8e7a64d39ddd5","type":"artist","uuid":"56a6f74d-5bca-46fd-bec8-c3ae2a81d742"}
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 0xef16acc05108d3062e7e5a46d46344814fc3e63fbf13f7288d7474fce31cd310. 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/56a6f74d-5bca-46fd-bec8-c3ae2a81d742.json and https://artists.proofprofile.net/proofs/artist/56a6f74d-5bca-46fd-bec8-c3ae2a81d742.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xef16acc05108d3062e7e5a46d46344814fc3e63fbf13f7288d7474fce31cd310","name":"原口 大","registered_at":"2026-06-16T19:43:56Z","symbol":"NIM1155976","token_address":"0x5216d1b2a5b5e85f7795cec2cee8e7a64d39ddd5","type":"artist","uuid":"56a6f74d-5bca-46fd-bec8-c3ae2a81d742"}