ヒロミ
type: MusicGroup
genre: anime
popularity: 10
followers: 110
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8741c2c39745e014b5cdd4b0c365980f8d1ada5e86b889c206acc6c3ac08cdf5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180858e5-fe72-4bda-8492-8e56254b5623.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/180858e5-fe72-4bda-8492-8e56254b5623.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/180858e5-fe72-4bda-8492-8e56254b5623
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8741c2c39745e014b5cdd4b0c365980f8d1ada5e86b889c206acc6c3ac08cdf5","name":"ヒロミ","registered_at":"2026-06-15T22:10:48Z","symbol":"NIM0847297","token_address":"0x839f11b796a40985ca09d5804cca34b05ce205f2","type":"artist","uuid":"180858e5-fe72-4bda-8492-8e56254b5623"}
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 0x8741c2c39745e014b5cdd4b0c365980f8d1ada5e86b889c206acc6c3ac08cdf5. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/180858e5-fe72-4bda-8492-8e56254b5623.json and https://artists.proofprofile.net/proofs/artist/180858e5-fe72-4bda-8492-8e56254b5623.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x8741c2c39745e014b5cdd4b0c365980f8d1ada5e86b889c206acc6c3ac08cdf5","name":"ヒロミ","registered_at":"2026-06-15T22:10:48Z","symbol":"NIM0847297","token_address":"0x839f11b796a40985ca09d5804cca34b05ce205f2","type":"artist","uuid":"180858e5-fe72-4bda-8492-8e56254b5623"}