Romain Leroy
type: MusicGroup
popularity: 19
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x336f7a2b4371c78ef2248bae9db732ed02d4960fa9fc368be0ef97edc3ea1f3c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953807
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee81e07a-38c6-401e-84b8-e4d74245ac85.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ee81e07a-38c6-401e-84b8-e4d74245ac85.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ee81e07a-38c6-401e-84b8-e4d74245ac85
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T16:39:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x336f7a2b4371c78ef2248bae9db732ed02d4960fa9fc368be0ef97edc3ea1f3c","name":"Romain Leroy","registered_at":"2026-06-15T05:35:29Z","symbol":"NIM0698114","token_address":"0x8306108ed9e7abb940c2071d057a3bcba5c7101e","type":"artist","uuid":"ee81e07a-38c6-401e-84b8-e4d74245ac85"}
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 0x336f7a2b4371c78ef2248bae9db732ed02d4960fa9fc368be0ef97edc3ea1f3c. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee81e07a-38c6-401e-84b8-e4d74245ac85.json and https://artists.proofprofile.net/proofs/artist/ee81e07a-38c6-401e-84b8-e4d74245ac85.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
  text: {"copyright_id":"0x336f7a2b4371c78ef2248bae9db732ed02d4960fa9fc368be0ef97edc3ea1f3c","name":"Romain Leroy","registered_at":"2026-06-15T05:35:29Z","symbol":"NIM0698114","token_address":"0x8306108ed9e7abb940c2071d057a3bcba5c7101e","type":"artist","uuid":"ee81e07a-38c6-401e-84b8-e4d74245ac85"}
album: Sous un ciel doré
  type: MusicAlbum
  date published: 2024-08-17