Jean Lassalle
type: MusicGroup
genre: chamber music
genre: opera
description: Jean Lassalle (; ; born 3 May 1955) is a French politician who represented the 4th constituency of the Pyrénées-Atlantiques department in the National Assembly from 2002 to 2022. A former member of t
popularity: 14
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x610b529cf42d8d858e6f55cd1af303b9ecb1ee7f8abbdc782d4eb900b9546a88
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953812
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953812
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f749b64e-39b7-44f7-a256-fec226a6ebb0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f749b64e-39b7-44f7-a256-fec226a6ebb0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f749b64e-39b7-44f7-a256-fec226a6ebb0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T17:06:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x610b529cf42d8d858e6f55cd1af303b9ecb1ee7f8abbdc782d4eb900b9546a88","name":"Jean Lassalle","registered_at":"2026-06-15T06:29:11Z","symbol":"NIM0710928","token_address":"0x55f7596df9e29b63690bc8878c5d04a472581d9d","type":"artist","uuid":"f749b64e-39b7-44f7-a256-fec226a6ebb0"}
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 0x610b529cf42d8d858e6f55cd1af303b9ecb1ee7f8abbdc782d4eb900b9546a88. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f749b64e-39b7-44f7-a256-fec226a6ebb0.json and https://artists.proofprofile.net/proofs/artist/f749b64e-39b7-44f7-a256-fec226a6ebb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:22:30Z
  text: {"copyright_id":"0x610b529cf42d8d858e6f55cd1af303b9ecb1ee7f8abbdc782d4eb900b9546a88","name":"Jean Lassalle","registered_at":"2026-06-15T06:29:11Z","symbol":"NIM0710928","token_address":"0x55f7596df9e29b63690bc8878c5d04a472581d9d","type":"artist","uuid":"f749b64e-39b7-44f7-a256-fec226a6ebb0"}