Jean-Pierre Cassel
type: MusicGroup
description: Jean-Pierre Cassel (; born Jean-Pierre Crochon; 27 October 1932 – 19 April 2007) was a French actor and dancer. A popular star of French cinema, he was initially known for his comedy film appearances,
popularity: 8
followers: 447
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf021a0045b61076518fa72236a86651f24ca2eea25a9b82e87e93799d052536f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954015
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954015
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/347217ae-4b25-4e60-a236-f9c0977136e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/347217ae-4b25-4e60-a236-f9c0977136e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/347217ae-4b25-4e60-a236-f9c0977136e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:55:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf021a0045b61076518fa72236a86651f24ca2eea25a9b82e87e93799d052536f","name":"Jean-Pierre Cassel","registered_at":"2026-06-16T08:09:29Z","symbol":"NIM0990287","token_address":"0x8ee81a26e7a455744f06df73c21fd9f0e4f6a007","type":"artist","uuid":"347217ae-4b25-4e60-a236-f9c0977136e9"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf021a0045b61076518fa72236a86651f24ca2eea25a9b82e87e93799d052536f. Chain 2 (Bitcoin): anchored in block 954015 (2026-06-16T22:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/347217ae-4b25-4e60-a236-f9c0977136e9.json and https://artists.proofprofile.net/proofs/artist/347217ae-4b25-4e60-a236-f9c0977136e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:55:46Z
  text: {"copyright_id":"0xf021a0045b61076518fa72236a86651f24ca2eea25a9b82e87e93799d052536f","name":"Jean-Pierre Cassel","registered_at":"2026-06-16T08:09:29Z","symbol":"NIM0990287","token_address":"0x8ee81a26e7a455744f06df73c21fd9f0e4f6a007","type":"artist","uuid":"347217ae-4b25-4e60-a236-f9c0977136e9"}
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