Engie SA (stylised in all caps as ENGIE) is a French multinational electric utility company, headquartered in La Défense, Courbevoie. Its activities cover electricity generation and distribution, natu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b87fffb7d24c6a5f7702c5a1abb1cca83cac53468c0a491d294494af901c478. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f05f7f0f-7aae-4521-82ea-bad2162f6849.json and https://artists.proofprofile.net/proofs/artist/f05f7f0f-7aae-4521-82ea-bad2162f6849.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).