Francis Dubois (born 28 November 1961) is a French politician of the Republicans (LR) who served as a member of the National Assembly for Corrèze's 1st constituency from 2022 to 2024. In the run-up t
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 0x5dd8d968fb197ec8d785403d4ed1abf21456191777d5a1c75e7bf306088ea4dd. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d57470bd-63dc-4ba8-8309-5c1217d85fbf.json and https://artists.proofprofile.net/proofs/artist/d57470bd-63dc-4ba8-8309-5c1217d85fbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).