Didier Eribon (born 10 July 1953) is a French author and philosopher, and a historian of French intellectual life. He lives in Paris. Biography Didier Eribon was born in ReimsContemporary Authors O
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 0xf3fe28d919fbe081c4367f323f7908f6476cb1cb014f04ec27c48675b82d5102. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac3ac8d3-2615-4c03-8703-29f5ace76afa.json and https://artists.proofprofile.net/proofs/artist/ac3ac8d3-2615-4c03-8703-29f5ace76afa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).