Dauchy is a surname. Notable people with the surname include: Krys Dauchy (born 1970), American cyclist Marie Dauchy (born 1987), French politician See also Duchy
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 0x7d3e5488d2c4230b8b20c45380f241afee20ed8840b9bc6417d2782d054719e1. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33279629-bfe3-4164-b8cd-51c0d873eb0c.json and https://artists.proofprofile.net/proofs/artist/33279629-bfe3-4164-b8cd-51c0d873eb0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).