Ville is a French word meaning "city" or "town", but its meaning in the Middle Ages was "farm" (from Gallo-Romance VILLA < Latin villa rustica) and then "village". The derivative suffix -ville is comm
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 0xf54ff3a7a09b7c4998112635a4dbe3c0f099f727b1c4c11ddcba1cbc14ad583e. 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/df35b10b-92d7-43be-8d5d-9ae6cbfdc9c9.json and https://artists.proofprofile.net/proofs/artist/df35b10b-92d7-43be-8d5d-9ae6cbfdc9c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).