Versus (Latin, 'against') may refer to: Film and television Versus (2000 film), a Japanese zombie film Versus (2016 film), a Russian sports drama film Versus (2019 film), a French thriller film
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 0xf0fc40c72080affe9e6f5d1eb4a2b3cc77a0e5b70951ac9e593a41b0f48e5972. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ffa615d9-cc11-41aa-b214-88ea3fc9170b.json and https://artists.proofprofile.net/proofs/artist/ffa615d9-cc11-41aa-b214-88ea3fc9170b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).