VS, Vs or vs may refer to: Arts, entertainment and media Film and television Vs (film), or All Superheroes Must Die, a 2011 horror film Vs. (game show), 1999 "VS.", an episode of Prison Break Gam
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b32f2df195d127953497c9d287886d909c2fd098fd17e70cfe9e2f8323c258. 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/b7d5848e-a17a-425d-b427-7c6de796c826.json and https://artists.proofprofile.net/proofs/artist/b7d5848e-a17a-425d-b427-7c6de796c826.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).