Lattice seals orders with SHA-256 cryptography before they touch the blockchain. Bots can’t front-run what they can’t see.
Submit a SHA-256 hash of your order. Price, amount, direction — all hidden. Not even validators know your intent.
sha256(in+out+amount+price+salt)The commit window closes after N slots. No new orders enter. Bots have nothing to react to — zero attack surface.
~20 slots commit · ~15 slots revealAll traders reveal simultaneously. The Walrasian algorithm finds one fair price where supply meets demand. Every order fills at identical p*.
p* = argmax_p min(cumBuy(≥p), cumSell(≤p))In 1999, the architects of the modern web reserved this code for one reason: they knew machines would eventually need a native way to pay each other. The technology wasn't ready. For 27 years, Code 402 sat dormant — a ghost in the machine.
Lattice is that future. Our autonomous liquidity agents use the x402 standard to programmatically pay for MEV-shielding. When an agent encounters a 402, it doesn't stop — it negotiates, signs, and pays the relay fee to secure a private Jito bundle.
The internet's oldest reserved code finally has its purpose.
Watch a real batch auction run in 60 seconds — sealed orders, live slot countdown, Walrasian clearing, verifiable on Solana Explorer.
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