ArcLite is a private market for 35+ tokenized stocks and ETFs on Robinhood Chain, settled in USDG. Instead of placing readable orders into a public queue, traders submit sealed orders into five-minute windows. Once the window closes, the order book is locked onchain. Only then does ArcLite read the Chainlink reference and cross compatible orders at one shared price. Orders stay private while they matter, but settlement remains verifiable. Each batch is checked with a zero-knowledge proof before it settles, showing that the stated rules were followed without publishing individual orders. Users can also withdraw through a separate proof path without waiting for a trading window or operator approval.