Wire · technology
Ex-Sushi CTO Joseph DeLong to Launch Order Book DEX on Robinhood Chain
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Fusion42 · 25 July 2026 · Fusion42 review
Joseph DeLong, former SushiSwap CTO now leading stablecoin card startup Colossus, will launch Deepstate, a fully onchain order book DEX on Robinhood Chain next week. The protocol stores limit orders as 32-byte words in a binary radix tree, capping gas costs through fixed 64-bit tree depth, and joins an already crowded DEX ecosystem on Robinhood Chain.
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◆ ◆ The Wire takeaway
If you're building gas-intensive onchain trading infrastructure, DeLong just proved the fully onchain order book works at scale—and Robinhood Chain is now the place to do it, not Ethereum mainnet. Three weeks in, Robinhood already has more daily users than Base; the DEX race there is open.
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