Arcium

The Privacy Show returns! This week, @catmcgee hosts @milianstx, @herz0g, and @typi_cal_ to talk all things privacy on Solana Today at 2PM ET here on X

Arcium is the encrypted compute layer for blockchains. Everything on a public blockchain is permanently visible. That works for speculation but rules out anything that has to keep a secret while it runs. A sealed-bid auction collapses once the bids are visible. An order gets front-run once its size is public. None of this can move onchain because the transaction exposes the secret the moment it is visible. @Arcium separates verification from execution. The outcome stays public and verifiable, while the logic that has to stay hidden runs privately across a cluster of nodes where no single node reconstructs the full data. Arcium's live backend (Cerberus) keeps the result correct as long as one honest node remains. Settlement happens onchain, but the inputs stay private. This opens up a new design space for public blockchains. A launchpad can launch as a sealed-bid auction where no bidder sees the other bids until it closes. A DEX can process an order privately and reduce the surface for MEV. A company can run payroll onchain without exposing its pay structure. Privacy-oriented DeFi has tried to address this by walling off everything, but this came at the cost of composability and fragmented liquidity. Arcium keeps settlement public and composable while the sensitive logic stays hidden. It lets a public chain keep a secret.