TLDR Tech / Crypto
Arc deleted the mempool, and few noticed
Circle's May arXiv paper describes Arc's Multi-Proposer Protocol (AMP), which eliminates the public mempool that exposes pending transactions to front-running bots and lets block builders reorder trades for profit. Instead, dedicated proposers hand transactions directly to validators under bounded inclusion guarantees. Built on the Malachite BFT consensus engine, Arc's testnet has processed over 244 million transactions since October 2025, with roughly 3,000 TPS and sub-350-millisecond finality. It charges gas in USDC rather than a volatile token and is expected to reach mainnet this summer with quantum-secure signatures from launch.
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