#USDC Is entering a fresh phase as Circle launches Arc mainnet today, September 16,2026. Arc is a Layer-1 blockchain built for payments, financial markets, and fast onchain settlement, with $USDC serving as its native gas asset. Circle says Arc is designed for deterministic settlement in under one second, while more than 100 applications and institutional ecosystem builders are launching with the network. Binance has completed @USDC integration on Arc and opened deposits. With #USDC circulation above $74 billion, this launch expands its utility beyond being a dollar-pegged stablecoin toward a broader financial infrastructure layer for global digital payments and settlement.