Arc
Stablecoin-native EVM Layer 1 for payments, FX, and tokenization

Arc is a purpose-built, EVM-compatible Layer 1 for stablecoin finance and tokenization. Its litepaper describes USDC as native gas, deterministic settlement, opt-in privacy, and a stable fee architecture for global payments, FX, and capital markets; Circle identifies the testnet as a Circle Technology Services product rather than a separate staffed office.