PANews reported on January 27th that Citrea, a Bitcoin Layer 2 project backed by Founders Fund and Galaxy, has officially launched its mainnet and introduced its native stablecoin ctUSD, powered by M0 infrastructure. Citrea uses zkEVM to process transactions and incorporates zero-knowledge proofs into the Bitcoin mainnet, supporting financial applications such as BTC-collateralized lending and structured products, with the goal of building a native Bitcoin financial market.