CEG (Circular Economy Global) is a public chain project that supports the development of smart contracts with Solidity, supports privacy protection based on ring signatures, and supports decentralized cross-chain transactions. CEG's Storeman node group combines various cryptographic technologies such as secure multi-party computing, atomic swap, threshold key sharing, and distributed account management to realize a completely decentralized cross-chain solution. Developers can easily write smart contracts on the CEG platform, develop DApps, and issue Fungible Tokens or Non-fungible Tokens. Based on the cross-chain mechanism, CEG will open up assets on different chains, no matter whether the assets come from public chains, private chains or alliance chains, and allow these assets to flow freely between different chains. CEG focuses on the research and development of cross-chain mechanisms, and realizes the grand goal of Wanchain interconnection by building a distributed financial infrastructure with cross-chain capabilities.