L1 ValueChain, incubated by SoSoValue, has officially launched its mainnet, and its trading subchain, SoDEX, is now open for user whitelist applications. The platform's token, SOSO, will be upgraded to the mainnet's native gas and governance token. SoDEX utilizes a distributed matching engine architecture, supporting spot and perpetual contract trading across multiple subchains. It utilizes the EVM subchain as its account system, integrated with the ValueChain consensus layer. Furthermore, the system leverages the Mirror Protocol infrastructure of the SoSoValue Indexes Protocol, combining third-party custody and cross-chain bridge solutions to support multi-asset cross-chain transactions.