According to CoinWorld news, Jito Foundation and Jito Labs jointly launched the Solana block construction framework Block Assembly Marketplace (BAM), which achieves verifiable transaction ordering, programmable execution logic, and a new revenue distribution mechanism through a Trusted Execution Environment (TEE), aiming to mitigate harmful MEV and enhance on-chain transparency. BAM consists of scheduling nodes (BAM Nodes), upgraded validator clients (BAM Validators), and a plugin system, supporting custom transaction ordering logic. Developers can charge fees through plugins, and node operators, validators, and stakers share revenue according to a built-in model.