BAM Launches to Redefine Block-Building on Solana

Developed by Jito Labs and with support from the Jito Foundation, BAM transforms Solana‘s core market structure with verifiable fairness, programmable execution, and new revenue opportunities

NEW YORK, July 21, 2025 /PRNewswire/ — The Jito Foundation, in collaboration with Jito Labs, today announced the Block Assembly Marketplace (BAM), a new high-performance block-building architecture for Solana.

BAM makes transaction sequencing transparent and verifiable, enables programmable innovation at the blockspace layer, introduces new revenue opportunities for builders, and largely mitigates harmful Maximal Extractable Value (MEV). Using Trusted Execution Environments (TEEs), BAM proposes a new hardware vertical of node operators running alongside the existing Solana validator set, enabling functionality to rival traditional financial systems.

BAM consists of three interconnected components that together redefine how blocks are built on Solana:

BAM Nodes: A network of scheduler nodes that leverage TEEs. These nodes are the backbone of BAM, running alongside the existing validator set and sequencing transactions within secure enclaves that maintain privacy while ensuring verifiability.
BAM Validators: The set of validators running the updated Jito-Solana client. BAM Validators receive transactions from BAM Nodes and execute them as instructed.
Plugins: Programmable interfaces that give developers, traders, and applications the ability to connect to BAM Nodes’ scheduler and interact with Solana transactions in novel and provably value-accretive ways. These are the building blocks for creating custom transaction sequencing logic. Beyond the expanded transaction scheduling capabilities, Plugin fees unlock a new revenue channel for the ecosystem: developers monetize custom scheduling primitives, while node operators, validators, and stakers share in that value via a built‑in revenue‑sharing model.

BAM’s deterministic, privacy-preserving, and verifiable scheduling helps create a more transparent transaction pipeline for Solana. For institutions, that means auditable markets with execution assurances that rival traditional finance. For users and traders, it means faster, fairer trading. And for developers, it opens the door to building applications that require reliable transaction execution, such as Central Limit Order Books (CLOBs), dark pools, and perpetuals.

“BAM opens up an entirely new design space for developers to build applications that weren’t possible before,” said Lucas Bruder, CEO of Jito Labs. “It gives builders more control, creates new ways to generate and share value, and lays the groundwork for a more dynamic, composable blockspace economy on Solana. Our goal is to grow the pie—by making Solana more transparent, programmable, and rewarding for everyone contributing to its success.”

BAM will be launching on mainnet in the coming weeks with an initial set of leading validators, including Figment, Helius, SOL Strategies, and Triton One, who will begin processing BAM transactions during the rollout phase. As BAM matures, it will evolve into a fully permissionless platform: the BAM Node operator set will expand, the node software will be fully open-sourced, and ongoing governance and development will be managed by the community.

With Solana as the home for internet capital markets, BAM provides the decentralized coordination layer that makes it possible. To learn more about how BAM works and what’s ahead—or to get involved as a developer, validator, or searcher—read the full blog post here.

About the Jito Foundation
The Jito Foundation coordinates ecosystem activities and accelerates the adoption of Jito’s innovative technologies under the direction of the Jito DAO. By driving governance proposals, distributing grants, and forging strategic partnerships, the Foundation empowers stakeholders to shape the future of Jito’s decentralized infrastructures. Through transparent, community-driven initiatives, the Jito Foundation ensures the sustained growth and resilience of Solana‘s DeFi ecosystem, benefiting validators, stakers, and the broader community. Learn more at jito.network.

About Jito Labs
Jito Labs is a core team supporting the development of the Jito ecosystem and technology. They operate under the shared goal of creating advanced blockchain infrastructure to maximize scalability, efficiency, and economic value on Solana. Supported by premier investors like Multicoin Capital, Solana Ventures, and Framework Ventures, Jito Labs delivers transformative infrastructure that drives innovation and secures Solana‘s position as a leader in decentralized finance.