Solana’s New Block Economy? Jito Labs Unveils BAM to Transform How Blocks Are Built (1)
Staff Writer • 2025-07-22
The Block Assembly Marketplace promises faster, fairer, and programmable blockspace on Solana—without the MEV tax. NEW YORK — Solana just got a major upgrade in how its blocks are built. The Jito Foundation, in collaboration with Jito Labs, has introduced the Block Assembly Marketplace (BAM), a high-performance block-building framework that’s aiming to bring Wall Street-grade execution to the blockchain world. At its core, BAM is a new infrastructure layer that rethinks how transactions are sequenced and monetized. Instead of opaque ordering or auction-based chaos, BAM offers a deterministic, verifiable, and privacy-preserving pipeline—designed to dramatically reduce harmful Maximal Extractable Value (MEV) while opening up new revenue models for developers and validators alike. “BAM opens up an entirely new design space for developers,” said Lucas Bruder, CEO of Jito Labs. “It’s programmable, auditable, and lets builders capture value in ways that weren’t possible before.” How BAM Works The architecture is built on three key components: BAM Nodes: These are a network of schedulers that use Trusted Execution Environments (TEEs) to securely sequence transactions. Think of them as transaction referees operating in privacy-preserving enclaves. BAM Validators: An upgraded set of Solana validators running Jito-Solana software. They take their cues from BAM Nodes and execute transactions accordingly. Plugins: This is where it gets interesting. Developers can write plugins—custom scheduling logic that integrates directly with BAM Nodes. These plugins can support advanced financial mechanisms like central limit order books, dark pools, or even programmable auctions. And yes, plugin creators can earn revenue, thanks to a built-in fee and revenue-sharing model. In plain terms, BAM shifts transaction sequencing from being an internal validator function to a programmable, value-generating layer. And unlike traditional MEV approaches that extract value at users’ expense, BAM aims to share that value among developers, validators, stakers, and the broader ecosystem. What's at Stake MEV has long been the silent tax of DeFi. In Ethereum’s world, searchers battle to extract value from users through sandwich attacks and frontrunning. Solana, known for its speed and low fees, hasn’t been immune. But BAM proposes a new model—one that prioritizes fairness, transparency, and developer empowerment. By leveraging TEEs, BAM ensures transactions are sequenced in a verifiable but private manner, meaning institutional players get execution guarantees without sacrificing confidentiality. For traders, it’s faster and more equitable. And for Solana’s broader ecosystem, it introduces a modular, plugin-friendly economy of blockspace—something that’s been missing from the conversation around smart contract platforms. What's Next The rollout is already underway. Validators like Figment, Helius, SOL Strategies, and Triton One are lined up to begin processing BAM transactions in the coming weeks. The platform will launch with a partially permissioned validator and node set, but plans to evolve into a fully open, community-governed system over time. This isn’t just a technical upgrade—it’s a bet on Solana becoming the home of internet capital markets. With programmable blocks, transparent coordination, and novel value flows, BAM could be the infrastructure that brings institutional-grade order execution to DeFi’s front lines. For developers and institutions looking to build or trade on Solana, the message is clear: Solana’s blockspace just became programmable real estate—and BAM is the brokerage.
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