Overview: Lighthouse and SBB
Last updated
Last updated
Radius builds economic infrastructure that enables rollups to capture MEV revenue while protecting users. Our solutions include:
Lighthouse: A decentralized network that connects rollups with searchers to capture MEV opportunities for sustainable revenue generation.
Secure Block Building (SBB): A built-in component for rollups that minimizes harmful MEV and secures user transactions through cryptographic techniques.
Secure Block Building (SBB) is a protection module for protecting users from harmful MEV, like frontrunning and sandwich attacks, which can happen during MEV internalization. By using zero-knowledge (ZK) proofs and encrypted mempools, SBB encrypts user transactions without disrupting the user experience. It enables rollups to capture MEV profitably while keeping users protected from economic threats.
SBB runs entirely in the user's browser, so there's no need to install additional apps or extensions. Thanks to recent optimizations, encryption and proof generation now take just one second, making the process almost instant.
Lighthouse is a decentralized network that connects rollups with searchers to capture MEV during block production. Instead of relying on harmful MEV practices like censorship and reordering, Lighthouse enables rollups to harness MEV strategies that improve market efficiency, such as arbitrage and liquidations.
How It Works:
Searchers identify MEV opportunities in rollups and create MEV bundles.
Bundles are submitted to Lighthouse, where searchers compete by bidding for inclusion.
Rollups execute winning bundles and earn fees, creating a sustainable revenue stream beyond transaction fees.
Lighthouse supports diverse MEV strategies including:
CEX-DEX arbitrage
Atomic arbitrage
Liquidations
Cross-rollup arbitrage
Ethereum-rollup arbitrage
Lighthouse continuously evolves to support new MEV strategies, ensuring consistent and scalable revenue for rollups.
Cross-Rollup MEV
Our partnership with Avail enables synchronous atomic transactions across rollups, maximizing value capture from cross-rollup opportunities.
Technical Details: https://ethresear.ch/t/cross-rollup-synchronous-atomic-execution/20193
Based Sequencing
Based Sequencing bridges Ethereum liquidity with rollups, unlocking new MEV opportunities and increasing rollup revenue.
Secure Block Building is a cryptographic primitive designed to protect users from harmful MEV attacks such as frontrunning and reordering while capturing MEV. SBB is an individual component that Radius customizes and integrates for each rollup.
Key Features
Encrypted Transactions: User transactions are encrypted directly in the user’s browser, requiring no additional installations or software.
Minimal Latency: Optimized cryptographic techniques reduce encryption and proof generation to under one second.
Encryption Technologies
Practical Verifiable Delay Encryption (PVDE): This zero-knowledge (ZK) algorithm, developed by Radius, eliminates the need for external trust in key generation. PVDE allows rollups to create proofs for complex cryptographic operations and timelock puzzles in just one second, ensuring fast and secure performance.
Practical Verifiable Delay Encryption (PVDE): A ZK-based encryption algorithm developed by Radius, PVDE eliminates external trust in key generation. It generates proofs for cryptographic operations and timelock puzzles in under one second.
Single Key Delay Encryption (SKDE): SKDE optimizes tx_orderer efficiency by using a unified encryption key per block, preserving MEV protection while maintaining rollup composability and performance.
By connecting Ethereum liquidity to rollups, Radius enables searchers to discover new arbitrage opportunities, ultimately boosting rollup revenue.
Slashing Mechanisms
SBB includes a slashing mechanism that prevents a single tx_orderer from reordering transactions. This is enforced via:
Native rollup security
Shared security protocols like EigenLayer or Symbiotic.
See Curie Testnet (SBB): https://x.com/radius_xyz/status/1724082176818573399
Ready to integrate Lighthouse or Secure Block Building? Here’s how you can get started:
Explore: GitHub
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