Optimism

The **Optimism Scaling Summit** is taking place, bringing together leaders focused on scaling business innovation and onchain growth. The event features speakers from major organizations including: - Kraken - Celo - Alchemy - LayerZero - Morpho - Base - Flashbots - OP Labs Discussions cover key scaling topics: - Throughput improvements - Payment solutions - Privacy technology - Onchain entertainment The summit is being held live in Denver with worldwide streaming available. [Watch the broadcast](https://x.com/i/broadcasts/1mrGmBPEwaDJy)

Optimism has announced the launch of its **liveness module**, a technical solution designed to improve network reliability and uptime. The module addresses critical infrastructure challenges in the Optimism network, though specific technical details are available in their [full blog post](https://www.optimism.io/blog/liveness-module). This development continues Optimism's focus on building robust scaling solutions for Ethereum. The team is actively [hiring](http://optimism.io/careers) engineers interested in solving similar technical problems. Developers can explore building on Optimism's infrastructure at [optimism.io](https://www.optimism.io/).

A critical security primitive has been released as open-source, removing proprietary barriers in the industry. **Key Points:** - The tool is now freely available for anyone to use, fork, or improve - Developers believe making security tools publicly accessible strengthens the entire industry - The release follows a philosophy of transparency over "security by obscurity" The move represents a shift toward collaborative security development, allowing the community to build upon and enhance the tool rather than keeping it behind closed doors.

Optimism has deployed a new open-source module for multisig operations, following a security audit by Spearbit. **Key Details:** - The module is now publicly available and open-source - Successfully audited by Spearbit security firm - Already in production use by Optimism's own multisig wallets - Built to address internal operational needs The team developed this tool to solve their own requirements before releasing it to the broader ecosystem. The module represents Optimism's continued investment in infrastructure tooling for Layer 2 operations.

A new liveness module addresses a critical security gap in multisig wallets. The system works through a simple challenge-response mechanism: - A trusted fallback can challenge the multisig with "Are you still alive?" - The multisig must respond by executing a transaction - If too many keys are lost or compromised, the fallback takes control **Key Innovation:** The module cleverly handles malicious actors who block legitimate transactions while signing liveness proofs to appear active. The solution: honest signers simply don't respond to challenges, triggering the fallback mechanism automatically. This prevents scenarios where bad actors maintain control by appearing operational while blocking real transactions.

A new liveness module introduces a simple recovery mechanism for multisigs that have lost access to keys. **How it works:** - A trusted fallback (typically another multisig with enhanced security) can issue a challenge: "Are you still alive?" - The multisig must respond by executing a transaction - If the multisig cannot respond due to lost keys, the fallback gains access to restore control **Additional security feature:** The module also addresses a subtle attack vector where malicious signers could block legitimate transactions while still signing liveness proofs to remain undetected. The solution is straightforward: honest signers simply don't respond to the challenge, triggering the fallback to take over. This design provides a practical safety net for multisig wallets while maintaining security through a trusted backup system.

A new approach to multisig wallet monitoring has emerged, moving away from tracking individual signer activity. **The Problem with Individual Tracking** - Original system flagged backup signers who rarely participated - Created unnecessary alerts for wallets that were still functional **The New Approach** - Focus shifted to overall multisig functionality rather than individual signer liveness - System now asks: "Can the multisig still function as a whole?" **How the Liveness Module Works** - A trusted fallback (typically another multisig with enhanced security) issues challenges - The multisig proves it's operational by executing a transaction - If too many keys are lost and the multisig can't respond, the fallback mechanism activates to restore access This streamlined method reduces false alarms while maintaining security oversight for multisig wallets.

Multisig wallets currently secure approximately $100 billion in crypto assets, serving as the foundation for protocol operations and treasury management across the industry. **The Critical Weakness** Despite their security benefits, multisigs face a rarely discussed vulnerability: permanent fund lockout. If enough signers lose access to their keys—through hardware destruction, forgotten PINs, or disappearance—the funds become irretrievable forever. **How Multisigs Work** - Require multiple signatures to authorize transactions (e.g., 2-of-3) - Eliminate single points of failure - Popular implementations include [Gnosis Safe](https://safe.global) and Argent - Compatible across Ethereum and EVM chains **Who Uses Them** Multisig wallets aren't exclusive to large organizations. They're increasingly adopted by: - DAOs and protocol teams - Investment funds - Individual users seeking enhanced security While multisigs provide superior security compared to single-owner wallets, teams must implement robust key management and recovery procedures to prevent catastrophic loss of access to treasury funds.

While the crypto community focuses heavily on preventing key theft, a more common problem often goes unaddressed: **lost multisig keys**. A new solution has been developed to address this overlooked vulnerability. The system aims to prevent the "quieter catastrophe" of inaccessible funds due to misplaced or forgotten keys. **Key points:** - Multisig security typically emphasizes theft prevention - Lost keys represent a significant but underreported risk - New infrastructure designed specifically for key recovery scenarios The solution provides a safety net for multisig wallet users who may lose access to their keys through various circumstances, from hardware failures to simple human error. This addresses a critical gap in crypto security infrastructure, where prevention of loss has lagged behind prevention of theft.

Jumper Earn has integrated vaults on OP Mainnet, expanding its DeFi aggregation platform. **Key Details:** - Users can now access OP Mainnet vaults through Jumper Earn's interface - The platform aggregates earning opportunities across 15 DeFi applications - Offers personalized vault and pool recommendations in a single dashboard Jumper Earn serves as a DeFi aggregator, simplifying access to yield-generating opportunities across multiple protocols and chains. The OP Mainnet integration adds another layer to its multi-chain strategy. [Learn more about Jumper Earn](https://jumper.exchange)