Offchain Labs launches Arbitrum bold on testnet

Offchain Labs, the company building the Arbitrum ecosystem, has launched Arbitrum BOLD on testnet.

Limited liquidity delays or braveis a dispute protocol with interactive proof of fraud for optimistic rollups that can be used across the Arbitrum chain. Marking them in bold helps users run validator nodes and facilitate the network’s consensus process. It also implements defenses against delay attacks or cybersecurity threats, where malicious actors intentionally delay the normal functioning of a system by disrupting data flow.

“bold guarantees a fixed upper bound on Arbitrum state checks on Ethereum and allows a single well-resourced party to defend its claims against many adversaries without having to play 1v1,” Offchain Labs wrote. Monday statement.

Arbitrum is one of the most popular Ethereum Layer 2 networks based on the number of active wallets, The Block previously reported. Offchain Labs raised $120 million in funding led by Lightspeed Venture Partners in August 2021.

Reasoning for the bold text

“Currently, verification on Arbitrum One and Nova via proof-of-fraud is permitted as the dispute protocol is vulnerable to denial-of-service attacks,” Offchain Labs wrote when introducing bold in August 2023. “A malicious validator can spend funds repeatedly to prevent assertions. Since they are not confirmed, withdrawals from L2 to L1 are delayed for as long as desired.”

“We have invented a new approach to verification that provides a fixed upper limit of 7 days of additional delay for confirmations without suffering from delay attacks. Our protocol, called Bold, allows for permissionless and secure verification of the Arbitrum chain, allowing it to move up multiple levels. “There is a ladder of decentralization,” the company added. “This approach allows a single, honest validator to win disputes against multiple adversaries on Ethereum.”

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