Arbitrum Blockchain is a scaling solution designed to make the Ethereum network faster and cheaper to use. It functions as an optimistic rollup, processing transactions off the main Ethereum chain and then posting compressed transaction data back to Ethereum. This method significantly reduces transaction costs and increases throughput compared to direct operations on the Ethereum mainnet. The system employs fraud proofs, allowing a challenge period for anyone to dispute an invalid state transition before it is finalized on Ethereum.
Context
Arbitrum remains a leading Layer 2 solution for decentralized finance and non-fungible tokens, attracting significant developer and user activity. Ongoing discussions frequently center on its decentralization roadmap, including the evolution of its governance structure and the eventual removal of training wheels. The platform’s ability to maintain competitive transaction costs and high security while competing with other scaling technologies constitutes a key area of industry observation.
A critical vulnerability in UXLINK's multi-signature wallet allowed attackers to seize control, drain assets, and mint new tokens, posing severe systemic risk to the protocol.
A reentrancy vulnerability, introduced during a prior patch, allowed an attacker to manipulate price oracle logic and drain $42 million from GMX V1 liquidity pools.
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