📐 Blockchain industry | Layer 2 networks
· Key point: Rollups are currently the most popular Layer 2 solution, and are divided into two types: Optimistic Rollups and ZK Rollups.
· How it works: Layer 2 security primarily relies on the Ethereum mainnet: data and results are posted to the mainnet. This is the main difference from sidechains.
· Practical tip: Before transferring assets from Layer 2 back to the mainnet, check whether you’re using the official bridge or a third-party cross-chain bridge. Transfer times and risks differ.
$ARB 0.1501(-8.48%)

DYOR, and trade rationally.