Talk about Rollup

On the one hand, Rollup reduces the consumption of resources on the chain, and on the other hand, it can maintain the availability of data. That is, the Ethereum main network can view and ensure that no one can tamper with off-chain transactions. Therefore, it can improve scalability while inheriting the decentralization and security of Ethereum, and has become the mainstream technical solution for Layer 2.

It mainly has two ideas: ZK Rollup (Zero Knowledge Rollup) and OP Rollup (Optimistic Rollup)