What does a batch in a rollup solution consist of?

Question: What does a batch in a rollup solution consist of?

A batch in a rollup solution is a collection of transactions that are processed together by a validator. A rollup solution is a layer 2 scaling technique that aims to reduce the load on the main blockchain by moving some computations off-chain. A validator is a node that verifies the validity of the transactions in a batch and submits a proof to the main chain.

There are two types of rollup solutions: optimistic rollups and zero-knowledge rollups. Optimistic rollups rely on fraud proofs to ensure security, while zero-knowledge rollups use cryptographic proofs to guarantee correctness. Both types of rollups have their own advantages and disadvantages, such as speed, cost, and complexity.

In this blog post, we will explore how batches work in both optimistic and zero-knowledge rollups, and what are the challenges and opportunities for scaling Ethereum with rollup solutions.

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