What is a rollup in blockchain technology?
A rollup is a layer 2 scaling solution that processes transactions off-chain and then submits them to the main blockchain.
How do rollups improve scalability?
Rollups bundle multiple transactions into a single one, reducing the load on the main chain and increasing throughput.
Are there different types of rollups?
Yes, there are two main types: optimistic rollups and zk-rollups, each with its own mechanisms for validating transactions.
What are the advantages of using rollups?
Rollups can significantly lower transaction fees, increase speed, and enhance privacy while maintaining security.
Can you give examples of projects using rollups?
Sure! Projects like Optimism and Arbitrum are popular examples of optimistic rollups, while zkSync is a well-known zk-rollup.
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