Blockchain Rollups

Blockchain rollups are a critical Layer-2 scaling solution designed to increase Ethereum’s transaction throughput without sacrificing decentralization or security. They work by “rolling up” or bundling numerous off-chain transactions into a single, compressed representation.

This summary is then submitted back to the Ethereum main chain (Layer -) for verification and final settlement. By processing transactions off-chain, rollups significantly reduce the burden on the main network, leading to lower gas fees and faster transactions. There are two main types: ZK-Rollups, which use zero-knowledge proofs for security, and Optimistic Rollups, which rely on fraud proofs. Rollups play a vital role in Ethereum’s scalability roadmap, opening the door to more use cases and greater mainstream adoption.

More Definitions

Zero-Knowledge Proof (ZKP)

A zero-knowledge proof is a cryptographic technique that enables one person (the prover) to convince another party (the verifier) that they are aware of a secret or truth without disclosing the real secret or any other information.

Gas Fee

A petrol price is a transaction cost in blockchain networks that users pay to execute smart contracts or perform network functions. It is represented in a cryptocurrency such as Ether by the computational resources required to perform the transaction.

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