Rollups are used to improve the scalability of the Ethereum network.
The two rollup strategies will boost Ethereum’s scalability dramatically.
The recent surge in NFTs and decentralized finance has once again exposed the Ethereum blockchain network’s scalability, sustainability, and cost-effectiveness issues. Much is riding on the next Merge update, which will be released on September 19th.
There are still numerous questions regarding the true breadth of this upgrade, particularly its impact on network scalability, which is projected to reap little advantages at first. Currently, Ethereum can process roughly 15 transactions per second, compared to 24,000 for Visa and 50,000 for Solana. Clearly, as creator Buterin has acknowledged, this is a severe issue for the network and its users.
Rollups are expected to boost transactions per second, making network usage considerably simpler and less expensive.
Ethereum rollups combine numerous transactions into a single block, making the network significantly quicker.
They are classified into two types: optimistic rollups and zero-knowledge rollups.
As a result, rollups significantly minimize transaction costs. They also accelerate things: the rollup is incredibly quick to perform, and the Ethereum blockchain only has to process one transaction rather than several.
Rollups are a hybrid layer 2 blockchain that has the advantage of scaling down the network’s challenges with little or no adjustments required, and notably without losing what is most important: security. As a result, they are now regarded as the greatest method for rapidly and safely improving the scalability of the Ethereum blockchain.
The primary distinctions between the two rollups
To ensure that the transactions are accurate, there are two sorts of proofs for the two types of rollups: fraud proofs for optimistic rollups and validity proofs for ZK rollups.
Optimistic rollups imply that the data included in a single block is legitimate and that no one is attempting to deceive the blockchain by concealing transactions inside the rollups. Optimistic rollups must provide consumers enough time to complete so-called fraud proofing (1 to 2 weeks).
Arbitrum, which is yet to release a token, and Optimism, which launched a token on June 1st of this year, are the two biggest ORs.
Zero-knowledge rollups (zk rollups) are based on a cryptographic technique known as zero-knowledge proof, which enables someone to mathematically show that a statement is true. According to a research recently given by consulting company 21Shares, this constitutes the true difference from optimistic rollups and may be the most essential innovation to increase Ethereum’s scalability.
Zero-knowledge rollups, as contrast to optimistic rollups, may have compatibility difficulties with Ethereum’s EVM. Furthermore, ZK rollups have much larger computing needs than optimistic ones.
According to some estimations, the combination of these two rollups might soon propel Ethereum to a transaction rate of 100,000 per second.