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Rollups Incomplete Rollup Guide
, clearly pointed out that "Rollups is a powerful Layer 2 expansion paradigm, and it is expected to become the key expansion solution of Ethereum and the cornerstone of Ethereum expansion in the short to medium term."
The Loopring protocol, which has recently skyrocketed and attracted attention in the secondary market, is a type of Rollups——ZK rollup. As a leader in Layer 2 solutions, expansion attempts represented by Loopring are likely to be developed in the future of Ethereum. play an extremely important role.The increasingly congested Ethereum network, the imminent Layer2On January 4, 2020, Ethereum finally broke through the $1,000 mark again after a lapse of three years. At the same time, the Gas Price (Gwei) also rose, reaching 500 at one point (the highest breaking through 600), setting a new record since the UNI airdrop. new high.If you do not often operate on the chain, you may not have a particularly strong perception of this. Here is a more intuitive data:In fact, Vitalik also tweeted specifically about the status quo of soaring handling fees, saying that the transaction fee income in the income structure of Ethereum miners has been soaring compared with block rewards, which may threaten the security of Ethereum. Proposals (such as EIP 1559) can solve this problem.” However, the EIP 1559 proposal proposed by V God in 2018 has been repeated, and there has been no news of its implementation.
Therefore, when the network congestion becomes an imminent stumbling block after a long wait, the project parties actually have to choose another way and turn their attention to the possible solution paths of Layer 2 - Plasma, Sidechain, State Channels, Opitmistic rollups, ZK rollup, Vadium, It is the current six main technical solutions of the Layer-2 layer.
However, unlike Plasma (sharding), Sidechain (sidechain), and State Channels (state channel), which are known to everyone in the old Layer 2 direction, Rollups technology (Opitmistic rollup, ZK rollup) is a new game that has just sprung up in 2020. Tao, and quickly became the most promising Ethereum Layer 2 expansion solution currently recognized.
Outstanding Rollup SolutionVitalik stated in the "Rollups Incomplete Summary Guide" that Rollups, unlike previous Layer 2 attempts, can support common EVM codes, allowing existing applications to be easily migrated. Although it is still an early technology, it is developing rapidly , some of which (notably Loopring, ZKSync, and DeversiFi) have been running for several months.
In fact, since last year, Vitalik’s twitter has begun to appear intensively on the Twitter of Rollup. On October 10, 2020, he directly posted the "Ethereum Roadmap Centered on Rollup", calling for the immediate promotion of the infrastructure construction of ETH 1 To support Rollups and establish it as the key to development in the short to medium term.
At present, the Rollup solution has indeed stood out among a large number of expansion projects, and has gradually become the most innovative and dynamic section in the Ethereum ecosystem. So what exactly is Rollup? What are the differences and advantages?
According to different forms of verification data security, it can be divided into Opitmistic rollup and ZK rollup. The former uses fraud proof (mechanism design), and the latter uses zero-knowledge proof ZK Rollup (technical guarantee). Currently, these two Rollup technologies are also The most secure Layer-2 path.
Among them, the biggest advantage of Optimistic rollup lies in its general computing. Compared with the specific application bottleneck (payment, transaction) of ZK Rollup, almost anything that can be realized in Ethereum can be equally realized on Optimistic Rollups, which naturally includes The composability of smart contracts such as DeFi is precisely why complex DeFi protocols such as Synthetix consider using the Optimistic rollups solution to build their exchanges.
V God's point of view is also clear: in the short term, Optimistic rollup has the opportunity to win multi-purpose EVM computing, and ZKrollup is expected to be better at the simple payment level, transaction platform, and other application-specific use cases. However, in the medium and long term, ZK rollup will win in all use cases with the improvement of ZK-SNARK technology.Who will formulate the industry's Layer 2 standardsAfter a year of active publicity by V God, Rollup has basically undertaken the mission of Ethereum expansion in the short to medium term. Of course, even when Rollup is not yet popular and Ethereum is so congested, there are more and more people and applications on Ethereum, forming a typical "Matthew effect":
The popularity of DeFi and related ecology remains high, but those "Ethereum killers" who once advertised with differentiated competition such as low handling fees, seem extremely lonely.Moreover, Uniswap and Synthetix, the current leaders in DeFi, are about to complete their new products based on Rollup. With their promotion, Layer 2 is expected to form a fixed industry standard this year and clear the way for the further development of Ethereum. expansion pressure.Among them, in terms of OP rollup, the Optimism team launched the first phase of the Optimism testnet on September 25, 2020. Synthetix specially provided 200,000 SNX as a test reward, and is considering gradually migrating to Optimism. Not surprisingly, this month Its corresponding new products will be unveiled in the middle of the year.Uniswap is also said to have chosen Optimism as its solution for transaction throughput, and the V3 version to be released this year is also a new two-layer transaction network built on this basis.
