jakiro
Author: Todd Source: X, @0x_Todd
Judging from the current results, after the gas fee on the Ethereum L1 main network dropped to a 5-year low, many projects felt that it was not impossible to deploy in L1, so many people would ask, what core problems are currently solving in L2?
There is an ancient topic called the Impossible Triangle of Blockchain. In Vitalik’s explanation, it is only possible to choose two of [security], [decentralization] and [scalability].
Returning to the essence of technology, this is the problem that L2 should solve:
First, the status summary is placed on L1 and maintained by the main network [Security];
Second, try to maintain [decentralization] on the sorter;
Finally, [Extensibility] is implemented as cleverly as possible by L2 off-chain.
Different L2 solutions have their own advantages, and everyone is familiar with the OP series Rollup and the ZK series Rollup.Today I want to talk about something different, such as Based-Rollup.
The Based L2 solution was also the earliest proposed by God V, and L2, for example, Taiko has been promoting the Based Rollup idea.
PS: Note that it is based, which has nothing to do with Coinbase’s Base, Base is also from the OP system.
As we all know, a standard OP system, the sorter has great power. It can determine whose transaction is ahead and whose transaction is behind. Even if you don’t do evil, you can make profits through MEV.This is also why, for example, Metis proposed to develop a decentralized sorter.
Different L2s also have different treatment plans for MEVs: For example, Arb advocates fair treatment of MEVs (strictly following the first and then come), while OP encourages them, believing that MEVs are free market behavior, so they are taxed on MEVs.But no matter what, the L2 sorter has a great status.
So Based-Rollup chose to swing the knife to the sorter – its concept is to directly let ETH L1 sort, so as to limit the power of the L2 sorter.
Quote a picture in the @taikoxyz document:
As you can see, it is a three-step walk:
In the first step, the L2 searcher packages the L2 transaction and sends it to the L2 block Builder;
The second step is to build the block by L2 block Builder;
In the third step, L1 searchers include the L2 blocks in the block they built in L1.
And here the L1 searcher and L2 builder can be the same person.
This is another clever idea of ”working two jobs”. In fact, the equipment performance of L1 searchers is redundant, and there is no pressure to build an extra Taiko L2 block.
Let me give you an inappropriate metaphor. If the ETH and L2 metaphor are a relationship between provinces and cities, then Based Rollup’s idea is: let the mayor (L2 builder) serve as the vice governor (L1 searcher), so that the resources of L1 are used to protect the safety of L2.
Taiko has been going from TGE to now for a full year, and Token Unlock has started right away, so Taiko has also been planning a new idea over the past year called Based Booster Rollup/BBR.
Booster Rollup can also be used as a mirror for L1, and that idea is also very interesting, but due to limited space, the next article of the analysis of Booster Rollup will be expanded.
