ChainIDE topic discussion #3 Arbitrum

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BACKGROUND：
The vote for UniSwap V3 to be deployed to the second-layer Ethereum network Arbitrum has received overwhelming support, and Arbitrum has also opened the mainnet to developers on May 28. Let’s learn about Arbitrum while the iron is hot.

The most precious resource on the Ethereum network is gas, and the gas of each block has an upper limit, and the average block generation time is also fixed, so the calculation steps that can be performed per unit time are limited. At present, DeFi transactions are prevalent. When a large number of people need to make transactions, especially complex transactions, Ethereum will be congested, and there will be high gas fees, which will undoubtedly discourage many users. The layer 2 solution offers drastically higher transaction throughput than Ethereum, and gas fees that are up to 270 times lower.

As a result, the Ethereum community has proposed various expansion plans. Arbitrum is one of the solutions. It is built on Ethereum. It uses the communication capabilities between L1 and L2 to theoretically transfer any form of Ethereum assets without trust. Transfer between the first and second layers. It is worth noting that although Arbitrum transactions are still carried out on Ethereum, since Arbitrum only submits raw transaction data to Ethereum, execution and contract storage take place off-chain, so compared to the Ethereum main network, Arbitrum costs GAS fee is very small. Arbitrum uses multiple rounds of interactive agreements to resolve disputes, subdividing large-scale disputes into small disputes until the most critical step is found, and then using the Ethereum contract to determine whether it is correct.

Arbitrum has three modes, namely AnyTrust channels, AnyTrust side chain and Arbitrum Rollup. Among them, Arbitrum Rollup is a Rollup system running on Ethereum, which optimizes general smart contracts for high security, high throughput, and strong anti-censorship capabilities. (TIPS: rollup, as the name implies, is to roll up a bunch of transactions into a rollup transaction. After all nodes receive the rollup transaction, they will not execute the rolled up logic, but only accept the execution results of these logics. So the gas required for this rollup exchange will be much less than the gas required to execute these transactions.)

Discussions:

What impact does Arbitrum have on the Ethereum community, and what are its advantages?

What do you know about Arbitrum rollup?

Do you know any expansion plans for Ethereum?

Further reading：

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