Detailed explanation of ZK-based Layer2 on-chain interactions

The huge wealth effect brought by the Arbitrum airdrop has made the community users who received it crazy, and also made the users who missed it upset, so they began to look for the next unissued project, hoping to be eligible for the next airdrop. Of the four former layer2 kings: only two have not announced airdrops. The market weight of Optimism and Arbitrum in the Layer2 ecosystem is already obvious. With the arrival of Layer2 summer, zkSync, Starknet and Scroll, which are unissued projects in the same track of Layer2, are naturally expected. This article will focus on sorting out each L2 interaction process and explain the steps in detail, looking forward to the prosperity of industry users when L2 Summer arrives.

scroll interactive tutorial

1. First, get the Ethereum Goerli test network token ETH.

goerlifaucet.com/

goerli-faucet.pk910.de

Please note that generally an account can only receive 0.1 TETH within 24 hours.

However, due to the influence of Arbitrum airdrop, a large number of users choose to interact with addresses on many test networks, resulting in tight faucet quotas. However, Layerzero launched testnetbridge to solve the problem of limited TETH quotas. You can convert mainnet ETH into TETH at the following URL:

https://testnetbridge.com/

2. After receiving the test tokens, go to the Scroll official website and add Scroll Testnnetwork to Metamask

https://scroll.io/alpha

After adding, use the Scroll official cross-chain bridge to cross the TETH of the ETH Goerli test network to the Scroll Testnetwork

After crossing to Scroll, choose Uniswap which has been integrated into Scroll for interaction including swap and liquidity staking

The token contract query address on Scroll Uniswap is: blockscout.scroll.io/tokens

(1) Swap can conduct multiple exchanges every day to increase the number of interactions

(2) Liquidity staking requires several attempts due to the Scroll test network being slow.

zksync ERA interactive tutorial

After the Zksync era mainnet was launched on March 24, the tokens previously received from the faucet could only be used to interact with the Lite testnet. Currently, era interaction requires connecting to the zksync mainnet and using official or third-party bridges for cross-chain interaction.

https://portal.zksync.io/bridge

After the cross-chain is completed, you can access syncswap for regular interactions. Of course, you can also choose to interact on other DAPPs, or you can choose to mint related NFTs on the official website to achieve interaction.

https://testnet.nexon.finance/

Of course, you can also choose to interact on the lending protocol, but Nexon has not yet been deployed on the zksync era mainnet, so if you want to interact, you still need to use TETH test tokens.

Starknet Interactions

1. First of all, due to account abstraction and the fact that Starknet itself is ZKVM written by Cario, it is necessary to install the ArgentX plug-in wallet. However, considering the centralization problem of ArgentX, it is recommended to interact in small batches.

ArgentX wallet needs to be added to the extension in the Google store and set your own wallet password (it is recommended to create your own wallet and try not to import other wallet mnemonics or private keys into ArgentX)

2. After creating an ArgentX wallet, transfer ETH through the Starknet official cross-chain bridge

https://starkgate.starknet.io/, complete the interaction by visiting different types of Dapps, mainly completing Defi swap and liquidity staking. You can also choose to purchase NFTs to complete the interaction. Take 10kswap as an example below.

Of course, there are many types of Pool staking pools, and the gameplay of different Swaps is also different. Users can interact with different Defi applications according to their own circumstances. The main purpose is to obtain the ecological incentives of the project to the community. At the same time, users should also note that the number of interactions has increased sharply, and the speed of network transfer or transaction processing is relatively slow. Each transaction may even be delayed to 20-30 minutes. If it is transferred from L2 to L1 main network, it will take even longer.

Summarize

Although simple and crude airdrops can cause user enthusiasm and market heat to soar in the short term, truly high-quality projects have long understood that simple airdrops do not help the project grow substantially. We do not know whether airdrops will be replaced, but the incentive policies for early seed users and the long-term planning and healthy development of the project are the cornerstone and foundation for building a good web3. In the web3 industry, where financial attributes are gradually strengthened and advantages are prominent, we hope that airdrops will attract users, but users will stay for a long time to build together for the unique charm of the project.