The zkSync 1.0 Mainnet is the older version of zkSync that has been running live since 2020. Interacting with it now could still qualify you as an early adopter for the zkSync 2.0 Airdrop, which is what we are looking for.
zkSync Era Block Explorer provides all the information to deep dive into transactions, blocks, contracts, and much more. Deep dive into zkSync Era and explore the network.
When reviewing an airdrop, there are several factors to consider. First, the likelihood the project will even do an airdrop in the first place. Then, to look at how many tokens the project intends to allocate towards airdrop campaigns, as well as the difficulty in participating in their airdrop. It is also important to look at the utility of the token so that there will be an actual use and purpose in participating in the airdrop in the first place. Finally, a factor to consider when reviewing an airdrop is whether the airdropped tokens are subject to any lockup period.