I have a fren named Xiaoming, who is an old player in the digital asset field. In the past, he used to watch the price movement of Bitcoin every day and suffered quite a few losses.

One day, Xiao Ming suddenly said to me: "I'm no longer staring at the price all day, now I'm browsing data."

I'm a bit confused: "Data scraping? Have you started doing big data analysis?"

Xiao Ming explained: "It's not that kind of data, I am currently shaping my on-chain persona."

What does this mean? In simple terms, it means leaving some digital footprints on the blockchain through various operations that can prove one's identity and actions. For example:

• Conducting transactions on layer two networks can demonstrate your acceptance of new technologies.
• Use cross-chain bridges to transfer assets between different blockchains, showcasing your multi-chain operational capabilities.
• Participating in staking, lending, or providing liquidity are all verifiable on-chain activities.

These actions will be recorded on the blockchain, forming your "on-chain resume".

But the question is, how to make others believe in the authenticity of this resume?

This is where a tool called Lagrange, used by Xiao Ming, comes into play. He told me:

"Using Lagrange, my on-chain behavior can be converted into a verifiable zero-knowledge proof data. Others just need to click once to confirm that I am a real user, not a bot."

I just realized that participating in airdrop events has evolved to this extent!

Xiao Ming's specific operation method is as follows:

1. Interact across multiple blockchain networks to experience various protocols.
2. Use Lagrange to generate the "state proof" of these actions.
3. Use these proofs to participate in the airdrop whitelist for new projects.
4. Some projects may even purchase this data to verify quality users.
5. This is like an on-chain resume that continuously appreciates, upgrades, authorizes, and monetizes.

And what about me? I'm still spending time researching how to analyze price movement. It seems that in the Web3 world, creating one's own on-chain identity has become a new way to play and a competitive edge.