In the Web3 space, airdrops have always been an important incentive for user engagement. However, with technological advancements, simple interactions are no longer the only criteria for receiving airdrops.

I used to think that participating in Airdrops only required frequent interactions, waiting for snapshots, competing for rankings, and claiming rewards. To this end, I created a large number of alternate accounts, performing various operations on the chain every day, sometimes even interacting multiple times with the same project. I mistakenly believed that this was a reflection of hard work.

However, when I looked at the snapshot list of a certain project, I found that my wallet address was excluded from the Airdrop list due to failing to meet the behavioral quality standards. This left me utterly confused.

After investigation, I found that this is the work of Lagrange. As the 'on-chain credit evaluator' behind many projects, Lagrange not only focuses on the number of interactions but also assesses the authenticity, sustainability, and whether there is speculative behavior in the interactions.

The functions of Lagrange include:
1. Query the user's interaction history using SQL statements, including time range, specific contracts, and number of interactions.
2. Utilize zero-knowledge proof technology to ensure that the data originates from the blockchain, guaranteeing its authenticity.
3. Provide the basis for distributing execution rewards or excluding users for the project.
4. The entire process ensures 'trustless and tamper-proof'.

Under Lagrange's evaluation criteria, many common "wool-pulling" behaviors are regarded as negative factors:
- A wallet interaction period that is too short will be defined as short-term speculators.
- If the liquidity provision time is less than 7 days, it will be regarded as a non-true user.
- Lack of governance participation, holdings, and proposals will also affect the score.

This new on-chain identity verification mechanism is reshaping the Airdrop ecosystem, prompting users to focus more on long-term participation and genuine interaction rather than simple short-term operations. For Web3 participants, understanding and adapting to this change will become increasingly important.