sybil
How to Defend an Airdrop from Farmers
TL;DR
Add one Trust Score gate to your airdrop claim and 95% of farmed wallets are automatically excluded — no KYC, no gas overhead worth mentioning.
Key Facts
- ▸Chainalysis reports 30–70% of airdrop value goes to farmers.
- ▸TrustLayer gate is a single Solidity view call.
- ▸Recommended threshold: 300+ Trust Score for meaningful drops.
- ▸Zero PII collected from claimants.
- ▸Adds < 15k gas per claim.
Last updated
The integration
Require `ITrustLayer(0x…).getTrustScore(msg.sender) >= 300` in your claim function. Done. That single line filters out most bot farms.
Choosing a threshold
For high-value drops use 500+. For broad community drops 200+. Below 100 offers minimal protection.
Post-claim analytics
TrustLayer’s admin panel shows how many claimants passed, how many were sybils, and how much $ was saved.