Quick Answer: A 12-line Python heuristic caught 94% of Sybil wallets in our testnet airdrop before we spent $0.01 on tokens. The trick? Behavioral entropy analysis on RPC call patterns — not wallet age, not balance thresholds. Cost to run: $0.68/hr on an RTX 4090.
TL;DR: We processed 847K wallet interactions through our Confidential Agent pipeline. Flagged 23,400 Sybil clusters in 4.2 hours. False positive rate: 6.3%. Our anti-bot layer ran inside an Intel TDX enclave — the RPC logs never touched disk unencrypted.
The 12-Line Anti-Bot Trick That Saved Our Airdrop Snapshot
Farmers aren't stupid. They rotate IPs, age wallets for 6 months, drip funds through Tornado Cash. Your "must hold 0.1 ETH" rule? They scale that with 10,000 wallets.
I spent three days reading Discord threads from airdrop hunters. Found the pattern they can't fake: behavioral entropy.
