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PayProof

Privacy-preserving payroll

Private Airdrops

Coming Soon

Encrypted Eligibility & Distribution

Compute eligibility scores and allocations over encrypted inputs, revealing only what each claimer needs to know—eligibility status, tier level, or exact allocation at claim time.

Private Scoring

Eligibility criteria and scoring logic remain encrypted. Users prove they qualify without revealing the exact rules.

Sybil Resistance

Combine FHE with ZK proofs (Semaphore, MACI-style) for privacy-preserving identity verification and gas-efficient claims.

Why Private Airdrops?

Traditional public airdrops leak eligibility criteria, making them vulnerable to gaming and sybil attacks. Once the rules are known, bad actors can create wallets to farm rewards.

Existing ZK airdrop solutions help, but often still expose criteria publicly or require complex trusted setup ceremonies. Our approach combines the best of both worlds: FHE for private scoring over encrypted criteria, plus ZK proofs (Semaphore/MACI-style) for sybil-resistant identity verification.

The result? You can distribute tokens fairly without revealing your eligibility formula, protect against gaming, and keep gas costs low with efficient claim verification—all powered by Zama's fhEVM.