The "Infinite Money" Glitch
The biggest fear in any privacy protocol is an Inflation Bug. Since transactions are hidden, how do we know someone isn't secretly printing tokens and draining the pool?
In Lambda, solvency is not verified by looking at balances (which are hidden). It is verified by Mathematical Invariance.
1. The Anti-Double Spend: Nullifiers
As explained in ZK Architecture, every proof contains a unique Nullifier.
- Rule: Every unique Gift generates exactly one unique Nullifier.
- Check: The smart contract tracks every used Nullifier mapping.
- Enforcement: If you try to claim the same gift twice, the contract sees the Nullifier is
trueand reverts.
2. The Merkle Invariance
Lambda uses a Merkle Tree to store all deposits. The Solvency Equation is simple and public:
Total Deposits = Total Claims + Current TVL
Anyone can audit the lambda.sol contract on the Monad explorer. Because the contract logic is immutable, no admin can "tweak" the numbers.
3. Trusted Setup & Circuit Logic
We use Groth16, which requires a "Trusted Setup."
- We used the standard Perpetual Powers of Tau.
- This ensures that no "Toxic Waste" (backdoor keys) exists.
Conclusion: Trust Code, Not Humans
Privacy requires a higher standard of security. That is why we built Lambda on proven primitives (Poseidon, Groth16) rather than experimental cryptography.
We don't ask you to trust the team. We ask you to verify the contract, check the Nullifiers, and trust the math.
This concludes the Protocol Series. You can review the full Architecture or explore the Ecosystem.
