Bulletproofs

Bulletproofs are a non-interactive zero-knowledge proof protocol designed to be short and efficient, primarily used for confidential transactions. They allow for the verification of range proofs, which prove that a committed value falls within a specific range, such as ensuring a balance is non-negative without revealing the balance.

This prevents users from creating negative balances to inflate the money supply. Because they do not require a trusted setup and have small proof sizes, they are highly practical for deployment in privacy-focused cryptocurrencies.

They are a standard tool for maintaining economic stability in private financial systems.