Railgun

Railgun is a smart contract system that lets users hide their balance and transaction details on Ethereum and some EVM-compatible networks. Instead of setting up a separate chain or bridge, it runs directly on these networks and uses zero-knowledge proofs known as zk-SNARKs. By moving their assets into a private balance (shielding), users can carry out operations such as private transfers, swaps and lending. According to DefiLlama data, the system is active on Ethereum, Arbitrum, Polygon and BNB Chain.

RAIL is the governance token issued on Ethereum. Holders who stake their RAIL take part in Railgun DAO votes on protocol parameters and treasury decisions; part of the protocol fees charged when entering and leaving the private balance is also designed to be distributed to stakers. The project additionally uses a control mechanism called Private Proofs of Innocence, which aims to limit the entry of funds from illicit sources into the private pool.

The legal treatment of privacy tools can vary from country to country. The Railgun price on Lzzo.com is based on DefiLlama's USD reference and is shown for information only.