The Neutrino index is a [decentralized financial (DeFi)](https://coinmarketcap.com/alexandria/glossary/defi) platform based on the Waves blockchain. The platform rebranded its index token from USDN to [XTN](https://www.coinlive.com/coin/neutrino-usd). Neutrino has two native tokens, XTN and NSBT.
XTN is an algorithmic crypto-collateralized indexcoin backed by three Waves Ecosystem tokens: [WAVES](https://www.coinlive.com/coin/waves), [WX](https://www.coinlive.com/coin/waves-exchange-token) and [VIRES](https://www.coinlive.com/coin/vires-finance). XTN's main function is to encourage user participation in the Neutrino by rewarding those who provide liquidity to the system.
The platform’s other token, NSBT (Neutrino System Base Token), is used for governance purposes: it allows users to make decisions about the future development of the Neutrino protocol, and it ensures the stability of collateral reserves on Neutrino’s smart contract.
New NSBT tokens are issued whenever a user locks WAVES tokens on a contract, which serves as additional backing and insures the system against a deficit. Holders can stake to earn on WAVES to XTN swap fees.