# FAQ

- [SPA Tokenomics](/faq/spa-tokenomics.md): Token distribution schedule, details of tokens held by the foundation and community treasury
- [xSPA token](/faq/xspa-token.md): xSPA is a reward token of the Sperax ecosystem. xSPA can be either staked for veSPA with a lockup of 180 days or more, or redeemed within 15 to 180 days giving 50% to 100% SPA upon redemption.
- [Smart Contract Addresses](/faq/smart-contract-addresses.md)
- [How to Transfer SPA from Ethereum to Arbitrum](/faq/how-to-transfer-spa-from-ethereum-to-arbitrum.md)