> For the complete documentation index, see [llms.txt](https://docs.sperax.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sperax.io/faq.md).

# FAQ

- [SPA Tokenomics](https://docs.sperax.io/faq/spa-tokenomics.md): Token distribution schedule, details of tokens held by the foundation and community treasury
- [xSPA token](https://docs.sperax.io/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](https://docs.sperax.io/faq/smart-contract-addresses.md)
- [How to Transfer SPA from Ethereum to Arbitrum](https://docs.sperax.io/faq/how-to-transfer-spa-from-ethereum-to-arbitrum.md)
- [Deprecated functions](https://docs.sperax.io/faq/deprecated-functions.md): These functions were active on earlier stages of Sperax ecosystem development. Though they are not active now, we keep relevant information available.
- [\[Deprecated\] Transfer SPA to Ethereum from Arbitrum](https://docs.sperax.io/faq/deprecated-functions/deprecated-transfer-spa-to-ethereum-from-arbitrum.md)
- [\[Deprecated\] Transfer SPA to Arbitrum from Ethereum](https://docs.sperax.io/faq/deprecated-functions/deprecated-transfer-spa-to-arbitrum-from-ethereum.md)
- [\[Deprecated\] Sperax Gauge](https://docs.sperax.io/faq/deprecated-functions/deprecated-sperax-gauge.md)
- [How does it work?](https://docs.sperax.io/faq/deprecated-functions/deprecated-sperax-gauge/how-does-it-work.md)
- [Technical Specifications](https://docs.sperax.io/faq/deprecated-functions/deprecated-sperax-gauge/technical-specifications.md)