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

# Concepts

- [State in Ethereum](https://zchains.gitbook.io/zchains-whitepaper/concepts/ethereum-state.md)