> For the complete documentation index, see [llms.txt](https://shai-deshe.gitbook.io/understanding-blockdags-and-ghostdag/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://shai-deshe.gitbook.io/understanding-blockdags-and-ghostdag/introduction.md).

# Introduction