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

# CONCEPTS

- [nTokens](https://new.num.finance/concepts/ntokens.md)
- [Product structure](https://new.num.finance/concepts/product-structure.md)
- [How it works?](https://new.num.finance/concepts/how-it-works.md)