> For the complete documentation index, see [llms.txt](https://nftsbattle.gitbook.io/nfts-battle-or-en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nftsbattle.gitbook.io/nfts-battle-or-en/help/common-problem.md).

# Common Problem

- [What is "NFT"?](https://nftsbattle.gitbook.io/nfts-battle-or-en/help/common-problem/whats-an-nft.md)