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

# FAQ

#### How to distinguish watch wallets?

You can use \`personal\_sign\` to let the user sign an arbitrary string and verify it to determine whether the user holds the private key of the current wallet.