> For the complete documentation index, see [llms.txt](https://help.tokenpocket.pro/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/en/wallet-operation/what-is-profit-and-loss.md).

# About Protocol

- [About Nostr](https://help.tokenpocket.pro/en/wallet-operation/what-is-profit-and-loss/nostr.md)
- [EIP-7702 Introduction](https://help.tokenpocket.pro/en/wallet-operation/what-is-profit-and-loss/eip7702.md): What is EIP-7702?
- [EIP-7702 Upgrade Tutorial](https://help.tokenpocket.pro/en/wallet-operation/what-is-profit-and-loss/eip7702-upgrade.md): Manage Your EIP-7702 Smart Wallet.
- [What is 7702 Smart Authorization](https://help.tokenpocket.pro/en/wallet-operation/what-is-profit-and-loss/what-is-7702-smart-authorization.md): It allows you to set limited permissions for a DApp, such as usable assets, spending limits, and time range. The DApp can only perform actions within the authorized rules.