> For the complete documentation index, see [llms.txt](https://docs.otterspace.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.otterspace.xyz/overview/key-concepts/expiration.md).

# Expiration

Otterspace Badges can be set to expire. Effectively, this means that a Badge can still be present in someone’s wallet while being inactive. In these cases, the Badge should no longer act as a key to access the resource.

You can check whether a Badge is expired by looking at the `expiresAt` date in the Badge spec metadata. All Badges minted from the same spec have the same expiration date.