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

# Learn Concepts

- [Accounts](https://docs.opentothepublic.org/docs/learn-concepts/accounts.md)
- [Attestations](https://docs.opentothepublic.org/docs/learn-concepts/attestations.md)
- [Projects, Proposals, Milestones, and Contributions](https://docs.opentothepublic.org/docs/learn-concepts/projects-proposals-milestones-and-contributions.md)
- [Apps](https://docs.opentothepublic.org/docs/learn-concepts/apps.md)