> For the complete documentation index, see [llms.txt](https://ontactprotocol-team.gitbook.io/ontactprotocol_en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ontactprotocol-team.gitbook.io/ontactprotocol_en/ontact-protocol-solution.md).

# Ontact Protocol Solution

- [The Concept of Development](https://ontactprotocol-team.gitbook.io/ontactprotocol_en/ontact-protocol-solution/the-concept-of-development.md)
- [Decentralized Personal Authentication and Data Management](https://ontactprotocol-team.gitbook.io/ontactprotocol_en/ontact-protocol-solution/decentralized-personal-authentication-and-data-management.md)