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

# about pin

- [Design Philosophy](https://docs.publicindex.network/about-pin/design-philosophy.md): What makes PIN special?
- [Features](https://docs.publicindex.network/about-pin/features.md): The nuts and bolts
- [History](https://docs.publicindex.network/about-pin/history.md): PIN is one of the oldest cryptocurrencies
- [Timeline](https://docs.publicindex.network/about-pin/history/timeline.md): In March 2021 the FLO Blockchain was rebranded to the Public Index Network - PIN
- [Applications and Projects](https://docs.publicindex.network/about-pin/applications-and-projects.md): Check out who is building on PIN!
- [Streambed Media](https://docs.publicindex.network/about-pin/applications-and-projects/streambed-media.md)
- [Alexandria](https://docs.publicindex.network/about-pin/applications-and-projects/alexandria.md)
- [Medici Land](https://docs.publicindex.network/about-pin/applications-and-projects/medici-land.md)
- [FLOCard](https://docs.publicindex.network/about-pin/applications-and-projects/ranchimall.md)
- [RanchiMall](https://docs.publicindex.network/about-pin/applications-and-projects/ranchimall-2.md)
- [Flotorizer](https://docs.publicindex.network/about-pin/applications-and-projects/flotorizer.md)
- [Shared Secret](https://docs.publicindex.network/about-pin/applications-and-projects/shared-secret.md)
- [Caltech ETDB](https://docs.publicindex.network/about-pin/applications-and-projects/caltech-etdb.md)
- [The PIN Team](https://docs.publicindex.network/about-pin/the-pin-team.md): Meet the PIN Team.