> For the complete documentation index, see [llms.txt](https://docs.sat20.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sat20.org/english/learn-understanding-satoshinet.md).

# Learn: Understanding SatoshiNet

- [Overview](https://docs.sat20.org/english/learn-understanding-satoshinet/learn.md)
- [Why Bitcoin Needs a Native Extension Network](https://docs.sat20.org/english/learn-understanding-satoshinet/bitcoin-native.md)
- [Asset Safety Model](https://docs.sat20.org/english/learn-understanding-satoshinet/security-model.md)
- [Indexer: Bitcoin Asset Fact Layer](https://docs.sat20.org/english/learn-understanding-satoshinet/indexer.md)
- [STP Introduction](https://docs.sat20.org/english/learn-understanding-satoshinet/stp.md)
- [Smart Contracts and GAS](https://docs.sat20.org/english/learn-understanding-satoshinet/smart-contracts-and-gas.md)
- [AI Agents and User Asset Control](https://docs.sat20.org/english/learn-understanding-satoshinet/ai-agent.md)