> 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/protocol-and-security.md).

# Protocol and Security

- [SAT20 Protocol Stack](https://docs.sat20.org/english/protocol-and-security/protocol.md)
- [Indexer](https://docs.sat20.org/english/protocol-and-security/indexer.md)
- [Asset Issuance Protocols](https://docs.sat20.org/english/protocol-and-security/indexer/asset-issuance.md)
- [STP](https://docs.sat20.org/english/protocol-and-security/stp.md)
- [STP Technical Whitepaper](https://docs.sat20.org/english/protocol-and-security/stp/stp.md)
- [STP Messages and Data Model](https://docs.sat20.org/english/protocol-and-security/stp/messages-and-data-model.md)
- [STP Message Sequences](https://docs.sat20.org/english/protocol-and-security/stp/message-sequences.md)
- [Third-Party STP Client Integration Guide](https://docs.sat20.org/english/protocol-and-security/stp/client-integration.md)
- [Third-Party STP Client Implementation Checklist](https://docs.sat20.org/english/protocol-and-security/stp/implementation-checklist.md)
- [SatoshiNet](https://docs.sat20.org/english/protocol-and-security/satoshinet.md)
- [SatoshiNet Protocol Overview](https://docs.sat20.org/english/protocol-and-security/satoshinet/satoshinet.md)
- [DKVS](https://docs.sat20.org/english/protocol-and-security/dkvs.md)
- [Channel Contracts](https://docs.sat20.org/english/protocol-and-security/channel-contracts.md)
- [Channel Contracts](https://docs.sat20.org/english/protocol-and-security/channel-contracts/channel-contracts.md)
- [Smart Contracts](https://docs.sat20.org/english/protocol-and-security/smart-contracts.md)
- [Smart Contract Protocol](https://docs.sat20.org/english/protocol-and-security/smart-contracts/contracts.md)
- [Template Contracts](https://docs.sat20.org/english/protocol-and-security/smart-contracts/template.md)
- [Natural Language Contracts](https://docs.sat20.org/english/protocol-and-security/smart-contracts/agent.md)
- [EVM Contracts](https://docs.sat20.org/english/protocol-and-security/smart-contracts/evm.md)
- [Security](https://docs.sat20.org/english/protocol-and-security/security.md)
- [Threat Model and Trust Assumptions](https://docs.sat20.org/english/protocol-and-security/security/threat-model.md)