# Protocol

### [System Token](/infrablockchain-docs/infrablockchain/learn/protocol/system-token.md)

All enterprises and public institutions using ***InfraBlockchain*** can issue a stable token backed by legal currency, known as the **system token**. This document covers the overall content regarding the system token, which plays an important role in the operation and consensus of InfraBlockchain.

### [Transaction Fee Model](/infrablockchain-docs/infrablockchain/learn/protocol/transaction-fee.md)

InfraBlockchain uses a token based on legal currency as a transaction fee. This document covers the overall content regarding InfraBlockchain's unique **transaction fee model**.

### [Proof of Transaction (PoT)](/infrablockchain-docs/infrablockchain/learn/protocol/proof-of-transaction.md)

This document covers the overall content regarding **Proof of Transaction (PoT)**, InfraBlockchain's unique consensus mechanism.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.infrablockchain.net/infrablockchain-docs/infrablockchain/learn/protocol.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.