> For the complete documentation index, see [llms.txt](https://standard-crypto.gitbook.io/zkstats/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://standard-crypto.gitbook.io/zkstats/projects/risczero.md).

# RiscZero

### Overview

RiscZero is a [zkVM](https://dev.risczero.com/api/zkvm/) that can be used for a variety of different use cases, including fraud proof verification for optimistic rollups and coprocessors. RiscZero works by verifying the execution of Rust programs using STARKs that are converted to SNARKs and verified on Ethereum. The RiscZero Dune query can be found [here](https://dune.com/queries/4149868).

### Query Structure

The query filters traces sent to the RiscZeroVerifierRouter [contract](https://etherscan.io/address/0x8eab2d97dfce405a1692a21b3ff3a172d593d319) that invoke verify.

### Calculations

* The proof volume is the number of traces that invoke verify
* The cost is calculated using the following formula: 
  * $$\text{cost} = \sum\_{\text{traces}} \left( \text{gas\_used} \times \text{gas\_price} \times \text{eth\_price} \right)$$
  * Where:
    * $$\text{gas\_used}$$ is the amount of gas consumed by a trace in one of the verifiers
    * $$\text{gas\_price}$$ is the price of gas on the day of the transaction
    * $$\text{eth\_price}$$ is the average price of ETH in USD on the day of the transaction


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## 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, and the optional `goal` query parameter:

```
GET https://standard-crypto.gitbook.io/zkstats/projects/risczero.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

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.