> For the complete documentation index, see [llms.txt](https://corpus-core.gitbook.io/specification-colibri-stateless/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://corpus-core.gitbook.io/specification-colibri-stateless/developer-guide/bindings/cli/colibri-prover.md).

# colibri-prover

The colibri-prover command is used to create proofs for a given method and parameters. It works without any backend.

```sh
    # Create a proof for the eth_getBlockByNumber method
    colibri-prover -o block_proof.ssz eth_getBlockByNumber latest false
```

## Options

| Option     | Argument        | Description                                                   | Default       |
| ---------- | --------------- | ------------------------------------------------------------- | ------------- |
| `-c`       | `<chain_id>`    | Selected chain                                                | `MAINNET` (1) |
| `-t`       | `<testname>`    | Generates test files in `test/data/<testname>`                |               |
| `-x`       | `<cachedir>`    | Caches all requests in the cache directory                    |               |
| `-o`       | `<outputfile>`  | SSZ file with the proof                                       | `stdout`      |
| `-d`       | `<chain_store>` | Use `chain_data` from the `chain_store` found within the path |               |
| `-i`       |                 | Include code in the proof                                     |               |
| `<method>` |                 | The method to execute                                         |               |
| `<params>` |                 | Parameters for the method                                     |               |

## c4\_print\_version

[cli/prover.c](https://github.com/corpus-core/colibri-stateless/blob/v1.1.30/src/cli/prover.c#L97)

Main entry point for the colibri-prover CLI tool. Parses command-line arguments, creates a prover context, and executes the proof generation.

```c
int main(int argc, char* argv[]) {
  // Check for --version or -v flag
  if (argc >= 2 && (strcmp(argv[1], "--version") == 0 || strcmp(argv[1], "-v") == 0)) {
    c4_print_version(stdout, "colibri-prover");
```

**Parameters**

* **`argc`** : Number of command-line arguments
* **`argv`** : Array of command-line argument strings

**Returns**

EXIT\_SUCCESS on success, EXIT\_FAILURE on error


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