import {
  DocBlock,
  DocSideBySide,
  CodeParams,
  Parameter,
  Field,
  Values,
  CodeSnippets,
} from "../../../components/CodeDocBlock";

<DocBlock>

## getBlockCommitment

Returns commitment for particular block

<DocSideBySide>

<CodeParams>

### Parameters:

<Parameter type={"u64"} required={true}>
  block number, identified by Slot
</Parameter>

### Result:

The result field will be a JSON object containing:

- `commitment` - commitment, comprising either:
  - `<null>` - Unknown block
  - `<array>` - commitment, array of u64 integers logging the amount of cluster stake in lamports that has voted on the block at each depth from 0 to `MAX_LOCKOUT_HISTORY` + 1
- `totalStake` - total active stake, in lamports, of the current epoch

</CodeParams>

<CodeSnippets>

### Code sample:

```bash
curl http://localhost:8899 -X POST -H "Content-Type: application/json" -d '
  {
    "jsonrpc": "2.0", "id": 1,
    "method": "getBlockCommitment",
    "params":[5]
  }
'
```

### Response:

```json
{
  "jsonrpc": "2.0",
  "result": {
    "commitment": [
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 10, 32
    ],
    "totalStake": 42
  },
  "id": 1
}
```

</CodeSnippets>
</DocSideBySide>
</DocBlock>
