---
title: getBlockCommitment
hideTableOfContents: true
h1: getBlockCommitment RPC Method
---

Returns commitment for particular block

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### 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

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### Code sample

```shell
curl https://api.devnet.solana.com -s -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
}
```

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