# queryBalanceByBlockHash

Returns the CSPR balance at a specific block, identified by hash.

## Import

```ts
import { RpcClient, HttpHandler } from 'casper-js-sdk';
```

## Usage

```ts
const result = await rpcClient.queryBalanceByBlockHash(
  'abc123...',
  { mainPurseUnderPublicKey: publicKey.toHex() }
);

console.log(result.balance.toString());
```

## Parameters

### hash

- **Type:** `string`

Block hash as hex string.

### identifier

- **Type:** `PurseIdentifier`

Which purse to query. Same options as [`queryLatestBalance`](/actions/balance/queryLatestBalance).

## Return Value

`Promise<QueryBalanceResult>`

## Related

- [`queryLatestBalance`](/actions/balance/queryLatestBalance)
- [`queryBalanceByBlockHeight`](/actions/balance/queryBalanceByBlockHeight)