# getAccountInfoByBlockHash

Returns account information for a public key at a specific block, identified by block hash.

## Import

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

## Usage

```ts
const result = await rpcClient.getAccountInfoByBlockHash(
  'abc123...',
  publicKey
);

console.log(result.account.accountHash().toFormattedStr());
console.log(result.account.mainPurse);
```

## Parameters

### blockHash

- **Type:** `string`

Block hash as a hex string.

### pub

- **Type:** `PublicKey`

The public key of the account to look up.

## Return Value

`Promise<StateGetAccountInfo>`

```ts
interface StateGetAccountInfo {
  account: AccountInfo;
}
```

## Related

- [`getAccountInfo`](/actions/account/getAccountInfo)
- [`getAccountInfoByBlockHeight`](/actions/account/getAccountInfoByBlockHeight)
- [`getLatestEntity`](/actions/account/getLatestEntity)