# getEntityByBlockHash

Returns an addressable entity (account or smart contract) at a specific block, identified by block hash. This is the Casper 2.x equivalent of `getAccountInfo`.

## Import

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

## Usage

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

console.log(result.entity);
```

## Parameters

### entityIdentifier

- **Type:** `EntityIdentifier`

Identifies the entity to look up. One of:

```ts
type EntityIdentifier =
  | { publicKey: string }         // public key hex
  | { accountHash: string }       // 'account-hash-abc...'
  | { entityAddr: string }        // 'entity-account-abc...'
```

### hash

- **Type:** `string`

Block hash as a hex string.

## Return Value

`Promise<StateGetEntityResult>`

```ts
interface StateGetEntityResult {
  entity: AddressableEntity | LegacyAccount;
}
```

## Related

- [`getLatestEntity`](/actions/account/getLatestEntity)
- [`getEntityByBlockHeight`](/actions/account/getEntityByBlockHeight)
- [`getAccountInfoByBlockHash`](/actions/account/getAccountInfoByBlockHash)