# PartialBlockIdentifier
When fetching data by BlockIdentifier, it may be possible to only specify the index or hash. If neither property is specified, it is assumed that the client is making a request at the current block.
## Example Usage
```typescript
import { PartialBlockIdentifier } from "icpmcp-rosetta-api";
let value: PartialBlockIdentifier = {
index: 1123941,
hash: "0x1f2cc6c5027d2f201a5453ad1119574d2aed23a392654742ac3c78783c071f85",
};
```
## Fields
| Field | Type | Required | Description | Example |
| ------------------------------------------------------------------ | ------------------------------------------------------------------ | ------------------------------------------------------------------ | ------------------------------------------------------------------ | ------------------------------------------------------------------ |
| `index` | *number* | :heavy_minus_sign: | N/A | 1123941 |
| `hash` | *string* | :heavy_minus_sign: | N/A | 0x1f2cc6c5027d2f201a5453ad1119574d2aed23a392654742ac3c78783c071f85 |
