# identifierType

> The identifier type of the referenced object, represented as an integer.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.7/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public int identifierType { get; }
```

### Remarks

`{i}` is the identifier type represented by one of the following integers:

0 = Null 1 = Imported asset 2 = Scene object 3 = Source asset 4 = Built-in asset

The `identifierType` constitutes the `{i}` element in the string representation of a `GlobalObjectId`, the format of which is:

`GlobalObjectId_V1-{i}-{a}-{l}-{p}`