# guid

> A GUID that represents the file being referenced. This GUID might be used to locate default editor resources, but generally pathName is used to identify externally referenced files.

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor.Build.Content](/engine/6000.5/script-reference/unityeditor/build/content.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public GUID guid { get; }
```