---
title: ReferenceObject.ID
framework: arkit
role: symbol
role_heading: Type Alias
path: arkit/referenceobject/id-swift.typealias
---

# ReferenceObject.ID

A type representing the stable identity of the entity associated with an instance.

## Declaration

```swift
typealias ID = UUID
```

## See Also

### Inspecting a reference object

- [id](arkit/referenceobject/id-swift.property.md)
- [inputFile](arkit/referenceobject/inputfile.md)
- [usdzFile](arkit/referenceobject/usdzfile.md)
- [name](arkit/referenceobject/name.md)
- [description](arkit/referenceobject/description.md)