---
title: id
framework: arkit
role: symbol
role_heading: Instance Property
path: arkit/referenceobject/id-swift.property
---

# id

The unique identifier of this reference object.

## Declaration

```swift
var id: UUID { get }
```

## See Also

### Inspecting a reference object

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