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  "identifier" : "/documentation/ARKit/Anchor",
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# Anchor

The identity, location, and orientation of an object in world space.

```
protocol Anchor : CustomStringConvertible, Identifiable, Sendable
```

## Topics

### Inspecting an anchor

[`id`](/documentation/ARKit/Anchor/id)

A unique identifier that distinguishes this anchor from all other anchors.

[`timestamp`](/documentation/ARKit/Anchor/timestamp)

[`originFromAnchorTransform`](/documentation/ARKit/Anchor/originFromAnchorTransform)

The position and orientation of this anchor in world space.

### Tracking anchors over time

[`AnchorUpdate`](/documentation/ARKit/AnchorUpdate)

Information about the event that updated an anchor.

[`AnchorUpdateSequence`](/documentation/ARKit/AnchorUpdateSequence)

An asynchronous sequence of updates to anchors.


---

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