---
title: MPMediaEntityPropertyPersistentID
framework: mediaplayer
role: symbol
role_heading: Global Variable
path: mediaplayer/mpmediaentitypropertypersistentid
---

# MPMediaEntityPropertyPersistentID

The persistent identifier for a media entity.

## Declaration

```swift
let MPMediaEntityPropertyPersistentID: String
```

## Discussion

Discussion This value contains a uint64_t (unsigned long long) which you can use to build a media property predicate, as described in MPMediaPropertyPredicate.