# uuid

### Description

`uuid` returns a UUID v4, which is a random, and for practical purposes unique id that looks like `74686f72-6265-4e73-b465-66616e202020`.

For more information about UUIDs please consult the relevant [wikipedia](https://en.wikipedia.org/wiki/Universally_unique_identifier) article.

### Example

```
uuid()
```

Writing this in a calculated information rule will return a random UUID. Since the uuid is random, every time this is used the result will be different, but it will look structurally like `74686f72-6265-4e73-b465-66616e202020`.