# Assets Asset entities are used primarily in Apache Usergrid to manage binary data objects such as images, video, and audio content. However, an asset does not have to be used for a binary object. For example, assets can be used to model a file system. Property Type Description -------------- -------- --------------------------------------------------------------------------------- uuid UUID Asset’s unique entity ID type string "asset" name string Asset name (mandatory) created long [UNIX timestamp](http://en.wikipedia.org/wiki/Unix_time) of entity creation modified long [UNIX timestamp](http://en.wikipedia.org/wiki/Unix_time) of entity modification owner UUID UUID of the asset’s owner (mandatory) path string Relative path to the asset (mandatory) content-type string Content type of the asset (for example, “image/jpeg”)