Alongside each file is a separate file with metadata about it. The file is the standard JSON file format.
Metadata files have the same name as the original but with the .json extension.
The follow properties are available:
| Key | Value | Comments |
|---|---|---|
| contenttype | the MIME content type of the file. | |
| date | date the original object was created | ISO 8601 format (YYYY-MM-DD) |
| download | URL of the original download | required if downloaded |
| download_page | HTML page with a link to download the file. Often needed if the original website prevents hotlinking. | optional |
| duration | Elapsed time of an audio or video file. | In seconds (rounded up) |
| extension | the last part of the file name, after the period (.) | required |
| md5sum | required | |
| rights | The copyright/release status of the file | Possible values: publicdomain |
| size | in bytes (decimal) | required |
| source | Name of the original creator of the file | |
| source_url | URL of the original creator of the file | |
| title | Short title for the file | |
| wikipedia | URL to relevant Wikipedia article |
Metadata files have the same name as the original with the .json extension added onto the end.
The follow properties are available:
| Key | Value | Comments |
|---|---|---|
| md5sum | required | |
| size | in bytes (decimal) | required |
The Digital Rosetta Stone