You can retrieve metadata about a file stored in a particular CloudContainer by using the metadata API endpoint. This endpoint is available at:
https://app.cloudcontainer.cc/api/container/{your-resource-id}/meta
This will return a JSON object with metadata about the file stored in CloudContainer at the given resource ID. The BFCC_ContainerMeta() custom function will assemble this URL for you with the API key attached for you to use in an Insert From URL script step. The lastModified timestamp will be in the timezone set in your CloudContainer account preferences.
Example Response:
{
"success": true,
"name": "my-cool-image.gif",
"size": 27165,
"lastModified": "2020-05-21 18:11:39",
"mimeType": "image/gif"
}