Hi Nemanja,

Here is a link to the REST API for RM.
https://jazz.net/wiki/bin/view/Main/RRCReportableRestAPI

See  the example for Filter by modification date:
https://server:port/rm/publish/[artifact_format]?modifiedSince=yyyy-MM-dd'T'HH:mm:ss.SSS'Z'

Hopefully, this gets you what you need.

Be mindful of the date specified, as this could potentially execute a long running query if you provide a date where the query result returns a large number of records.


Hello
Another option is to use the Tracked Resource Set; this is a bit more low-level that the reportable REST API.  I don't know what you're trying to achieve, but you can take a look at the specs and see if it suits. 

In the next release of DNG (6.0.1) you can use the TRS 2.0 API to do this for both Configuration Management opt-in and opt-out projects.  The DNG TRS URI can be discovered via /rootservices.

cheers

http://open-services.net/wiki/core/TrackedResourceSet-2.0/