I am an iOS developer. In one of my application, I need to make modified by, created by and checkoutto user's information along with the document/list item information from SharePoint server through REST API call. But if I change the column name "Modified By"(default) by some other value "WHO MODIFIED", my API call fails.
Example : /_vti_bin/ListData.svc/?$expand=CreatedBy,ModifiedBy,CheckedOutTo
Is there a way to know what is the new title for those column values through a small REST or SOAP API call?