I think every normal NTFS file entry is technically a hardlink. If you create a second hardlink to some data, both hardlinks are "equal" and neither is special or "the real file" compared to the other one.
The OS does let you see a count of how many hardlinks each file has, where it's 1 for most file and will be 2 or more if additional hardlinks have been created. There are shell extensions which will add a column showing that information, but I don't think we have anything built into Opus to show it, unfortunately.
(For other types of links, such as softlinks and junctions, which are indirect pointers to other things, we do provide columns that will identify them as a different Type and show the Targets they point to.)