You could potentially list the contents of the volume snapshot\directory using the Read-NcDirectory CmdLet. EG
PS C:\> get-help Read-NcDirectory
List the contents of a directory.
Read-NcDirectory [-Path] <String> [-Attributes <FileInfo>] [-VserverContext <String>] [-Controller <NcController>] [<CommonParameters>]
Read-NcDirectory -Template [-VserverContext <String>] [-Controller <NcController>] [<CommonParameters>]
I posted an example here (for 7-mode) but the same principle applies. You'd just need to adjust the CmdLets for cDOT and the mount point of the directory (including the snapshot name) you wanted to list files in.