If you got those from a comment on the main site, NO they are for the first respin (Peppermint-7-20161129) with the installer that crashes for a small number of people.
These are the SHA256 checksums for the fixed re-released spin (Peppermint-7-20161201)
To be clear -
If you already have the system installed it doesn't matter which ISO version you used .. the re-release only fixed a bug that affected the Ubiquity installer (which is removed post installation anyway), so if you installed with the earlier ISO and the installation finished without crashing there's absolutely no need to reinstall with the new ISO
Any future installations would best be done with the re-release (20161201) ISO, just to be sure you don't bump into the installer crash issue at all.