Unless an artist specifically lists hi-res on their page, the formats on Bandcamp are pretty standard: 44.1kHz FLAC, AIFF, ALAC, WAV, etc. For example, Future of Forestry has a separate page for the hi-res version of their album "Awakened to the Sound" at
https://futureofforestry.bandcamp.com/. Since Jessica Curry does not have such an offering for "So Let Us Melt," only the standard formats are available.
I wish it was that simple, but it isn't. Take Austin Wintory for example: some of his albums are available as hi-res downloads (mainly the latests), but some are available with standard quality, and absolutely nothing enables you to know that before you buy them.
So my question remains until someone do buy Curry's latest work and check it out. I know for sure Dear Esther is only available as a standard format (44,1 kHz), but who knows for this one ?