Correct. This is known as "right reading emulsion down." Your scanner may, however, want them emulsion up. My Epson 4490 is like that.
If you develop your own (unlikely with E-6), the emulsion is inside the curl. From a commercial lab, they may come back flat or indeed wound the other way, so you can't tell.
WANTED: Fujimoto/Lucky 70M negative carrier
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Contax IIa + Leica IIIf + M3 (project) + Zorki-1 (project) + Fuji GS645 + FED-2 + Vitomatic II + Revue 400SE + more + still more