  We report a study of the magnetization reversals and skyrmion configurations
in two systems - Pt/Co/MgO and Ir/Fe/Co/Pt multilayers, where magnetic
skyrmions are stabilized by a combination of dipolar and Dzyaloshinskii-Moriya
interactions (DMI). First Order Reversal Curve (FORC) diagrams of low-DMI
Pt/Co/MgO and high-DMI Ir/Fe/Co/Pt exhibit stark differences, which are
identified by micromagnetic simulations to be indicative of hybrid and pure
N\'eel skyrmions, respectively. Tracking the evolution of FORC features in
multilayers with dipolar interactions and DMI, we find that the negative FORC
valley, typically accompanying the positive FORC peak near saturation,
disappears under both reduced dipolar interactions and enhanced DMI. As these
conditions favor the formation of pure Neel skyrmions, we propose that the
resultant FORC feature - a single positive FORC peak near saturation - can act
as a fingerprint for pure N\'eel skyrmions in multilayers. Our study thus
expands on the utility of FORC analysis as a tool for characterizing spin
topology in multilayer thin films.
