Cumulative flux distribution of the resolved unidentified sources. Solid line, Sample 1; dotted line, sample 2; dashed line, sample 3. The thin solid lines represent the location of the median value of sample 1 for fluxes below ﹩6\times 10^{-8}\ \mathrm{photons}\,\ \mathrm{cm}\,^{-2}\ \mathrm{s}\,^{-1}﹩. The vertical lines correspond to the lowest flux to which we can extrapolate a power‐law fit to the cumulative flux function of each sample in the flux range ﹩F_{8,\mathrm{max}\,}< F_{8}< F_{8,N=5}﹩, before the cumulative emission from unresolved point sources exceeds the measurement of the EGRB at low energies. The light gray vertical line shows the lowest flux to which we can perform the same extrapolation if the flux function of sample 1 combined with identified blazars outside our mask is used instead.