Hard X-ray luminosity vs redshift for various hard X-ray selected samples. eRASS1 AGN are shown as blue circles, eRASS1 hard-only AGN are shown as orange squares, Swift BAT AGN from the 70 month catalogue are shown as pink x, and the eFEDS hard sample are shown as green triangles. The flux limit of HEAO-1 is shown as a black dashed line. Sources outside LS10 with spec-z are shown as black crosses.