Contour plots of the 68% and 95% credible regions for all the free parameters in ℋ₁ model. Plotting ranges are the same as the prior ranges. Dashed lines indicate zero values in the ideal case. Two different colours correspond to the two sets of results from KV450 and Planck cosmological values. The slight degeneracy between δ_zi, s in the low redshift bins is an effect from the high degeneracy between A_IA, s and δ_zi, s. It vanishes in the test setting 𝒯₁, where A_IA, s is fixed to zero.