BAGPIPES fits of galaxy models to mock DCBH data. The red squares represent the best-fitting galaxy model, based on the red model galaxy spectrum, to the photometric fluxes of M_DCBH = 5 × 10⁵ M_⊙ DCBH model (black circles with mock error bars) from Pacucci et al. (2016). Red triangles indicate filters where the mock DCBH fluxes fall below the PEARLS detection limits of the NEP field. The estimated errors on the fitted redshift, total stellar mass, and dust attenuation of the galactic fit are indicated by the sliders to the left of each plot. Top: Example where a z_DCBH = 6 spectrum is fitted by a dusty galaxy model at a similar redshift (z ≈ 5.62). Bottom: Example where a z_DCBH = 12 spectrum is fitted by a dusty galaxy model at a significantly lower redshift (z ≈ 3.94).