Two validation tests for confirming the planetary nature of the transits. Panel a shows the phased long-cadence, flattened light curves of TOI-1807 obtained with different photometric apertures (2-pixel in red, 3-pixel in black, and 4-pixel in blue). The mean transit depth (δ_tr, in parts-per-thousand, ppt) is the same in all the cases within the errors. Panel b shows the normalized position X/Y folded with the period found for TOI-1807 b. No particular features correspond to the transit events.