Top panel: the CoRoT light curve LRc01_E1_0331, filtered from cosmic rays (Sect. 3.1.a), containing simulated transits of a super-Earth with an orbital period of 9.8 days. The red arrow indicates the jump produced by a hot pixel and correctly identified by our pipeline. Middle panel: high- and low-pass filtered light curve after steps b), c), and d). Planetary transits by the super-Earth are not visible to the naked eye. Other artificial dips are produced by undetected small discontinuities. Bottom panel: light curve after removal of data points in the vicinity of the identified discontinuity (Sect. 3.1.e).