Observed multi-band light curves of SN 2023ldh. Top panel: Blown-up view of the light curve containing the two main brightening episodes: Event A and Event B. Vertical thin grey lines mark the epochs of the spectroscopic observations. Bottom panel: Light curves of SN 2023ldh in a limited number of filters, spanning a period of about nine years. Johnson-Bessell data are in Vega magnitude scale, while Sloan and ATLAS data are in AB magnitude scale. The phases are computed from the time of the r-band Event B maximum (MJD = 60237.0 ± 0.4).