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D. van Dalen, J. P. Anderson, J. Quirola-Vasquez, J. Sanchez-Sierras, J. S. Bright, J. Sollerman, J. W. Tweddle, K. C. Chambers, K. W. Smith, L. Cotter, L. Galbany, L. Izzo, L. Rhodes, M. De Pasquale, M. E. Huber, M. E. Ravasio, M. Fraser, M. Gromadzki, M. Nicholl, N. Sarin, N. Tanvir, P. G. Jonker, P. Jakobsson, P. Mazalli, P. Minguez, P. T. O'Brien, R. A. J. Eyles-Ferris, S. Campana, S. J. Smartt, S. Kobayashi, S. Schulze, S. Yang, T. de Boer, T. E. Muller-Bravo, T. Lowe, T.-W. Chen, V. D'Elia, Y. Julakanti","submitted_at":"2026-06-04T14:23:59Z","abstract_excerpt":"With the advent of the Einstein Probe (EP) mission, we are entering a new era in the study of gamma-ray bursts (GRBs), enabling the detection of faint, low-luminosity transients that would previously have gone undetected. EP250304a was an event discovered by EP associated with the broad-lined type Ic supernova (SN) SN 2025fhm located at z = 0.2. 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