Abdul Halim, A.Abreu, P.Aglietta, M.Allekotte, I.Allison, P.Almeida Cheminant, K.Almela, A.Alvarez-Muñiz, J.Ammerman Yebra, J.Anastasi, G.A.Anchordoqui, L.Andrada, B.Andringa, S.Aramo, C.Araújo Ferreira, P.R.Arnone, E.Arteaga Velázquez, J.C.Asorey, H.Assis, P.Ave, M.et al.2023-08-092023-08-092023Astrophysical Journal Supplement Series, 2023; 264(2):50-1-50-240067-00491538-4365https://hdl.handle.net/2440/139122A catalog containing details of the highest-energy cosmic rays recorded through the detection of extensive air showers at the Pierre Auger Observatory is presented with the aim of opening the data to detailed examination. Descriptions of the 100 showers created by the highest-energy particles recorded between 2004 January 1 and 2020 December 31 are given for cosmic rays that have energies in the range 78–166 EeV. Details are also given on a further nine very energetic events that have been used in the calibration procedure adopted to determine the energy of each primary. A sky plot of the arrival directions of the most energetic particles is shown. No interpretations of the data are offered.en© 2023. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.Journal article10.3847/1538-4365/aca5372023-08-03629661Abdul Halim, A. [0000-0003-1218-1737]Bellido, J.A. [0000-0002-0833-9194]Clay, R.W. [0000-0002-9040-9648]Dawson, B.R. [0000-0002-4271-3055]Harvey, V.M. [0000-0001-9090-8415]Manning, B.C. [0000-0002-2715-4478]