6009 20240329112528.0 10.1007/s11207-023-02136-3 DOI SCART-2023-0001 Clette, F. Re-calibration of the Sunspot Number: Status Report 2023 arXiv eprint 2301.02084 STCE Lefèvre, L. Chatzistergos, T. Hayakawa, H. Carrasco, V. M. Arlt, R. Cliver, E. W. Dudok de Wit, T. Friedli, T. Karachik, N. Kopp, G. Lockwood, M. Mathieu, S. Muñoz-Jaramillo, A. Owens, M. Pesnell, D. Pevtsov, A. Svalgaard, L. Usoskin, I. G. van Driel-Gesztelyi, L. Vaquero, J. M. Solar Physics 298 3 44 frederic.clette@observatoire.be https://link.springer.com/article/10.1007/s11207-023-02136-3 arXiv eprint :2301.02084 published in REFERD