This is the date of registration of the "Jeunesse Sportive de Kabylie" published in the Official Journal of the Republic French, in the section Declaration of Associations, 78th year, No. 196, dated Thursday 2, page 7348: Declaration of the Sports Youth Association of Kabylie Archived 13 December 2022 at the Wayback Machine. His Fédération française de Football Association membership number was No. 8153. On the other hand, you should know that a founding general meeting of the club was held well before, on 24 May 1946, at the time of its creation. The club's supporters prefer to favor this date rather than that of affiliation to the FFFA.
This is the date published in the bulletin of the Fédération Française de Football Association, under the heading Mouvements des Sociétés.