The situation was similar at my school. Detentions were recorded and a slip was issued which had to be signed by a parent. The number of detentions were listed on your report . I still have a report listing one detention that year.
Canings were listed in the punishment book , though not on your report. I doubt whether any records were made of slipperings. Detentions were given out quite fequently by some teachers and there was always plenty of girls in detention each week.