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 was 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 frequently by some teachers and there were always plenty of girls in detention each week.