What does the attribute copy on the painting tube mean?

A copy on a painting tube refers to a piece of paper hanging on the top or side of a picture scroll in ancient China, which contains the author's name, title, creation time and other information, similar to modern calligraphy inscriptions. The word "copying genealogy" originated from "copying genealogy" and gradually evolved into information written on the scroll. The function of copying houses is to protect the picture scroll and provide relevant materials for appreciation and collection. In ancient times, scrolls were very precious works of art, so copying was also an indispensable part of scroll making. Property copying is generally written by the painter himself or his disciples, and some famous property copying has also become an important cultural relic collected by future generations.