Who gave the invisible seal of calligraphy?

Gu Guangsheng. Calligraphy is an ancient art of writing Chinese characters. In 2022, the intangible seal of this art was awarded by Gu Guangsheng, an intangible founder and people's artist of contemporary calligraphy. His calligraphy has reached a superb level, vigorous and passionate, and is deeply loved by the masses.