Should hard-pen calligraphy be written online in the National Youth Cultural Heritage Competition?

No need. Official website, the National Youth Cultural Heritage Competition, shows that only the prepared hard-pen calligraphy needs to be submitted within the specified time, and there is no requirement for the creation time. The National Youth Cultural Heritage Knowledge Competition is sponsored by China Cultural Relics Protection Technology Association, and it is one of the national primary and secondary school students' competitions in the 2022-2023 school year announced by the Ministry of Education.