Arne Schamitt, a German pianist, shows the busker certificate he received from the Lianhua Subdistrict Office in Futian District on Saturday. He was one of 78 artists awarded the certificates allowing them to perform at the square near Civic Center in Futian CBD. He has performed in more than 300 cities worldwide, including Hong Kong and Guangzhou. He said the government-issued certificate gives him a sense of security and he will stay in Shenzhen for a longer time.   (Story on P3)Zhao Xinming