Is Jin Xin a calligrapher?

Sort of. It's just a name, nothing particularly famous.

Jin Xin [explanation] 1. Metaphor is a beautiful literary thinking. 2. Novel works.

A calligrapher named Fu was born in Boxing County, Binzhou City, Shandong Province on April 1955.

There is a company called Dongyang Jin Xin Calligraphy Training Co., Ltd.

There are also some calligraphers who prefer to write beautiful calligraphy works like jade.