Additionally, in China, "forgery" does not hold the same nefarious connotation as it does in Western culture. What would be considered illegal forgery in the United States is not necessarily as criminal in China. Actions he took to fall under the Western definition of forgery include aging work with electric hairdryers, and creating fake provenance with his collection of seals that he could use to mark past "owners" of the work. To further this provenance, his friend Puru would provide a colophon authenticating the work's imperial origins.