"The art world".

“Authenticity is the soul of the object,” says Chinese works of art expert Nicolas Chow, adding “Anything that is worth something is worth being faked.” In Episode 1, see how Chow and other Sotheby’s specialists identify the true originals. Sometimes consulting an artist’s catalogue raisonné is enough to affirm authenticity, but other pieces require sleuthing for clues that only a seasoned expert would think to sniff out.