QuantumSpace, an AI start-up focused on computer vision and visual intelligence, says graph technology is opening up a new front in the endless fight against one of the art market's worst problems: fraud. In practical terms, that means a knowledge graph representing thousands of artworks, with billions of nodes detailing the complex relationships its algorithms have identified between them. A $60 billion market with a billion-dollar problemRocchi and Salafia operate in a high-risk, highly specialized field: the global fine-art market. Mapping the artist's mindRocchi dreamt up the technology that became QuantumSpace while a graduate student in London. The galerist's viewQuantumSpace says its art archive now holds details of 68,000 paintings, across which it has generated roughly 3.5 billion individual data points.