Is the anonymous painted map of the world, dated c. 1506 in the Bavarian State Library, also known as the "Four Finger" world chart, or as the Kunstmann II, authored by Amerigo Vespucci? The map was a privately-held, highly illuminated painted world map. Its execution implies a map-maker with access to up-to-date Spanish and Portuguese geographic knowledge, and who had likely travelled to the new world. This paper explores the evidence for attributing the authorship of the map to Amerigo Vespucci and asks if digital cartography can further resolve this question.