The Great Buddha of Nara, a 15-meter-high statue listed among Japan's national treasures, has only 492 spiraling curls of hair on its bronze head, not the 966 locks described in ancient documents, new research indicates.

The discovery was made via a 3-D analysis of the statue's head using a laser scanning method, conducted by Takeshi Oishi, associate professor at the University of Tokyo's Institute of Industrial Science, the temple in Nara where the statue is housed said Thursday on its website.

Todaiji temple asked Oishi to undertake the research because it kept receiving inquiries about the number of curls, known as "rahotsu," on the Buddha's head, with some visitors saying it seems the statue has many fewer curls than the number described in scrolls dating back nearly 1,000 years.