Bolivian claims he's 123

Could this be the world's oldest person? Carmelo Flores Laura lives high in the Bolivian mountains, chews coca leaves, cooks on open fires and says he's 123 years old.
Flores Laura was born on July 16, 1890, according to his government identification card. Bolivia's Electoral Tribunal confirmed his identity and his age.
According to the Guinness World Records, the world's oldest person whose age could be verified was a French woman, Jeanne Calment, who died in 1997 at the age of 122. The official world's oldest man is a 112 year-old Spaniard living in New York.