AD MEAH V’… Marcelino “Mashico” Abad Tolentino — who is just 4’3″ tall — is believed to be the world’s oldest person after he turned 125 on Saturday. Tolentino’s government-issued photo ID lists his year of birth as 1900, though the Guinness Book of World Records says they have not received an application to confirm him as the world’s oldest person.