The product’s traceability is guaranteed by trademarks and codes imprinted on the ham, complete with the “trotter”, a distinctive mark of San Daniele DOP. The logo consists of the stylized image of a ham, with the initials SD in the middle surrounded by the words Prosciutto di San Daniele in a circle; the manufacturer's identification number is an integral part of the trademark. The identifying marks are: an identification stamp for the farm of production and an identification stamp for the slaughter house (alphanumeric initials); a stamp with the start date for ageing including the day, month and year (D.O.T. symbol); a final brand stamp with the manufacturer's numerical identification code.