A computer program product includes computer readable program code embodied on a computer readable storage medium. The computer program product comprises computer readable program code for beginning a print job on a three-dimensional printer to manufacture an object, computer readable program code for pausing the print job while the object is incomplete, computer readable program code for determining the state of the print job when the print job was paused, and computer readable program code for printing information onto the incomplete object, wherein the information includes an identification of the print job. The information preferably takes the form of a matrix barcode printed on a surface of the incomplete object that will later be overwritten.