The present invention provides novel systems and methods for processing packages through a delivery network using a hub assist label. The digital signature is derived from an electronic message possessed first by the sender before the receiver. A wobble signal is detected by an optical pickup and demodulated by an address decoding circuit. The securing device further includes an engaging rod pressed against the press member, and having one end that is connected pivotally to the second seat and the other end removably engaged with the first seat for securing the central processing unit to the board body. For example, the user can change the one or more enhancement parameters while viewing the original and enhanced images to determine an effect the change has on the enhanced image.