Scoop out the interior of the bottom half of bread. Spread Hoemmade Olive Salad along bottom layer of bread. Layer 1/3 of mortadella, 1/3 of salami, 1/3 of capicola, and 1/3 of provolone. Repeat layers, and top with remaining Homemade Olive Salad; cover with top half of bread. Wrap in aluminum foil, and place between two heavy cutting boards. Place a heavy weight on top, and press firmly to flatten. Refrigerate at least 3 hours. Unwrap, and cut into 8 pieces.