Marinated Antipasti Bruschetta

Name: Marinated Antipasti Bruschetta
Ingredients: 2 1/2 cups mixed olives, pitted and chopped; 2 cups (1 pint) grape tomatoes, quartered; One 13.76-ounce can artichoke hearts packed in water, chopped; 8 ounces fresh mozzarella, diced; 1/2 cup olive oil, plus more for brushing; 2 tablespoons lemon juice, plus 1/2 teaspoon lemon zest; 2 tablespoons black truffle oil, plus more for drizzling, if desired; 4 pepperoncini peppers, sliced in rounds; 1 tablespoon pepperoncini liquid; 1 clove garlic, minced; Kosher salt and black pepper; 1 Italian loaf, sliced on an angle in 1/4-inch slices (about 24 slices); 12 slices prosciutto, cut in half; 2 tablespoons fresh basil chiffonade