Grilled Artichokes with Salsa Verde

Name: Grilled Artichokes with Salsa Verde
Ingredients: 4 large artichokes (about 3-1/2 lb.); 2 large lemons, cut in half, plus 2 Tbs. fresh lemon juice; 1/2 cup lightly packed fresh flat-leaf parsley leaves; 15 fresh chives (about 6 inches long); 2 Tbs. fresh oregano leaves; 4 oil-packed anchovies, patted dry and minced; 2 medium cloves garlic, minced; 1/2 tsp. sweet paprika; 1/4 tsp. crushed red pepper flakes; 1/2 cup extra-virgin olive oil; 2 Tbs. red wine vinegar; Kosher salt and freshly ground black pepper; Canola oil for the grill