Braised Chicken Thighs with Marinated Artichokes

Name: Braised Chicken Thighs with Marinated Artichokes
Ingredients: 8 skin-on, bone-in chicken thighs (3 3/4 pounds); Sea salt and pepper (see Note); 1 tablespoon extra-virgin olive oil; 15 ounces marinated artichoke hearts, plus 1/4 cup brine from the jar; 1 cup Castelvetrano olives; 1 head of garlic, halved crosswise; 1 lemon, thinly sliced; 6 thyme sprigs; 1 cup chicken stock or low-sodium broth; 1/2 cup semidry sherry, such as amontillado; 1 tablespoon Asian fish sauce