High-fiber sourdough bread recipe

Name: High-fiber sourdough bread recipe
Prep time: 15 h
Cook time: 50 min
Total time: 15 h 50 min
Cuisine: American
Ingredients: 33g whole wheat flour; 33g white flour (about 11.5% protein; all-purpose flour); 66g water; 7g ripe sourdough starter, 100% hydration; 57g rolled oats; 25g sesame seeds (black or white); 25g pumpkin seeds (pepitas); 16g sunflower seeds (roasted and unsalted); 16g flaxseeds; 16g chia seeds; 179g water; 82g whole wheat flour; 328g whole milk; 459g whole wheat flour; 213g white flour; 354g water; 16g fine sea salt; All the levain; All the soaker; All the tangzhong