Preheat your smoker or oven to 225°F (107°C).
Remove the silver skin membrane from the back of the pork ribs using a paper towel for grip.
In a small bowl, combine the smoked paprika, garlic powder, onion powder, sea salt, black pepper, and cayenne.
Rub the spice mixture evenly over both sides of the ribs, pressing firmly so it adheres to the meat.
Place the ribs in the smoker or on a parchment-lined baking sheet in the oven and cook for 3 to 4 hours until tender.
In a small saucepan, whisk together the tomato paste, apple cider vinegar, Dijon mustard, and maple syrup over low heat until smooth.
Brush the tangy glaze over the ribs during the last 30 minutes of cooking.
Steam the green beans until they are vibrant and tender-crisp.
Slice the ribs between the bones and serve immediately alongside the green beans.