In a medium glass bowl, whisk together the plain skyr, chia seeds, vanilla extract, and ground cinnamon until fully incorporated.
Cover and refrigerate the skyr mixture for at least 15 minutes, or overnight, to allow the chia seeds to hydrate and thicken the base.
Bring a small saucepan of water to a rolling boil, then carefully lower the eggs into the water using a slotted spoon.
Boil the eggs for exactly 6 minutes and 30 seconds for a jammy yolk, then immediately transfer them to a bowl of ice water for 3 minutes.
Gently crack and peel the eggs, then slice them in half lengthwise.
Stir the chilled skyr mixture once more and transfer to a serving bowl.
Top the bowl with the sliced jammy eggs, fresh blueberries, and a sprinkle of hemp hearts before serving.