The paper states that this would only alter the center of mass. If you catch the coin or it lands on a soft surface, it has no effect, because the outcome is de

The paper states that this would only alter the center of mass. If you catch the coin or it lands on a soft surface, it has no effect, because the outcome is determined by the time when it stops. If you allow it to bounce, then yes. TL;DR: if you want unbiased coin IRL, make sure you catch it before it hits the ground.