Pi is a new digital currency developed by a team of PhD holders from Stanford University, with more than 55 million people around the world. To participate with us in Pi, choose this link https://minepi.com/trfvkn and use my username trfvkn as an invitation code https://minepi.com/trfvkn Join through my referral to earn one Pi and also increase your mining rate if you register through my referral invitation code trfvkn