Ae nào chưa đào pi network thì tải theo link ủng hộ mình nhé.Pi is a new digital currency being developed by a group of Stanford PhDs. For a limited time, you can join the beta to earn Pi and help grow the network. To join Pi, follow this link https://minepi.com/vietxiu and use my username (vietxiu) as your invitation code. Link: