About PiHex
PiHex was a distributed computing project which used idle time slices on almost two thousand computers to calculate specific bits of Pi. We made use of Bellard's formula, a faster version of the BBP formula, with the algorithm discovered by Bailey, Borwein, and Plouffe in 1995.
After setting three records -- calculating the five trillionth bit, the forty trillionth bit, and the quadrillionth bit -- PiHex has now finished.