To the uninitiated, it doesn't sound like much — 0.285 of a single bitcoin.But with the cash value of the digital currency soaring, Missouri senatorial candidate Austin Petersen says the donation he received yesterday actually represents the largest single bitcoin donation in federal election history. In fact, converted to dollars, that small fraction is worth $4,500.
Petersen is a libertarian who is running as a Republican with the aim of taking down both the party's establishment in the August primary and U.S. Senator Claire McCaskill (D-Missouri) in the general election in November.…