The Bitcoin network will see two significant milestones pass on the Bitcoin blockchain. The first is the mining of the 15 millionth coin leaving only a maximum of 6 million more Bitcoins to be acquired through subsidy for mining new blocks. The 14 millionth coin was mined back in March and represented two thirds of all Bitcoin to ever exist having been mined. The second milestone is the imminent commitment of the hundred millionth Bitcoin transaction to the blockchain.