Zcash, a Harder-to-Trace Virtual Currency, Generates Price Frenzy

Each Bitcoin user has an address, made up of letters and numbers, and the authorities are often able to link an address to a real person using sophisticated data analysis. In contrast, Zcash uses a method developed by a team of cryptographers working at M.I.T. and in Israel — known as zk-Snark — that allows transactions to be confirmed by the network without anyone recording the Zcash addresses involved in the transactions.