Litecoin LTC - provides faster transaction confirmations (2.5 minutes on average) and uses a memory-hard, scrypt-based mining proof-of-work algorithm to target the regular computers and GPUs most people already have - which are its main differentials to Bitcoin. The Litecoin network is scheduled to produce 84 million currency units with a halving in reward every four years just like bitcoin. The coin was created by a Google employee, Charles Lee.