Dogecoin's implementation differs from Litecoin by several parameters. Dogecoin's block time is 1 minute as opposed to Litecoin's 2.5 minutes.
Several cases of using employer or university computers to mine Dogecoin have been discovered.
Unlike deflationary cryptocurrencies which have a limit on the number of coins that can be produced, there is no limit to how many Dogecoins can be produced, which makes it an inflationary coin. Dogecoin was initially to have a limit of 100 billion coins, which would already have been far more coins than the top digital currencies were allowing. In February 2014, Dogecoin founder Jackson Palmer announced that that limit would be removed and there would be no cap, which should have the result of constant reduction of its inflation rate over a long time.