Mainstream cryptocurrencies like Bitcoin (BTC) and Ethereum (ETH) continued to trade at a discount over the last 24 hours, while another small cryptocurrency named Elon’s Marvin scaled a new high jumping more than 3,000 per cent on December 13, according to data from global market exchange coinmarketcap.com. Elon’s Marvin is named after Tesla CEO Elon Musk’s Havanese dog Marvin.