The head of MtGox Co., once the world's largest bitcoin digital currency exchange, denied embezzling hundreds of millions of yen from its customers as his trial began Tuesday in Tokyo.Appearing at the Tokyo District Court, Mark Karpeles, 32, who was born in France, said huge losses of the digital currency at the now-bankrupt exchange were the result of hacking.He pleaded not guilty to data manipulation and embezzling a total of 341 million yen ($3 million) of customers' money between September and December of 2013.Q&A: MtGox head Mark Karpeles answers questions after first trial"I swear to …READ FULL ARTICLE