[500 BTC Moved Again from Irish Drug Dealer's Bitcoin Address After 10 Years of Inactivity] According to Arkham monitoring, Irish drug dealer Clifton Collins purchased $30,000 worth of BTC between 2011 and 2012, which is now valued at $400 million. However, he lost the private keys and has been imprisoned. These BTC were once thought to be lost until a month ago, when 500 BTC were moved for the first time after 10 years of inactivity. Just recently, another 500 BTC (worth $38 million) were transferred.