BlockBeats News, July 4th, according to Coinbase executive Conor Grogan, today it was revealed that the "14-year-old dormant Bitcoin whale" that transferred 50,000 BTC appears to be a solo miner from 2011. The whale had previously mined 180 blocks and in 2011 held an address with 200,000 BTC, which is worth around $22 billion today, making it one of the top five wallets in history.