An ancient Bitcoin whale, active since 2009, has sold $9.7 million worth of Bitcoin but still holds $72 million in BTC. This miner, who started shortly after the creation of Bitcoin's genesis block, had been moving funds to the Kraken exchange over two months, according to Arkham Intelligence. Early Bitcoin adopters could mine up to 3,000 BTC per day using personal computers due to the low mining difficulty and 50 BTC block rewards. Source: U Today
