A yellow legal pad with “Buy Bitcoin” scribbled on it - the type that will cost you $8.99 for a three-pack on Amazon — just sold for $1.027 million during an auction. The hastily produced sign was flashed by an intern back in 2017 during televised Congressional testimony of then-Federal Reserve Chair Janet Yellen. The placard quickly became a rallying cry for a small but fast-growing community of crypto developers and investors, and now a sign of the cryptocurrency’s renaissance. Since then, Bitcoin’s price has surged from around $2,300 to a record high of almost $74,000 in March as financial services titans such as ... (full story)