On May 22, 2010, two pizza pies were bought by a person named Laszlo Hanyecz. While the pies themselves were mundane, the transaction was revolutionary—they were bought with 10,000 bitcoins, worth roughly $41 at the time. Now that one purchase gages the health of the entire $258 billion cryptocurrency market. Of course, that wasn’t always the case. So when Dutch programmer Merijn Bellekom quietly launched the Twitter bot @bitcoin_pizza in 2015, he didn’t know it would blossom into a $100 million meme. Every day at 7:14pm ET, Bellekom’s bot publishes the value of 10,000 bitcoins—what Hanyecz paid for those two pizza pies in 2010—to Twitter using current prices. “The bot was…

The actual two pizza pies bought for BTC 10,000 by Laszlo Hanyecz in the first known bitcoin purchase