【Forbes】：
"Bitcoin Pizza Day" participant, programmer Laszlo Hanyecz spent 10,000 BTC to exchange for two large Papa John's pizzas on May 22, 2010, but what most people do not realize is that Laszlo Hanyecz spent as much as 79,000 bitcoins on subsequent pizza purchases that day, which are now worth over 8.7 billion dollars. He also mentioned in a 2019 interview that his expenses for buying pizzas with Bitcoin in 2010 reached nearly 100,000 BTC.
In addition, to prove that he had used all his bitcoins to purchase pizzas, Laszlo Hanyecz published his Bitcoin address on the Bitcointalk forum, which showed that from the creation date of April 10, 2010, to August 4, 2010 (the day he ended public trades of Bitcoin for pizzas), over 79,000 bitcoins were sent. The bitcoins in that wallet were emptied in June 2011, with a total outflow slightly exceeding 81,432.