On May 22, 2010, Laszlo Hanyecz bought 2 pizzas with 10,000 BTC. This transaction marked the first commercial application of BTC. The value of the transaction has exceeded $400 million. In memory of this event, May 22 is set as "Bitcoin Pizza Day". In 2023, the BRC20 ecosystem was born on the BTC chain, and PIZA is one of the earliest deployed tokens. PIZA pays homage to BTC, and its total amount is consistent with BTC，which is 21,000,000. The emergence of PIZA has attracted extensive attention from global BTC enthusiasts. It will rebuild the fun of meme coins and continue the legendary story of BTC and PIZA.