Hanyecz posted on Bitcointalk offering bitcoins for delivered pizza; Jeremy Sturdivant took the trade. The coins were worth pennies then and became a cautionary tale about early spending — but the event proved BitcoinThe first decentralized cryptocurrency — a proof-of-work blockchain without a central issuer. could settle real-world commerce, not just forum tips.

BitcoinThe first decentralized cryptocurrency — a proof-of-work blockchain without a central issuer. Pizza Day marks the moment cryptocurrencyDigital money secured by cryptography — transactions recorded on distributed ledgers such as blockchains. left pure speculation.

It demonstrated peer-to-peerA network where participants connect directly as equals — no single central server is required. digital cash could buy ordinary goods.