Eleven years ago, a nineteen-year-old young developer named Vitalik Buterin published a document that would shake the foundations of blockchain technology. This "White Paper" of Ethereum, which first appeared in November 2013, laid the groundwork for a new era of finance and decentralization. Much more than just an extension of Bitcoin, Ethereum proposed an innovative vision: a programmable ecosystem that allows autonomous applications to operate without intermediaries. Today, as this document celebrates its 11th anniversary, it is crucial to reflect on the colossal impact of this initiative, its successes, and the challenges that still lie ahead in a constantly evolving sector.