How Bitcoin has evolved since Nakamoto’s white paper debut

Few would argue that Bitcoin today closely reflects the vision Satoshi Nakamoto, its pseudonymous creator, presented in their white paper exactly 15 years ago.

Yes, the broad strokes remain relevant. Bitcoin is still a proof-of-work blockchain that relies on consensus between nodes to operate properly. 

But the pitch made in the 2008 white paper — bitcoin as a form of digital cash — has evolved and expanded over time. Some now look to bitcoin as more of a reserve asset, akin to a digital form of gold.

But a framework for digital cash, without the need to trust a central intermediary or administrator, was at the heart of Nakamoto’s initial proposal:  

“What is needed is an…

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