In the shadow of the 2008 global financial crisis, trust in the financial system was at a historic low. Banks had failed, markets had collapsed, and confidence in central institutions had been deeply shaken.

It was in this moment of uncertainty that an anonymous figure, Satoshi Nakamoto, published the Bitcoin white paper – a nine-page document that quietly introduced a radical new idea: a financial system that would not rely on trust in institutions at all.

Rather than banks or governments, transactions would be verified by a shared digital network run collectively by its users – a system that became known as blockchain. But blockchain was never just about technology – it was about rethinking mechanisms of trust, so it could be engineered rather than delegated.

Nakamoto’s vision was made possible through a consensus mechanism known as “proof of work” (PoW), which required participants to solve complex computational problems to validate transactions. The system was intentionally costly to operate. That cost was precisely what made it secure: changing the shared record of transactions would require immense resources, making manipulation economically unviable.

But as bitcoin’s popularity grew rapidly – from a niche experiment in 2009 to a network processing hundreds of thousands of daily transactions within a decade – so did its demands. Maintaining trust through continuous computation proved expensive – not just financially but........

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