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Articles on Bitcoin

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Blockchain transactions are carried in blocks. The amount of energy it takes to add a new block varies widely depending on how it’s done. Yuichiro Chino/Moment via Getty Images

What is proof-of-stake? A computer scientist explains a new way to make cryptocurrencies, NFTs and metaverse transactions

Ethereum, one of the world’s largest blockchains and host of decentralized finance, NFTs and billions of dollars’ worth of cryptocurrency, is poised to dramatically reduce its energy consumption.
Crypto trading platforms Celsius and Voyager filed for bankruptcy in July 2022, suspending all withdrawals, swaps and transfers between accounts and leaving users’ assets trapped inside their platforms. (Shutterstock)

Crypto platforms say they’re exchanges, but they’re more like banks

Because cryptocurrency exchange platforms act more like banks, they should be subject to increased oversight to protect clients’ assets.
Members of Congress give Ukrainian President Volodymyr Zelensky a standing ovation during a speech by videoconference on Capitol Hill in Washington, D.C., on March 16, 2022. Ukraine says it is pioneering a new source of financial support: cryptocurrency. (Sarahbeth Maney/The New York Times via AP)

How the Russia-Ukraine conflict has put cryptocurrencies in the spotlight

Cryptocurrency allows Ukraine to get quick financial support, and Russia, to bypass international sanctions and protect some of its economic interests.
For some, promoting cryptocurrencies is political activism. Vasil Dimitrov/E+ via Getty Images

Behind the crypto hype is an ideology of social change

Many people promoting cryptocurrencies are looking for something bigger than the future of financial transactions. They’re aiming to break free of governments and corporations.

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