I bent down, rested my knees on a prayer cushion, and began typing into a small computer. In front of me were dozens of candles, flowers, Japanese lucky cat figurines, and several wallet-sized picture frames. They held photos of Vitalik Buterin, the Canadian programmer who cofounded the computing platform Ethereum, as well as of Satoshi Nakamoto, a man in his 60s with the same name as the founder of Bitcoin.

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