Bitcoin Millionaires Become Investing Angels | MIT Technology Review:
Bitcoin originated in 2009, when its source code was posted online by persons unknown. Despite its mysterious origins, the way it works is transparent: the currency is produced when people carry out difficult cryptographic operations on computers, and then it’s exchanged over an open-source peer-to-peer network. Bitcoins are immune to counterfeiting and don’t rely on any central authority (see “What Bitcoin Is and Why It Matters”).
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