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Blockchain technology was originally invented in 1991 by two mathematicians, Stuart Haber and W. Scot Stornetta. They first proposed the system to ensure that timestamps could not be tampered with.
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Israel launches air strikes against Iran
"It seems that we're going back into the old first space race days of competition, which, from a scientific perspective, is a little bit disappointing and concerning," says Dr Barber.
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