Cryptocurrencies including Bitcoin are known to be vulnerable to so-called “doublespending” attacks, where the same digital currency is used to execute multiple different transactions simultaneously. Little is known, however, about the underlying reasons for this vulnerability. Here we...

We establish a relatively more complete mechanism for detecting the price bubbles in the cryptocurrency markets, which excludes the external factors as far as possible to focus on the study of the characteristics of the price bubbles. This mechanism detects the abnormal rupture of the...