Qtum/QTUMQtum is an Asian cryptocurrency based on the proof-of-stake method of confirming transactions. This means node operators are not given rewards for mining the currency; rather, they validate transactions using the currency and are rewarded for that instead. However, while it is different in some ways to other cryptocurrencies including Bitcoin, it does share similarities too. It is decentralized and provides an open source method of conducting the platform. Those participating in Qtum have a say in whether network parameters can be altered if requested.
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