Digital currency (digital money or electronic money or electronic currency) is a type of currency available only in digital form, not in physical (such as banknotes and coins). It ...

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Turning to regulations, after a tough two-year negotiation period, the EU has now, finally, agreed on a second payment services directive (PSD2) which involves strengthening the ...

Virtual currency, or virtual money, is a type of unregulated, digital money, which is issued and usually controlled by its developers and used and accepted among the members of a specific ...

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Mining is the process of adding transaction records to Bitcoin's public ledger of past transactions (and a "mining rig" is a colloquial metaphor for a single computer system that ...

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A proof of work is a piece of data which is difficult (costly, time-consuming) to produce but easy for others to verify and which satisfies certain requirements. Producing a proof ...

Proof of Stake is a proposed alternative to Proof of Work. Like proof of work, proof of stake attempts to provide consensus and doublespend prevention ...

Bitcoin is P2P electronic cash that is valuable over legacy systems because of the monetary autonomy it brings to its users. Bitcoin seeks to address the root problem with conventional currency: all the trust that's ...

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The legal status of bitcoin varies substantially from country to country and is still undefined or changing in many of them. Whereas the majority of countries do not make the usage of ...