6. Bitcoin is a peer-to-peer payment system
introduced as open source software in 2009 by
developer Satoshi Nakamoto. The digital currency
created and used in the system is also called
bitcoin and is alternatively referred to as a virtual
currency, electronic money, or cryptocurrency.
The bitcoin system is not controlled by a single
entity, like a central bank, which has led the US
Treasury to call bitcoin a decentralized currency.
Because bitcoins can be transferred directly from
one person to another they are sometimes
described as "digital cash". --Wikipedia
18. Bitcoin is a peer-to-peer payment system
introduced as open source software in 2009 by
developer Satoshi Nakamoto. The digital currency
created and used in the system is also called
bitcoin and is alternatively referred to as a virtual
currency, electronic money, or cryptocurrency.
The bitcoin system is not controlled by a single
entity, like a central bank, which has led the US
Treasury to call bitcoin a decentralized currency.
Because bitcoins can be transferred directly from
one person to another they are sometimes
described as "digital cash". --Wikipedia