The unit of account of the bitcoin system is a bitcoin. Ticker symbols used to represent bitcoin are BTC[a] and XBT.[b][72]:2 Its Unicode character is ₿.[1] Small amounts of bitcoin used as alternative units are millibitcoin (mBTC), and satoshi (sat). Named in homage to bitcoin's creator, a satoshi is the smallest amount within bitcoin representing 0.00000001 bitcoins, one hundred millionth of a bitcoin.[2] A millibitcoin equals 0.001 bitcoins; one thousandth of a bitcoin or 100,000 satoshis.[73]
The rapid price increase of Ethereum has not only attracted investors but developers too. Ethereum has tens of thousands of developers in its open source community, each contributing to the many layers of the “Ethereum stack”. This includes code contributions to the core Ethereum clients, second layer scaling tech and the “decentralized applications” (dApps) that are built on top of the platform. The appeal of Ethereum to developers is unique in that it was the first platform to allow anyone in the world to write and deploy code that would run without the risk of censorship. The community of developers which have formed around these core principles have led to the creation of technologies that could not have existed without the inception of Ethereum, many of which were never predicted. Some of the major use-cases of Ethereum so far have been:
البيتكوين عملة رقمية ذات مجهولية، حيث أن عملية التحويل عبرها يتطلب فقط معرفة رقم محفظة الشخص المحول إليه ويتم تخزين عملية التحويل في سلسلة الكتل برقم تسلسلي خاص ولا يتضمن هذا اسم المرسل او المتلقي او اي بيانات اخرى خاصة بهما، مما يجعل منها فكرة رائجة لدى كل من المدافعين عن الخصوصية، أو بائعي البضائع غير المشروعة (مثل المخدرات) عبر الإنترنت على حد سواء.[9]
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