2019-1-21 · This paper discusses the economics of how Bitcoin achieves data immutability, and thus payment finality, via costly computations, ie "proof-of-work". Further, it explores what the future might hold for cryptocurrencies modelled on this type of consensus algorithm. The conclusions are, first, that Bitcoin counterfeiting via "double-spending" attacks is inherently profitable, making ...
1) ما هي الحقيقة المترابطة التي تساعدك على حل 40 + ____ = 60 a) 60 - 10 = 40 b) 60 - 40 = 20 c) 40 - 20 = 20 2) أوجد الحد الجمعي الناقص 10 + ____ = 50 a) 40 b) 30 c) 20 3) أوجد الحد الجمعي الناقص 30 + ____ = 80 a) 60 b) 50 c) 40 4) أي مما يلي تمثل حقائق مترابطة للحقيقة 60 - 20 ...