Cryptocurrency enthusiasts are keen on telling ordinary civilians how safe and secure the Blockchain protocols powering their favorite coins are. Indeed, major cryptocurrencies like Bitcoin and Ethereum have maintained their security quite well—better, arguably, than any other digital asset/payment system in history—which is pretty remarkable, considering that they are unbacked digital money free from any… Read More


Ethereum developers have long known that scaling the network is a subject worth discussion and investment. The matter did not quite spill out from the developer community, however, until late 2017, when a decentralized application (dApp) named CryptoKitties attracted so much traffic it began slowing down the network. On top of network latency, the price… Read More


Swiss startup Sirin Labs has introduced a smartphone Finney, the software component of which is based on the blockchain technology. From the technical side, Finney is not very different from other models of the higher price segment. Six-inch screen smartphone is characterized by an aspect ratio of 18: 9. The device is based on the… Read More


A little over a year ago, the three Lightning Network implementation teams joined forces to work on a common specification for the protocol stack. Now that both that specification and our three implementations are becoming stable and usable, it is time to look forward: to further improve the protocol, to add new features, to simplify,… Read More


Superposition lets one qubit perform two calculations at once, and if two qubits are linked through a quantum effect known as entanglement, they can help perform 2^2 or four calculations simultaneously; three qubits, 2^3 or eight calculations; and so on. In principle, a quantum computer with 300 qubits could perform more calculations in an instant… Read More


This is an explanation of the key function on Proof-of-Work in the Bitcoin blockchain. It focuses on the one feature of Proof-of-Work that is essential and shows that other features often talked about such as security are secondary side-effects, useful, but not essential. Source: grisha… Read More