Node.js is not a perfect product, which has certain drawbacks (using JS?). Some of them are the result of erroneous decisions at an early stage of development. As is often the case, it is sometimes difficult or impossible to find an alternative to this system, especially in the enterprise sector…

In this article, we will talk about deterministic wallets, hierarchical key generation, as well as how this works mathematically and in what cases this is convenient to apply in practice. This material will be helpful for specialists whose activities relate to payment gateways, Bitcoin wallets, and other coin storages. …

What is a smart contract and why was it needed? Long ago, after the emergence of bitcoin — the first replicated state machine — people began to notice that the functionality inherent in the consensus was too limited. I’m not talking about adding crypto cat trading, but about quite real use cases, i.e. DNS where each domain belongs to a…

In the world of programming and IT, people are eager to give all their activities scientific character and provide scientific proof for everything. When I got into the Ruby world, I felt something completely different. Yukihiro Matsumoto created a language to facilitate communication between people through code, and this has…

DPoS (Delegated proof-of-stake) is an algorithm for reaching a consensus in a decentralized environment, which is an alternative to PoW (Bitcoin proof-of-work) and PoS (Peercoin or NXT proof-of-stake). …

Not only newbie developers, but also experienced professionals sometimes have to undo changes. And then, the first thing that comes to mind is the git revert command, which is the safest way to do that. However, there are some pitfalls I would like to tell you about. Let’s take a…