Double spending  is a theoretical way to successfully attack the Bitcoin blockchain and a feasible way to steal coins from other, less developed blockchains. It is unlikely that you will face this problem when using cryptocurrencies, but it is better to keep it in mind. What is double spending? Double spending is an operation where the same transaction is made twice. So, its author as if copies the data and uses it again, as a result, the amount spent is less...

Payment in bitcoins is not so popular yet, especially in Russian-speaking countries. However, some companies are willing to accept cryptocurrency both online and offline - we will talk about them in this article...

How do I invest in blockchain and make a profit: proven ways and 3 tips for startups Looking for alternative sources of passive income? This article will tell you how to invest in blockchain and make money from it. What is blockchain? Blockchain is a data storage technology first used for cryptocurrency transactions. It is characterized by a decentralized structure: the system regulates itself, without the intervention of an administering node. In practice...