Block chains are a type of distributed ledger in which transactions (in bitcoins normally) are divided into blocks.
Every time they will be used more because they promise to transform the models of operations of the industry.
Five are the key identifying features to describe the operation of blockchain technology: it has a decentralized character - since it does not require a central entity of trust; Is a distributed and consensual technology - since it starts from clear rules and a consensus about the validity of the transactions and the state of the chain of blocks; Open - any user can make use of it - and safe - thanks to the cryptographic verification. Let's break it down.