Blockchain, more than just a trend

Blockchain was born only 8 years ago and has always been overshadowed by the Bitcoin cryptocurrency which is based on this technology. This technological infrastructure provides Bitcoin with all the benefits: security, reduced operating costs, immediacy, transparency… At present, it has become a trend for many solutions in various sectors such as logistics, agri-food, industry, etc.

The Blockchain technology is essentially a mechanism that allows to establish a consensus on the status of a digital database, shared within a community, in which users do not need to know or trust each other to be sure that what appears in that record is true. We can apply blockchain to any digital exchange where these premises are met. Blockchain is the result of a brilliant combination of different techniques: encryption, timestamping, P2P, PoW/PoS, which have made its success possible.
Moreover, they have been integrated in such way that the system does not crash, any element that is added to a block and linked to the chain, remains unchanged once published, and more blocks are built on top.

Our world is constantly evolving and there are already a series of tools that make the implementation of this technology relatively easy, such as Ethereum, Hiperledger Fabric, etc.

Juan Manuel Corchado

Full Professor in Computer Science and Artificial Intelligence, Department of Computer Science and Automation, University of Salamanca, Spain.


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