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.

Posted by Juan M. Corchado

Catedrático en el Área de Ciencias de la Computación e Inteligencia Artificial de la Universidad de Salamanca. Director del Grupo de Investigación BISITE // Full Professor in Area of Computer Science and Artificial Intelligence at University of Salamanca. Director of the BISITE Research Group

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