The blockchain is nothing more than a chained list of blocks whose reliability as well as the durability of the information it contains are guaranteed by the link between these blocks. (see part 1) It is a technology that appeared in the 21st century...

BACKGROUND Blockchain is a technology that emerged in the 21st century to decentralize bank transfers and became known thanks to the rise of cryptocurrencies, but it is primarily a technology that allows for sustainable, secure and decentralized storage...