Before going into details, it is important to understand what blockchain is. The blockchain is a decentralized technology that enables the secure and transparent transfer of information and digital assets. In essence, it is a blockchain that stores data securely and permanently.
LINK...
https://www.ibm.com/es-es/topics/blockchain
https://blockchain.berkeley.edu/courses/fundamentals-decal.html
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Mastering Blockchain: Unlocking the Power of Cryptocurrencies, Smart Contracts, and Decentralized Applications 1st Edition
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