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In my previous article, I tried to described the concept of a blockchain with code. This time, I'll try to describe the structure of a single block. I will use the Bitcoin blockchain to explain blocks, but keep in mind that the concepts will remain more or less the same. It could be useful to read my <a href="https://dev.to/damcosset/trying-to-understand-blockchain-by-making-one-ce4" target="_blank">last article</a>to understand a few things first.