Introduction to blockchain 1
This test consolidates the basic concepts of blockchain technology and checks the understanding of its key components, such as: decentralization, hash, public and private keys, creating transactions, blocks, nodes and mining. To obtain theoretical material, it is recommended to read the book by A. Antonopoulos “Mastering Bitcoin”
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Fairy Starfish author
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Pictures were made specially in this hand-made and inaccurate style so that every picture would not distract from the question, but at the same time would help to explain its essence and provide a hint.

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