In this chapter of our Advanced Level about blockchain technology, we will introduce you to the most important ideas, elements, and entities of a public blockchain starting with an overview.

The Elements of a Blockchain

In the first article of this chapter we give you an overview of the different elements that make a blockchain work.

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Hash Functions

Hash Functions are an important part in every blockchain because they are used to verify the integrity of data.

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Public Key Cryptography

Another major element is Public-Key Cryptography. It is used to verify ownership and gave cryptocurrencies their name.

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A Peer-to-Peer (P2P) Network

Here we talk about the "physical" infrastructure that blockchains are running on - the Peer-to-Peer Network.

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Consensus Mechanisms

There are many different parties in a blockchain and all of them need to agree on the transaction history. Here we show you how this is achieved.

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Mining

In this last article of the chapter we show you how miners secure the blockchain with their computational power.

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