Lesson 4: What's in a blockchain?

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Cryptocurrencies and blockchains are not real in themselves, and it may be difficult to visualize them even when learning about them. In this lesson, we will review the data stored in each block of the blockchain, and also look at how that data is stored.

このレッスンで学べること

  • Data stored in the blockchain
  • Structure within each block of the blockchain

Let's take a look at the contents of the blockchain

We have already learned in the curriculum "Cryptocurrency" that countless cryptocurrency transactions are recorded in each block of the blockchain.


Blockchain is a technology that allows cryptocurrency transactions to be carried out successfully without the need for a third party.

For this reason, we also learned that mining by miners is necessary.

So why on earth does mining allow cryptocurrency transactions to be executed normally?


The fact is that the transaction information recorded in each block of the blockchain can be viewed by anyone at any time.

Therefore, miners form blocks by viewing the transaction information in each block to make sure that there are no problems with the transactions.


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Lesson 4: What's in a blockchain?

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