WHAT IS BLOCKCHAIN

Dorothy·2022년 6월 20일
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#WHAT IS BLOCKCHAIN

Blockchain is what is making BTC, ETH, ADA, ... run.

Blockchain is 'chain of blocks'.

Let's change the words block replace with database.

Blockchain is very very sexy cool database.

Why Sexy? Why Cool?

First, It's append only.

This database you can only add things do it.

You can not delete things from it.

You can not edit things from them.

Second, blockchain can be decentralization.

I'm not uncontrol of the whole database.

All have a copy of the same database.

This distributed database as well.

We would all have to turn off our computers and all that node the we unrunning an then become with dead.

But that can never happend.

So, it is very very cool database.

Now let's talk about block part of blockchain.

Block are how we add data do a block.

The case of bitcoin this block is created every ten minitues also.

Block has 'the hash of the block', 'the previous hash', and 'the data'.

DATA - The case of bitcoin on the data part of the bitcoin blocks is just a bunch of transaction.

HASH - They is one input, and gives you an output. It is one way function. And it is deterministic.
(With mango juice, you can not make a mango fruit.)

(Example) I have my data. Whatever data want to put in to the blockchain. And I have the hash of the previous block. I take this do I combine them and I make my hash.

Next post we are going to understand how the bitcoin blockchain protects it self.

Because node everybody should be able to add a block.

They has to be some condition to add a block.

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