Blockchain, understanding how it works while creating one

Understand Bitcoin, Ethereum and other cryptocurrencies. How a wallets sign transaction and how blocks are created

What you'll learn
What is blockchain
How blockchain works
What is SHA256
What is a wallet on the blockchain
How wallets sign transactions on the blockchain
What are private and public keys
How each individual peace of the blockchain works
How each peace on the blockchain connects to each other

Description
If you new to cryptocurrencies or use them every day you maybe still have many questions, such as:

What makes a block on the blockchain and how are blocks linked on the blockchain?

How blocks are validated and added to the chain?

How wallets' private and public keys work?

How wallets sign and validate transactions?

What is a decentralized system and why cryptocurrency uses it?

What is SHA256 and why bitcoin use it?

What is proof of work?

Or many other the thousands of questions we cover on this course, in this course, you will learn how this amazing technology works under the hood as we learn by creating each piece of the blockchain and adding it all together.

In this course we will create together:

SHA256 hashers

Blocks

Blockchain

Decentralized Blockchains

Transactions

Wallet

Sign and validate transactions

Signed transactions

And much more

In each class, you will learn (by doing) a new piece of the blockchain, expanding your knowledge on each new class and build on top of the newly acquired knowledge.

This course is created using JavaScript and React, all the blockchain parts are created separated to easily understand.

This course is not aimed to create a complete blockchain, but a sample blockchain with a fixed number of transactions where we can explore how each part of the blockchain works.