Blockchain tutorial 24: Blockchain and miners

Published on April 21, 2021

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This is part 24 of the Blockchain tutorial explaining what a Blockchain is and what miners are.

This tutorial explains the following:
– what the blocks are in the blockchain
– what data does a block contains
– what a block number and block height is
– what a genesis block is
– what a main chain, side fork or orphaned forks are
– what miners are and their purpose
– what a coinbase transaction is and how Bitcoins are created
– there will be maximum 21 million Bitcoins
– what a block reward is
– what block reward halving is
– what a hash puzzle is

In this video series different topics will be explained which will help you to understand blockchain.

Bitcoin released as open source software in 2009 is a cryptocurrency invented by Satoshi Nakamoto (unidentified person or group of persons).
After the introduction of Bitcoin many Bitcoin alternatives were created. These alternate cryptocurrencies are called Altcoins (Litecoin, Dodgecoin etc).
Bitcoin’s underlying technology is called Blockchain.
The Blockchain is a distributed decentralized incorruptible database (ledger) that records blocks of digital information. Each block contains a timestamp and a link to a previous block.

Soon people realises that there many other use cases where the Blockchain technology can be applied and not just as a cryptocurrency application.
New Blockchain platforms were created based on the Blockchain technology, one of which is called Ethereum.
Ethereum focuses on running programming code, called smart contracts, on any decentralized application.

Using the new Blockchain platforms, Blockchain technology can be used in supply chain management, healthcare, real estate, identity management, voting, internet of things, etcetera, just to name a few.
Today there is a growing interest in Blockchain not only in the financial sector but also in other sectors.

Explaining how Blockchain works is not easy and for many the Blockchain technology remains an elusive concept.
This video series tries to explain Blockchain to a large audience but from the bottom up.
Keywords often used in Blockchain conversation will be explained.
Each Blockchain video is short and to the point.

It is recommended to watch each video sequentially as I may refer to certain Blockchain topics explained earlier.

Check out all my other Blockchain tutorial videos
https://goo.gl/aMTFHU

Subscribe to my YouTube channel
https://goo.gl/61NFzK

The presentation used in this video tutorial can be found at:
http://www.mobilefish.com/developer/blockchain/blockchain_quickguide_tutorial.html

#mobilefish #blockchain #bitcoin #cryptocurrency #ethereum

Do All Blockchains Require Mining

Do All Blockchains Require Mining, Blockchain tutorial 24: Blockchain and miners.

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