What is Bitcoin Cash? - A Beginner’s Guide

99Bitcoins
5 Aug 201915:03

Summary

TLDRBitcoin Cash (BCH) is a hard fork of the original Bitcoin, created in response to disagreements over the block size and scalability issues. The video explains the difference between soft and hard forks and delves into the controversy that led to the creation of Bitcoin Cash. It highlights the two opposing camps: the 'Big Blocks' group, advocating for an increase in block size to 8MB to allow more transactions and reduce fees, and the 'Small Blocks' group, preferring to keep the 1MB block size and instead improve transaction optimization through solutions like Segregated Witness (SegWit) and the Lightning Network. The video also discusses the decentralized decision-making process in the Bitcoin network, involving miners, developers, exchanges, wallet providers, nodes, and users. Bitcoin Cash, with its larger block size and different approach to mining difficulty, has maintained its position in the cryptocurrency market, while the original Bitcoin continues to be the dominant choice. The video concludes by emphasizing the importance of considering long-term implications over quick fixes and the strength of the decentralized Bitcoin network.

Takeaways

  • 📈 Bitcoin Cash (BCH) is a hard fork of Bitcoin, created due to disagreements over scalability solutions.
  • 🔄 Forks in cryptocurrency can be either soft or hard; Bitcoin Cash resulted from a hard fork.
  • ⛓ The block size debate led to the creation of Bitcoin Cash, with the 'Big Blocks' camp advocating for an increase in block size for faster transactions.
  • 💻 Bitcoin transactions are grouped into blocks, which are added to the blockchain every 10 minutes, with a 1 MB limit causing scalability issues.
  • 💵 High transaction volumes can lead to increased fees and confirmation times, affecting Bitcoin's utility as a payment method.
  • 🤝 Two main camps emerged from the debate: 'Big Blocks', led by Bitmain and Roger Ver, and 'Small Blocks', supporting optimization over increasing block size.
  • 🔍 SegWit was a 'Small Blocks' solution to reduce transaction size and enable scaling without increasing block size.
  • 🌐 The Lightning Network is a second-layer solution proposed to enable instant and feeless transactions on top of Bitcoin.
  • 🚧 Larger block sizes were argued to hurt decentralization by requiring more storage and processing power, centralizing the network around fewer participants.
  • ⚖️ The Bitcoin network is decentralized, with no single entity making decisions; changes are made based on consensus among miners, developers, and users.
  • 💬 The Bitcoin Cash fork in 2017 was a pivotal moment, showing the power of user adoption in determining the 'true' Bitcoin.
  • ⛓️ Bitcoin Cash has a larger block size (up to 32mb), does not support SegWit, and adjusts mining difficulty more quickly than Bitcoin.

Q & A

  • What is Bitcoin Cash and how is it related to Bitcoin?

    -Bitcoin Cash (BCH) is a hard fork of Bitcoin's protocol that created a new coin with a larger block size. It was born out of disagreements over how to scale Bitcoin, with Bitcoin Cash proponents favoring an increase in block size to allow for more transactions.

  • What are the two types of forks in the context of cryptocurrencies?

    -The two types of forks are soft forks and hard forks. Soft forks are backward compatible with the original coin, allowing users to run either version without significant issues. Hard forks, however, are not compatible with the original coin and require users to choose between running the new version or sticking with the original.

  • Why was Bitcoin Cash created?

    -Bitcoin Cash was created as a response to the scalability issues of Bitcoin. Proponents believed that increasing the block size from 1MB to 8MB would allow for more transactions per second and reduce network congestion.

  • What is the block size of Bitcoin Cash and how does it differ from Bitcoin's?

    -Bitcoin Cash initially started with a block size of 8MB, which was later increased to 32MB. This is significantly larger than Bitcoin's block size of 1MB, allowing Bitcoin Cash to process more transactions in each block.

  • What is SegWit and how does it relate to the block size debate?

    -SegWit, or Segregated Witness, is a protocol upgrade that effectively reduces the transaction size by 75%, allowing a 1MB block to hold as many transactions as a 4MB non-SegWit block. It was proposed by the 'Small Blocks' camp as an alternative to increasing the block size.

  • What is the Lightning Network and how does it aim to solve Bitcoin's scalability?

    -The Lightning Network is a second-layer solution on top of the Bitcoin protocol that enables instant and feeless transactions. It was proposed by the 'Small Blocks' camp to address scalability without increasing the block size.

  • Why were some groups against increasing the block size of Bitcoin?

    -Groups against increasing the block size, known as 'Small Blockers', believed that larger blocks would hurt Bitcoin's decentralization and functionality. They argued that big blocks would require more storage and processing power, leading to a reduction in the number of nodes and potentially centralizing the network.

  • How does the Bitcoin network make decisions on protocol changes?

    -The Bitcoin network is decentralized, meaning no single entity makes decisions. Participants vote through their actions, such as which version of the protocol they run. Key players include miners, developers, exchanges, wallet providers, node operators, and users.

  • What happened on August 1st, 2017 in the context of Bitcoin Cash?

    -On August 1st, 2017, Bitcoin Cash was created as a hard fork of Bitcoin with an 8MB block size. This happened when the 'Small Blockers' activated SegWit on the original Bitcoin protocol, and the 'Big Blockers' created Bitcoin Cash.

  • What is the significance of the Bitcoin Cash hard fork in demonstrating the decentralized nature of Bitcoin?

    -The Bitcoin Cash hard fork demonstrated that no single party, not even powerful interest groups, can dictate the direction of the Bitcoin network. It showed that the system is unbiased and that the future of Bitcoin is determined by the collective decision of its users and participants.

  • How does the Bitcoin Cash hard fork relate to the concept of 'true Bitcoin'?

    -The concept of 'true Bitcoin' is subjective and largely depends on user adoption. After the hard fork, both Bitcoin (BTC) and Bitcoin Cash (BCH) continued to exist, with Bitcoin maintaining a strong position. The 'true Bitcoin' is often considered to be the version that the majority of users choose to adopt and use.

  • What are some key differences between Bitcoin Cash and the original Bitcoin post the hard fork?

    -Key differences include Bitcoin Cash's larger block size (initially 8MB, later 32MB), its lack of support for SegWit and the Lightning Network, and its faster adjustment of mining difficulty for new blocks. These differences reflect the distinct philosophies and technical approaches of the two communities.

Outlines

00:00

🤔 Introduction to Bitcoin Cash and its Origins

This paragraph introduces the topic of Bitcoin Cash (BCH) and poses several questions about its relationship with Bitcoin. It sets the stage for a discussion on the differences between the two, the concept of forks in cryptocurrencies, and the significance of Bitcoin Cash as a hard fork of Bitcoin. The speaker, Nate Martin from 99Bitcoins.com, invites viewers to learn about the deeper implications of Bitcoin Cash's creation, which tested Bitcoin's decentralization. The paragraph also touches on the scalability issue of Bitcoin and the emergence of different camps advocating for either 'Big Blocks' or 'Small Blocks' as solutions.

05:01

🚀 The Debate Over Block Size and Scalability

The second paragraph delves into the technical aspects of Bitcoin transactions, the block size limit, and the scalability debate that led to the creation of Bitcoin Cash. It explains the difference between soft and hard forks and why hard forks can result in a split in the network, leading to new coins. The paragraph outlines the positions of the 'Big Blocks' camp, which advocated for increasing the block size to 8mb to allow for more transactions, and the 'Small Blocks' camp, which supported keeping the 1mb block size and instead focused on optimizing transaction size and handling through solutions like Segregated Witness (Segwit) and the Lightning Network. The discussion also highlights the importance of maintaining decentralization and the potential drawbacks of large block sizes.

10:03

💬 The Power Dynamics Within the Bitcoin Network

This paragraph explores the decentralized nature of the Bitcoin network and the various stakeholders who influence its development, including miners, developers, exchanges, wallet providers, nodes, and users. It emphasizes that no single entity has the ultimate say, and changes to the Bitcoin protocol are decided through a consensus of these participants. The paragraph also discusses the contentious debate between the 'Big Blocks' and 'Small Blocks' camps, which culminated in the creation of Bitcoin Cash with an 8mb block size, while the original Bitcoin implemented SegWit. It concludes by reflecting on the importance of considering long-term implications and the value of optimization over quick fixes.

⛓️ The Fork and the Aftermath

The final paragraph describes the events following the Bitcoin hard fork that led to the creation of Bitcoin Cash. It details the initial uncertainty over which version would prevail, the support Bitcoin Cash received from Bitmain, and the subsequent realization that the original Bitcoin remained strong. The paragraph outlines the key differences between Bitcoin and Bitcoin Cash, including block size, support for SegWit and the Lightning Network, and mining difficulty adjustments. It also mentions a subsequent hard fork of Bitcoin Cash into Bitcoin ABC and Bitcoin SV, with the former being more widely accepted. The video concludes with a reflection on the decentralized nature of Bitcoin and the importance of considering the long-term effects of protocol changes.

Mindmap

Keywords

💡Bitcoin Cash (BCH)

Bitcoin Cash, also known as BCH, is a cryptocurrency that resulted from a hard fork of the original Bitcoin blockchain. It was created to address scalability issues by increasing the block size limit, allowing more transactions per block. In the video, Bitcoin Cash is presented as an alternate version of Bitcoin that was born out of disagreements over the block size and scalability.

💡Forks

A fork in the context of cryptocurrencies refers to a divergence from the original blockchain, creating a new version of the coin. There are two types: soft forks, which are backward compatible with the original chain, and hard forks, which are not and result in a permanent split. The video discusses forks in relation to the creation of Bitcoin Cash and other Bitcoin versions.

💡Block Size

The block size refers to the maximum amount of data that can be stored in a single block on the blockchain. The debate over increasing the block size from 1 MB to a larger size was a central issue leading to the creation of Bitcoin Cash. The video explains that larger blocks can accommodate more transactions, potentially reducing fees and increasing transaction speed.

💡Scalability

Scalability in the context of cryptocurrencies is the ability of a system to handle an increasing amount of transactions. The video highlights scalability as a critical issue for Bitcoin, with the block size debate being a major factor in the creation of Bitcoin Cash as a solution to improve transaction processing capacity.

💡Decentralization

Decentralization is a fundamental principle of Bitcoin, meaning that no single entity has control over the network. The video discusses the importance of decentralization and how the block size debate and subsequent creation of Bitcoin Cash tested this principle, emphasizing the network's resilience to centralized control.

💡Transaction Fees

Transaction fees are the costs paid by users to send Bitcoin transactions. The video mentions that during times of high network demand, transaction fees can become very high due to congestion. Bitcoin Cash was created with the intention of reducing these fees by increasing the block size and accommodating more transactions.

💡SegWit (Segregated Witness)

SegWit is an upgrade to the Bitcoin protocol that reduces the size of transactions, effectively allowing more transactions to fit within a block. The video contrasts the approach of SegWit, which was favored by the 'Small Blocks' camp, with the 'Big Blocks' camp's preference for simply increasing the block size.

💡Lightning Network

The Lightning Network is a second-layer solution proposed to enable faster and more efficient Bitcoin transactions. It was mentioned in the video as a scaling solution that the 'Small Blocks' camp advocated for, alongside SegWit, as an alternative to increasing the block size.

💡Bitcoin Whiteboard Tuesday Forks

This is a reference to a specific episode or video by 99Bitcoins.com that provides a detailed explanation about forks in the context of Bitcoin. The video script suggests viewers watch this episode for a more comprehensive understanding of the concept of forks and their role in the creation of Bitcoin Cash.

💡Satoshi Nakamoto

Satoshi Nakamoto is the pseudonym of the person or group of people who created Bitcoin. The video refers to Satoshi's original vision for Bitcoin as a peer-to-peer electronic cash system, which the 'Big Blocks' camp argues is best achieved through larger block sizes.

💡Hard Fork of Bitcoin’s Protocol

A hard fork of Bitcoin's protocol refers to a significant change to the rules of the Bitcoin network that is not compatible with previous versions, leading to a permanent divergence or 'fork' in the blockchain. The creation of Bitcoin Cash is an example of such a hard fork, as it involved a change in block size that was not accepted by all users.

Highlights

Bitcoin Cash (BCH) is a hard fork of Bitcoin, resulting from disagreements over the block size and scalability.

A hard fork creates an alternate version of a cryptocurrency, leading to a split in the network if not universally accepted.

Bitcoin transactions are confirmed by being included in a block on the blockchain, with a current block size limit of 1 MB.

The scalability issue of Bitcoin, with its limited transaction capacity, led to the formation of two camps: 'Big Blocks' and 'Small Blocks'.

Big Block supporters, including Bitmain and Roger Ver, advocated for increasing the block size to 8 MB to allow more transactions.

Small Block proponents argued for maintaining the 1 MB block size and optimizing transaction handling through solutions like SegWit and the Lightning Network.

The disagreement over block size threatened Bitcoin's decentralization, as larger blocks could lead to a smaller number of validating nodes.

The Bitcoin network is decentralized, with decisions made through the actions of miners, developers, exchanges, wallet providers, nodes, and users.

The Bitcoin Cash hard fork occurred on August 1, 2017, with Bitcoin Cash adopting an 8 MB block size and the original Bitcoin activating SegWit.

Bitcoin Cash has a larger block size, does not support SegWit or the Lightning Network, and adjusts mining difficulty more quickly.

Bitcoin Cash experienced its own hard fork in November 2018, leading to Bitcoin ABC and Bitcoin SV, with differing block sizes and features.

The Bitcoin Cash saga demonstrates the decentralized nature of Bitcoin, where no single party can dictate the direction of the network.

The 'true Bitcoin' is considered to be the version most widely adopted by users, highlighting the power of user choice in cryptocurrency.

The debate between optimizing within small blocks and increasing block size is a complex issue with long-term implications for Bitcoin's functionality and decentralization.

Bitcoin Cash, while similar to Bitcoin, has distinct differences and a separate development path, influenced by its community and supporters.

The story of Bitcoin Cash is a case study in the challenges of reaching consensus in a decentralized system and the potential for forks in cryptocurrency.

Transcripts

play00:00

What is Bitcoin Cash?

play00:01

Is it the same as just “Bitcoin”?

play00:03

What’s the difference between the two?

play00:05

And which is the “true Bitcoin”?

play00:07

Well stick around,

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in this episode of Crypto Whiteboard Tuesday

play00:10

we’ll answer these questions and more.

play00:19

Hi, I’m Nate Martin from 99Bitcoins.com

play00:22

and welcome to Crypto Whiteboard Tuesday

play00:24

where we take complex cryptocurrency topics,

play00:26

break them down and translate them into plain English.

play00:29

Before we begin,

play00:30

don’t forget to subscribe to the channel

play00:31

and click the bell so you’ll immediately get notified

play00:34

when a new video comes out.

play00:36

Today’s topic is Bitcoin Cash, also known as BCH.

play00:40

The story of Bitcoin Cash

play00:41

goes much deeper than just the creation of another cryptocurrency.

play00:45

It was actually one of the fiercest tests for Bitcoin’s decentralization.

play00:49

So let’s get started...

play00:50

A lot of people who are just starting out with Bitcoin or cryptocurrency in general,

play00:54

get confused when they see that there’s not just one “type” of Bitcoin.

play00:58

For example, Bitcoin Cash, Bitcoin Gold and Bitcoin Diamond

play01:02

are all forks of the original Bitcoin.

play01:04

A fork can be described as an alternate version of an original coin.

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There are two types of forks: soft forks and hard forks.

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Soft forks are versions that work well with both the original version

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and the alternate version of the coin,

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so as a user,

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you can choose which version to run without a lot of concern.

play01:21

Hard forks on the other hand, don’t play well with the original version.

play01:25

This means that you need to choose

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whether to update your software to run the alternate version,

play01:29

or to stick with the original one.

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In other words, with hard forks,

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if the alternative is not accepted by 100% of the users,

play01:36

then a sort of split will occur in the network

play01:38

and a new coin will emerge.

play01:40

One that is similar to the original but not identical.

play01:44

Bitcoin Cash and other Bitcoin versions

play01:45

are actually the results of suggested updates to the Bitcoin protocol

play01:49

that weren’t agreed to by everyone.

play01:51

So what happened is that an alternate version of the coin,

play01:54

or a hard fork, stemming from the original Bitcoin was created

play01:57

and new coins came into existence.

play02:00

If you want a complete detailed explanation about forks,

play02:02

make sure to watch

play02:03

our Bitcoin Whiteboard Tuesday Forks video as well.

play02:06

So now we know that Bitcoin cash is actually a hard fork of Bitcoin,

play02:10

but why was it created?

play02:12

To answer this question, we need to pause for a second

play02:14

and go back a few years to discuss one of the most controversial topics

play02:18

of Bitcoin’s code - the block size and scalability issue.

play02:22

Bitcoin transactions don’t get confirmed instantly.

play02:25

In order for a transaction to be considered as confirmed

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it needs to be included as part of a block of transactions

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on the Bitcoin ledger, known as the blockchain.

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A new block of transactions is added to the blockchain

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on average about every 10 minutes .

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Similar to any type of digital data,

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adding Bitcoin transactions to a block requires storage space,

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and the maximum capacity for each block of transactions is 1 MB.

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When you consider the average Bitcoin transaction size,

play02:50

you’ll find that a block is able to hold about 2700 transactions.

play02:55

2700 transactions every 10 minutes means 4.6 transactions a second,

play02:59

and that’s not a lot.

play03:01

Visa, for comparison, can confirm 1,700 transactions per second.

play03:05

This means that when a lot of people want to send Bitcoin,

play03:08

during price rallies for example,

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transactions get stuck in a very long queue

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waiting to enter a block and get confirmed.

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Of course, Bitcoin allows you to pay a higher transaction fee

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if you want to jump the queue,

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but this might cause fees to reach ridiculous levels

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as more and more people try to “cut the line” with their transactions.

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This isn’t something you want to have happen

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if you’re building Bitcoin to become a global payment method.

play03:32

As a result of this scalability issue, two different camps emerged.

play03:35

The first camp was the “Big Blocks” camp.

play03:38

This camp was led by Chinese mining giant Bitmain and Roger Ver,

play03:42

an early Bitcoin investor

play03:43

who was involved with a number of startups

play03:45

when Bitcoin was just gaining initial adoption.

play03:48

Big blockers were afraid that Bitcoin’s scalability issue

play03:51

would prevent it from becoming what Satoshi Nakamoto,

play03:53

Bitcoin’s inventor, initially intended - a peer to peer payment system.

play03:58

With such long confirmation times and high fees,

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people wouldn’t use Bitcoin for day to day transactions

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and would instead treat it as a store of value - like gold.

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The supporters of this camp suggested a very simple solution -

play04:10

Let’s increase the block size.

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If we increase Bitcoin’s block size to 8mb,

play04:15

we’ll be able to confirm as many as

play04:16

8 times the number of transactions per second.

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And this will reduce the existing congestion of the network,

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and in the future

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we’ll increase the block size as much as needed

play04:24

as Bitcoin achieves further adoption.

play04:27

Opposing them was the “Small Blocks” camp.

play04:29

The supporters of this camp rooted for keeping the current 1mb block size,

play04:33

while finding solutions for optimizing transaction size and handling,

play04:37

in order to enable scaling.

play04:39

One such solution was Segregated Witness,

play04:42

or Segwit for short.

play04:44

Segwit is an upgrade to the Bitcoin protocol,

play04:46

which among other things effectively reduces the transaction size by 75%.

play04:51

This means that a 1mb Segwit block

play04:54

can hold the same amount of transactions

play04:56

as what would be a 4mb non-Segwit block.

play04:59

Additionally, Small Blockers talked about

play05:01

the development of the Lightning Network -

play05:03

A second layer on top of the Bitcoin protocol

play05:06

that allows for instant and feeless transactions.

play05:09

Now, the lightning network is a pretty broad topic on its own,

play05:11

so make sure to catch our Lightning Network episode

play05:14

for a detailed explanation on how it works.

play05:17

But why were the small blockers against increasing the block size

play05:20

to begin with?

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The reason is that small Blockers believe that in the long run

play05:24

this would hurt Bitcoin’s decentralization and functionality.

play05:27

Here are some of the arguments to justify their claim:

play05:30

For one, an 8mb or even 32mb block

play05:34

takes more time to travel through the network than a 1mb block.

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Additionally, once the block reaches a computer on the network,

play05:40

that computer now needs to verify all of the transactions

play05:43

inside that block.

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If the block is too big

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it might not be able to finish verifying all the transactions

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before the next block arrives within 10 minutes or so.

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This means the network will start lagging behind new transactions,

play05:55

which can create disputes about the current state of the Bitcoin ledger.

play05:59

On top of that, by not optimizing transactions,

play06:02

you’re also not optimizing the size of the Blockchain

play06:04

which already takes up several hundred Gigabytes.

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Forcing computers to verify oversized transactions,

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reduces the number of computers that can store the Blockchain

play06:12

on their hard drive,

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and therefore diminishes the network’s decentralization.

play06:17

I mean let’s think about it for a second:

play06:19

If only hi-end computers

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that are maintained by a handful of companies

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can validate transactions on the network,

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we’re basically taking away Bitcoin’s basic advantage -

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to have a large amount of participants

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to make sure no one is breaking the rules.

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To make it simple to understand, consider this analogy:

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Imagine a street that’s suffering from heavy traffic.

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The obvious solution would be to increase the number of lanes,

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effectively the same solution as increasing the block size.

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But what would you do

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once the street becomes more popular

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and even more cars come in?

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Eventually, there’s a limit to how many lanes you can add

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before running out of land to build it.

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On the other hand,

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you could reduce traffic congestion

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by promoting public transportation routes or carpooling.

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Solutions similar to optimizing the transaction size

play07:02

and how transactions are handled by the network.

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This heated argument between the two rival camps

play07:07

went on for several years until it climaxed in August of 2017.

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Back then, Bitcoin was making its first steps over the $1,200 mark

play07:15

and the network was getting pretty crowded

play07:17

due to an overflow of transactions.

play07:19

As a result,

play07:20

many transactions got delayed and transaction fees skyrocketed

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as people were outbidding each other to “cut in line”

play07:26

and get confirmed faster.

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The average fee around that time was as high as $37 per transaction!

play07:33

Now, you may be wondering why nobody took action

play07:35

to avoid this situation.

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Well, in order to answer this question

play07:38

we need to understand who actually decides anything

play07:41

on the Bitcoin network.

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You see, Bitcoin is decentralized

play07:45

and this means there’s no one person that decides anything.

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Participants in the network vote through their actions.

play07:51

Their vote is actually whatever version of the Bitcoin protocol

play07:54

they choose to run on their computer.

play07:56

There are several players in the Bitcoin network.

play07:58

First, there are the miners and mining pool operators.

play08:01

They are the ones in charge of creating blocks

play08:03

and updating the ledger of transactions.

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Some would argue that they have the ultimate say

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in what changes are finally accepted to the Bitcoin network.

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Then we have the developers,

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which are a group of individuals collaborating together

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to maintain Bitcoin’s source code.

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Some believe that this group has the ultimate power

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since they are the ones writing the actual code that runs the network.

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We also have exchanges,

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which are the gateways for cryptocurrency adoption.

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They can decide which version of Bitcoin to list under the ticker symbol BTC.

play08:31

They’re the ones who have the power of connecting people

play08:33

with the actual coins.

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Another important group are the wallet providers.

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They write software that allows users to manage their coins.

play08:42

Additionally we have the nodes,

play08:43

which are the different computers which run the Bitcoin code

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and make sure no one is breaking the rules.

play08:49

These nodes are the backbone of the Bitcoin network.

play08:51

Owners of the nodes can decide to only accept transactions

play08:54

that support specific changes.

play08:57

And finally, we have the Bitcoin users,

play08:59

who get to choose which coin to buy, which exchange to use

play09:02

and which wallet to download.

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Without even knowing it, they actually have the most power.

play09:08

The coin that users decide to adopt will have the brighter future.

play09:11

A good example for the power of user adoption

play09:13

is the case of Ethereum’s hard fork.

play09:16

Back in 2016,

play09:17

after several million dollars were stolen from an Ethereum based project

play09:20

called the DAO,

play09:21

the Ethereum developers suggested rolling back the Ethereum blockchain

play09:25

and erasing the malicious transaction.

play09:27

This created a heated debate,

play09:29

at the end of which Ethereum forked into two different coins -

play09:33

Ethereum and Ethereum Classic.

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However, what’s known today as Ethereum

play09:37

is actually the altered Ethereum version and not the original one.

play09:41

The reason that this is considered the “true” Ethereum

play09:43

is because that’s the coin most of the users decided to adopt.

play09:48

Miners, exchanges, wallet providers and even developers -

play09:51

all rely on the acceptance of the public to survive.

play09:55

That’s why in the end, the users have the final say.

play09:58

Now you understand

play09:59

why it’s so hard to get any change to the Bitcoin protocol approved.

play10:03

You basically need to get all of these groups to agree.

play10:06

Throughout Bitcoin’s history

play10:07

there have been several cases were such agreements were reached,

play10:10

but as the network grew larger it became harder to reach a consensus.

play10:13

Going back to our story in 2017,

play10:15

the end result of this Mexican standoff between the two camps was that

play10:19

each side did what they initially intended to do,

play10:21

leaving it to users to decide which coin to adopt as the true Bitcion.

play10:26

On August 1st, 2017

play10:28

Small blockers activated SegWit on the original Bitcoin protocol

play10:31

while big blockers created Bitcoin Cash -

play10:33

A Bitcoin fork with an 8mb block size.

play10:37

Initially it was unclear which version of Bitcoin would win,

play10:40

when “Winning” in cryptocurrency terms means having a longer blockchain,

play10:43

or ledger of transactions.

play10:45

The more miners a coin has on board means more computational power,

play10:48

hence a longer blockchain and a more robust network.

play10:52

Bitcoin Cash had support from mining giant Bitmain,

play10:54

and as a result the original Bitcoin’s hashing power was cut nearly in half

play10:58

when the fork occurred.

play11:00

However, when the dust settled

play11:01

it became clear that the original Bitcoin was still standing strong

play11:04

even after the fork.

play11:06

Since the fork,

play11:07

Bitcoin Cash has consistently maintained its space

play11:09

at the top of the cryptocurrency charts.

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The coin is backed mainly by Roger Ver,

play11:14

a liberterian that allegedly owns around 100,000 Bitcoins

play11:17

making him one of the first Bitcoin billionaires.

play11:20

Ver also purchased the domain name Bitcoin.com

play11:23

to promote Bitcoin Cash, as opposed to Bitcoin.org,

play11:26

which is the website for the original Bitcoin.

play11:29

Bitcoin Cash is mostly similar to Bitcoin, but with some exceptions:

play11:33

First, its block size is bigger.

play11:35

When it first started out,

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Bitcoin Cash’s block size was capped at 8mb.

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Later on the coin went through another update

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and its block size limit increased to 32mb.

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In practice,

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Bitcoin Cash isn’t as popular as Bitcoin

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and its blocks rarely surpass 1mb of transactions.

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Second, Bitcoin Cash does not support SegWit

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or the Lightning Network.

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And finally,

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Bitcoin Cash adjusts its mining difficulty for mining new blocks

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more quickly than the original Bitcoin.

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I won’t go into detail

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but it’s claimed that miners

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can actually manipulate this feature to create questionable advantages.

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While there are additional differences between the two coins,

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the ones I’ve just mentioned are the ones that are most notable.

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In November 2018,

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Bitcoin Cash went through its own hard fork.

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This time the two camps were the original Bitcoin Cash,

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also known as ABC,

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and Bitcoin SV - which stands for Satoshi’s Vision.

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Bitcoin ABC’s camp was led by Roger Ver and Bitmain.

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The Bitcoin SV camp was led by Craig Wright -

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a person who previously claimed to be Satoshi Nakamoto

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but never supplied ample proof,

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and Calvin Ayre,

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the owner of the largest Bitcoin Cash mining pool, CoinGeek.

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There are two main differences between the two Bitcoin Cash versions.

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Bitcoin ABC maintained a maximum block size of 32mb

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while Bitcoin SV increased its block size to 128mb

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with additional increases planned in future updates.

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Additionally, Bitcoin ABC added smart contract-like functionality

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into its code,

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while Bitcoin SV chose not to accept this change.

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For now it seems that Bitcoin ABC has become more popular

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and is considered by most as the “true” Bitcoin Cash.

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Before we conclude today’s extensive video

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I'd like to leave you with some food for thought.

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Sometimes the obvious solution to a problem

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isn’t necessarily the best one.

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Low transaction fees are important to the usability of Bitcoin,

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but not at all costs,

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and a quick fix often has unforeseen consequences.

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I mean, just imagine what life would be like

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if instead of investing in and developing file compression technologies,

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we would simply have to buy additional hard drives

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just to save all of our uncompressed documents,

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photos, videos, and projects to our computers.

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How much longer would it take to transmit those files

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along the internet to our friends, family, colleagues, or clients?

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Keeping this in mind,

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it would seem as though optimizing data within small blocks

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while maintaining decentralization will pay off in the long run.

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Adding to the block size might prove necessary,

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but it should be used sparingly.

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For now, the Bitcoin Cash hard fork saga

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stands as a testament

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to the decentralized nature of the Bitcoin network.

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It demonstrated how unbiased the system is,

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and how no single party can dictate what will happen,

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even when very powerful interest groups are involved.

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That’s it for today’s episode of Crypto Whiteboard Tuesday.

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Hopefully by now you understand what Bitcoin Cash is -

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A hard fork of Bitcoin’s protocol

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that created a new coin with a larger block size.

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You may still have some questions.

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If so, just leave them in the comment section below.

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And if you’re watching this video on YouTube,

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and enjoy what you’ve seen, don’t forget to hit the like button.

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Then make sure to subscribe to the channel

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and click that bell so that you’ll be notified

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as soon as we post a new episode.

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Thanks for watching me here at the Whiteboard.

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For 99bitcoins.com,

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I’m Nate Martin, and I’ll see you… in a bit.

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Related Tags
Bitcoin CashCryptocurrencyHard ForkBlockchainScalabilityDecentralizationTransaction FeesBitcoin ProtocolDigital PaymentsCrypto Debate