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What Is Ethereum | Ethereum Blockchain Explained


Ethereum Blockchain-A Beginner's Guide-:

What Is Ethereum BlockChain. I seen that it is the 2nd largest cryptocurrency around but i just can't seem to wrap my head around it ,is it as revolutionary as Bitcoin? Can it actually change the world as we know it? If you want to have a better understanding of Ethereum but are tired of explanations that sound like complete technical gibberish, stick around here on Bitcoin whiteboard Tuesday or should I say Ethereum whiteboard Tuesday we'll answer these questions and more. 

What Is Bitcoin? Quick Recap-:

What Is Bitcoin?

Before we get into ethereum, we need to do a quick recap about Bitcoin since it's the basis from which Ethereum was born by now, you probably know that Bitcoin is a form of decentralized money, and if you still have some questions about what that means or how it works, then you might consider revisiting our original video. What is Bitcoin? Before Bitcoin was invented, the only way to use money digitally was through an intermediary like a bank or PayPal. Even then, the money used was still government issued and controlled currency. However, Bitcoin changed all that by creating a decentralized form of currency that individuals could trade directly without the need for an intermediary each. Bitcoin transaction is validated and confirmed by the entire Bitcoin network. There's no single point of failure, so the system is virtually impossible to shut down, manipulate or control. Pretty neat, huh? Well, now that we know that money can be decentralized, what other functions of society that are centralized today would be better served on a decentralized? What about voting? Voting requires a central authority to count and validate votes, real estate transfer records currently use centralized property registration authorities. Social networks like Facebook are based on centralized servers that control all of the data we upload to them. What if we could use the technology behind Bitcoin? More commonly known as blockchain to decentralize other things as well, the interesting thing about blockchain technology is that it's actually the byproduct of the Bitcoin invention. 

What Is Blockchain?

Blockchain technology was created by fusing already existing technologies like cryptography, proof of work and decentralized network architecture together in order to create a system. That can reach decisions without a central authority. There was no such thing as blockchain technology before Bitcoin was invented, but once Bitcoin became a reality, people started noticing how and why it works and named this thing blockchain technology. Blockchain is to Bitcoin what the Internet is to e-mail. System on top of which you can build applications and programs. A currency like Bitcoin is just one of the options, so this got people very excited and they began to explore what else can we decentralize. However, in order for a system to be truly decentralized, it needs a large network of computers to run it back. Then the only network that. Distant was Bitcoin and it was pretty limited. Bitcoin is written in what is known as a Turing incomplete language, which makes it understand only a small set of orders, like who sent how much money to whom. If you want to create a more complex system, you'll need a different programming language, which means a different network of computers.

HERE-: you can read more about bitcoin 

The Ethereum Network-:

Imagine for a second. We wanted to build your own decentralized program, just like Bitcoin at home. You need to understand how Bitcoins decentralization works. Write code that mimics the same behavior. Get a huge network of computers to run this code, and so on. And that is a lot of work. Enter ethereum. Ethereum was first proposed in late 2013. And then brought to life in 2014 by Vitalik Buterin(EthereumFounder),who at the time was the cofounder of Bitcoin magazine, ethereum is that do-it-yourself platform for decentralized programs, also known as Dapps(decentralized applications). If you want to create a decentralized program that no single person controls, not even you, even though you wrote it. All you have to do is learn the Ethereum programming language called Solidity and begin coding. The Ethereum platform has thousands of independent computers running it, meaning it's fully decentralized. Once a program is deployed to the Ethereum network, these computers, also known as nodes, will make sure it executes as written. Ethereum is the infrastructure,running Dapps worldwide, it's not a currency, it's a platform. The currency used to incentivize the network is called Ether(cryptocurrency), but more on that later. Ethereum's goal is to truly decentralize the Internet. Wait, the Internet is centralized. I thought the Internet already was decentralized and that anyone can start their own site.

Centralization Of Internet-:

While in theory that might be true in practice. Amazon, Google, Facebook, Netflix and other Giants control most of the World Wide Web as we know it. There's almost no activity on the web that happens without some sort of. Intermediary or third party, but once the concept of digital-decentralization was demonstrated by Bitcoin, a whole new array of opportunities became available. We can finally start to imagine and design an Internet that connects users directly, without the need for a centralized third party. People can rent hard drive space directly to other people. And make Dropbox obsolete. Drivers can offer services directly to passengers and remove Uber as the middleman. People can buy cryptocurrencies directly from one another without the need for an exchange that can get hacked or steal your money. Ethereum allows people to connect directly with each other without a central authority. To take care of things. It's a network of computers that together combine into one powerful decentralized supercomputer. OK, so now you know what ethereum does, but we haven't touched upon how it does it.

How Ethereum Works-:

Ethereum's coding language solidity is used to write smart contracts that are the logic that runs dabs. Let me explain. In real life all the contract is is a set of ifs and thence meaning a set of conditions and actions for example. If I pay my landlord $1500 on the first of the month, then he lets me use my apartment. That's exactly how smart contracts work on Ethereum. Ethereum developers write the conditions for their program or DAP, and then the Ethereum network executes it. They're called smart contracts because they deal with all of the aspects of the contract enforcement management performance. And payment. For example, if I have a smart contract that is used for paying rent, the landlord doesn't need to actively collect the money. The contract itself knows if the money has been sent. If I indeed sent the money, then I'll be able to open my apartment door. If I missed my payment, I'll be locked out. However, smart contracts also have their downsides. 

Smart Contracts-:

Smart Contract

Going back to my previous example, instead of having to kick out a renter that isn't paying a smart contract would lock the non paying renter out of their apartment. A truly intelligent contract, on the other hand, would take into account other factors as well, such as extenuating circumstances. The spirit with which the contract was written, and it would also be able to make exceptions if warranted. In other words, it would act like a really good judge instead, a smart contract in the context of Ethereum is not. Intelligent at all. It's actually uncompromisingly letter strict. It follows the rules down to AT and can't take any secondary considerations or the spirit of the law into account like what commonly happens with real-world contracts once a smart contract is deployed on the Ethereum network, it cannot be edited or corrected even by its original author. It's immutable. The only way to change this contract would be to convince the entire Ethereum network that a change should be made, and that is virtually impossible. This creates a very serious problem, since unlike Bitcoin, Ethereum was built with the ability to create really complex contracts, and complex contracts are very difficult. Secure with any contract, the more complicated it is, the harder it is to enforce as more room is left for interpretations or more clauses must be written to deal with contingencies. With smart contracts, security means handling with perfect accuracy every possible way in which a contract could be executed in order to make sure that the contract. Is only what the author intended. 

Ethereum Was Launched With The Idea Code Is Law-:

Ethereum launched with the idea that code is law, that is a contract on Ethereum Blockchain is the ultimate authority, and nobody could overrule the contract. Well, that all came to a crashing halt when the DAO event happened. 

DAO(Decentralized Autonomous Organization)-:

DAO stands for decentralized autonomous organization, which allowed users to deposit money and get returns based on the investments that the DAO made. The decisions themselves would be crowdsourced and decentralized. The DAO  raised $150 million in Ethereum currency either when Ether was trading at around $20. While this all sounded very good, the code wasn't secured very well and resulted in someone figuring out a way to drain the DAO out of money. Now you could say that the person who drained the Dow was a hacker, but some would argue that this was just someone who was taking advantage of the loopholes he found in the DAO smart contract. And this isn't very different than a creative lawyer figuring out. the loophole in the current law to  affect a positive result for his client. What happened next is that the Ethereum community decided that code no longer is law and changed the Ethereum rules in order to revert all the money that went into the DAO In other words, the contract writers and investors did something stupid and the Ethereum developers decided to bail them out. 

The Ethereum Fork-:

The small minority that didn't agree with this move stuck to the original Ethereum blockchain before its protocol was altered, and that's how Ethereum classic was born, which is actually the original ethereum. We've covered a lot up until now and the last thing I want to talk about is ethereum. As a currency, we've already established that Ethereum BlockChain is basically a large bunch of computers working together, like one supercomputer to execute code that powers dafs. However, this costs money, money to get the machines to power them up, store them, and cool them if needed. That's why Ether was invented. 

Ether Price-:

Ether Price

When people talk about Ethereum Price, they actually are referring to ether, the currency that incentivizes people to run the Ethereum protocol on their computer. This is very similar to the way Bitcoin miners get paid for maintaining the Bitcoin blockchain in order to deploy a smart contract to the Ethereum platform. Its author must pay to do so. That payment is made in the form of ether. This is done so that people will write optimized and efficient code and won't waste the Ethereum network computing power on unnecessary tasks. 

Ethereum ICO-:

Ether was first distributed in Ethereum's original initial coin offering back in 2014. Back then it cost around 40. Tends to buy one ether today, one ether is valued in the hundreds of dollars since the use of the Ethereum network has grown immensely due to the ICO hype that started in 2017. Still confused. Don't worry, we'll get more into ether and mining in a later Article. Ethereum's network and ether are a whole new rabbit hole that will cover. I think this will do for now as an intro to ethereum.  Hopefully by now you have a better understanding of what ethereum  or 'Ethereum Blokchain' or 'Ethereum Platform' is. A network of computers working together to replace the centralized model of programs and companies which run the Internet today. You may still have some questions. If so, just leave them in the comments section. 

Thank You.

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