Ethereum - Wikipedia
This article has multiple issues. Please help improve it or discuss these issues on the talk page . This article relies too much on references to primary sources . Please improve this by adding secondary or tertiary sources . Some of this article's listed sources may not be reliable . Please help this article by looking for better, more reliable sources. Unreliable citations may be challenged or deleted. The Ethereum Project's logo, first used in 2014 Ethereum is an open-source , public, blockchain -based distributed computing platform featuring smart contract (scripting) functionality.  It provides a decentralized Turing-complete virtual machine , the Ethereum Virtual Machine (EVM), which can execute scripts using an international network of public nodes. Ethereum also provides a cryptocurrency token called "ether", which can be transferred between accounts and used to compensate participant nodes for computations performed.  "Gas", an internal transaction pricing mechanism, is used to mitigate spam and allocate resources on the network.   Ethereum was proposed in late 2013 by Vitalik Buterin , a cryptocurrency researcher and programmer. Development was funded by an online crowdsale between July and August 2014.  The system went live on 30 July 2015, with 11.9 million coins "premined" for the crowdsale.  This accounts for approximately 13 percent of the total circulating supply. In 2016, as a result of the collapse of The DAO project, Ethereum was forked into two separate blockchains - the new forked version became Ethereum (ETH), and the original continued as Ethereum Classic (ETC).    Ethereum was initially described in a white paper by Vitalik Buterin ,  a programmer involved with Bitcoin Magazine , in late 2013 with a goal of buildin Continue reading >>
A Laymans Guide To Ethereum: How It Works And Why It Matters
A laymans guide to Ethereum: how it works and why it matters While Bitcoin has been the landmark of cryptocurrency, Ethereum too has emerged from the shadows in the last few years as a worthy competitor. Proposed by Vitalik Buterin in 2013 and launched in 2015, Ethereum has taken the application of blockchain technology to new heights. While Ethereum is a cryptocurrency, it is not the same as Bitcoin. We take you through the basics of what Ethereum is, how it works, and why it matters. If you are new to the world of cryptocurrency, then you can refer to this basic guide before moving forward with this article. What is Ethereum and how is it different from Bitcoin? The first thing to know is that cryptocurrencies like Bitcoin or Ethereum are one of the many applications that are supported by blockchain technology, in the same way that email is only one of the many applications of the internet. Essentially a distributed public blockchain network that runs the programming code of decentralised applications (Dapps), Ethereum goes beyond being a cryptocurrency in terms of both purpose and ability. Bitcoin is a decentralised application that creates a P2P cash system, wherein users can transact in bitcoins. On the other hand, Ethereum allows developers to build and launch decentralised applications for any purpose of theirs, including creating their own cryptocurrencies. By distributing the processing power required to run these programmes between peers on the network, Ethereum essentially acts as a blockchain supercomputer. Moreover, due to the principle of consensus, apps on the network run exactly as programmed without any possibility of censorship, downtime, fraud, or third-party interference. The Ethereum network is fuelled by a currency called Ether. Not only is Ether Continue reading >>
Ethereum Vs Bitcoin: What's The Main Difference?
12/20/2016 08:56 am ETUpdatedDec 06, 2017 Ethereum Vs Bitcoin: What's The Main Difference? While Bitcoin has long been dominant in the cryptocurrency scene, it is certainly not alone. Ethereum is another cryptocurrency related project that has attracted a lot of hype because of its additional features and applications. The first thing about Ethereum is that it is not just a digital currency. It is a blockchain-based platform with many aspects. It features smart contracts, the Ethereum Virtual Machine (EVM) and it uses its currency called ether for peer-to-peer contracts. Ethereum's smart contracts use blockchain stored applications for contract negotiation and facilitation. The benefit of these contracts is that the blockchain provides a decentralized way to verify and enforce them. The decentralized aspect makes it incredibly difficult for fraud or censorship. Ethereum's smart contracts aim to provide greater security than traditional contracts and bring down the associated costs. The smart contract applications are powered by ether, Ethereum's blockchain based cryptocurrency. Ether, as well as other crypto-assets, are held in the Ethereum Wallet, which allows you to create and use smart contracts. The system has been described by the New York Times as.. "a single shared computer that is run by the network of users and on which resources are parceled out and paid for by ether." Implement Smart Contracts With Your Own Cryptocurrency Ethereum allows you to create digital tokens that can be used to represent virtual shares, assets, proof of membership and more. These smart contracts are compatible with any wallet, as well as exchanges that use a standard coin API. You can copy the code from Ethereum's website and then use your tokens for many purposes, including the repr Continue reading >>
What Is Ethereum? A Step-by-step Beginners Guide
If you want to know what is Ethereum and how it works and what it can be used for, without going deep into the technical abyss, this guide is perfect for you. Important Note: This guide assumes a basic understanding of blockchain technology. If youre unfamiliar with blockchain, check out this step by step introduction for beginners . Beyond Bitcoin & first generation decentralized applications Although commonly associated with Bitcoin , blockchain technology has many other applications that go way beyond digital currencies. In fact, Bitcoin is only one of several hundred applications that use blockchain technology today. [Blockchain] is to Bitcoin, what the internet is to email. A big electronic system, on top of which you can build applications. Currency is just one. Sally Davies, FT Technology Reporter Until relatively recently, building blockchain applications has required a complex background in coding, cryptography, mathematics as well as significant resources. But times have changed. Previously unimagined applications, from electronic voting & digitally recorded property assets to regulatory compliance & trading are now actively being developed and deployed faster than ever before. By providing developers with the tools to build decentralized applications, Ethereum is making all of this possible. At its simplest, Ethereum is an open software platform based on blockchain technology that enables developers to build and deploy decentralized applications. Is Ethereum similar to Bitcoin? Well, sort of, but not really. Like Bitcoin , Ethereum is a distributed public blockchain network. Although there are some significant technical differences between the two, the most important distinction to note is that Bitcoin and Ethereum differ substantially in purpose and capabil Continue reading >>
Is Ethereum Better Than Bitcoin? Why Or Why Not? Is It Like Comparing Apples To Oranges?
Bitcoins sole purpose is to be the virtual currency of the internet, and uses blockchain to do this. Ethereum was created in 2015 by a man called Vitalik Buterin. Vitalik had the vision of not only having a decentralised cryptocurrency (like Bitcoin) but also allowing decentralised applications to be created on the Ethereum blockchain that use Smart Contracts. The whole idea of blockchain is to remove the power from the third parties and allow the user to control their own data. Ethereum is a decentralized platform that runs smart contracts: applications that run exactly as programmed without any possibility of downtime, censorship, fraud or third-party interference. These apps run on a custom built blockchain, an enormously powerful shared global infrastructure that can move value around and represent the ownership of property. This enables developers to create markets, store registries of debts or promises, move funds in accordance with instructions given long in the past (like a will or a futures contract) and many other things that have not been invented yet, all without a middle man or counterparty risk. To understand this better, Im going to give an example of how decentralised apps and smart contracts will change the world we live in: Ill use pizza as my example, because everyone can relate to pizza! Say you wanted to order pizza to your house, you have to create an account, enter your banking details and give the app your address to receive your pizza. Many people overlook the risks that are associated with trusting a third party to handle such sensitive data. If this companys serves are hacked into, the hacker will have your bank details and your address Scary stuff. So, you ordered a chicken BBQ pizza, which is everyones favorite, and they turn up with a ham Continue reading >>
What Is Ethereum: The All Purpose Blockchain?
Crypto and Blockchain Enthusiast, Entrepreneur, check out my website @ www.Crypt0Bits.com What is Ethereum: The All Purpose Blockchain? Many of the services we use today have one thing in common: they are governed by a central body. When we deposit money into our bank, we trust our bank to keep our money safe. When we purchase insurance, we trust insurance companies to deliver on our agreed terms. Similarly, with our Gmail accounts, we trust Google to store our personal information securely and to maintain our privacy. The centralized model has been a business standard for hundreds of years, but history has proven that it has many flaws. Governments have a mixed track record of influencing third party services for information (Remember when the US government tried to woo over Silicon Valley?). Centralized business models offer convenience, but having a single point of failure makes them vulnerable to attacks as we repeatedly see in security breaches like the Yahoo! hack and, most recently, with Equifax . Ethereum is an open-source, decentralized platform using blockchain technology that enables the development of decentralized applications and smart contracts. Decentralized applications have no middlemen and users interact all in a peer-to-peer fashion. Smart contracts are business logic coded into programs that are capable of automating, facilitating, executing and enforcing terms of agreements. Ethereums blockchain connects thousands of computers (known as nodes) around the world, forming a massive, many times mirrored world computer. Anyone can access it, upload programs, and execute programs on. Ethereum was designed to apply blockchain technology to applications beyond payments. Its platform improves upon Bitcoins as a programmable general purpose blockchain that Continue reading >>
What Is Ethereum? What Is Ethereum Mining & How Does It Work?
What is Ethereum? What is Ethereum Mining? Jordan Tuwiner Last updated July 13, 2017 Ethereum is more than a cryptocurrency. Its an open source shared world computing platform. A world computer that allows for the decentralized verification of transactions for any Turing-viable implementation. Thanks to Ethereum, Blockchain technologies are now easy to employ without having to reinvent the wheel. It is clear that Ethereum grew out of desire to apply Bitcoin/Blockchain concepts to realms outside of money. As a result, it provides open source platform to developers who seek to write decentralized applications. This appeals to developers who seek an easy introduction to Blockchain projects A series of innovative features definite Ethereum. As a result of its extended capabilities, Ethereum comes with two types of accounts . EOA, or Externally Owned Accounts, provide bitcoin-like capabilities such as providing a balance that is secured by private keys. Contract Accounts provide the Turing Complete room for application development that makes the protocol so desirable. These accounts are used as holding objects to constitute Smart-contracts which provide Ethereums capability for accommodating decentralized autonomous organizations; a way of structuring organizations without a vulnerable center. Most importantly, Ethereum capitalizes on the realization that consensus allows for currency and currency allows for consensus by providing economic incentive. As such, verifications are paid for on a pay-per-use basis, a system that replaces mining as we know it from Bitcoin. Ethereum right now uses PoW mining to secure its chain. Vitalik Buterin, the creator of Ethereum, stressed that his idea was fueled by the desire to [Avoid] the swiss-army knife protocol . That is to say that us Continue reading >>
How Ethereum Works - Coindesk
CoinDesk Launches 2017 Year in Review Opinion and Analysis Series Now that we've covered what ethereum is, let's dive deeper into how the platform functions under the hood. Consider the online notebook application described in " What is Ethereum? " Using ethereum, the appdoesn't require one entityto store and control its data. To accomplish this, ethereum borrows heavily from bitcoin's protocol and its blockchain design, but tweaks it to support applications beyond money. Ethereum aims to abstract away bitcoin's design, however, so that developers can create applications or agreements that have additional steps, new rules of ownership, alternative transaction formats or different ways to transfer state. The goal of ethereum's 'Turing-complete' programming language is to allow developers to write more programs in which blockchain transactions could govern and automate specific outcomes. This flexibility is perhaps ethereum's primary innovation, as explained in the guide " How Ethereum Smart Contracts Work ". The structure of the ethereum blockchain is very similar to bitcoin's, in that it is a shared record of the entire transaction history. Every node on the network stores a copy of this history. The big difference withethereum is that its nodes store the most recent state of each smart contract, in addition to all of the ether transactions. (This is much more complicated than described, but the text below should help you get your feet wet.) For each ethereum application, the network needs to keep track of the 'state', or the current information of all of these applications, including each user's balance, all the smart contract code and where it's all stored. Bitcoin uses unspent transaction outputs to track who has how muchbitcoin. While it sounds more complex, the id Continue reading >>
Okay, Wtf Is Ethereum?
A beginners guide to the worlds second most popular cryptocurrency. By now, chances are pretty good that you've heard of bitcoin, the cryptocurrency unleashed on the world in 2009 by a mysterious person or group that goes by Satoshi Nakamoto. Maybe you've heard it's the currency that fuels massive darknet drug markets like the now-defunct Silk Road . Or maybe your encounter with the cryptocoin was more benign and you saw one of the weird looking bitcoin ATMs in a convenience store. But unless you're already pretty involved in the cryptocurrency world, you may not have heard of ethereum, the second largest crypto asset that's recently been giving bitcoin a run for its virtual money. Even if you have heard of ethereum, you may be at a loss when it comes to explaining how it differs from bitcoin. In either case, you've come to the right place. Ethereum is often touted as a "world computer." What that fancy language really means is that ethereum is a platform for the creation of decentralized applications (dapps), using what are known as smart contracts . Smart contracts are bits of code that automatically execute an action after certain requirements have been metsay, sending a slice of an app's profits to investors after a predetermined date has passed. Bitcoin has smart contracts, too, but ethereum makes them really easy to use since they're baked into the system's design. All of this takes place on a blockchain, which bitcoin uses, too. All a blockchain does is act as a public ledger that lists everything that goes on in the network in real-time. It's the tool that makes the whole thing possible. The blockchain, and thus the ethereum network, is distributed across thousands of computers (or "nodes") around the world. It's also "Turing complete," which means that smart c Continue reading >>
Bitcoin Vs Ethereum: Driven By Different Purposes
Bitcoin Vs Ethereum: Driven by Different Purposes Ethereum has received a lot of attention since its announcement at the North AmericanBitcoinConference in early 2014 byVitalikButerin. The natural consequence of its rising popularity has been its constant comparison toBitcoin, the first virtual currency. It is important for investors to understandthe similarities and differences between BitcoinandEthereum. Bitcoin, the first virtual currency, was born seven years back. It introduced a novel idea set out in a white paper by the mysterious SatoshiNakamoto:Bitcoinoffers the promise of lower transaction fees than traditional online payment mechanisms and is operated by a decentralized authority, unlike government issued currencies . There are no physicalBitcoins , only balances associated with public and private keys. Over these years, the acceptance of the concept of a virtual currency has increased among regulators and government bodies.Althoughit isnt a formally recognized medium of payment or store of value, it has managed a niche for itself and continues to coexist in the financial system despite being regularly scrutinized and debated. The attempts to understandBitcoinmoreclosely resulted in the discovery of blockchain , the technology that powers it. Theblockchainis not just the hottest topic in theFinTechworld but also asought after technology in many industries. Ablockchainis a public ledger of all transactions in a given system that have ever been executed. It is constantly growing as completed blocks are added to it. The blocks are added to theblockchainin linear, chronological order through cryptography, ensuring they remain beyond the power of manipulators. Theblockchainthus stands as a tamper-proof record of all transactions on the network, accessible to all Continue reading >>
What Can You Do With It
The purpose of this page is to serve as an introduction to the basics of Ethereum that you will need to understand from a development standpoint, in order to produce contracts and decentralized applications. For a general introduction to Ethereum, see the white paper , and for a full technical spec see the yellow papers, although those are not prerequisites for this page; that is to say, this page is meant as an alternative introduction to Ethereum specifically targeted toward application developers. Ethereum is a platform that is intended to allow people to easily write decentralized applications (apps) using blockchain technology. A decentralized application is an application which serves some specific purpose to its users, but which has the important property that the application itself does not depend on any specific party existing. Rather than serving as a front-end for selling or providing a specific party's services, a app is a tool for people and organizations on different sides of an interaction use to come together without any centralized intermediary. Even necessary "intermediary" functions that are typically the domain of centralized providers, such as filtering, identity management, escrow and dispute resolution, are either handled directly by the network or left open for anyone to participate, using tools like internal token systems and reputation systems to ensure that users get access to high-quality services. Early examples of apps include BitTorrent for file sharing and Bitcoin for currency. Ethereum takes the primary developments used by BitTorrent and Bitcoin, the peer to peer network and the blockchain, and generalizes them in order to allow developers to use these technologies for any purpose. The Ethereum blockchain can be alternately described a Continue reading >>
Top 10 Differences Between Bitcoin And Ethereum Blockmatics Medium
Co-founder Blockmatics, blockchain director at LOOMIA Top 10 Differences between Bitcoin andEthereum Currency issuance: Bitcoin creates 12.5 new bitcoins every 10min (or 75/hr) while Ethereum creates 3 new ether every 15 seconds (or 720/hr). Currency cap: Bitcoin is limited to 21 million bitcoins, of which 16.7m have been created so far. Ethereum has no hard cap currently, but there are plans to reduce or stop issuance in a year or two. There are currently 96.4m ethers. Bitcoin creates a new block every 10 minutes (on average). Ethereum creates a new block every 15 seconds. While bitcoin has a scripting language built in, its very limited in functionality with only a few dozen operations. Ethereum has a full general-purpose language integrated (known in computer-speak as Turing-complete). Programs written in this built in language are known as smart contracts. Ethereum assigns a cost, known as gas, to every operation or use of storage on the blockchain. Bitcoin transaction costs are based simply on their size. Each block in bitcoin is limited to 1MB in size (or 8BM in the case of Bitcoin Cash). In Ethereum, blocks are capped by the gas-limit, the total overhead of all the operations in the block. In practice bitcoin can process 4 transactions per second, Ethereum roughly 15. Ethereum smart contract code lives at its own address on the blockchain as opposed to being within a transaction as in the case of Bitcoin. Therefore Ethereum has two account types, one to hold user funds, the second to hold computer code. Ethereum includes blocks that are valid but were outpaced by another newly accepted block. These almost-accepted blocks are known as uncles and their incorporation provides added security to the chain and allows Ethereum to have shorter block times. Bitcoins hash Continue reading >>
What Is Ether?
Ether is a necessary element a fuel for operating the distributed application platform Ethereum. It is a form of payment made by the clients of the platform to the machines executing the requested operations. To put it another way, ether is the incentive ensuring that developers write quality applications (wasteful code costs more), and that the network remains healthy (people are compensated for their contributed resources). If you just want to test the technology, you probably don't need real ether. Download the latest Wallet app and switch to the Test Network Check your ether presale balance safely here: The total supply of ether and its rate of issuance was decided by the donations gathered on the 2014 presale. The results were roughly: 60 million ether created to contributors of the presale 12 Million (20% of the above) were created to the development fund, most of it going to early contributors and developers and the remaining to the Ethereum Foundation 5 ethers are created every block (roughly 15 seconds) to the miner of the block 2-3 ethers are sometimes sent to another miner if they were also able to find a solution but his block wasn't included (called uncle/aunt reward) Note that after the Byzantium update is implemented, the mining and uncle reward is reduced to 3 ethers and 0.625-2.625 ethers, respectively. No. According to the terms agreed by all parties on the 2014 presale, issuance of ether is capped at 18 million ether per year (this number equals 25% of the initial supply). This means that while the absolute issuance is fixed, the relative inflation is decreased every year. In theory if this issuance was kept indefinitely then at some point the rate of new tokens created every year would reach the average amount lost yearly (by misuse, accidental key Continue reading >>
Everything Youve Ever Wanted To Know About Ethereum, Patiently Explained
Everything youve ever wanted to know about Ethereum, patiently explained Although Bitcoin and Ethereum are terms that are often paired together, the reality is that they are vastly different.The only thing Ethereum shares with Bitcoin is that its a cryptoasset running on top of blockchain. Instead of being just a cryptocurrency, like Bitcoin, Ethereum also has features which effectively makes it a huge decentralized computer. To understand Ethereum , one must understand how blockchain works. If you already understand it, or have already read my ultimate guide to understand blockchain , feel free to go directly to the next section. A blockchain, simply put, is a database. Its an ever growing database of certain kind of data and has quite remarkable properties: Once data is stored in the database, it can never be modified or deleted. Every record on a blockchain is permanent for eternity. No single individual or organization maintains the database; several thousand individuals do, and everyone has a copy of the database with themselves. To understand how several people are able to keep their copies of the database in sync with everyone else, imagine there are ten individuals in a network. Everyone is sitting with an empty file folder and an empty page in front of them. Whenever anyone does something important in the network, like transferring money, they announce it to everyone in the network. Everyone makes a note of the announcement on their pages until the page is filled. When it does, everyone has to seal the contents of the page by solving a mathematical puzzle. Solving the mathematical puzzle ensures that everyones page had same contents and that they can never be modified. Whoever does it first, gets rewarded with some amount of cryptocurrency. Note: Want to know Continue reading >>
How Ethereum Mining Works
Today, miners play an important role in making sure ethereum works. This role isn't immediately obvious, though. Many new users think that the sole purpose of mining is to generate ethers in a way that doesn't require a central issuer (seeour guide" What is Ether? "). This is true. Ethereum's tokens are created through the process of mining at a rate of 5 ether per mined block. But mining also has another at least asimportant role. Usually, banks are in charge of keeping accurate records of transactions. They ensure that money isn't created out of thin air, and that users don't cheat and spend their money more than once. Blockchains, though, introduce an entirely new way of record-keeping, one where the entire network, rather than an intermediary, verifies transactions and adds them to the public ledger. Although a 'trustless' or 'trust-minimizing' monetary system is the goal, someone still needs to securethe financial records, ensuring that no one cheats. Mining is one innovation that makes decentralized record-keeping possible. Miners come to consensus about the transaction history while preventing fraud (notably the double spending of ethers) an interesting problem that hadnt been solved in decentralized currencies before proof-of-work blockchains. Although ethereum is looking into other methods of coming to consensus about the validity of transactions, mining currently holds the platform together. Today, ethereum's mining process is almost the same as bitcoins . For each block of transactions, miners use computers to repeatedly and very quickly guess answers to a puzzle until one of them wins. More specifically, the miners will run the blocks unique header metadata (including timestamp and software version) through a hash function (which will return a fixed-length, Continue reading >>