What is Ethereum (ETH)?

Ethereum is a decentralized, open-source blockchain platform that enables the creation and execution of smart contracts and decentralized applications (DApps). Ethereum has played a significant role in the growth of blockchain technology, serving as a foundation for a wide range of decentralized applications across various industries. Its flexibility and ability to support a diverse array of applications have contributed to its popularity in the blockchain space. Ethereum's main features and characteristics include:

Smart Contracts: Ethereum enables the coding of contract rules into the blockchain, which get automatically executed when certain conditions are met. This lays the foundation for decentralized applications and financial services.

Decentralized Apps: Ethereum is a broad development platform that allows developers to build and deploy decentralized apps on its blockchain. These DApps can access blockchain data and are censorship resistant.

Ether: Ether is the native cryptocurrency of the Ethereum network used to pay for the execution fees of smart contracts. It provides an incentive mechanism in Ethereum's economic system.

History of Ethereum (ETH)

Who Created Ethereum?

In late 2013, Vitalik Buterin, one of the co-founders of Ethereum, conceived the idea and subsequently published the introductory paper in 2014. The actual development commenced early that year, leading to the official launch of the network on July 30, 2015.

Notable individuals like Gavin Wood, Charles Hoskinson, Amir Chetrit, Anthony Di Iorio, Jeffrey Wilcke, Joseph Lubin, and Mihai Alisie are collectively recognized as co-founders of Ethereum alongside Vitalik Buterin.

History

Conception (2013-2014): Ethereum was proposed by Vitalik Buterin, a programmer and cryptocurrency researcher, in late 2013. Buterin published the Ethereum white paper outlining the technical details and vision for the platform. The development team, including Buterin, Gavin Wood, and Joseph Lubin, officially announced Ethereum in January 2014.
Crowdfunding (2014): To fund the development of Ethereum, a public crowdfunding campaign was conducted in mid-2014. The Ethereum Initial Coin Offering (ICO) was one of the largest crowdfunding projects at the time.
Olympic Testnet (2015): Prior to the mainnet launch, Ethereum underwent a series of testnets to identify and fix potential issues. The Olympic testnet was the first, allowing developers to participate in a competition to find and address vulnerabilities. This helped prepare the network for the eventual launch of the mainnet.
Frontier (2015): Ethereum's mainnet, known as “Frontier", marked the beginning of Ethereum's blockchain, and users could start mining and trading Ether (ETH), the native cryptocurrency of the platform.
Homestead (2016): The Homestead upgrade, implemented in 2016, aimed to stabilize the Ethereum platform after the experimental phase of Frontier. It introduced protocol improvements and enhanced security features.
The DAO and the Split (2016): In June 2016, a decentralized autonomous organization (DAO) built on the Ethereum platform suffered a significant hack, leading to the loss of a large amount of Ether. In response, the Ethereum community made a controversial decision to hard fork the blockchain, resulting in the creation of two separate chains: Ethereum (ETH) and Ethereum Classic (ETC).
Metropolis (Byzantium and Constantinople) (2017-2019): The Metropolis upgrade was divided into two phases—Byzantium and Constantinople. Byzantium was implemented in October 2017, and Constantinople followed in February 2019. These upgrades introduced various improvements, including enhanced security, scalability, and the transition from a proof-of-work (PoW) to a proof-of-stake (PoS) consensus mechanism (though the full transition to PoS was deferred).
The Beacon Chain (2020): The Ethereum Beacon Chain is the name of the original proof-of-stake blockchain that was launched in 2020. It was created to ensure the proof-of-stake consensus logic was sound and sustainable before enabling it on Ethereum Mainnet.
The Merge (2022): The Merge was executed on September 15, 2022, and marked the end of proof-of-work for Ethereum, officially deprecating proof-of-work and transitioning to proof-of-stake consensus.

How Does Ethereum Work?

Ethereum is a decentralized blockchain platform that enables users to make transactions, execute smart contracts, and build decentralized applications (DApps) using the native Solidity scripting language and Ethereum Virtual Machine.

Blockchain Technology

The Bitcoin network operates using blockchain technology. A blockchain is a continuously growing public distributed ledger that records all Bitcoin transactions. It is composed of a series of blocks, with each block containing the encrypted hash of the previous block, a timestamp, and transaction data. Bitcoin nodes use the blockchain to verify the legitimacy of transactions and prevent double spending.

Proof-of-Stake

Ethereum's consensus mechanism is proof-of-stake, where a network of participants called validators creates new blocks and works together to verify the information they contain.

Smart Contract

An Ethereum smart contract is a self-executing contract with the terms of the agreement directly written into code. These contracts run on the Ethereum blockchain, a decentralized and distributed network of computers. Ethereum's smart contracts are a key feature that sets it apart from other blockchain platforms.

Ethereum Virtual Machine (EVM)

EVM executes the smart contract bytecode on the network. It provides a runtime environment with memory and storage for smart contract execution. The EVM ensures deterministic execution.

Ether

Ethereum's native token is Ether (ETH), which is required to make transactions and execute smart contracts on Ethereum.

Tokenomics

Transaction Fees

Ether is used to pay for transaction fees on the Ethereum network. Whenever someone initiates a transaction or executes a smart contract, they need to pay a certain amount of Ether to incentivize miners to validate and process the transaction.

Smart Contracts Execution

Ether is required to execute and run smart contracts on the Ethereum blockchain. Smart contracts are self-executing contracts with the terms of the agreement directly written into code. Ether is used to fuel the computational steps involved in executing these contracts.

Staking and Network Security

Ether can be staked in the network's proof-of-stake consensus mechanism. Users can lock up a certain amount of Ether as a stake, contributing to the security and operation of the network. In return, they may receive rewards in the form of additional Ether.

Incentives

As mentioned earlier, Ethereum provides rewards to individuals who stake their Ethereum for a specific duration. Staking a minimum of 32 ETH qualifies someone to become a network validator, unlocking additional earnings from the network.

Allocation

According to the Ethereum whitepaper, the initial distribution allocated 16.7% to early contributors and 83.3% for a crowd sale.

Circulation

All Ethereum tokens are currently in circulation, with a total supply of over 120 Million.

What is the Ethereum Merge?

The Ethereum Merge is the process of transitioning the Ethereum blockchain from the current proof-of-work (PoW) consensus mechanism to a proof-of-stake (PoS) model. The Merge involves the joining of Ethereum's PoS Beacon Chain with the Ethereum Mainnet, which will make the network more energy-efficient and scalable. The PoS validators will replace miners in the process of block production and transaction validation. The Ethereum Merge is a significant update to the Ethereum network, and it is expected to reduce energy consumption by more than 99%.

When is the Ethereum Merge?

The Merge was executed on September 15, 2022.

What is the difference between Bitcoin and Ethereum?

Bitcoin and Ethereum are both popular cryptocurrencies, but they have fundamental differences in their purposes, underlying technology, and functionalities. Here are some key distinctions:

Purpose

Bitcoin (BTC): Created as a decentralized digital currency, Bitcoin's primary purpose is to serve as a peer-to-peer electronic cash system. It aims to provide a secure, borderless, and censorship-resistant medium of exchange.

Ethereum (ETH): Developed as a decentralized platform for building decentralized applications (DApps) and smart contracts. Ethereum's goal is to enable programmable, self-executing contracts and a wide range of applications beyond simple currency transactions.

Smart Contracts

Bitcoin: While Bitcoin transactions are programmable to some extent, it doesn't natively support the complex scripting capabilities found in Ethereum's smart contracts.

Ethereum: Smart contracts on Ethereum allow for the creation of decentralized applications (DApps) and automated agreements with a wide range of functionalities, from token creation to complex financial instruments.

Supply Limit

Bitcoin: Capped at 21 million coins, making it a deflationary asset. This scarcity is built into its protocol to mimic the scarcity of precious metals like gold.

Ethereum: No strict supply cap. Ethereum initially had no fixed supply limit, but it has since transitioned to a proof-of-stake consensus mechanism and potentially reduce new issuance.

Consensus Mechanism

Bitcoin: Uses proof-of-work (PoW) consensus, where miners solve complex mathematical puzzles to validate transactions and add new blocks to the blockchain.

Ethereum: Proof-of-Stake (PoS)

Highlights

Crowdfunding (2014)Ethereum conducted one of the earliest and most successful Initial Coin Offerings (ICOs) in 2014, raising over $18 million. This funding helped to support the development and launch of the platform.Frontier Release (2015)Ethereum's development went through multiple stages, and the first live release, called "Frontier," occurred on July 30, 2015. This marked the beginning of the Ethereum blockchain and the ability to mine Ether (ETH).The DAO Incident (2016)The Decentralized Autonomous Organization (DAO) was a complex smart contract on the Ethereum blockchain that held a significant amount of funds. In June 2016, it suffered a major exploit, leading to a controversial hard fork to reverse the effects of the hack. This resulted in the split between Ethereum (ETH) and Ethereum Classic (ETC).ICOs (2017)2017 was a significant year for Initial Coin Offerings (ICOs), and many projects chose to launch their tokens on the Ethereum blockchain using the ERC-20 standard.DeFi Boom (2020 onward)Ethereum has been a major platform for decentralized finance (DeFi) applications, leading to a surge in projects and protocols that offer various financial services without traditional intermediaries.NFT Craze (2021)Non-fungible tokens (NFTs) gained immense popularity in 2021, and Ethereum has been a primary blockchain for NFT issuance and trading. NFTs are unique digital assets, often representing digital art or collectibles.The merge (2022)The Merge was executed on September 15, 2022. It marked the end of proof-of-work for Ethereum and the start of a more sustainable, eco-friendly Ethereum.

데이터 프라이버시 해제: DApps를 위한 Web3 기반 ZK 증명 솔루션, NuLink 탐구