What is Ethereum?
Ethereum is a decentralized open-source platform officially launched in 2015, conceived by programmer Vitalik Buterin in 2014. It is based on blockchain technology and aims to go beyond simple digital currency transfers, supporting the building and running of smart contracts and decentralized applications (DApps), hence often referred to as "Blockchain 2.0." Ethereum provides a foundational infrastructure for global developers to build various innovative products and services.
Core Concepts and Development History
The core of Ethereum lies in its programmability, allowing developers to create and deploy smart contracts. These contracts are self-executing, immutable agreements that lay the groundwork for emerging applications such as Decentralized Finance (DeFi), Non-Fungible Tokens (NFTs), and Decentralized Autonomous Organizations (DAOs). Ethereum's native cryptocurrency is Ether (ETH), which, since its launch in 2015, has become the second-largest cryptocurrency by market capitalization, trailing only Bitcoin.
Key Upgrades and Milestones
The Ethereum network continuously evolves, having undergone a series of significant upgrades:
- "The Merge": On September 15, 2022, Ethereum completed its historic "Merge" upgrade, officially transitioning from a Proof-of-Work (PoW) consensus mechanism to Proof-of-Stake (PoS). This move significantly reduced the network's energy consumption by approximately 99.95%, greatly enhancing its sustainability.
- "Shanghai Upgrade" (Shanghai/Shapella): Implemented on April 12, 2023, this upgrade allowed for the withdrawal of previously staked Ether and its rewards on the Beacon Chain, further improving the flexibility and liquidity of the PoS mechanism.
- "Dencun Upgrade": On March 13, 2024, the Dencun upgrade introduced Proto-Danksharding (EIP-4844). By introducing a "blob" mechanism, this upgrade aims to significantly reduce transaction costs for Layer 2 networks, providing crucial support for Ethereum's scalability.
- Ethereum Spot ETF Approval: In May 2024, the U.S. Securities and Exchange Commission (SEC) approved Ethereum spot ETFs, making it the second cryptocurrency after Bitcoin to receive such financial products, marking further recognition of Ethereum by traditional financial markets.
Ethereum's future roadmap continues to focus on scalability, security, sustainability, and privacy, with planned upgrades including post-quantum security, single-slot finality, zkEVM, and statelessness.
Ether (ETH) Overview
Ether (ETH) is the fuel of the Ethereum network, used to pay transaction fees (Gas fees) and execute smart contracts. As of October 14, 2026, the price of ETH ranges between approximately $2348.56 and $2503.11, with a circulating supply of around 122,136,588 ETH, and a market capitalization between $286.206 billion and $305.211 billion. Although there is no hard cap on the supply of Ether, a deflationary mechanism was introduced after the London hard fork and EIP-1559 implementation in 2021, where a portion of Gas fees is permanently burned. According to data from May 2025, Ethereum's total market capitalization once reached $220 billion, with the latest market capitalization showing significant growth. As of October 2026, the average transaction fee on Ethereum has decreased to approximately $0.095.
Market Position and Competition
As a blockchain platform with a massive market capitalization, Ethereum faces fierce competition from newer networks (such as Solana and Tron), which often prioritize offering faster and more cost-effective solutions. Ethereum is widely regarded as a popular investment tool and store of wealth, but its price is influenced by various factors such as macroeconomic pressures, network activity, market sentiment, and competition, possessing inherent volatility.
How to Use Ethereum
Using the Ethereum ecosystem involves multiple aspects, from managing digital assets to participating in decentralized applications.
Creating an Account and Wallet
To use Ethereum, you first need an account. The simplest way to create and access an account is by using "wallet" software. These wallet applications, such as MetaMask, Argent, Rainbow, etc., allow users to interact with Ethereum accounts, manage Ether and other tokens, and connect to various decentralized applications (DApps). These wallets are typically non-custodial, meaning users have full control over their private keys and assets.
Acquiring Ether (ETH)
Users need to acquire Ether (ETH) to pay the "Gas fees" required for any operation on the Ethereum network, such as transferring funds or executing smart contracts. ETH can be purchased on major global cryptocurrency exchanges like Binance, Coinbase, Kraken, and OKX.
Main Uses and Application Scenarios
Ethereum's powerful capabilities give it a wide range of application scenarios:
- Digital Currency Transfers: Users can send or receive Ether and other Ethereum-based tokens without intermediaries.
- Smart Contracts: Developers can deploy and execute smart contracts to enable programmable transactions and automated protocols.
- Decentralized Applications (DApps): Ethereum is the foundation for running various DApps, covering multiple fields such as games, financial products, and digital collectibles.
- Decentralized Finance (DeFi): Users can perform token swaps, lending, asset management, and liquidity mining on Ethereum without traditional financial intermediaries.
- Non-Fungible Tokens (NFTs): Ethereum is the primary platform for issuing and trading NFTs, allowing users to create, collect, and trade unique digital assets such as art, collectibles, and virtual land.
- Decentralized Autonomous Organizations (DAOs): Through on-chain voting and governance tokens, community members can collectively manage protocols or projects.
- Staking: Users can earn rewards by staking ETH and contribute to the security of the Ethereum PoS network.
- Layer 2 Networks: To address the scalability challenges of the Ethereum mainnet, users can leverage Layer 2 networks built on top of it (such as Arbitrum, Optimism, zkSync, Linea, Base) for faster and cheaper transactions.
