How Is Ethereum Different From Bitcoin?
While Bitcoin focuses on being a store of value and payment network, Ethereum is designed as a programmable platform. Developers can build applications on Ethereum using smart contracts — self-executing code that runs exactly as programmed. This enables DeFi protocols, NFT marketplaces, DAOs, and thousands of other applications that would be difficult or impossible on Bitcoin's more limited scripting language.
What Is Ethereum's Proof of Stake System?
Ethereum transitioned from proof-of-work to proof-of-stake in September 2022 ("The Merge"), reducing energy consumption by over 99%. Validators now stake 32 ETH as collateral to propose and verify blocks. This system rewards honest validators with ETH and penalizes malicious behavior by slashing staked funds. Proof of stake makes Ethereum more energy-efficient and accessible to participants.
What Are Ethereum Gas Fees?
Every transaction on Ethereum requires a fee called gas, paid in ETH. Gas compensates validators for processing and securing transactions. Fees fluctuate based on network demand — during peak usage, gas fees can spike significantly. Layer-2 solutions like Arbitrum and Optimism process transactions off the main chain to reduce costs while inheriting Ethereum's security guarantees.
Frequently asked questions
Is Ether the same as Ethereum?
No. Ethereum is the blockchain platform, while Ether (ETH) is the native cryptocurrency used on that platform. People commonly say 'Ethereum' when referring to the token, but technically Ether is the currency and Ethereum is the network.
Can Ethereum be used for more than cryptocurrency?
Yes. Ethereum powers decentralized finance (DeFi), NFTs, supply chain tracking, identity verification, voting systems, and more. Any application that benefits from transparent, tamper-proof logic can potentially run on Ethereum's smart contract platform.