What is Ethereum?
Ethereum (ETH) is the second-largest cryptocurrency by market cap and the most widely used blockchain platform for decentralized applications (dApps). While Bitcoin was created primarily as digital money, Ethereum was designed as a programmable blockchain that can run smart contracts and applications.
Created by Vitalik Buterin in 2015, Ethereum has become the foundation for DeFi (Decentralized Finance), NFTs, DAOs, and thousands of other blockchain applications.
How Ethereum Differs from Bitcoin
- Purpose: Bitcoin is primarily digital money; Ethereum is a platform for applications
- Smart contracts: Ethereum supports programmable contracts; Bitcoin has limited scripting
- Block time: Ethereum ~12 seconds; Bitcoin ~10 minutes
- Supply: Bitcoin has a hard cap of 21M; Ethereum has no fixed supply but has become deflationary post-merge
- Consensus: Both now use different mechanisms (Bitcoin: Proof of Work; Ethereum: Proof of Stake)
What are Smart Contracts?
Smart contracts are self-executing programs stored on the Ethereum blockchain. They automatically enforce agreements when predetermined conditions are met - no middleman required.
Think of them like vending machines: you put in the right amount of money (meet the conditions), and the machine automatically gives you what you paid for (executes the contract).
Real-world uses of smart contracts:
- DeFi lending: Automatically match lenders with borrowers and manage collateral
- Token swaps: Exchange tokens without a centralized exchange
- Insurance: Auto-pay claims when conditions are verified
- Supply chain: Track goods and auto-release payments on delivery
What is DeFi?
DeFi (Decentralized Finance) refers to financial services built on blockchain technology that operate without traditional intermediaries like banks. Most DeFi applications run on Ethereum.
Popular DeFi categories:
- Lending/Borrowing: Earn interest on crypto deposits or borrow against your holdings
- Decentralized Exchanges (DEXs): Trade tokens directly with other users
- Staking: Lock ETH to help secure the network and earn rewards
- Yield farming: Provide liquidity to protocols in exchange for rewards
How to Buy Ethereum
Buying ETH is straightforward through any major exchange:
- Check the current ETH price on our Ethereum price page
- Compare prices across exchanges using our comparison tool
- Sign up for your chosen exchange
- Deposit fiat currency and purchase ETH
Use our crypto calculator to see exactly how much ETH you can buy with your budget.
Disclaimer: This is educational content only. Cryptocurrency and DeFi investments carry significant risks including potential loss of principal. Always do your own research.