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What Is Ethereum? Meaning & Example

A plain-English definition of Ethereum: what it means, how it works, and a simple example.

Quick answer

Ethereum is a decentralised blockchain platform that enables smart contracts and decentralised applications, with Ether (ETH) as its native cryptocurrency.

Ethereum is a programmable blockchain launched in 2015 by Vitalik Buterin and a team of co-founders. While Bitcoin was designed primarily as digital money, Ethereum was built to be a general-purpose platform where developers can deploy smart contracts, self-executing programs that run exactly as written without any intermediary.

How Ethereum works

Ethereum's blockchain stores not just transaction records but also the code and state of thousands of smart contracts. When a user interacts with a contract, for example swapping tokens on a decentralised exchange, that interaction is broadcast to the network, validated by nodes, and recorded on-chain. Executing a contract costs gas fees, paid in Ether (ETH).

In September 2022, Ethereum moved from proof-of-work to proof-of-stake in an upgrade called The Merge. Validators now stake a minimum of 32 ETH as collateral rather than running power-intensive mining rigs, reducing energy consumption by over 99%.

What is built on Ethereum

  • [DeFi](/glossary/defi) protocols: lending, borrowing, trading without banks.
  • [NFTs](/glossary/nft): unique digital assets representing art, collectibles and more.
  • [Stablecoins](/glossary/stablecoin): USDT and USDC each run partly on the Ethereum network.
  • DAOs: decentralised autonomous organisations governed by token holders.
  • [Web3](/glossary/web3) applications: games, social networks and identity systems.

Ether vs Ethereum

Ethereum is the network. Ether (ETH) is the crypto token that fuels it. When someone says they bought Ethereum, they mean they bought ETH. The distinction matters because the network supports thousands of other tokens too.

Tax treatment in India

Ether is treated as a Virtual Digital Asset. Gains are taxed at a flat 30% under Section 115BBH with no deductions beyond cost of acquisition. A 1% TDS applies under Section 194S on transfers above the threshold.

Risks and considerations

  • Smart contract bugs: code errors have led to significant losses in the past.
  • Gas fee spikes: network congestion can make transactions expensive.
  • Regulatory uncertainty: India has no crypto-specific regulation yet.
  • Volatility: ETH's price can swing sharply, much like other cryptocurrencies.

Ethereum FAQs

The questions people most often ask about Ethereum, answered for Indian readers.

Is Ethereum legal in India?

Yes. Buying, selling and holding Ether is legal in India. It is classified as a Virtual Digital Asset under the Income Tax Act. There is no specific regulation banning Ethereum, and Indian exchanges offer ETH trading pairs against INR.

What is the difference between Ethereum and Bitcoin?

Bitcoin is primarily a digital currency and store of value with a fixed 21 million supply. Ethereum is a programmable platform that supports smart contracts, DeFi, NFTs and thousands of tokens. Ethereum uses proof of stake while Bitcoin uses proof of work for consensus.

What are gas fees on Ethereum?

Gas fees are the charges paid in ETH to compensate validators for processing transactions and running smart contracts on the Ethereum network. Fees vary with network congestion; during busy periods they can spike significantly. Layer-2 solutions help reduce these costs.

How is Ethereum taxed in India?

Gains from selling ETH are taxed at a flat 30% under Section 115BBH of the Income Tax Act. A 1% TDS under Section 194S is deducted at source on transfers above the threshold. No loss set-off against other income or other VDAs is allowed.

Can I stake Ethereum in India?

Yes. Several Indian and global platforms offer Ethereum staking services. You earn staking rewards for helping validate transactions, but those rewards are also taxable as income in India. Staked ETH may have lock-up periods depending on the platform.

Related terms

CryptocurrencyBlockchainSmart ContractGas FeesDeFi (Decentralised Finance)StakingNFT (Non-Fungible Token)

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A note on accuracy: this definition is for general education, not personalised financial or tax advice. Figures are illustrative and rules can change. Confirm anything that affects a real decision.