$BITCOIN Ethereum is a decentralized, open-source blockchain network created in 2015 by programmer Vitalik Buterin and a team of co-founders. While Bitcoin was primarily designed as a peer-to-peer digital currency, Ethereum $ETH was built as a programmable global computing platform.
The Foundation: Smart Contracts and dApps
At the heart of Ethereum is the concept of smart contracts—self-executing agreements coded directly onto the blockchain that automatically trigger actions once specified conditions are met without requiring intermediaries like banks or brokers.By providing a base layer for smart contracts, Ethereum enables developers to launch decentralized applications (dApps). These power an entire ecosystem of modern digital services, including:
Decentralized Finance (DeFi): Financial tools for borrowing, lending, and trading without traditional bank oversight.
Non-Fungible Tokens (NFTs): Verifiable digital ownership for artwork, collectibles, and real-world assets.
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Decentralized Autonomous Organizations (DAOs): Internet-native, member-owned organizations governed through smart contract voting rules.
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Ether (ETH) and Gas Fees
The native cryptocurrency powering the network is Ether (ETH). ETH serves two primary roles:Network Utility: Every transaction, execution of a smart contract, or interaction with a dApp requires a small fee paid in ETH, known as a gas fee. Gas fees reward network validators and prevent spam.
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Digital Currency & Asset: Outside the network, ETH trades as the world’s second-largest cryptocurrency by market capitalization after Bitcoin.
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Proof-of-Stake
Initially using a energy-intensive Proof-of-Work system like Bitcoin, Ethereum completed a major upgrade known as "The Merge" in September 2022. This transition to a Proof-of-Stake (PoS) consensus mechanism slashed the network's energy consumption by roughly 99.9%. Under PoS, network security is maintained by validators who stake their ETH rather than energy-heavy mining rigs.
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