Ethereum is a decentralized, open-source blockchain platform that was conceived by Vitalik Buterin in 2013 and launched in 2015. This platform is unique in its support for smart contracts and decentralized applications, often referred to as dApps. These innovative features enable the development of sophisticated on-chain programs and platforms, ranging from games to financial applications.
The native cryptocurrency of Ethereum is Ether (ETH), which plays a vital role in the platforms ecosystem. It is used to pay transaction fees on the network and is also awarded as a reward to those who verify transactions and secure the network, known as validators.
Ethereum operates on the principles of blockchain technology, which uses a distributed ledger to record all transactions that occur within the network. This ensures that all transactions are transparent, secure, and immutable. In essence, once data is added to the blockchain, it is virtually impossible to change or remove it.
In September 2022, Ethereum transitioned from a proof-of-work (PoW) consensus mechanism to proof-of-stake (PoS), which reduced its energy consumption by an impressive 99%. This transition not only made Ethereum more environmentally friendly, but it also increased its scalability and security.
One of the defining features of Ethereum is its use of smart contracts. These are self-executing contracts with predefined rules and conditions. When these conditions are met, the contract automatically performs the agreed-upon action, eliminating the need for a middleman. This functionality is what enables the creation of dApps and decentralized finance (DeFi) applications on the Ethereum network.
Furthermore, Ethereum has a wide range of applications. In addition to facilitating cryptocurrency transactions, the platform supports the creation and exchange of non-fungible tokens (NFTs), a new type of digital asset that has gained significant popularity in recent years. With its support for smart contracts, dApps, NFTs, and DeFi, Ethereum is revolutionizing the way we view and interact with the digital world.
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