ETHEREUM 
2025-02-16
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Ethereum is a decentralized, open-source blockchain platform known for its cryptocurrency, Ether (ETH). It functions as a global, decentralized computing platform that enables developers to build and deploy a wide variety of applications, from financial tools and games to complex data base
Ethereum is a second-generation blockchain that builds upon the concepts introduced by Bitcoin, expanding the use cases for blockchain technology beyond just peer-to-peer payments. It's a peer-to-peer network that maintains a database containing the storage values of all Ethereum accounts and processes state-altering transactions.
Ethereum uses a blockchain, which is a distributed ledger. Information is stored in blocks, each containing encoded data from the block before it and the new information. The Ethereum blockchain is a digital ledger where Ether can be securely stored and exchanged and where decentralized applications (dApps) can be created and developed through smart contracts. It employs smart contracts, which are self-executing contracts with the terms of the agreement directly written into code.
Consensus Mechanism:used by Ethereum enabled it to transition from a proof-of-work (PoW) to a proof-of-stake (PoS) consensus mechanism on September 15, 2022, in an upgrade known as "the Merge". This transition reduced the blockchain's energy usage by 99%.
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