Ethereum

Ethereum
source
Name	Ethereum
Screenshot	Ethereum wallet screenshot
Caption	A view of an Ethereum wallet interface
Developer	Ethereum Foundation, Gavin Wood, Vitalik Buterin
Released	30 July 2015
Programming language	Go, Rust, C++, Python
Operating system	Cross-platform
Genre	Distributed computing, Blockchain
License	Open source

Ethereum is a decentralized, open-source blockchain system that features smart contract functionality. It is the foundational platform for a vast ecosystem of decentralized applications and serves as the primary network for the non-fungible token market. The platform's native cryptocurrency, Ether, is the second-largest by market capitalization and is used to compensate participants for computations performed.

History

The concept was initially described in a 2013 white paper by programmer Vitalik Buterin. Development was crowdfunded in 2014 by the Ethereum Foundation, a Swiss non-profit, with key contributions from co-founders like Gavin Wood and Joseph Lubin. The first live release, known as Frontier, launched in July 2015. A major milestone was the contentious hard fork in 2016 following the DAO hack, which led to the split between Ethereum and Ethereum Classic. The network's long-planned technical transition, dubbed "The Merge," occurred in September 2022, shifting its consensus mechanism from proof-of-work to proof-of-stake.

Design

The core innovation is the Ethereum Virtual Machine, a Turing-complete software environment that executes smart contracts. These contracts are written in languages like Solidity and Vyper. The network operates on a global network of nodes run by participants like ConsenSys. Following The Merge, validation is performed by validators who stake Ether, overseen by the Beacon Chain. Key technical upgrades, such as the Shanghai upgrade, have enabled features like withdrawal of staked assets.

Applications

The platform hosts thousands of decentralized applications across finance, gaming, and identity. It is the birthplace of decentralized finance, enabling protocols like Uniswap, Aave, and MakerDAO. The ERC-20 and ERC-721 token standards facilitated the explosion of initial coin offerings and the non-fungible token market, with projects like CryptoKitties and Bored Ape Yacht Club achieving prominence. Major corporations, including JPMorgan Chase and Microsoft, have explored its enterprise applications through consortia like the Enterprise Ethereum Alliance.

Governance

Development is steered by a loose coalition of core developers, researchers, and community members, with the Ethereum Foundation playing a coordinating role. Changes to the protocol are discussed and ratified through Ethereum Improvement Proposals, a public process inspired by Python Enhancement Proposals. Major decisions, such as the hard fork after the DAO incident, have been subject to heated community debate and miner or validator signaling. The shift to proof-of-stake has increased the governance influence of large staking pools like Lido.

Economics

Ether functions as both a cryptocurrency and the "gas" that powers transactions and smart contract execution. Its monetary policy changed significantly after The Merge, introducing a potential deflationary mechanism via fee burning outlined in EIP-1559. The asset is traded on major exchanges like Coinbase and Binance and is held as a reserve asset by entities like the Grayscale Bitcoin Trust's sister fund. The total market capitalization of tokens built on the network often exceeds that of many national economies.

Criticisms and limitations

The network has faced persistent scrutiny over its scalability, leading to high gas fees during periods of congestion, a problem addressed by layer 2 solutions like Optimism and Arbitrum. Its initial proof-of-work consensus was criticized for high energy consumption, a concern partially alleviated by The Merge. Regulatory uncertainty, particularly from bodies like the U.S. Securities and Exchange Commission, surrounds many projects built on it. The complexity of smart contracts has also led to costly exploits, such as the hack of the Poly Network.

Category:Blockchains Category:Smart contract platforms Category:Free software projects