Ethereum Classic has no single founder — it originated collectively. When the Ethereum network hard-forked in July 2016 at block 1,920,000 to reverse the DAO hack, a portion of the community chose to remain on the original unmodified chain, calling it Ethereum Classic. Vitalik Buterin and the Ethereum Foundation led the forked chain, while ETC supporters maintained the unaltered ledger. Its founding principle is immutability and resistance to centralized intervention.

Key milestones: July 2016 — DAO hack triggers hard fork, creating ETC on the original chain. 2017 — ETC gains mainstream exchange listings and price surge during crypto bull market. 2022 — Network implements significant upgrades improving efficiency and security. 2024 — ETC continues as one of the few surviving mature Proof-of-Work smart contract platforms, further differentiating itself after Ethereum's transition to Proof-of-Stake.

Ethereum Classic runs on a Proof-of-Work consensus mechanism using the ETCHash algorithm (a modified Ethash). It is EVM-compatible, meaning it can execute Ethereum-style smart contracts and support Solidity-based dApps. The blockchain uses a modified GHOST protocol to determine the longest chain. Its block time is approximately 15 seconds per block, and it maintains full compatibility with the broader Ethereum tooling ecosystem.

ETC has a fixed maximum supply of 210 million tokens. Initial block rewards started at 5 ETC per block and have since been reduced through predefined halvings, currently sitting at 3.2 ETC per block. As the supply approaches the 210 million cap, mining rewards decrease further. This predictable emission schedule gives ETC sound monetary properties similar to Bitcoin, combining smart contract utility with hard-money scarcity.

Ethereum Classic operates under a fully decentralized governance model with no centralized foundation or board making unilateral decisions. The ETC Cooperative (etccooperative.org) stewards protocol development and ecosystem growth, but governance ultimately rests with the broader community of miners, developers, and token holders. The principle of "code is law" means the protocol resists censorship and intervention, maintaining immutability as a core value.

Ethereum Classic serves as an unstoppable smart contract platform for decentralized applications (dApps), DeFi protocols, and digital asset issuance. Its Proof-of-Work security model appeals to users seeking censorship-resistant and immutable applications. Real-world use cases include supply chain verification, decentralized finance, tokenized assets, and as a store of value within the PoW ecosystem. It remains the only mature PoW blockchain with full EVM smart contract capability.