Ethereum Classic

ETC

Smart Contract PlatformProof of Work (Ethash/ETCHASH)Launched 2016

Max Supply

210.70M

Circulating

156.90M

Launched

2016

Minute-Level Data From

2023-01-29

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What it does

Ethereum Classic is the original Ethereum blockchain, maintained after a contentious hard fork in 2016. Following the DAO hack, Ethereum's community split: the majority created a new chain (Ethereum) to reverse the hack, while a minority maintained the original chain (Ethereum Classic) on principle of immutability — 'Code is Law.' ETC now serves as the largest smart contract platform secured by Proof of Work since Ethereum's transition to PoS.

How it works

Ethereum Classic runs an EVM-compatible smart contract platform using Proof of Work (modified ETCHASH algorithm, modified from Ethash to be ASIC-resistant). ETC maintained the original Ethereum chain history and blockchain that existed before the DAO fork. The ETC network added a fixed monetary policy (210.7M max supply with 20% reduction every 5 million blocks, similar to Bitcoin's halving) to differentiate from ETH's inflationary model. Smart contracts deployed on Ethereum can be ported to ETC with minimal changes due to EVM compatibility.

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Problem it solves

Ethereum Classic preserves the principle of blockchain immutability — that no transaction should ever be reversed regardless of the circumstances. By refusing to reverse the DAO hack, ETC advocates for the principle that a blockchain's value comes from its neutrality and unchangeability. This appeals to users and developers who require absolute certainty that past transactions cannot be altered by governance decisions.

Key Differentiator

The largest PoW smart contract platform after Ethereum's transition to PoS, maintained on the principle of absolute blockchain immutability — 'Code is Law' — with a Bitcoin-inspired fixed monetary policy.

Tokenomics

Supply Model

Deflationary (Fixed 210.7M max supply; block rewards reduce 20% every 5M blocks)

Halving

20% block reward reduction every 5 million blocks (~2.5-3 years); last era began ~2024

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Ecosystem

Chain: Ethereum Classic (own Layer 1 blockchain, EVM-compatible)

Depends on: GPU miner participation (lower hash rate than ETH before its PoS merge, making it historically vulnerable to 51% attacks), ETC development community, exchange listing support

Influences: Proof of Work smart contract market, ETCHASH mining economics

Similar Projects

EthereumETH

ETC is the original pre-fork Ethereum chain using PoW; ETH is the larger, more active chain that transitioned to PoS in 2022

BitcoinBTC

Both use PoW and have fixed supply caps; ETC adds EVM smart contract functionality that Bitcoin lacks

Sources

Official Site Whitepaper CoinMarketCap

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Supply figures and project details are approximate and may not reflect the latest changes. Always verify from official sources before making decisions. This information is for educational purposes only — not financial advice.