Ethereum Classic

ETC Launched 2016 source

What this page is: neutral, sourced facts about Ethereum Classic. Every line links where it was checked. 8 facts, 2 from primary sources. Educational, not financial advice.

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Launch

Ethereum Classic was created in a hard fork and maintains the original, unaltered ledger prior to the attempt to reverse a hacking attack on The DAO in July 2016. secondary source source

Origin story

Ethereum Classic is a continuation of the original Ethereum launched in 2015, which The Ethereum Foundation forked away from by launching a new protocol in 2016. primary source source

Stated purpose

Ethereum Classic describes itself as a continuation of the original Ethereum launched in 2015, where Code is Law: applications run exactly as programmed without downtime, censorship, or third party interference. primary source source

Consensus mechanism

It is now the largest smart contract platform secured by a proof-of-work consensus mechanism, following Ethereum's transition to proof-of-stake in 2022. secondary source source

Supply model

On 11 December 2017, the total supply on Ethereum Classic was hard capped at ETC 210,700,000; the "5M20" schedule reduces the block reward by 20% every 5,000,000 blocks. secondary source source

Main uses today

It is used to pay for Gas, a unit of computation used in transactions and other state transitions. secondary source source

Key milestones

Ethereum Classic upgraded its network on block 5,900,000 to permanently defuse the Difficulty Bomb. secondary source source

Notable events and controversies

Third 51% attack in Aug 2020; the first was on Aug 1. secondary source source

Sources & studies

Last checked: 2026-11-04 · Prices, market caps and circulating supply are left out on purpose because they change by the minute. Educational, not financial advice.

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