Ethereum Classic is the original chain of Ethereum, with its true creator being the original Ethereum founder, Vitalik Buterin. In July 2016, Ethereum experienced a contentious hard fork when participants disagreed on whether to revert the blockchain to address the effects of a significant hack. This incident affected The DAO, a decentralized autonomous organization that had raised approximately $150 million through an initial coin offering several months prior. Ethereum Classic emerged as the network that chose not to revert the chain. Developers emphasize that there is no "official" team associated with the project. Instead, they describe its "global development community as a permissionless 'do-ocracy,'" where participation is open to everyone.

Ethereum Classic possesses several distinctive attributes, which include: * Proof-of-Work: ETC will continue to operate as a proof-of-work blockchain, recognized globally as the most secure consensus mechanism. * Sound Money: As a proof-of-work blockchain, ETC is comparable to digital gold, with the production cost equating to the cost of block creation. Additionally, it adheres to a fixed monetary policy with a supply cap of 210,700,000. * Programmability: ETC supports programmability through smart contracts, offering greater versatility and utility compared to simpler cryptocurrency chains like Bitcoin or Litecoin. * Full Replication: ETC maintains superior security through full replication across all network nodes. While other smart contract blockchains are adopting “sharding,” “parachains,” or “sidechains,” which can reduce security, ETC remains fully replicated. * Composability: In ETC, composability ensures that all applications enabled by programmability are within the same system, providing equal security and facilitating their interaction in single, complex transactions. * Size: The larger the blockchain, especially if it is the largest in its category, the more secure the system becomes. ETC stands as the largest smart contracts blockchain featuring proof of work and a fixed monetary policy. Together, these unique features make ETC decentralized applications the most secure in the world, as per Eulerpool data.

Ethereum Classic (ETC) and Ethereum (ETH) are distinct blockchain networks that originate from a shared history but have since diverged in terms of philosophy and development paths. Ethereum Classic is the original Ethereum version, launched in 2015. It serves as a decentralized, open-source blockchain platform enabling developers to create and deploy decentralized applications (dApps) and smart contracts. The security of the Ethereum Classic network is maintained using a Proof-of-Work (PoW) consensus algorithm. Conversely, Ethereum is a fork of the initial Ethereum blockchain that was established in 2016. This occurred in response to a hack that resulted in the loss of millions of dollars worth of Ether. The Ethereum community conducted a hard fork to counteract the hack and restore the stolen funds to their rightful owners, leading to the formation of two distinct blockchains: Ethereum (ETH) and Ethereum Classic (ETC). A primary distinction between Ethereum Classic and Ethereum is their governance approach. Ethereum employs a more centralized governance structure, with a core development team responsible for steering the platform's future direction. In contrast, Ethereum Classic embraces a more decentralized governance model, where decisions are made by the community through a consensus process. Additionally, the development roadmaps for the two networks differ significantly. Ethereum transitioned from a Proof-of-Work (PoW) consensus algorithm to a Proof-of-Stake (PoS) algorithm following The Merge in September 2022. On the other hand, Ethereum Classic remains committed to its original PoW algorithm, upholding its foundational decentralized philosophy.

Ethereum Classic (ETC) originated with technical similarities to Ethereum (ETH), differing primarily in the handling of the DAO hack transactions. Since its inception, notable changes have been made in its tokenomics, with Ethereum Classic implementing a supply cap in December 2017. The maximum supply is established at 210,700,000 ETC, approximately ten times that of Bitcoin (BTC), whereas ETH does not have a capped supply. ETC employs a Proof-of-Work (PoW) mining algorithm, functioning similarly to Bitcoin, where miners receive new coins as a reward for validating the blockchain through competitive mining efforts. The ETC block reward undergoes a reduction over time, decreasing by 20% every two years or every 5 million blocks. The forthcoming reduction is scheduled for block 20,000,000, approximately in June 2024, when the reward will decrease from 2.56 ETC to 2.048 ETC per block.

Proof-of-Work (PoW) When Ethereum Classic (ETC) operated as a minority chain, it experienced several attacks. These included 51% attacks aimed at gaining control of the mining hashrate to execute unauthorized transactions and double-spend coins, with the most recent incident occurring in August 2020. Ethereum Classic employs the Proof-of-Work (PoW) consensus algorithm. By solving complex computational puzzles to generate and validate blocks of transactions, Ethereum Classic miners ensure the network's security. The ETC blockchain is fully replicated, providing redundancy across numerous nodes worldwide, which makes it practically immune to shutdowns or tampering by natural disasters or human interference. Now recognized as the largest proof of work smart contracts blockchain globally, its security levels have considerably improved. This enhancement has led developers to remove the safety measures that were implemented following the 51% attacks of 2020.

Within the Ethereum Classic blockchain, a subset of nodes operates as miners. These miners compile transactions into groups, apply a timestamp, append the cryptographic stamp or hash from the previous block, and include a variable known as a nonce. Upon completing these steps, they generate a new cryptographic hash specifically for the new block and immediately verify if it meets a predetermined target defined by the protocol. If the target is not met, miners adjust the nonce and attempt the process again. This process is repeated continuously until a miner achieves the target. This intensive computation can occur trillions of times per second, consuming significant energy and is known as "proof of work." This method demonstrates that only through repeated attempts, leveraging extensive computing power and electricity, can a miner statistically achieve the target within the standard block time, which is 13 seconds for Ethereum Classic. When a miner succeeds in reaching the target, the block is disseminated to the rest of the network for validation, and the miner is compensated with a reward, along with the transaction fees from the block.

Ethereum Classic (ETC) is a prominent cryptocurrency with a significant market capitalization and is readily tradable on numerous leading exchanges. It can be paired with stablecoins, various other cryptocurrencies, and fiat currencies, and there are also derivatives and institutional investment options available. Exchanges where you can purchase Ethereum Classic include Binance, OKEx, HTX, and Coinbase. New to cryptocurrencies? Explore our simple guide for purchasing Bitcoin and other cryptocurrencies.

Ethereum has gained popularity due to its network effects, as well as increased developer and user activity, even though both Ethereum Classic and Ethereum provide smart contracts and compete in the same market. The primary concerns for Ethereum Classic (ETC) include scalability, bloat, and backward compatibility. These challenges are common to all layer 1 smart contract blockchains. Both Ethereum and Ethereum Classic will achieve scalability through layer 2 systems. The issue of backward compatibility will be addressed with the implementation of "Account Versioning" and "EVM Versioning" in the EVM standard. Addressing bloating is ongoing, relying on improvements in client efficiencies, changes in data structures, and other developments.