Ethereum Classic Mining Hashrate Surges as Community Charts Independent Path After DAO Fork

The Hardware/Software Landscape

The cryptocurrency mining landscape in August 2016 finds itself in an unprecedented situation: two Ethereum chains now compete for GPU mining hashpower. Ethereum Classic, the continuation of the original pre-fork Ethereum blockchain, maintains approximately 15% of the hashpower compared to the main Ethereum chain — a figure that has surprised many observers who expected the classic chain to wither after the contentious hard fork that followed the DAO hack.

At current prices, Ethereum Classic trades at $1.72 with a market capitalization of roughly $143 million, while Ethereum commands $11.18 per coin and a $930 million market cap. The price differential creates a complex calculus for miners deciding where to direct their hardware. With GPU mining rigs representing significant capital investments — typically $2,000 to $5,000 for a competitive setup — miners must constantly evaluate which chain offers better returns per kilowatt-hour consumed.

James Hilliard, a commercial mining pool operator managing over 100 GH/s worth of Ethereum mining farms and pools for clients, has been actively encouraging his clients to mine on Ethereum Classic. His advocacy represents a meaningful shift in how some professional mining operations are approaching the post-fork landscape, treating the classic chain not as a dying remnant but as a legitimate long-term proposition.

Hashrate and Difficulty

The hashpower distribution between ETH and ETC carries significant implications for network security and mining economics. When a blockchain splits, miners must choose which chain to support, and their decisions directly impact the difficulty adjustment on each network. With only 15% of the original hashrate, Ethereum Classic’s lower difficulty means individual miners can find blocks more frequently relative to their computing power, potentially offsetting the lower token price.

However, the security implications are real. A chain with significantly lower hashpower is more vulnerable to 51% attacks, where a single entity or coordinated group could gain majority control of mining power and potentially reverse transactions. For Ethereum Classic to sustain long-term credibility as a platform, it needs sufficient hashpower to resist such attacks — and that means convincing enough miners that the chain has a viable future.

The mining landscape is further complicated by the broader market dynamics. Bitcoin itself trades at $581.31 with a $9.2 billion market cap, and the overall cryptocurrency market remains relatively subdued following the Bitfinex hack earlier in August, which saw approximately $70 million stolen. The exchange has since hired Ledger Labs to investigate the theft and conduct an audit, suspended its BitGo wallet security tools, and moved to a hot-cold wallet setup. Bitfinex has also signed a letter of intent with BnkToTheFuture to allow eligible customers to exchange BFX tokens for equity in the exchange’s parent company.

Profitability Metrics

For miners weighing ETH versus ETC, the profitability equation involves several variables: token price, network difficulty, block rewards, electricity costs, and hardware efficiency. At ETC’s price of $1.72 and ETH’s price of $11.18, the main chain appears to offer roughly 6.5 times the revenue per block. But if ETC’s difficulty is proportionally lower — as expected with only 15% of the hashpower — the gap narrows considerably on a per-GPU basis.

The wildcard is future price expectations. Miners who believe Ethereum Classic’s “code is law” philosophy will attract long-term developer and user interest may be willing to accept lower immediate returns in exchange for accumulating ETC at current low prices. This speculative mining strategy has historical precedent — early Bitcoin miners who held through periods of low profitability were eventually rewarded enormously.

Mining pool operators like Hilliard are making explicit bets on this outcome. His public criticism of the Ethereum Foundation — which he describes as “a corrupt group that’s only in it to get rich” — suggests that for some miners, the decision involves ideological considerations alongside pure economics. This ideological mining is relatively new in the cryptocurrency space and could sustain Ethereum Classic’s hashpower even when short-term profitability favors the main chain.

The Ethereum Classic community has also declared formal independence from the Ethereum Foundation, publishing a “Declaration of Independence” that positions the chain as the true continuation of the original Ethereum vision. This move has attracted developers like Marcus R. Brown, who now maintains the Ethereum Classic fork of cpp-ethereum, and project lead Arvicco, who frames the declaration as transforming “a mutiny into a revolution.”

Environmental Impact

The chain split introduces a broader question about energy efficiency in cryptocurrency mining. When a blockchain forks, the total energy consumed by both chains combined exceeds what was previously needed for the single unified chain. This redundancy represents wasted computational resources and unnecessary electricity consumption — an ongoing concern for critics of proof-of-work mining.

For Ethereum specifically, the split means GPU mining hardware is now divided across two networks, with neither benefiting from the full hashrate that the unified chain previously enjoyed. From an environmental perspective, the fork has effectively doubled the mining infrastructure devoted to what are fundamentally competing implementations of the same original protocol.

Looking at the wider mining ecosystem, Bitcoin continues to dominate energy consumption, with its hashpower far exceeding all other proof-of-work chains combined. Altcoin miners operating on Ethereum, Ethereum Classic, and other GPU-mineable chains like Monero — which surged 26.91% this week to $2.54 — represent a comparatively smaller but growing energy footprint.

Strategic Outlook

The mining community’s response to the ETH/ETC split offers a preview of how proof-of-work networks may handle future governance disputes. When ideological disagreements lead to chain forks, miners become the ultimate arbiters of which chain survives through their allocation of hashpower. Their decisions shape not just network security but the entire value proposition of each competing chain.

For professional mining operations, the diversification strategy of mining both chains simultaneously presents an attractive hedge. By splitting hashpower between ETH and ETC, miners can capture upside on both chains while waiting for the market to determine a winner — or accept that both may coexist indefinitely.

Charles Hoskinson, one of the original Ethereum founders, has emerged as a prominent voice in the Ethereum Classic community, working to develop an independent roadmap that diverges from the Ethereum Foundation’s plans. This roadmap could include exploring alternative consensus mechanisms to proof of stake — ironically making Ethereum Classic potentially more conservative in its technical evolution than the main chain that forked to bail out DAO investors.

The weeks ahead will prove critical. If Ethereum Classic can maintain its hashpower and attract continued developer interest, it establishes a powerful precedent: that community conviction and mining support can sustain a blockchain even when its opposition includes the original development team and the majority of market participants. For miners, this represents both a risk and an opportunity that defines the frontier of cryptocurrency in 2016.

Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency mining involves significant risk and operational costs. Readers should conduct their own research before making any mining or investment decisions.