Ethereum, the world's second-largest cryptocurrency by market capitalization, is gearing up for a major change. The much-awaited merge between the proof-of-work and the proof-of-stake chains is scheduled to happen in the coming days. However, before the merge, Ethereum underwent the Bellatrix upgrade, which was a necessary step to ensure a smooth transition. The merge will eliminate Ethereum's energy-intensive mining process and replace it with a more eco-friendly proof-of-stake consensus mechanism. But before the merge, the Ethereum difficulty bomb, an update that increases the complexity of proof-of-work calculations, will go off, making it more difficult for miners to mine blocks.
What is the Ethereum Difficulty Bomb?
The Ethereum difficulty bomb is a protocol update designed to incentivize the transition to proof of stake. It increases the complexity of proof-of-work calculations and the time required to process transactions, making it more difficult for miners to mine blocks. The difficulty bomb also prevents Ethereum miners from doing lazy forks. If they fork Ethereum, they must coordinate to remove the bomb. Otherwise, their fork will become unusable for miners. Therefore, miners can create a fork where proof of work is still the consensus mechanism, but they must do their own fork to remove the bomb.
What is the Ethereum Merge?
The Ethereum merge is a major upgrade to the Ethereum network that will replace the current proof-of-work consensus mechanism with proof-of-stake. The proof-of-stake mechanism will enable users to stake their Ethereum tokens and earn rewards for verifying transactions. The merge will also make Ethereum more energy-efficient and faster.
When will the Ethereum Merge Happen?
The Ethereum merge will not be implemented at a specific block but rather when the Terminal Total Difficulty (TTD) reaches a certain number. Vitalik Buterin, the co-founder of Ethereum, tweeted the specific number TTD needs to reach back in early August. Going to wenmerge.com, it is estimated that the difficulty bomb will go off on September 13th, and the mainnet merge, based on the current TTD, will happen the day after, on September 14th. However, because the network is live and TTD can fluctuate, the merge could happen earlier or later.
Where will Ethereum Miners Go?
When the Ethereum difficulty bomb goes off, miners will be faced with exponentially increasing difficulty to mine blocks, forcing them to find new homes for their hashing power or keep mining with a fork that successfully removed the difficulty bomb. Ethereum Classic is one of the obvious choices, but lesser-known proof-of-work coins such as Flux, formerly known as Zelcash, could swallow hashrate. Flux has a significant ecosystem already built, including its GPU mineable coin, mining pools, enterprise servers and nodes, the FLUX OS to run dapps, xdao community governance, zelcore multicoin wallet, fusion blockchain bridges, and DeFi with parallel assets.
Conclusion
Ethereum's merge is a major step towards a more energy-efficient and faster blockchain. Before the merge, the Ethereum difficulty bomb will go off, which will make it more difficult for miners to mine blocks. Ethereum miners will have to find new homes for their hashing power or keep mining with a fork that successfully removed the difficulty bomb. Lesser-known proof-of-work coins such as Flux could swallow hashrate as they offer a significant ecosystem and parallel assets. The future of Ethereum looks promising as it transitions to a more eco-friendly and faster proof-of-stake mechanism.