Ethereum: Why do we need Proof of Work in bitcoin?

Ethereum vs Bitcoin: Understanding the role of proof

Work Proof (POW) is an algorithm of consensus used by many cryptocurrencies, including Ethereum and Bitcoin. Although the aim of both protocols is to ensure their relevant block chains through a process called mining, they have a pronounced difference in complexity, energy consumption and scalability.

Bitcoin proof of work

Bitcoin’s Pow was introduced in 2009 as a way to confirm transactions in the blockchain and to record them as part of Bitcoin Ledger (blockchain). The process involves solving complex mathematical puzzles that require significant computing power. This power is used to check that the user group has properly resolved the puzzle, which in turn helps to provide the network.

The energy consumption associated with POW has been the subject of disagreement between environmental defenders and those related to the sustainability of the cryptocurrency extraction energy consumption. According to estimates, Bitcoin’s Pow consumes about 2.5-3.5 TWh of electricity a year, which is equivalent to energy consumption of about 600,000 medium -sized homes.

Ethereum Proof of Rate (POS)

Ethereum’s main alternative to POW is its proof of the rate (POS) consensus algorithm. Unlike Bitcoin’s Pow, which requires miners to solve complex mathematical puzzles, Ethereum uses a different approach called “policy -based validation”. In this system, users with a significant amount of Ethereum markers (ETH), designed as collateral, are considered validators and participate in the validation process.

When the Ethereum Blockchain is created a new block, validators are selected by accident from their arranged ETH. Validator, who is most ETH at the time of creation of the block, is considered the best candidate to initiate a new block and confirm his transactions. This approach has several advantages over Pow:

* Lower Energy Consumption

: Since validators do not have to solve complex mathematical puzzles, they require significantly less computing power and energy.

* More Effective Validation Process : Validators can participate in the validation process with much lower costs, reducing the total energy consumption associated with the Ethereum network.

* Improved Security : POS provides more stable safety because one validator is harder to control the entire network.

Conclusion

In conclusion, although both Bitcoin and Ethereum use unanimity algorithms to provide their blockchain, they have different differences in complexity, energy consumption and scalability. Bitcoin evidence of work has been in existence for over a decade, but its environmental impact is increasingly questioned. On the other hand, Ethereum’s proof is a more effective, customizable and environmentally friendly algorithm that can help reduce the load on the world’s energy supply.

As the cryptocurrency landscape continues to evolve, it will be interesting to see how different block chains in the future adopt different unanimity algorithms.

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