EY Launches Layer 2 Tools to Address High Ethereum Fees

5 July 2021, 05:53 GMT+0000
Updated by Kyle Baird
5 July 2021, 05:55 GMT+0000
In Brief
  • ZK-Optimistic Rollup protocol released to public domain.
  • Gas prices remain stable at around $2.65.
  • ETH price hits two-week high over the weekend.
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Auditing firm Ernst & Young (EY) has released a zero-knowledge proof Layer 2 protocol in order to help with addressing rising transaction fees on Ethereum.

The zero-knowledge proof (ZKP) protocol has been designed to enable private transfers of ERC-20 tokens in addition to improving overall efficiency.

The project, known as Nightfall 3, combines zero-knowledge proofs with a new model for handling transaction verification. The combined protocol, known as a ZK-Optimistic Rollup, aggregates ZKP transactions into groups, called rollups.

According to reports, EY teams have previously contributed ZKP protocols to the public domain.

Optimistically Rolling

Optimistic Rollups are one of a number of Layer 2 technologies that have been adopted this year. Instead of verifying each transaction, the network assumes that all of them are correct, making users intervene only if they see an incorrect transaction by submitting a “fraud proof.”

Using ZK-Optimistic Rollups, the protocol can achieve a cost of approximately 8,200 gas per transaction, while also maintaining privacy, the blog post added.

“This is almost one-eighth of the cost needed to make a conventional, public ERC20 token transfer.”


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It also reported that Nightfall 3 has been designed to reduce the learning curve required by developers to implement privacy. It provides them with a standardized application programming interface (API) that appears similar to other token transfer tools.

EY Global Blockchain Leader, Paul Brody, stated:

“Based on EY experience, ZK-Optimistic roll-ups are currently among the most effective in balancing security incentives and mathematical efficiency for running private transactions on the public Ethereum network.”

Ernst & Young is a multinational professional services network with headquarters in London, England.

Ethereum Gas fee update

Average transaction fees on Ethereum have come down to earth again following several months at unsustainable levels.

According to BitInfoCharts, the average fee is currently $2.65 and has been around these levels for the past month.

Gas costs can vary depending on the operation so a simple ERC-20 transfer will be cheap (at the moment) whereas a complex smart contract interaction can cost much more. Etherscan is reporting that the average price of a Uniswap token swap is currently around $4.50. In mid-May users of the DEX were facing three-figure transaction fees.

Ethereum (ETH) itself has performed well over the weekend, hitting a two-week high of just below $2,400 according to CoinGecko. At the time of writing it had retreated to $2,260 and was approaching support levels.


The information provided in independent research represents the author's view and does not constitute investment, trading, or financial advice. BeinCrypto doesn’t recommend buying, selling, trading, holding, or investing in any cryptocurrencies