Web3s New Vision Brought by ERC7683 From Multichain to Unified From Decentralized to Collaborative

Blockchain World Reports:
In the multi-chain landscape of the blockchain world, achieving more secure and convenient cross-chain interoperability has always been a challenging problem. With the increasing demand for cross-chain transactions by blockchain users, the challenges faced by cross-chain interoperability are becoming more prominent. Common challenges include:
■ Security
Security is the most common challenge in cross-chain transactions, and cross-chain bridge protocols that can attract large-scale asset retention have become the primary targets of hacker attacks in recent years.
Blockchain relies on validators to verify and execute transactions, and cross-chain bridge protocols also need to rely on trusted third-party validators to verify and process cross-chain transactions. During this process, if the incentives of the cross-chain bridge are insufficient, the number of validators is small, or the trust model is too centralized, hackers may attack the validators to destroy the cross-chain bridge and steal assets. In addition, vulnerabilities in the cross-chain protocol itself often become the entry point for hackers to launch attacks.
On the afternoon of August 6, 2024, Ronin Bridge was suspected to have been hacked, with approximately 4,000 ETH and 2 million USDC stolen, with a value of approximately 12 million US dollars. In March 2022, Ronin Bridge had already experienced a security incident known as the “largest loss in DeFi history,” where hackers attacked 5 out of 9 validators, stealing 173,600 Ethereum and USDC worth 25 million US dollars, with a total value exceeding 600 million US dollars.
■ High Gas Fees
Cross-chain transactions tend to incur higher gas fees. This is because users need to calculate the actual transaction cost based on the gas fees paid for operations on both the sending and receiving chains in the cross-chain process.
■ Complexity
Each blockchain operates independently, and each blockchain network has its own consensus mechanism and protocols. This scattered and isolated state between chains leads to relatively complex and cumbersome operations when users transfer assets and data across chains. In cross-chain transactions, users with frequent trading needs are more likely to encounter asset price slippage, increasing the difficulty of transactions.
To address the above issues, Uniswap Labs and interoperability protocol Across jointly proposed a new standard solution, ERC-7683, on May 20, 2024, aiming to make cross-chain transactions simpler, faster, and more secure through a shared execution network.
ERC-7683
The ERC-7683 standard is based on the CrossChainOrder structure and will provide an ISettlementContract smart contract interface to implement a standard API for cross-chain transaction execution systems.
The core technical proposal of the ERC-7683 standard is that all “cross-chain intents” follow the same order structure, which greatly improves the flexibility and user-friendliness of cross-chain operations.
As Uniswap Labs demonstrated on its social platform X:
The ERC-7683 standard provides a clear path for the unification of Ethereum.


△ Figure 1: Diagram of the cross-chain order structure under the ERC-7683 standard
Source: Uniswap Labs
Development of Applications
On August 21, 2024, Layer 2 solution Optimism announced the adoption of the ERC-7683 cross-chain standard, aiming to achieve more efficient transfer operations for ETH and USDC on Superchain, and further promote application layer interoperability in the broader Ethereum ecosystem. Currently, Optimism has integrated the cross-chain solution of the interoperability protocol Across.
In May 2024, Uniswap Labs announced the adoption of the ERC-7683 standard when collaborating with UniswapX on cross-chain operations.
It is worth noting that the ERC-7683 standard only provides a standard API for the implementation of cross-chain transaction execution systems, ensuring consistency in user experience. However, even with the implementation of ERC-7683, it is difficult to overcome a common challenge in cross-chain transactions:
Can sufficient cross-chain liquidity be obtained?
For the implementation of the ERC-7683 standard, if there is insufficient cross-chain liquidity, it means that the standard will have difficulty obtaining enough active “Fillers” (refer to Figure 1 in the article) to support users’ “cross-chain intents” through competitive mechanisms for better costs or experiences.
This means that the implementation of the ERC-7683 standard needs to have a wide-ranging effect – more use cases adopting the standard, more users using the standard, in order to have more Fillers and ultimately improve the overall efficiency of cross-chain transactions.
▶ Learn more about ERC-7683
Please visit:
https://www.erc7683.org
▶ View the Ethereum Magicians forum post by Uniswap Labs and Across requesting Ethereum comments
Please visit:
https://ethereum-magicians.org/t/erc-7683-cross-chain-intents-standard/19619
Support from the Ethereum Founder
Media reports have pointed out that Ethereum co-founder Vitalik Buterin has expressed special support for the development of the new cross-chain transaction standard ERC-7683 through social platforms. He stated that operations based on the ERC-7683 standard can include batch transactions, Merkle proofs, and other on-chain activities, and gave an example of how the ERC-7683 standard will work. He said:
“With the ERC-7683 standard, users can paste an ERC-7683 address into their wallet and with just one click, easily transfer assets from one chain to another.”
The multi-chain landscape is an inevitable development in the Web3 era, and for the next step in the development of the Web3 world, whether cross-chain transactions can be optimized, simplified, and further release liquidity will be a crucial challenge. The ERC-7683 standard addresses the pain points of cross-chain transactions and significantly improves the interoperability between blockchains. Its application will have a profound impact on the blockchain world. Currently, users can expect that the improved user experience brought by implementing the ERC-7683 standard will directly benefit more DeFi projects – injecting more liquidity support and accelerating their development.