based on the materials from the site - By Mint Blockchain

As Ethereum transitions into a new phase of modularity and multi-chain coexistence, Layer2s are no longer just scaling tools — they are now an essential infrastructure in a multi-chain world. One clear trend is accelerating: interoperability is becoming the central consensus for changing user experience and protocol interactions in the Layer2 era. It's not just about technical integration — it's about a fundamental shift in the user experience paradigm — from multi-chain coexistence to seamless unification.
On May 28, the 9th meeting of the L2 Interop working group brought important new developments. The session focused on advancing inter-chain protocol standards, core tools for developers, and several new proposals related to user experience and liquidity. Centered on 'engineering compatibility standards', this phase marked the transition from concept to implementation — painting a clearer picture of what Layer2 interoperability can become.

Designing the Future of Interoperability
The Ethereum Layer2 ecosystem has transformed into a multi-chain landscape. However, the complexity of interoperability between chains still limits user experience and liquidity flow. Fragmented network environments require users to manually switch between chains, and gas costs and delays further complicate adoption.

Outdated approaches to chain interaction are now being replaced by a standardized level of interaction that focuses on the real needs of users. Interaction is no longer just about connecting chains, but also about ensuring seamless end-to-end interaction. This principle was reflected in several key discussions at the event:
ERC-7786
Proposed by OpenZeppelin, ERC-7786 introduces a scalable and composable messaging standard for interoperability between chains. It works in tandem with ERC-7930 to define chain-specific binary address formats, addressing formatting issues between chains.

The standard is now stable, and the next steps include expanding to cover gas payment and message verification — with the aim of abstracting chain-specific protocols and enabling protocol-agnostic messaging.

Interop Wallet v0
Co-developed by the Ethereum Foundation and Wonderland, 'Interop Wallet v0' is an experimental UX prototype of a cross-chain wallet. Built on Ambire, it is currently operating in test networks and focuses on validating standards such as ERC-7828/7930 in real UX scenarios.

EIP-7702
Account abstraction is no less important in the cross-chain future. EIP-7702 introduces temporary delegation of smart contracts for EOA, allowing users to access smart wallet capabilities — such as batch transactions, fee sponsorship, and permission control — without changing their address or migrating funds. It lays an important technical foundation for smoother interactions for users with cross-chain.

Together, they provide context-dependent addresses that reduce the risk of user error and simplify cross-chain interaction. The system will adopt ENS-style subdomain management within the .l2.eth.

Storage Fillers
A new proposal from Socket, Storage Fillers separates capital providers and performers. Inspired by HLP-style storage, this model allows storage owners to delegate strategies to performers, enabling distributed matching of liquidity and operational capabilities. Such a construct can solve the problem of centralization in current resolver ecosystems and bring scalability and flexibility to the intent economy.

Support and Research for Mint
As a core member of the OP Superchain, Mint actively supports the development and implementation of interoperability standards. We closely monitor and study how these frameworks can be integrated into the core Mint ecosystem.
Our goal is to provide users with a more efficient, secure, and unified cross-chain experience, helping to shape the next generation of seamless Web3 and NFT infrastructure.

For next-generation decentralized infrastructures like Mint Blockchain, embracing interoperability is no longer optional — it is a fundamental responsibility in the collaborative evolution with the ecosystem.

In conclusion
As these standards take root, the multi-chain landscape is transforming into what we call 'loosely coupled, tightly integrated.' Differences between chains will fade into the background for users, while developers will maintain the flexibility of a modular design.

We are entering an era where connectivity is being redefined. Chains will no longer be isolated — the future of Web3 is not just multi-chain, but also cross-chain collaboration.
And Mint is here for that — actively building bridges to this new era of interaction.

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