Ethereum and Base Abandon Shared Wallet Standard After Prolonged Discussions

In recent weeks, the blockchain community has witnessed a notable shift in strategy among two of the most prominent platforms in the ecosystem: Ethereum and Base. After months of intensive negotiations and technical deliberations, both networks have decided to abandon the pursuit of a unified wallet standard that would have allowed seamless interaction across their respective chains. Instead, each platform is now moving forward with its own distinct improvement proposal—Ethereum with EIP‑8141 and Base, the layer‑2 solution backed by Coinbase, with EIP‑8130.

This divergence carries significant implications for developers, wallet providers, and end‑users who have been hoping for a single, streamlined experience when moving assets or executing transactions across the two environments. ### Background: The Quest for a Common Standard The idea of a common wallet standard emerged from the growing demand for interoperability in the rapidly expanding decentralized finance (DeFi) space. As users began to hold assets on multiple networks, the friction associated with switching between different wallet interfaces, signing methods, and transaction formats became a pain point.

A unified standard promised to simplify the user experience, reduce the learning curve for new participants, and lower the development overhead for applications that needed to support both Ethereum’s mainnet and Base’s layer‑2 rollup. Early discussions centered on harmonising transaction encoding, fee estimation, and signature schemes. Both Ethereum and Base contributed technical experts to a working group that drafted a series of proposals aimed at aligning the two ecosystems. The ultimate goal was to produce a single specification that could be adopted by wallet developers, dApp interfaces, and infrastructure providers, thereby eliminating the need for separate code paths.

### Why the Divergence Occurred Despite the best‑case scenario presented by the working group, several technical and strategic factors led to the decision to part ways. 1. **Different Priorities in Scaling Strategies** Ethereum’s roadmap focuses heavily on the implementation of EIP‑4844 (proto‑Danksharding) and subsequent upgrades that aim to increase throughput while preserving the security guarantees of the base layer. EIP‑8141, the proposal Ethereum has now embraced, is designed to integrate tightly with these upcoming changes, offering a transaction format that optimises data availability and reduces gas costs for roll‑up interactions.

Base, on the other hand, operates as an optimistic roll‑up that leverages its own set of optimisations to achieve low latency and cheap transactions. EIP‑8130 reflects Base’s specific needs, such as custom fee markets and batch‑processing mechanisms that are not directly compatible with the design choices baked into EIP‑8141.

2. **Governance and Community Alignment** Ethereum’s improvement process is famously open‑ended, with proposals undergoing rigorous community review, test‑net deployment, and multiple rounds of feedback before finalisation.

The EIP‑8141 path benefitted from strong support among core developers who saw the proposal as a natural extension of existing standards. Base, while benefiting from Coinbase’s resources and a more centralized governance model, needed to move quickly to meet product launch timelines. The Base team concluded that waiting for a consensus‑driven, cross‑chain standard would delay critical features for their users. 3.

**Technical Incompatibilities** A deeper dive into the specifications revealed subtle but consequential incompatibilities. For instance, EIP‑8141 introduces a new transaction envelope that encodes calldata in a way that is incompatible with the batch‑submission format used by Base’s optimistic roll‑up.

Attempting to reconcile these differences would have required a substantial rewrite of both codebases, introducing risk and potential security vulnerabilities. 4. **Economic Considerations** Both networks are under pressure to keep transaction fees low to remain competitive with other layer‑2 solutions and alternative blockchains.

The distinct fee models embedded in EIP‑8141 and EIP‑8130 reflect each platform’s approach to balancing security, speed, and cost. A unified model could have forced compromises that neither side was willing to accept.

### What This Means for Wallets and dApps The immediate fallout of the split is that wallet developers will now need to implement support for two separate transaction standards. This translates to additional development effort, testing, and maintenance. However, the situation is not without its silver linings. - **Specialisation**: By focusing on their own standards, both Ethereum and Base can fine‑tune the user experience for their specific ecosystems.

Wallets can offer optimised interfaces that take advantage of the unique features of each chain, such as Base’s rapid finality or Ethereum’s robust security guarantees. - **Innovation**: Separate standards may spur parallel innovation. Developers can experiment with novel fee mechanisms, privacy enhancements, or cross‑chain bridges without being constrained by a one‑size‑fits‑all specification. - **Clear Migration Paths**: With distinct standards clearly documented, users and developers can more easily understand the migration steps required when moving assets from one network to the other, rather than navigating a vague, hybrid specification.

For decentralized applications, the impact is twofold. First, dApps that aim to be truly multi‑chain will need to incorporate logic that detects the underlying network and formats transactions accordingly.

Second, the split may encourage the creation of middleware services—such as transaction relayers or cross‑chain adapters—that abstract away the complexity for end‑users, effectively acting as a bridge between the two standards. ### Looking Ahead: Potential for Future Alignment While the current trajectory points toward parallel development, the blockchain community has a history of revisiting interoperability challenges as the ecosystem matures. Several pathways could eventually bring the two standards closer together: - **Cross‑Chain Bridges**: Continued investment in secure bridging solutions could mitigate the need for a single wallet standard by providing reliable, low‑cost pathways for asset transfer. - **Meta‑Standards**: A higher‑level meta‑standard could emerge, defining how different transaction formats should be interpreted by wallets, allowing them to support multiple underlying protocols without duplicating core logic.

- **Community‑Driven Extensions**: Open‑source contributions from developers who work across both ecosystems may result in extensions or adapters that harmonise the user experience while preserving the technical distinctions of each chain. ### Conclusion The decision by Ethereum and Base to pursue separate improvement proposals—EIP‑8141 for Ethereum and EIP‑8130 for Base—marks a pivotal moment in the evolution of cross‑chain wallet standards. Although the initial goal of a unified transaction format has been set aside, the move reflects deeper strategic, technical, and economic realities that each network must address to stay competitive.

Wallet providers, developers, and users will need to adapt to the new landscape, but the split also opens the door for specialised innovation and the potential emergence of higher‑level solutions that could eventually reconcile the differences. As the blockchain space continues to grow, the dialogue around interoperability remains vital, and future collaborations may yet bring about a more seamless experience across the diverse array of networks that power decentralized finance today.