Ethereum and Base Abandon Unified Wallet Standard After Prolonged Discussions

In recent weeks the blockchain community has witnessed a notable shift in the direction of two major platforms, Ethereum and the Coinbase‑backed Layer‑2 solution known as Base. After months of negotiations and technical deliberations, both projects have decided to part ways on the pursuit of a single, universal wallet standard. Ethereum is moving forward with the implementation of EIP‑8141, while Base has elected to support a different proposal, EIP‑8130.

This divergence means that developers, wallet providers, and end‑users who operate across both ecosystems will now need to accommodate two distinct transaction models, each with its own set of specifications, signing flows, and compatibility considerations. ### Background: The Quest for a Common Standard The idea of a shared wallet standard emerged from a practical need: as the Ethereum ecosystem expanded, a growing number of Layer‑2 solutions and sidechains began to appear, each offering varying performance characteristics, fee structures, and user experiences.

A unified standard promised to simplify the user journey, allowing a single wallet interface to seamlessly interact with multiple networks without requiring separate configurations or custom code for each chain. Early discussions centered around the possibility of extending the existing EIP‑1559 fee market model to accommodate the nuances of Layer‑2 scaling, while also preserving backward compatibility with the vast array of existing Ethereum wallets.

### The Proposals: EIP‑8141 vs. EIP‑8130 **EIP‑8141** – Ethereum’s chosen path focuses on enhancing the transaction payload format to include additional metadata that can be interpreted by Layer‑2 rollups.

The proposal introduces a new field called `layer2Info`, which carries identifiers for the specific rollup, its version, and optional parameters for fee rebates. By embedding this data directly into the transaction, Ethereum aims to keep the core transaction verification logic unchanged while giving rollups the context they need to process the transaction correctly. The standard also retains the familiar gas‑price and max‑fee fields, ensuring that existing wallet software can continue to operate with minimal adjustments.

**EIP‑8130** – Base, on the other hand, opted for a more radical redesign that separates the base transaction from the rollup‑specific instructions. Under this model, a transaction is split into two parts: a primary Ethereum‑level transaction that authorizes the movement of funds, and a secondary payload that is transmitted to the Base network via a dedicated bridge contract.

This approach allows Base to implement its own fee market, which can be more aggressive in terms of fee discounts and batch processing. The proposal also introduces a new signature scheme, `secp256k1‑Base`, designed to be more efficient for the high‑throughput environment that Base targets.

### Why the Split Occurred Several technical and strategic factors contributed to the eventual split. First, the timeline for finalizing EIP‑8141 proved longer than Base’s product roadmap demanded.

Base’s engineering team needed a solution that could be rolled out within the next quarter to meet user demand for faster, cheaper transactions. The more incremental changes of EIP‑8141 did not align with that urgency. Second, there were philosophical differences regarding how much responsibility should reside on the Ethereum base layer versus the Layer‑2.

Ethereum’s community generally prefers to keep the base protocol as stable and minimal as possible, delegating most scaling logic to the rollups themselves. Base, however, wanted tighter integration that would allow it to offer unique features—such as instant finality guarantees and programmable fee rebates—without relying on additional smart contracts on Ethereum. Lastly, stakeholder pressure played a role. Coinbase, as the primary backer of Base, has a vested interest in differentiating its product from competing rollups.

By supporting a distinct standard, Base can claim a proprietary edge that may attract developers looking for specialized tooling or performance characteristics. ### Implications for Wallets and dApps The immediate impact of this divergence is an increase in complexity for wallet developers. A wallet that previously only needed to support EIP‑1559 now must implement logic to detect whether a user is interacting with Ethereum proper or with Base, and then apply the appropriate transaction construction method.

This may involve: 1. **Network Detection** – Automatically recognizing the target chain based on the RPC endpoint or chain ID. 2.

**Dynamic Payload Construction** – Building either a single‑field transaction for EIP‑8141 or a dual‑part transaction for EIP‑8130. 3.

**Signature Handling** – Supporting both the traditional `secp256k1` signature used on Ethereum and the newer `secp256k1‑Base` scheme. 4. **Fee Estimation** – Providing accurate fee quotes that reflect the distinct fee markets of each network, including any potential rebates offered by Base.

For decentralized applications (dApps) that aim to be multi‑chain, the development effort also rises. Smart contracts that interact with users on both Ethereum and Base will need to include fallback mechanisms to handle the differing transaction formats. Moreover, analytics platforms must adjust their data pipelines to correctly attribute transactions to the right standard, ensuring that metrics such as gas usage and transaction throughput remain accurate.

### Potential Paths Forward While the current situation presents a hurdle, there are several avenues that could mitigate the friction: - **Adapter Libraries** – Open‑source libraries that abstract away the differences, offering a unified API to developers while handling the underlying standard-specific details internally. - **Cross‑Chain Bridges** – Enhanced bridge contracts that can translate an EIP‑8141 transaction into the format expected by Base, and vice versa, effectively acting as a compatibility layer. - **Future Convergence** – It is possible that, over time, the two standards could be reconciled through a hybrid proposal that borrows the best elements of both.

Community working groups may be formed to explore such a compromise. ### Conclusion The decision by Ethereum and Base to pursue separate wallet standards marks a pivotal moment in the evolution of the broader blockchain ecosystem.

While it introduces short‑term challenges for wallet providers, developers, and users, it also reflects the healthy diversity of approaches that can drive innovation. As both networks continue to mature, the industry will likely develop tools and best practices to bridge the gap, ensuring that the ultimate goal—seamless, user‑friendly interaction across multiple chains—remains within reach.