In recent weeks the blockchain community has witnessed a notable shift in strategy among two of the most prominent Layer‑2 ecosystems: Ethereum’s main network and Base, the Layer‑2 solution launched and supported by Coinbase. After months of intensive negotiations and technical workshops, both projects have decided to abandon the pursuit of a single, universal wallet standard that would have allowed developers and users to seamlessly move assets and execute transactions across the two networks using the same underlying protocol. Instead, each chain is moving forward with its own distinct improvement proposal—Ethereum is advancing with EIP‑8141, while Base has committed to implementing EIP‑8130.

This divergence has significant implications for wallet providers, decentralized applications (dApps), and end‑users who operate in the increasingly interconnected multi‑chain environment. ### Background: The Quest for a Common Standard The original ambition behind a shared wallet standard was to simplify the user experience in a landscape that is rapidly fragmenting into multiple rollups and sidechains. By agreeing on a single set of transaction formats, signing methods, and address derivation rules, developers hoped to reduce the engineering overhead required to support each network individually. The proposal, initially floated in early 2023, promised that a unified standard could eliminate the need for users to manage separate wallets for each chain, thereby lowering friction and encouraging broader adoption of Layer‑2 solutions.

### Why the Talks Stalled Despite the clear benefits, the negotiations encountered several technical and governance hurdles. First, the two proposals—EIP‑8141 for Ethereum and EIP‑8130 for Base—addressed slightly different use cases. EIP‑8141 focuses on enhancing transaction batching, gas‑price flexibility, and backward compatibility with existing Ethereum contracts.

In contrast, EIP‑8130 was designed with Base’s specific architecture in mind, emphasizing faster finality, tighter integration with Coinbase’s custodial services, and a distinct fee‑distribution model. Second, the governance structures of the two projects diverged. Ethereum’s improvement process is community‑driven, with extensive public review periods, multiple stakeholder inputs, and a final approval by the core developers. Base, while open‑source, operates under a more centralized decision‑making model due to its close ties with Coinbase’s product roadmap.

Aligning these differing processes proved difficult, as each side required assurances that the final standard would not compromise security or performance on their respective networks. Finally, market dynamics played a role. As both Ethereum and Base continue to attract significant developer interest, there is growing pressure to ship features quickly. Delaying implementation to accommodate a joint standard could result in lost market share to competing rollups that are already offering streamlined wallet experiences.

### The Chosen Paths: EIP‑8141 and EIP‑8130 #### Ethereum’s EIP‑8141 EIP‑8141, officially titled “Unified Transaction Envelope for Ethereum,” introduces a flexible transaction envelope that can encapsulate multiple operation types, including contract calls, token transfers, and state‑channel interactions. Key features include: - **Batching Capability:** Developers can bundle several actions into a single transaction, reducing overall gas costs.

- **Dynamic Fee Structure:** The proposal decouples gas price from the base fee, allowing users to specify priority fees that better reflect network congestion. - **Backward Compatibility:** Existing contracts and wallets can continue to operate without modification, as the new envelope is optional and can be detected via a version flag. Ethereum’s community has already begun testing the proposal on the Goerli testnet, with several major wallet providers, such as MetaMask and Ledger, expressing support for early integration. #### Base’s EIP‑8130 Base’s EIP‑8130, named “Base Transaction Specification (BTS),” tailors the transaction format to the specific performance goals of the Base network.

Its distinguishing characteristics are: - **Optimized Signature Scheme:** By leveraging a variant of Schnorr signatures, BTS reduces the size of transaction payloads, which in turn speeds up block propagation. - **Integrated Fee Rebates:** The proposal includes a mechanism for automatically rebating a portion of transaction fees to users who provide liquidity to Base’s native staking pools. - **Coinbase Custody Compatibility:** BTS is designed to work seamlessly with Coinbase’s custodial infrastructure, enabling institutional users to manage assets on Base without needing separate signing hardware.

Base has already rolled out a developer preview, and early adopters such as the decentralized exchange SushiSwap have begun experimenting with the new format. ### Impact on Wallets and dApps The decision to pursue separate standards means that wallet developers will need to support both EIP‑8141 and EIP‑8130 if they wish to remain compatible with the two leading Layer‑2 ecosystems. This adds a layer of complexity, but also opens opportunities for innovation.

For instance, multi‑chain wallets can now offer users the choice of which transaction format to use based on cost, speed, or security preferences. Some developers are already exploring abstraction layers that automatically detect the target network and apply the appropriate transaction envelope behind the scenes. For dApp creators, the split necessitates careful consideration of which network to target for specific functionalities. Applications that rely heavily on fast finality and low‑cost transactions may favor Base and its BTS format, while those that need deep integration with the broader Ethereum ecosystem—such as DeFi protocols that interact with existing contracts—will likely continue to adopt EIP‑8141.

### Looking Ahead While the lack of a unified wallet standard may initially appear as a setback for the vision of a frictionless multi‑chain experience, the reality is more nuanced. Both Ethereum and Base are advancing at a rapid pace, and the introduction of robust, network‑specific transaction formats could drive competition that ultimately benefits users. Wallet providers that invest in flexible architecture will be well‑positioned to capture market share, offering seamless cross‑chain experiences despite the underlying technical differences. In the coming months, we can expect to see: 1.

**Broader Adoption of EIP‑8141** across Ethereum‑based wallets, with increased tooling to simplify its integration. 2.

**Maturation of Base’s BTS** as more dApps migrate to the network, leveraging its fee‑rebate and signature optimizations. 3. **Emergence of Middleware Solutions** that abstract away the complexity of handling two standards, providing a unified API for developers. 4.

**Community Dialogue** about potential future convergence, perhaps through a higher‑level meta‑standard that can encapsulate both EIP‑8141 and EIP‑8130 without sacrificing their unique advantages. In summary, the decision by Ethereum and Base to move forward with their respective transaction specifications reflects the practical realities of scaling a decentralized ecosystem. While wallets and applications will need to accommodate two distinct standards, the competitive innovation spurred by this divergence promises to enhance performance, security, and user experience across the blockchain landscape.