Compliance Transport & Institutional Interop Layer

The Compliance Transport & Institutional Interop Layer grant opportunity is designed to address the growing need for standardized, interoperable compliance verification within the Ethereum ecosystem. This initiative, supported by a private entity focused on advancing blockchain infrastructure, seeks proposals that will create a universal standard for attaching attestations or compliance credentials to Ethereum transactions. The overarching goal is to enable wallets and decentralized applications (dApps) to securely transport and verify compliance proofs without modifying core smart contract logic or relying on bespoke integrations. This opportunity is grounded in the recognition that current privacy and compliance protocols operate in silos, each using distinct methodologies for embedding proofs, which undermines cross-platform interoperability and liquidity. The proposed solution must avoid centralized verification systems, proprietary schemas, and incompatibility with established standards like ERC-4337. Instead, applicants must demonstrate a protocol-agnostic approach that supports seamless integration across the Ethereum stack without requiring protocol changes. Applicants must fulfill several hard requirements including a draft Ethereum Improvement Proposal (EIP) with a comprehensive specification, a reference implementation, and an integration demo with at least one design partner such as an exchange, bridge, or wallet. Additional technical deliverables include a Solidity parser library, a wallet SDK, and example verifier contracts to facilitate adoption. The grant also encourages support for multiple attestation formats, backward compatibility with existing token standards, and a well-articulated governance model. The submission process requires potential applicants to review the detailed proposal requirements available through a linked HackMD document. Although no formal pre-application step is indicated, applicants are encouraged to engage with the grantor team for guidance. Application materials must be submitted between November 2, 2025, and January 2, 2026. The estimated project duration for selected proposals is between three to six months. While the funder has not specified a contact email or phone number, the grant is presented as part of a larger initiative to enhance Ethereum’s privacy stack. The foundation of this effort is the development of a shared transport layer that can later support additional privacy modules such as registries, disclosure protocols, and analytics layers. This grant opportunity opens on November 2, 2025, and closes on January 2, 2026. With clear technical expectations and an emphasis on interoperability and neutrality, it presents a unique opportunity for developers, researchers, and blockchain infrastructure organizations to contribute to Ethereum’s modular privacy ecosystem.

Ensure protocol-agnostic design and ERC-4337 compatibility; demonstrate with live partner demo.