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Attestation Registry & Trust Federation
Design an open, federated registry built on Ethereum’s attestation standards (e.g. EAS) to manage issuer trust, attestation types, and revocations across chains. The system should enable privacy protocols and wallets to verify attestations through a shared, neutral trust layer. Projects that are not a good fit include centralized or single-governance registries, registries requiring protocol-specific integrations (should aim to be protocol-agnostic), systems that store PII/NPI (i.e. user data) onchain, closed revocation mechanisms without public APIs, and exploratory whitepapers without governance or API design.
Tags
- Privacy
- Security
Ecosystem Need
Attestations for KYC, proof of identity, and trusted hardware verification are growing rapidly, yet each protocol builds its own registry or revocation mechanism. This duplication fragments trust models and increases integration cost. A shared but federated registry can reduce redundancy, improve interoperability, and support cross-chain and cross-protocol trust without creating a single chokepoint. This work strengthens Ethereum’s modular privacy stack by establishing a common trust layer for attestation discovery and verification.
Hard Requirements
- EAS (Ethereum Attestation Service) compatibility - Smart contract registry with off-chain metadata indexing - Issuer onboarding API and governance framework - Typed attestation schema and trust tier definitions - Revocation mechanism with minimal on-chain footprint - Protocol adapters for 2-3 major privacy protocols - Demonstrated cross-chain attestation propagation - Two or more issuers onboarded in demo
Soft Requirements
- Published roadmap for open or DAO-based governance - Explain how surveillance/control risks are mitigated
Resources
Timeline
Opens: Nov 3, 2025
Closes: Jan 3, 2026
Estimated Project Duration: 3-6 months
