Application

Ethereum Attestation Service (EAS) is an infrastructure public good for making attestations onchain or offchain about anything. Open-source, permissionless, token-free. Built by the community for the community. Live on mainnet, several L2s, & testnets.

Attestations are digital signatures on structured data used to build more trust online & onchain.

How do you decide who and what to trust? Our online and onchain worlds are filled with both genuine and deceptive information. We need a common way we can trust the authenticity of information and the safety of our interactions. Anytime you need to prove or verify something, attestations will play a critical role. Learn more about why we exist.

How It Works

EAS runs on two smart contracts — one for registering a schema and the other for making attestations with schemas. We've also created several dev tools to help builders build faster:

• An attestation explorer to discover and create schemas + attestations
• EAS SDK to easily start building
• GraphQL Endpoints for each chain
• Endless Docs for technical & non-technical builders

Who Uses It

We've already seen a few amazing use cases from the community such as:

• Gitcoin Passport stamps & scores can be attested to onchain
• Optimism RetroPGF applications & approvals are attestations (EAS is natively integrated into the OP Stack)
• Devfolio quadratic voting for hackathons
• Guild using attestations to gate communities & chat groups
• and many more...

Check out some of the Gitcoin Passport Score attestations coming in.

What We're Excited About

• The Vision
• The diversity in projects people are building with EAS (identity and beyond)
• The impact attestations will make on public goods funding strategies and decentralized governance
• Sybil resistance use cases & attesting to the authenticity of content
• more ideas to build

Where We're Focused

• We're actively building out improvements to the attestation explorer experience
• Continued builder education, awareness, and adoption
• Building unique integrations such as (zkps generated from attestations)

Get In Touch With Us & Check Out Some Community Content

Community Content:

• Ethereum Attestation Service - Unlocking Decentralized Identity - Bankless Podcast
• Ethereum Attestation Service (EAS) - Explainer Video - Vaibhav Saini
• ELI5 Ethereum Attestation Service (EAS) - Why You Should Care - Ryan Yi

EAS Channels:

• EAS Twitter (@eas_eth)
• Mirror Articles
• Builder Telegram
• EAS GitHub

TIME OF WORK