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Ethereum Attestation Service

$2,209.01 crowdfunded from 2876 people

$7,349.85 received from matching pools

75%
average score over 1 application evaluations
An open-source, permissionless service for creating verifiable onchain and offchain attestations, fostering trust online with tools and documentation for developers and users.

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:

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)
  • Coinbase attesting to verified accounts
  • Devfolio's 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. Gitcoin Passport Score Attestations

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
  • Machine to machine attestations
  • 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:

EAS Channels:

Ethereum Attestation Service History

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