<p>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.</p><blockquote><em>Attestations are digital signatures on structured data used to build more trust online & onchain.</em></blockquote><p>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 <a href="https://docs.attest.sh/docs/purpose/eas-purpose" rel="noopener noreferrer" target="_blank">why we exist</a>.</p><p><br></p><h2>How It Works</h2><p>EAS runs on <a href="https://github.com/ethereum-attestation-service" rel="noopener noreferrer" target="_blank">two smart contracts</a> — 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:</p><ul><li>An <a href="https://docs.attest.sh/docs/easscan/overview" rel="noopener noreferrer" target="_blank">attestation explorer</a> to discover and create schemas + attestations</li><li><a href="https://docs.attest.sh/docs/developer-tools/eas-sdk" rel="noopener noreferrer" target="_blank">EAS SDK</a> to easily start building</li><li><a href="https://docs.attest.sh/docs/developer-tools/api" rel="noopener noreferrer" target="_blank">GraphQL API</a> for each chain</li><li><a href="https://docs.attest.sh/docs/welcome" rel="noopener noreferrer" target="_blank">Endless Docs</a> for technical & non-technical builders</li></ul><p><br></p><h2>Who Uses It</h2><p>We've already seen a few amazing use cases from the community such as:</p><ul><li><a href="https://optimism.easscan.org/schema/view/0x6ab5d34260fca0cfcf0e76e96d439cace6aa7c3c019d7c4580ed52c6845e9c89" rel="noopener noreferrer" target="_blank">Gitcoin Passport</a> stamps & scores can be attested to onchain</li><li><a href="https://optimism.easscan.org/schema/view/0xebbf697d5d3ca4b53579917ffc3597fb8d1a85b8c6ca10ec10039709903b9277" rel="noopener noreferrer" target="_blank">Optimism RetroPGF</a> applications & approvals are attestations (EAS is natively integrated into the OP Stack)</li><li><a href="https://base.easscan.org/address/0x357458739F90461b99789350868CD7CF330Dd7EE" rel="noopener noreferrer" target="_blank">Coinbase</a> attesting to verified accounts</li><li><a href="https://arbitrum.easscan.org/schema/view/0x951fa7e07d6e852eb4535331db373786f5ab7249bb31d94cc4bd05250ebb6500" rel="noopener noreferrer" target="_blank">Devfolio's</a> quadratic voting for hackathons</li><li><a href="https://x.com/guildxyz/status/1699085302281671124?s=20" rel="noopener noreferrer" target="_blank">Guild</a> using attestations to gate communities & chat groups</li><li>and many more...</li></ul><p><br></p><h2>Where We're Focused</h2><ul><li>We're actively building out improvements to the attestation explorer experience</li><li>Continued builder education, awareness, and adoption</li><li>Building unique integrations such as (zkps generated from attestations)</li><li>Building out our builder programs that help promising attestation founders get access to the right people & support in the industry</li></ul><h2><br></h2><h2>Get In Touch With Us & Check Out Some Community Content</h2><p>Community Content:</p><ul><li><a href="https://www.youtube.com/watch?v=RsIBqExwsT8" rel="noopener noreferrer" target="_blank">Ethereum Attestation Service - Unlocking Decentralized Identity - Bankless Podcast</a></li><li><a href="https://www.youtube.com/watch?v=8bbkI5MIWm8&" rel="noopener noreferrer" target="_blank">Ethereum Attestation Service (EAS) - Explainer Video - Vaibhav Saini</a></li><li><a href="https://mirror.xyz/ryanyyi.eth/Q0NMTOpazMUeXuifPmxebxnyVJuUExEH7K8Qbu7HLy0" rel="noopener noreferrer" target="_blank">ELI5 Ethereum Attestation Service (EAS) - Why You Should Care - Ryan Yi</a></li><li><a href="https://dune.com/ryanyyi/eas" rel="noopener noreferrer" target="_blank">Onchain Attestation Stats - Dune Dashboard - Ryan Yi</a></li></ul><p>EAS Channels:</p><ul><li><a href="https://twitter.com/eas_eth" rel="noopener noreferrer" target="_blank">EAS Twitter (@eas_eth)</a></li><li><a href="https://mirror.xyz/0xeee68aECeB4A9e9f328a46c39F50d83fA0239cDF" rel="noopener noreferrer" target="_blank">Mirror Articles</a></li><li><a href="https://t.me/+EcynOr0iFu03MTYx" rel="noopener noreferrer" target="_blank">Builder Telegram</a></li><li><a href="https://github.com/ethereum-attestation-service" rel="noopener noreferrer" target="_blank">EAS GitHub</a></li></ul>