{"title": "Ethereum Attestation Service (EAS)", "logoImg": "bafkreigbzrqpcqrg7dztert2drj3ndadlapwm3mjqumo23yll4opmbmnc4", "website": "https://attest.org", "bannerImg": "bafkreicurzdjijcspkv6wrxzkr4uh6heiusbgr2ppqy66ye6apzyuac45q", "createdAt": 1723229871749, "userGithub": "brycealan", "credentials": {"github": {"type": ["VerifiableCredential"], "proof": {"jws": "eyJhbGciOiJFZERTQSIsImNyaXQiOlsiYjY0Il0sImI2NCI6ZmFsc2V9..xMbBPKen6nI3Ry9I3alQs8ZHgS1Nx17s6FIDDaGUVX0ql7bXUGxW-RlMiDrpGhMzSA4ES7ukQCuD5zoKVrM9Cg", "type": "Ed25519Signature2018", "created": "2024-08-09T18:57:08.622Z", "proofPurpose": "assertionMethod", "verificationMethod": "did:key:z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC#z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC"}, "issuer": "did:key:z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC", "@context": ["https://www.w3.org/2018/credentials/v1"], "issuanceDate": "2024-08-09T18:57:08.622Z", "expirationDate": "2024-11-07T18:57:08.622Z", "credentialSubject": {"id": "did:pkh:eip155:1:0x3e95B8E249c4536FE1db2E4ce5476010767C0A05", "hash": "v0.0.0:+xnSoDzzX5xWR8p3E89ozrqYF3jlP79wxJayQWRMBIc=", "@context": [{"hash": "https://schema.org/Text", "provider": "https://schema.org/Text"}], "provider": "ClearTextGithubOrg#ethereum-attestation-service#106047649"}}, "twitter": {"type": ["VerifiableCredential"], "proof": {"jws": "eyJhbGciOiJFZERTQSIsImNyaXQiOlsiYjY0Il0sImI2NCI6ZmFsc2V9..osolUaFb2SGU9gogfChu7FoEuAZKpHgpnksU-gJYBxOziY2gmRlkYHc1enlnpXSK4mNY9yohd_DrEVa45VpmBQ", "type": "Ed25519Signature2018", "created": "2024-08-09T18:52:47.601Z", "proofPurpose": "assertionMethod", "verificationMethod": "did:key:z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC#z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC"}, "issuer": "did:key:z6MkghvGHLobLEdj1bgRLhS4LPGJAvbMA1tn2zcRyqmYU5LC", "@context": ["https://www.w3.org/2018/credentials/v1"], "issuanceDate": "2024-08-09T18:52:47.601Z", "expirationDate": "2024-11-07T18:52:47.601Z", "credentialSubject": {"id": "did:pkh:eip155:1:0x3e95B8E249c4536FE1db2E4ce5476010767C0A05", "hash": "v0.0.0:eNdhHBqDxhxkE8MtngPe9llNRVb6VQEeR00RKf6xy5E=", "@context": [{"hash": "https://schema.org/Text", "provider": "https://schema.org/Text"}], "provider": "ClearTextTwitter#eas_eth"}}}, "description": "**EAS** is a public infrastructure for making onchain and offchain attestations about anything. \n\n**Public Good. Open-Source. Token Free. Permissionless.**\n\n## Attestations?\nAttestations are digital signatures on structured data, enabling entities like smart contracts, individuals, or businesses to verifiably state facts about anything, i.e. \"I attest this information is valid\". We've provided extensive documentation to help you quickly [**learn more about the core concepts**](https://docs.attest.org/docs/category/core-concepts) of EAS and attestations.\n\nAttestations serve as a primitive for building more trustful experiences in online and onchain products. With over **2 million attestations** made, EAS is empowering developers to create reliable and transparent applications. Since you can attest to almost anything, the [**use cases and ideas to build**](https://docs.attest.org/docs/category/ideas-to-build) are virtually limitless.\n\n## Arbitrum Traction\nDid you know? The first mainnet deployment of EAS was on Arbitrum \ud83c\udf89. Here are some standout use cases:\n- The [**Arbitrum Arcade used EAS**](https://arbitrumfoundation.medium.com/introducing-arbitrum-arcade-8681ce85f20d) as a way to attest to profiles and achievements in the gamging campaign via Clique.\n- Devfoliio built a [**quadratic voting system**](https://arbitrum.easscan.org/schema/view/0x951fa7e07d6e852eb4535331db373786f5ab7249bb31d94cc4bd05250ebb6500) quadratic voting system for hackathons, enabling participants to vote on prize distribution.\n- Gitcoin Passport uses EAS as an oracle service to [**attest to stamps and scores onchain.**](https://arbitrum.easscan.org/schema/view/0x8ae6ee946bf1c936584cacc969bf7e9d0b274631c818df7e45c246051b364341).\n\n## Developer tools from the community\n- [**Open-Source SDK:**](https://github.com/ethereum-attestation-service/eas-sdk) easily integrate EAS into your projects.\n- [**Open-Source Indexer:**](https://github.com/ethereum-attestation-service/eas-indexing-service) efficiently index attestations.\n- [**GraphQL API:**](https://docs.attest.org/docs/developer-tools/api) for querying attestation data\n- [**EAS Attestation Explorer:**](https://arbitrum.easscan.org/) a no-code explorer to make and verify attestations\n- [**EAS Metamask Snap:**](https://docs.attest.org/docs/developer-tools/metamask-snap/) decode onchain attestation data before signing\n- [**C-ATTS:**](https://77ydd-naaaa-aaaal-qi2ja-cai.icp0.io/) allows for the creation of composite attestations based on custom queries and processing logic.\n- [**Attest Fest:**](https://attest-fest.party/) easily batch create attestations onchain\n\n\n## Where we're going next\nOur mantra and focus is simple: **\"Help builders build faster\"**. We are continuously working to improve the developer experience by expanding the protocol's functionality, offering new tools, and creating more comprehensive examples and tutorials. As we grow, your support accelerates the development of EAS and the broader attestation ecosystem, helping to build a more trustful internet.", "logoImgData": {}, "bannerImgData": {}, "projectGithub": "ethereum-attestation-service", "projectTwitter": "eas_eth"}
Ethereum Attestation Service (EAS)
**EAS** is a public infrastructure for making onchain and offchain attestations about anything. 

**Public Good. Open-Source. Token Free. Permissionless.**

## Attestations?
Attestations are digital signatures on structured data, enabling entities like smart contracts, individuals, or businesses to verifiably state facts about anything, i.e. "I attest this information is valid". We've provided extensive documentation to help you quickly [**learn more about the core concepts**](https://docs.attest.org/docs/category/core-concepts) of EAS and attestations.

Attestations serve as a primitive for building more trustful experiences in online and onchain products. With over **2 million attestations** made, EAS is empowering developers to create reliable and transparent applications. Since you can attest to almost anything, the [**use cases and ideas to build**](https://docs.attest.org/docs/category/ideas-to-build) are virtually limitless.

## Arbitrum Traction
Did you know? The first mainnet deployment of EAS was on Arbitrum 🎉. Here are some standout use cases:
- The [**Arbitrum Arcade used EAS**](https://arbitrumfoundation.medium.com/introducing-arbitrum-arcade-8681ce85f20d) as a way to attest to profiles and achievements in the gamging campaign via Clique.
- Devfoliio built a [**quadratic voting system**](https://arbitrum.easscan.org/schema/view/0x951fa7e07d6e852eb4535331db373786f5ab7249bb31d94cc4bd05250ebb6500) quadratic voting system for hackathons, enabling participants to vote on prize distribution.
- Gitcoin Passport uses EAS as an oracle service to [**attest to stamps and scores onchain.**](https://arbitrum.easscan.org/schema/view/0x8ae6ee946bf1c936584cacc969bf7e9d0b274631c818df7e45c246051b364341).

## Developer tools from the community
- [**Open-Source SDK:**](https://github.com/ethereum-attestation-service/eas-sdk) easily integrate EAS into your projects.
- [**Open-Source Indexer:**](https://github.com/ethereum-attestation-service/eas-indexing-service) efficiently index attestations.
- [**GraphQL API:**](https://docs.attest.org/docs/developer-tools/api) for querying attestation data
- [**EAS Attestation Explorer:**](https://arbitrum.easscan.org/) a no-code explorer to make and verify attestations
- [**EAS Metamask Snap:**](https://docs.attest.org/docs/developer-tools/metamask-snap/) decode onchain attestation data before signing
- [**C-ATTS:**](https://77ydd-naaaa-aaaal-qi2ja-cai.icp0.io/) allows for the creation of composite attestations based on custom queries and processing logic.
- [**Attest Fest:**](https://attest-fest.party/) easily batch create attestations onchain


## Where we're going next
Our mantra and focus is simple: **"Help builders build faster"**. We are continuously working to improve the developer experience by expanding the protocol's functionality, offering new tools, and creating more comprehensive examples and tutorials. As we grow, your support accelerates the development of EAS and the broader attestation ecosystem, helping to build a more trustful internet.
Ethereum Attestation Service (EAS)