Ethereum Attestation Service (EAS)

Padrão de Contrato Inteligente

Ethereum Attestation Service (EAS): an open-source, permissionless, tokenless infrastructure public good for making attestations onchain or offchain. Two smart contracts: a schema registry and an attester; schemas can be registered for any use case and may carry a resolver contract for onchain verification or payments. An attestation is a digital signature on structured data. It makes no assumption about schema structure or use, and is not an identity provider.

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Detalhes

Licença MIT; https://github.com/ethereum-attestation-service/eas-contracts
Status de Dev 🟢 Ativo
Proprietário Not stated by the project (GitHub organisation "Ethereum Attestation Service"; no legal entity named in the cited sources).
Órgão de Governança None stated. The documentation describes the project as an open-source public good built by the community for the community; no governing body, legal entity or decision process is documented in the cited sources.
País Not stated by the project.
Ano de Início 2020
Stack Solidity / EVM (EAS and SchemaRegistry contracts, resolver contracts, EIP-712 proxy, indexer contract); TypeScript SDK
Financiamento Not stated by the project in the cited sources. The contracts repository carries a funding.json pointing to an Optimism retroactive-funding project entry; the docs describe grants, retroactive funding and donations as ways such public goods are funded.
Última Investigação 28 de out. de 2026

Visão de topologia

Esta ferramenta no centro e o que se relaciona diretamente com ela. Cada linha nomeia o tipo de relação.

Visão de topologia: Ethereum Attestation Service (EAS)Esta ferramenta no centro e o que se relaciona diretamente com ela. Cada linha nomeia o tipo de relação.EthereumAttestation…Human Passport (Base de, Implementações em conformidade, Armazenamento para)HumanPassportWindfall Protocol (Base de, Protocolo falado por)WindfallProtocolEthereum (Construído sobre)Ethereum

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Domínios de Caso de Uso

Identidade e Confiança

Capacidades

Atestações portáteis Formatos interoperáveis

Padrão de Contrato Inteligente Atributos

Origens A common, neutral way to make verifiable statements onchain and offchain, so reputation, voting, governance, provenance and social graphs can be built on a shared primitive
Formatos de Dados ABI-encoded schema-defined attestations; EIP-712 signed offchain attestations; GraphQL for queries
Termos MIT; free to use; tokenless
Fundos Not stated by the project.
Baseado Em Ethereum smart contracts; EIP-712 typed signing; ERC-1271 signature verification (EIP1271Verifier in the repository). The repository credits Bancor V3 as the framework it was inspired by and adopted.
Permissões Permissionless: anyone can register a schema and make attestations; schema creators may attach resolvers that restrict attesters or recipients, or require payment.
Ferramentas de Desenvolvimento eas-sdk (TypeScript/JavaScript), indexer contract, EAS Explorer (easscan.org), GraphQL API, example resolvers
Maturidade / Padronização do Protocolo Deployed protocol with versioned contracts (0.26 to 1.3.0 across networks); not an EIP or other standards-body specification.
Estrutura de Confiança Attestations are signatures by an attester on a schema; whether to trust an attester is left to the consumer; the docs state the protocol does not judge the value of an attestation.
Domínio de Aplicação-Alvo Reputation systems, provenance of information or assets, voting and governance, registries, social graphs, identity-adjacent credentials
Modelo de Implantação Per-chain singleton contracts (EAS and SchemaRegistry); onchain or offchain attestations; on OP-Stack chains the contracts sit at the standard predeploy addresses 0x4200…0021 and 0x4200…0020
Tipo de Padrão Attestation Standard
Ecossistema Ethereum and EVM networks

Relacionamentos

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