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    Ethereum Attestation Service

    Also appeared as EAS

    EAS is an infrastructure public good for making attestations onchain or offchain about anything. Attestations are digital signatures on structured pieces of data used to build more trust. The protocol is open-source, permissionless, and token-free. Attestations are a simple yet powerful primitive that can be used in many use cases and we're excited to see what you build! Learn more at https://docs.attest.org. Did you know? - 1M+ attestations have been made in the Superchain from large ecosystem builders like Gitcoin, Coinbase, Optimism Foundation, and others. - EAS is natively integrated into the OP Stack linked by two predeploy addresses? Look for predeploy addresses 0x420...021 & 0x420...020 on Base & Optimism. Dev Tools - SDK: https://github.com/ethereum-attestation-service/eas-sdk - API - https://docs.attest.org/docs/developer-tools/api - Optimism Explorer - https://optimism.easscan.org - Base Explorer - https://base.easscan.org

    Prize money awarded
    $35,000
    Prizes
    23
    Winning projects
    23
    Hackathons
    5
    Largest prize
    $4,000
    Active
    2023–2024

    What they reward

    Tech their winners favour

    Share of Ethereum Attestation Service's winners using it, against all entries at the same hackathons.

    • ens17% of winners · 4% of entries
    • ethereum78% of winners · 29% of entries
    • world-id22% of winners · 9% of entries
    • optimism35% of winners · 16% of entries
    • zk17% of winners · 8% of entries
    • ipfs22% of winners · 12% of entries
    • the-graph13% of winners · 9% of entries

    Recurring prizes

    Tracks offered at more than one hackathon.

    • Ethereum Attestation Service2 hackathons · about $5,000 · last 2023

    Hackathons

    1. Superhack 2024 Aug 2–16, 2024$10KGold6$10K
    2. Istanbul Nov 17–19, 2023$5KProvider4$5K
    3. Superhack Aug 4–18, 2023$5K–5$5K
    4. Paris Jul 21–23, 2023$10KPillar4$10K
    5. Waterloo Jun 23–25, 2023$5KProvider4$5K

    Reviewing deployed contracts? Tough! Even tougher in a multi-chain world. Based on our Operational Security experience at MakerDAO, we bring you On-Chain Review: a code viewer that visualizes deployed contracts across chains with trusted attestations from colleagues and auditors.

    $10,013 · Optimism · 🚀 Optimism — 🥇 Best Superchain Dev Tools & Infra · +4 more

    RepoRewards is a cool blockchain-based platform designed to make rewarding open-source contributions on GitHub super easy and transparent.

    $9,549 · Optimism · Vote! · +4 more

    DeDe is a trustless scaling infrastructure for e-commerce & delivery platforms. Think of us as an L2 for deliveries like Amazon, DHL, FedEx, etc. We provide trustless deliveries while maintaining integrity and security.

    $7,568 · Base · Build a Consumer Product · +7 more

    Pulse is a mobile-first social app that improves your feed based on your social graph and in-app interactions. Powered by a dynamic recommendation engine, your content is in perfect sync.

    $7,250 + 1,500 PUSH · Base · Best use of Account Abstraction and Base Paymaster · +4 more

    Developer tool for custom attestation schemas. Built on OP Stack for fast transactions, secured by Eigen DA, and leverages Worldcoin ID for user verification. Manage, monitor, and analyze attestations efficiently.

    $6,079 · Optimism · Just [improve] it · +3 more

    MedX leverages blockchain to secure medical records and streamline prescription processes, ensuring privacy and efficiency in healthcare management.

    $5,579 · EAS · Best Real World Use Cases for Attestations · +3 more

    SquirrelPay is an on-chain, privacy-preserving payroll solution that uses attestations to prove legitimacy of funds

    $4,500 · Ethereum Attestation Service · 🥇 EAS — Most Innovative · +2 more

    Safeguard your blockchain experience! Trust Explorer: a contract scoring system with Ethereum attestation & worldID verification for secure reviews. Say no to untrustworthy contracts. 🛡️

    $4,213 · Ethereum Attestation Service · EAS · +2 more

    Document signer with identity verifiability through WorldCoin proofs and attestations (EAS)

    $2,530 · EAS · Best Real World Use Cases for Attestations · +2 more

    Combine chained transactions to shortcuts, define inputs, and execute from EOA or a Safe. Share these Shortcuts with others.

    $1,750 · Ethereum Attestation Service · 🥇 EAS — Best Use · +2 more