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    ← All builders
    Projects
    3
    Winning projects
    2
    Prize money (team total)
    $62
    Hackathons
    3
    Active
    2022–2026

    Projects

    SureBuy is a decentralized verified marketplace where sellers are authorized to list products. Sellers can request attestation from wholesalers, who verify the product's authenticity using Sign Protocol.

    $62 · Sign Protocol · Sign Everything Pool Prize

    A marketplace with unique identification using Privacy-Preserving Proof-of-Personhood Protocol (PPPoPP) to ensure that if a person is doing something for the first time.

    Worldcoin · Pool Prize

    An open intent layer for ads. Platforms publish intent. Agents pay to reach it on Hedera.

    express · hedera · llm · nextjs · tailwind

    Projects are linked from GitHub commits to each project's repo during its hackathon, so some may be missing or wrong. Prize money is each project's total, shared with teammates. Is this you?