SealZero – Zero-knowledge proofs for authentic, privacy-safe images

Summary: SealZero enables proving image and document authenticity using zero-knowledge proofs generated entirely client-side. It allows selective masking of sensitive content while providing cryptographic proof of integrity without sending data outside the browser. Proof size remains under 11kB.

What it does

SealZero generates cryptographic proofs that verify authenticity and integrity of redacted images or documents, operating fully within the user's browser. It supports selective masking of sensitive parts before sharing.

Who it's for

It is designed for users handling sensitive documents who need to share redacted versions with verifiable authenticity, such as HR professionals.

Why it matters

SealZero addresses the challenge of proving authenticity of redacted files without exposing sensitive data or relying on external servers.