Hi Product Hunt! 👋

I’m the maker of WaveSign.

As a material science researcher, I’ve spent years working with electron microscopy and complex diffraction patterns. I realized that the same principles we use to characterize materials—plane wave diffraction and phase shifting—could be applied to digital security.

In an era of AIGC and instant digital editing, proving the authenticity of a document or an image is harder than ever. I built WaveSign to provide a way to sign files that is:

Truly Invisible: Unlike standard watermarks, our phase-shift technology embeds signatures into the file structure without damaging image quality or word readability.

Hyper-Sensitive: Even a single-pixel edit or a tiny text change in a PDF completely invalidates the signature.

Developer Friendly: I’ve released a public repo with a detailed user guide and demos to show exactly how it works.

I’m currently building this as a "one-person AI company," focusing on tools that bridge deep science with practical AI protection.

I’d love to hear your thoughts on how you’d use invisible signatures—whether for protecting creative work, verifying legal documents, or securing AI exports. I'll be here all day to answer your questions!

Check out the live demo here: https://phasesig-rbek68ksvn9aty6...
Public Repo & Demos: github.com/roloport/WaveSign

WaveSign

Invisible file authentication for images and PDFs

Invisible file authentication for images and PDFs