One sentence to a signed export. 41 seconds.A real build, start to finish: one model writes the site, a second from a different model family reviews it, the whole project downloads signed, and anyone can check it in their browser.Watch the video (MP4, 41 seconds)The whole prompt: “A one-page website for a barbershop called Northside Cuts: services with prices, opening hours, and a booking request form.”

0:00 Describe it. One sentence on the home page: a one-page website for a barbershop, with prices, hours and a booking form.

0:06 Two models at work. Qwen 3 Coder writes the site. GLM 5, from a different model family, reviews the change. The wait is sped up.

0:14 Reviewed and applied. The review passed it, so it went in on its own, as a version one click undoes. This build cost 45 credits.

0:17 The site. Plain HTML and CSS with AI pictures, live in the preview.

0:22 Export, signed. The whole project downloads as a ZIP, with a signed PROVENANCE.json and a verifier that runs offline.

0:28 Anyone can check it. Dropped on the verify page: every file matches what was signed, and which models wrote and reviewed it. Nothing is uploaded.

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