Stéphane de Barbanson

The Witness turns one photo of an old landmark into a short film in which the landmark tells its own story, and every caption links to the page it came from. Take or pick a photo of a windmill, a lighthouse, a chapel or an old tree. Muse Spark recognises the landmark (from where the photo was taken, from the picture alone, or from a typed name) and asks you to confirm before anything is spent. It then searches the web and drafts the landmark's history as dated claims. Every claim goes to an independent checker, Muse Spark Open on Baseten, which has to find it in the exact sentence of a fetched source page; what it can't confirm is left out. Muse Image paints the eras the sources support, starting from your own photo, and Muse Spark checks each painting against the facts before it is kept. The result is a film of about 30 to 40 seconds in the landmark's own voice, followed by the facts that were in it and more checked facts, each with its source. The rule is simple: no source, no scene. When the sources are too thin, there is no film: you get the facts that did pass, each with its source. Where sources disagree (Rosslyn Chapel's founding is given as 1446 or 1456), the film doesn't pick a side and opens with its first checked date instead. While the film is made, the page shows every step and every model call, live. Why it matters: stories about local landmarks are told everywhere, on plaques, tours and websites, and many are only half true. A heritage group can prepare a reviewed film per monument and link it from a QR plaque, and a visitor can make one on the spot. Try it: the judge page (linked in the README) has three finished example films (a windmill, an ancient oak and a lighthouse) and lets you make your own in about seven to eight minutes. Nothing of it existed before 26 October 2026; it was built during the hackathon.