But what is FU10? And why does Galicia, a region famous for its pulpo a la gallega and Celtic bagpipes, serve as the global epicenter for this specific brand of "night crawling"?

This is the core of the work. The crawler looks for "FU10 flags"—digital watermarks left by insurance firms and environmental NGOs. These flags mark illegal wells, unregistered percebeiros (goose barnacle harvesters), or hidden alijos (drug stashes). The crawler does not delete data; they "crawl" over it, overlaying historical orthophotos from the 1956 Vuelo Americano (a US spy flight series) to prove that a structure existed before the ban.