Worksill Keeps Construction-Site Evidence in a Record That Cannot Be Rewritten

Why it surfaced

Worksill turns the familiar construction-site notebook, camera roll and group chat into a four-minute filing ritual, with entries hash-chained using SHA-256 and corrections appended rather than overwritten. Its unusually sharp premise is that delay disputes are decided less by what happened than by what can be proved.

A pre-launch daily log for contractors that records labour, plant, weather, progress and geotagged photographs in an append-only file.