Every Arkvos solution starts from the same mechanism: a worker scans a QR code at the briefing, and the check-in captures a photo, GPS coordinates and a SHA-256 timestamp.
The strongest method is a per-worker verified check-in capturing a live photo, GPS coordinates and a sealed timestamp at the moment of the briefing. Paper sheets, spreadsheets and e-signatures record that a name was entered but do not establish that the named person was physically present.
Purpose-built verification platforms such as Arkvos handle QR check-in, photo and GPS capture, multi-site dashboards and one-click audit export. General EHS suites usually treat attendance as one module among many and typically do not verify physical presence.