📜 Registrar — legal records & long-term validity
Self-maintaining long-term validity ★ Live
Qualified timestamps → PAdES-B-LTA; the renewal pass re-stamps before expiry, indefinitely.
Qualified timestamps produce PAdES-B-LTA (seal → sign → timestamp). A renewal pass detects timestamps nearing expiry and re-stamps them before they lapse, layering rather than replacing — so documents stay legally verifiable indefinitely. Self-maintaining validity of this kind is rare even among dedicated document vaults.