Extant

If something is extant then it exists in the present, often referring to something that has weathered time and still exists today.

The term is often used by historians and literary scholars.

Examples:

"The only extant manuscript (of Le Morte D'Arthur) that predates Caxton's edition is in the British Library, London." - Encyclopaedia Britannica

"The earliest extant manuscript written in Sylhet Nagri is Talib Huson by Gholam Huson (1549)." - Banglapedia