OID value: 1.3.6.1.5.5.7.48.3
OID description:
id-ad-timeStamping OBJECT IDENTIFIER ::= {iso(1)
identified-organization(3) dod(6)
internet(1) security(5) mechanisms(5) pkix(7)
ad(48) timestamping(3)}
URL for further info: http://www.ietf.org/internet-drafts/draft-ietf-pkix-time-stamp-14.txt
See also the OID Repository website reference for 1.3.6.1.5.5.7.48.3