Zen International Patents and Trademarks

National Center for Industrial Property Information and Training in Japan(INPIT) started Timestamp Token※ Deposition Service on March 27, 2017.

INPIT is supposed to keep “Key” to prove the existence of electronic documents with no charge.

This service allows users to download timestamp tokens and request to issue their certificate of deposition when required.
※Timestamp Token is a combination of hash value of a subject electronic document and its date-time information, both of which should be issued by a private time authentication service operator authorized in Japan.