libmircookie-dev 0.28.1+18.04.20171030-0ubuntu1 (amd64 binary) in ubuntu bionic

 libmircookie provides a simple mechanism for a group of cooperating processes
 to hand out and verify difficult-to-forge timestamps to untrusted 3rd parties.
 .
 This package contains the development headers for building programs that
 generate or verify the attestable timestamps.