libmircookie-dev 0.20.3+16.04.20160322-0ubuntu1 (s390x binary) in ubuntu xenial

 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.