/usr/share/doc/pyca/crontab.sample is in pyca 20031119-0.1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #
# Regular cron jobs for the pyca package
#
0 3 * * * root ca-cycle-priv.py
0 4 * * * root ca-cycle-pub.py
|