Amazon has 3 different pissed off cats calendars, but not this one.

There are some monitoring tools which take a snapshot of the process table every few minutes. If you happen to run one of those, and your process happens to be running when the snapshots is taken you can catch it.

If this is a postgresql server and you have logging turned up with pids being logged, and the pin in question was a database process, you can probably find it in the database logs.