This one worked for me:
and this
just gave me an error
Sorry that my command didn't work. It does work for me. I did notice that I'm running a newer version, so perhaps the command changed somewhere along the way.
To be fair, I've also spent a lot of time both researching this stuff in my spare time and studying it in college and grad school. I can totally understand how the layperson would look at commands that produce what look like gobbledygook and say, "How the hell does this prove anything?" It does. It's just not immediately apparent, even to people who have a little crypto background.