Thank you for the information.
There's also the very wonderful dsget:
dsget computer -sid
FWIW, it's a lot faster than psgetsid.
Aha, best to use:
which gives me the SID as seen in Hyena.
I'm getting the SID via Hyena on: DomainName>Computers>ComputerName
Right-clicking for properties, then going to Object
Let me know where in Hyena you are seeing the computer's SID. If its an Active Directory display, then its coming from the value of the 'objectsid' attribute