The ultimate test to be sure you understand a concept is to try and teach it to someone. The way to understand a concept enough to teach it to someone is to implement it.
I didn’t exactly just sit down one afternoon and decide to write a few blog posts about GUIDs because I know everything about them. It actually all started with a few weeks earlier wanting to understand the mechanics behind the identifier.
First I did a bit of a Google - good luck jumping right into the spec! Then once I had a high-level understanding I read the spec. Then to make it all stick I implemented the spec. Then wrapped it all up in a little website, guid.one - you know, just for fun.
There’s nothing groundbreaking here but hopefully it’s in a format that’s easy to understand so you know what’s going on with those little über uniquer identifiers!