Agreed. So many different pieces all working in unison.

satoshi_in_the_classroom

Of course it's a bit complicated, because many people all over the world use it, it's just that the way to achieve it is different.

sangekrypto

You will find these useful-
- https://www.lifewire.com/what-does-checksum-mean-2625825
- https://codesigningstore.com/what-is-checksum-how-it-works

Bitcoin is so beautifully complex.

Like you said... I've been trying to understand what a checksum is lately...