The best way is to make multiple copies on multiple storage mediums and regularly check for any data degradation. There is no one single format that will last long term. Everything has a chance of failure for an infinite number of reasons.
You only need to store one TB, just buy a pair of 2TB hard drives, check the data yearly, and then whenever the warranty expires buy some new drives and copy the data over. That’s about as simple and safe as it’ll be for you.
Use the wikiteam’s dumpgenerator.
But you don’t understand! My question is actually unique! I would know that, because none of the 0 other posts I read mention my incredibly specific and niche use case that I developed because I don’t understand the fundamentals!
I don’t think any of your rules actually have anything to do with compatibility between operating systems.
As long as the filename doesn’t contain <, , :, ", /, \, |, ?, or * then it can exist on any operating system.
If you’re going to use the file creation time as the filename, just adhere to ISO 8601 with precision to the millisecond. If you’re creating multiple image/video files at the same millisecond, your engineering staff can solve that problem for you.
Instead of using keywords, have you heard of this thing called a folder? It’s great for organizing arbitrary files!
That’s not what fragmentation or defragmentation means.