Accurate File Dates for Kiefer's Archives

Behold, actual data from this webserver:

{
    ...,

    "Gifts.md": {
        "543": {
            "secs": 1577133944.0,
            "text": "Mon Dec 23 14:45:44 2019"
        }
    },
    "Godot Unit Architecture.md": {
        "6203": {
            "secs": 1634011938.1197774,
            "text": "Mon Oct 11 23:12:18 2021"
        }
    },
    "Good Foods and Ichor.md": {
        "4134": {
            "secs": 1677951569.0,
            "text": "Sat Mar  4 11:39:29 2023"
        }
    },
    ...
}

I have a lot of files ^(what?) and I like to know how old things are.

It's personally important to me that I keep archives, as I've been making things since I was little and have moved and duplicated stuff from machine to machine over the years.

There's two ways I do this. One is to index earliest files ages found by file name, which is what I do for my notes and articles, as those rarely change file names (and a renamed version is generally renamed for a reason, ie. it's distinct enough to warrant renaming).

For non-text file types or for larger and older archives where there are more cases where the same file has been used in multiple places with different names, I have an open source notebook I use which you can try out for yourself!