zhenech on Nostr: Is there an established form of storing metadata about downloaded files? Like source, ...

Is there an established form of storing metadata about downloaded files? Like source, license, date?

Storable in git, so no (extended) file attributes, and human readable without any special software.

I mean, I can just drop a RFC822/YAML file with
```
source: <URI>
license: <SPDX>
date: <date>
```
next to the downloaded file, but surely I am not the first one to want this?!