I touched on this a little in this comment https://news.ycombinator.com/item?id=38075723 https://news.ycombinator.com/item?id=38075723 - but tldr; OSM has it's

I touched on this a little in this comment https://news.ycombinator.com/item?id=38075723 https://news.ycombinator.com/item?id=38075723 - but tldr; OSM has it's own versioning model, and their data model isn't a great fit for the flat-table structure of most of the GIS data we commonly work with. That said, the general issue of "data supply chains" and keeping track of who did what, and when, is largely unsovled outside of OSM, and if you're looking after your own GIS data and you're concerned with tracking and detecting unwanted changes, Kart is a great option. You get all the cryptographic verifyability of git for free.