Actually you can make something more or less like that by signing a tag, and, as you pointed out, releasing it. this makes it convenient to check that no previo

Actually you can make something more or less like that by signing a tag, and, as you pointed out, releasing it. this makes it convenient to check that no previous commit as been removed, as git signs a hash of the tag which is a hash of all the hashs in the history (the tag can still be deleted, but just to show the convenience added)