I'll probably get downvoted into oblivion for mentioning blockchain tech, but this might at least help, maybe not in its current form but... I did not follow that project, but there do exist some concepts in this direction, e.g. this: https://techcrunch.com/2021/01/12/numbers-protocols-blockcha...
The idea of having a public record that attests to when an event happened is interesting, although not sure it has to be blockchain for it to be useful.
beisner|3 years ago