Quote from: danielW on October 30, 2017, 08:18:06 AM

I.e. If I wanted to re-implement this myself what would I need to do?

I think you should hire Peter Todd or ask him what to do. Grin

Quote

but still dont know how open timestamps actually works.

Hmmmm...
Have a look to https://app.originstamp.org/home
Let us call it "close timestamps" contrary to "open timestamps"
I think it is not very hard to compare these two projects and understand the technique.
If no, you must give up and switch to something else.