Has anyone field-tested strategies to fighting allegations like this and would like to share them? Something I remember from a previous discussion around this topic was writing everything in e.g., Google Docs, where there are captured versions every few seconds. The idea being that the version log shows that one did not copy-and-paste larger chunks of the text.
Or even just set up a "computer cam" that films yourself working. Most laptops can handle this pretty effortlessly with their encode blocks.
At some level, there has to be some trust, or a system (e.g., in person proctored exams) would have to be used instead.