Why don’t you demonstrate some of that alleged understanding to answer the question? Start by producing evidence supporting your belief that there is some significant problem with transaction history modification and move on to why that problem cannot be more efficiently addressed using proven cost-effective techniques.

Maybe try Googling for once

This is not an effective way to convince someone you know what you’re talking about.

I'm not interested in you right now. Why do you keep replying to me? Is this really appropriate for HN? I have to use these replies preciously.