what is your threshold for accuracy
I don't know. Problem with verifying those data is--its one shot attempt. Because, those data can be used only once not second time as people on other end will get alert. My explanation sucks!
You get it? Let me try to explain.
Those 2000 data will be of prominent people and therefore, I can verify each and every one because they can be used only once. For example, I tried checking Data No-1500 and when I'll do that he'll come to know that he's in target and that data will be for single use only just like condom. Therefore, I can check each and every one. I've to rely maths here.