No you didn't address my first concern. Which is, it's very easy for a company to write a blog post full of promises saying anything they want (e.g "1 in a tril

No you didn't address my first concern. Which is, it's very easy for a company to write a blog post full of promises saying anything they want (e.g "1 in a trillion chance of false positives"), but it's all just words without some objective source giving oversight into the process. Take for example point 2. According to what they've written here, yes that's how it works. But the point is, you have no flipping clue what's actually true, just what they typed. There could be debug modes, the false-positive numbers could be entirely incorrect, they never said what the "threshhold number" is, so that could be 1. They could have even meant everything that they said, but there could be a bug in the code. Suppose there is a bug they discover, and the false-positives are exponentially higher than they quoted. Do you think they would publicly admit that? Also how big are these thumbnails and under what circumstances do they have access to them?