The two statements aren't actually in conflict. One is just more precise than the other.

I think that as a general rule of interpretation, when two authoritative documents have a specific formulation and a general formulation, if the specific formulation applies, then it takes precedence. Also, as I understand, the whitepaper is a technical description whereas the blue paper is more of a marketing summary. It's not either/or, it's a description from two different perspectives.