Something is wrong with the way the Net and Pool hash rates are determined.  For example, the home page currently shows GLD with a network hash rate of 54.8.  Awhile ago it was in the low 60s, so somewhere around 50s and 60s.  The pool hash rate says 48.1 and awhile ago was 41.  So in the mid-40s.  If I look at the GLD.Pool website, they are showing mid-30s during this time period.  So between H2C and GLD.Pool, that accounts for 130% of the network hash rate, as quoted on the home page.  Lest you think those rates are wrong, looking at the transactions for mining during this period, it looks like the reward rate is <20% of what it should be, statistically, for the quoted pool hash rate / net hash rate.  If I divide my hash rate by the pool hash rate, my transaction rewards look about right, so it's not the pool hash rate that appears to be wrong.  Coinwarz agrees with this net hash rate, though.  So I'm left wondering what's going on here.

Also looked at AUR.  The net rate is shown as 38 GH/s.  Mining-dutch says it's over 400 GH/s.

So what's the source of these numbers, and why is it so wrong?