How calculate mining hash rate (H) from just difficulty (D) and change in block creation times (ΔT) ?
H = ΔT / D
but I'm having trouble confirming that.
Part of the difficulty is that the values fluctuate so much that if different people take different averages they'll get different answers.
Take block 4,000,000 (4M) as an example...
D = 1,096,303,811,407,388 ΔT = 4 seconds between block #(4M + 1) and block #4M
So H = 4 / 1,096,303,811,407,388 = 3.6E-15 ?