Hello,
I found out that my formula for computing the hash-rate of a block may be inaccurate here it is:
hashrateOfaBlock = (difficultyOfaBlock * pow(2,32)) / (150*1000.00);
150secs are the 2,5 minutes as retarget time.
If I compute all Blocks of the 16. January I get: 6,028,893.322 Khash/sec
But on bitinfocharts I get 6.69 Mhash/sec ([url=http://bitinfocharts.com/comparison/hashrate-ftc.html]http://bitinfocharts.com/comparison/hashrate-ftc.html[/url])
What could be wrong?
Best regards an happy weekend: coinora