How reported hashrates on your miner are calculated and what the stratum server from suprnova gets are 2 totally different things! Just because your miner tells you you got 99 MH/s doesn't mean that you submit correct shares that are worth 99 MH/s (among other tings). The server actually estimates your hashrate based on submitted shares. It has no idea how much hashing power you have but calculates it based on your shares. Therefore, ususally the reported hashrate is not correct.
In other words from the Alpereum website:
Calculated Hashrate takes the amount of valid shares your miner has submitted over a period of time and uses a formula to convert this into a readable hashrate. This number can fluctuate, sometimes being lower or higher than your actual miner's output hashrate in the console.
So in the end if you would average out your hashrate over a long sliding window (let's say 4h) you would probably have much better agreement between your miner's and the server sided hashrate.
Furhtermore, difficulty fluctuates greatly. Whattomine and other sites only provide you with an estimate which is usually far from the real-time rewards you might get.
Before you accuse a pool, inform yourself about the technology behind it instead of just questioning 2 numbers on your screen
Hope that helps.
Everyone considering to accuse pools to cheat should read this before. Sure there are bad pools out there but you should always double check your findings.
Oh trust me i'm a Software Engineer I understand fully. I've been watching these hashrates on 3 different pools for 24 hours each pool.
Every other pool even other pools on Suprnova the Hashrate fluctuates greatly above what my computer reports and then below and goes up and down.
Not with Signatum though. On all of the pools I get less than 50% of my hashrate that my computer reports after 24 hours on each pool (that's 6x as long as the 4 hours you are talking about)
For days my computers report 18MH/s per RX 480 yet on the server side of all these polls my rigs NEVER hit 36 MH/s for the 2 rigs that have 2 RX 480s in it
Same goes for my GTX 1060, reporting 13MH/s each and i'm only getting 13MH/s even tho there's 2 cards reporting 13MH/s.
I will fully accuse because the facts make no sense.
I go on ZCL Suprnova and anywhere else and it goes above what I have even fluctuating, but with Signatum only 50% to 75%? I've never seen such fluctuations so far below the Miner softwares and it NEVER hits 99MH/s at all. Its crazy because that's what my rigs report.
I have 6 cards 4 480's, 2 1060s, never had issues on any pool before trying to mine Signatum. As if people know you can't mine it in just a few days from now and are trying to take a 50% cut off people is what it seems like to me.
I mean anybody else with 480s and 1060s can tell you the same hashrates for Signatum yet after a day on 3 separate pools they all report less than 50%.
Oh hey now i'm getting 29MH/s somehow and it does it quite often on all 3 pools yet I have 6 graphics cards that push 13MH/s on 2 1060s, and 18MH/s on 4 480's.
It makes absolutely no sense at all.