Forgive my ignorance but can someone please explain why the reward appears to be slowly shrinking? I understood that the reward would reduce slightly as more hashing power came to the pool (more users creating more hashing power relative to me) But the reward is stilll slowly shrinking while the pool's overall hash rate also appears to be shrinking slightly? Last week it was something like 168K TH/S now its around 150K TH/S but the reward given yesterday (for my unchained hash rate is still slightly smaller).
Thanks in advance.
Look at the Pool->Graph to see what the pool hash rate is doing.
No need to guess or remember a sample
Yes the hash rate has decreased a bit, but the average over 5Nd has still gone up.
If the average hash rate increases, the reward per TH per block will decrease.
But the expected number of blocks per 'day' increases.
However, you can see on the rewards page itself, exactly what happens with each block we find:
The pool average hash rate over the 5Nd is "Pool N Avg"
the reward for that block is "Miner Reward"
and your average hash rate over the 5Nd is "Your N Avg"
However, 2 of those are calculations, so you are actually better to look at the numbers used:
The pool diff over the 5Nd is "N Diff"
the reward for that block is "Miner Reward"
and your diff over the 5Nd is "Your N Diff"
Your fraction of the "Miner Reward" is "Your N Diff"/"N Diff"
Thus your reward is affected by those 2.
So if "Your N Diff"/"N Diff" goes up, you expect to get more per block.
If "Miner Reward" goes up, you expect to get more per block.
but since it depends on all 3 numbers, then the overall result can be up or down depending on which changes the most.
"N Diff" doesn't change much per diff change (random based on where 5Nd hits the starting shift)
It 'usually' goes up each diff change - each 2016 blocks - approx every 2 weeks.
"Your N Diff" will go down if the pool average hash rate over 5Nd goes up - since that means it took less time to get to 5Nd so you had less time to submit shares, so you will have submitted less Diff over the 5Nd.
Edit: I forgot to mention
"N Range" is the time used in the calculations.
e.g. "Pool N Avg" = "N Diff" / "N Range"
"Your N Avg" = "Your N Diff" / "N Range"