Does the PoS interest I earn depends on my wallet weight?
the PoS % will always be -more or less- 20%/year.
to "win" the PoS Block, you need to have a good staking weight that is gained from :
1.coin-age (the more age your blocks of coins is, the more weight you will gain)
2.participation (the more often your wallet is open and participating in the network health, the more chances you will get to "win" the PoS Block)
true : someone that keep his wallet open 24/7 all year long could get in total a little more than 20% interest yearly.
same as for someone that doesn't open his wallet often, like few hours every 5-6 days, will most probably get a little below 20%
you need to keep in mind that for XST, the PoS settings are : Coin PoS age: Min. 3 days Max. 9 days coins stop aging at 15 days
your coins need to be confirmed on your wallet for a minimum of 3 days, then your Staking icon at the bottom right will turn on.
it's not automatic that you will start to get stakes right after 3 days, because it all depends on your wallet staking weight compared to the network weight/health..... and no need to say that XST network is very healthy
hope that helps
And what does network weight mean?
If the network staking difficulty is constantly high, I won`t earn annual 20% ?
here's some complement of information :
(excerpted from :
https://stealthcointalk.com/viewtopic.php?p=85&sid=8b69590fe1c447499ec31cbf625fc656#p85)
Can someone please explain exactly what this means Coin PoS age: Min. 3 days Max. 9 days coins stop aging at 15 days?
I understand the more coins we have, the more staking power we have,
but not sure how the max 9 days, 15 days etc. come into it.
Coin (input) is eligible to stake 3 days after the transaction that put it in your wallet.
Every second it gets a better and better chance to mint as it gets older.
But at 9 days after sitting in your wallet, the chances get no better.
Every second your coin will earn more and more interest once it mints.
But at 15 days, the potential earnings are capped. That means you can't open your wallet after 365 days and earn 20% interest.
The most interest you will earn on an input is 0.822% (20% * 15 365).
So if you open your wallet every six months to stake, you'll earn just over 1.65% interest (1.00822 * 1.00822).
If you open it every 3 months you'll earn about 3.3% interest.
If you open it every 45 days, you'll earn about 6.7% interest.
If you open it every 22.5 days, you'll earn about 14% interest.
More frequently than that, you'll approach compounding to nearly 22% (based on a nominal APR of 20%).
The last calculation goes like this:
(1 + (0.20 * 3 365.0))**(365.0/3) - 1
More info about "Stake Weight" :
The more coins you have and the longer you hold them, the stronger your 'Stake Weight' grows as you compete with others on the network to sign transactions in POS blocks.
The longer you hold coins, and the more coins you stake, the bigger chance of hitting the minimum than somebody with fewer coins or somebody who obtained their coins recently.
When you successfully 'stake' a block, the coins you stake are 'spent' back to yourself and you earn a reward for 'winning' (signing) the block. The age of the coins you staked resets to zero because you spent the old coins and received new ones. You start again with very low staking weight to try to win the next block.
As time passes (minimum-age = 3days), your stake weight grows again, but in the meantime others get a chance to win stake blocks, and thus the power to sign blocks passes around the network, but always biased towards the people who have been holding more coins for long periods of time.
The problem you could see is that someone with a huge proportion of the total XST coins can have such a strong stake-weight that his weight could growth much faster than the average Joe on the network. He will sign a large number of blocks, driving up the network staking difficulty and potentially get to a position where he will always be the one staking... But there is a mechanism that prevent this and that is built into PoS coins : it is called "block-splitting". When someone stake (sign a PoS block), the coins that staked and the rewards is divided in two : each with about half the staking 'power' as the block that just staked. So this mechanism gives other people staking XST a better chance to sign a future PoS block.
