hi guys i got 2 questions:
1)
i stopped mining at mid of dec.
but on jan 11th i got a small payment.
but i didnt mine for approximately a month.
why did i get these coins?
The Eligius Pool tries to reward shares to their fair PPS value. However, since block creation (thus rewards) is a random process, the PPS value is only the "long-term average" value of a share. On a given day/week/month, the pool may find a little more or a little less blocks than the expected value.
If the pool finds less, then it can't pay all the shares. It therefore keeps those unpaid shares in a log, to be paid when the pool is more lucky, and finds more blocks than the average. (It pays most recent shares first)
When you stopped mining, you had a few unpaid shares left in the log. When the pool got lucky, it payed thoses shares to you.
According to your page, you have about 0.0036 BTC worth of unpaid shares left.
2)
some of my earlier payouts are market as "generated" in my bitcoin-qt wallet.
does that mean i earn the network fees produced by this coins? so does it make sense to throw them in the economy instead of holding in my wallet so they can produce fee for me? OR am i absolutely wrong? Please explain then.
Thanks
Unfortunately, you are absolutely wrong.
Each block contains many "normal" transactions, in which people send to other people coins. Coins you recieved from a "normal" transaction will appear as "recieved" in your wallet.
Furthermore, each block contains a special transaction, the generation transaction, which "creates" coins from nowhere. The amount that may be created by such generation transaction is currently equal to 25 BTC, plus whatever the total amount of coins that were "destroyed" in transaction fees in all the transactions included in that block. (Thus, an average block currently generates about 25.1 BTC)
Coins recieved from a generation transaction are marked "Generated" in your wallet. Apart from that, they have no special value or property whatsoever. They can be spent like any other recieved coin. (This is not completely true: coins recieved from a generation transaction may not be spent before 120 blocks (20 hours on average), wheras coins recieved from normal transactions may be spent after 6 blocks (1 hour))