Question, can you ever lose your stake?
Or you never lose it?
Do you ever get interest? Or it operates the same way as a normal balance?
Advantages?
Basically the coins used in POS block generation are addressed back to you + a small mining reward .
For Example:
Inputs
Index Previous output Amount From address ScriptSig
0 b984ea7ee7...:1 269.5 P9q1FbSFX8ghMh8EZBk1eo7mjJLfWo7gwu 72:3045...4401
Outputs
Index Redeemed at input Amount To address ScriptPubKey
0 Not yet redeemed 0 Generation Block
1 Not yet redeemed 134.88 P9q1FbSFX8ghMh8EZBk1eo7mjJLfWo7gwu 33:03c7...f7e1 CHECKSIG
2 Not yet redeemed 134.88 P9q1FbSFX8ghMh8EZBk1eo7mjJLfWo7gwu 33:03c7...f7e1 CHECKSIG
269.5 coins were used by the miner as stake to create (Mine) this block.
269.76 coins will be returned to the miner when the block matures (Just like a POW Block) yielding a reward of 0.26 PPC.
No, you cannot lose any stake coins, the "Stake" in "Proof of Stake" refers to using a persons "stake" in the coin to secure the network rather then POW (calculating hashes against a target difficulty) alone.