[PPC] How does POS work to confirm transaction if POW miner are all gone?

[hl5460]

Hi Guys,
I noticed that there is a sudden increase of PPC dif from ~400k on 2nd July to 660k as of now. a 60% rise in just a few days.
I went through the design paper of PPC and I have to admit that I couldn't understand them all.

It's claimed that PPC network will maintain its integrity even POW goes down to zero. Such unique feature render PPC the first long-term energy efficient currency.

"Energy Efficiency
 
When the proof-of-work mint rate approaches zero, there is less and less incentive to
mint proof-of-work blocks. Under this long term scenario energy consumption in the
network may drop to very low levels as disinterested miners stop mining proof-of-work
blocks. The Bitcoin network faces such risk unless transaction volume/fee rises to high
enough levels to sustain the energy consumption. Under our design even if energy
consumption approaches zero the network is still protected by proof-of-stake. We call a
crypto-currency  long-term energy-efficient  if energy consumption on proof-of-work is
allowed to approach zero. "
 --from design paper of PPC


As far as I understand, POW worker must use cgminer or something to do the POW work to confirm transactions.
POS only works when one launch the PPC client.
My question is:
How does POS confirm transactions if the network doesn't have  a single POW worker?


Maybe I took it wrong. So enlighten me!

[TheSeven]

In PPC, PoW and PoS are mostly independent, except for serving the same purpose (to confirm transactions).

If you look at http://theseven.bounceme.net/~theseven/pool/netstats, you see the dots in the two charts. Each dot is a block.
You can see that there is some amount of both, with the vast majority being PoS blocks these days. Both kinds confirm transactions.
If there wouldn't be any PoW blocks, nothing much would happen except for the upper chart being a flat line without any dots.

[hl5460]

In PPC, PoW and PoS are mostly independent, except for serving the same purpose (to confirm transactions).

If you look at http://theseven.bounceme.net/~theseven/pool/netstats, you see the dots in the two charts. Each dot is a block.
You can see that there is some amount of both, with the vast majority being PoS blocks these days. Both kinds confirm transactions.
If there wouldn't be any PoW blocks, nothing much would happen except for the upper chart being a flat line without any dots.

Thanks, that's the first time I saw POS block. Interesting...