Just saw "Getting started" section of pool's page:
JackpotCoin Getting Started Guide
stratum+tcp://jpc.minep.it:3366
...
This pool uses the SHA-3 algorithm
...
cgminer --keccak -o stratum+tcp://jpc.minep.it:3366 -u username.keccakworker -p x
And this is wrong info - JHA is not the same as Keccak or Sha-3!
But later we can see:
ccminer.exe --algo=jackpot -o stratum+tcp://jpc.minep.it:3366 -u username.anything -p x
So for nvidia user info is correct

Sorry for that the ccminer code is my own but i am not an admin on the site just a loyal user
Please correct information, because new users with amd cards will begin to post incorrect shares...