This is the info you are looking for:

Technical Specifications

    Scrypt proof-of-work algorithm
    60 second block time target
    ~21 billion total coins
    8000 coins per block, reduces by 0.5% each week starting 2/28/14
    Difficulty retarget every 1 block

I found it here:
https://github.com/virtacoin/VirtaCoinProject