Hey guys,

to be short and sweet, I'd like to start a coin that can have fast transaction validations. I'm talking just seconds if possible. The ultimate purpose for this would be for Brick&Mortar stores that would also act as a mid-point for coin-2-cash transactions. Participating customers would (of course) have to register within the same system for trade in the privatized network.

Here are my questions...

1. Are transactions times in proportion to the size of the entire Database?

1b. If a smaller privatized Coin was created, would it be possible for faster blockchain validations without the sacrifice of Security?

2. Many systems are decentralized, and therefore nobody controls it. To anyone's current knowledge has any developer implemented a "repossession" code to function much like banks or Paypal where fraudulent transactions can be dealt with at a higher level?

Before someone answers, my programming knowledge is not very good. I'd appreciate the abstract