Having heard the community's concerns about block hashes being prone to manipulation, we have decided not to use block hashes to resolve bets. Rather, we will be using New York Lottery Quick Draw numbers to resolve bets.

New York Lottery Quick Draw

Quick Draw numbers are drawn every four minutes, every day of the week. The numbers are published online shortly after they are drawn. The drawing selects 20 numbers randomly from a pool of numbers 1 through 80, without replacement. In the newest version of the Chancecoin protocol, a bet seen in the blockchain will be resolved with the next available set of Quick Draw numbers. We use combinadics to convert these numbers to a random uniform variable, and use it to resolve the bet.

We have more updates coming this weekend.