Thread:BunsenH/@comment-28858167-20170804165504/@comment-27661991-20170804191514

If you wanted to get fancy, you could reference something like the Bitcoin blockchain. You'd all (or whoever manages it would) have to agree that somebody's next roll (or whatever) would be at some time in the future. Say I mentioned 3:10pm EST. Then at that time in the future, check the latest block (theoretically possible it gets overridden by another block, but going back averages 10 minutes per block... an altcoin's blockchain may be more appropriate), in this case block 479060. Then check a metric that is practically guaranteed to be random, like the Nonce value. For that block, it's "4290571445". Then just use its last digit as your 0-9 value. That way, nobody involved in the game actually choose the random number, nor can it be influenced in any way ( unless you had a huge chunk of the Bitcoin mining power, in which case you probably had better things to do ;) ). The only remaining variable would be the time being picked, so you'd either still have to trust whoever posts that to not just change the time after the fact (though that would be thwarted by the relatively slow process of blockchains), or you'd all have to agree on a set time interval.

But that might be getting far more technical than you and the other players would be comfortable with :D