Over the past few days, BTC was clearly ignited by concerns over the dollar.
I don't thing that the dollar had nothing to do with the price movement. Is there anyone that really thought that the dollar might crash or something? It was the chinese that made the price explode...
The good thing about bitcoin is that it is digital. Yet there are more and more people selling physical bitcoins... I mean i can understand that they are nice for a collection or something but still...
What I want to know is: Is this a good idea and Can someone exploit this in any way?[/b]
Terrible idea. I can find out my TXID before I send it to you, generate lots of transactions, only keep the ones with TXID last digit even and win every time.
This. Players will broadcast only winning txids and discard everything else...