News for hackers. Stuff that matters.
Re:Ask HN: Where are the 750k Bitcoins lost by Mt. Gox? by kordless on Friday February 28, 2014 @11:12AM (#7319582)
Eventually all addresses will contain coin from all other addresses, if they are spent. It's the Kevin Bacon rating for currency.

In the short term, referencing Blockchain transaction over a given period of time, a destination address could be assigned a lower karma value for having a relationship with a bad actor address. The karma could be measured in amounts taken from other bad karma addresses.

While your wallet may contain trace amounts of bad karma money, it eventually gets diluted over time. Maybe we could utilize a days destroyed karma as well.

Re:Ask HN: Where are the 750k Bitcoins lost by Mt. Gox? by loceng on Friday February 28, 2014 @03:59PM (#7321460)
"Bad coin" diluted into legitimate users just means the people who were thieves got away with spending the money. That's bad.