Quote from: coinft on June 16, 2014, 12:10:50 AM

Quote from: DrG on June 16, 2014, 12:02:42 AM

Quote from: coinft on June 15, 2014, 11:41:19 PM

Quote from: DrG on June 15, 2014, 10:44:35 PM

I think Pool ops need to add to the User Agreement that users found to be selfish mining forfeit any non-dispersed mining funds and are contractually obligated to return their ill-gotten gains. Most other users would support this.

The problem is how can you prove it statistically except for looking at massive deviations (like 6 magnitudes off).

I am not totally sure how mining works now, but couldn't a pool spot check miners by giving them work known to contain a valid block solution every now and then? I'd be easy to get evidence this way.

Basically have the pool send work that only needed difficulty 1 to solve? I guess that could work, but I'm not well versed on the inner workings of nonces and all the stuff... need one of those brainiacs to post on that Tongue

I was thinking send it the same work description which another miner already solved and reported a block on.

If this were done, you'd have to limit it to only miners of a certain size seeing as miner with my hashing power, a mere 85 gh/s, would probably have difficulty solving a current block in a reasonable amount of time to prove my software/hardware was working correctly. Yes, I understand I might get lucky and solve block, but that would definitely be a something that could reasonably be predicted as to when. Right now I'm showing a best share as 12.8M. The other thing this would beg to question, is wouldn't this hash power be put to better work hashing on good work. Seems like looking for statistical anomalies and watching them more closely, or auditing their work would be a better way to handle this.