This seems to have been ages and ages ago, but possibly the time just hasn't come yet.
Anyways, I remember this guy was a respected member of our community here, and said he had information of vital importance relating to either a market or an event that was allegedly about to occur. For security reasons, he was unable to post his findings at the time, but he encrypted his message using some one way hashing algorithm and asked people to post it as a comment, and that in x amount of time, he would post his findings and everybody could verify their authenticity by hashing it themselves.
Did he ever post those findings? Has it not been long enough yet? Does anybody else remember what I'm talking about?
The original thread..
The followup by /u/gwern.
The relevant part:
I don't know much about the episode (you can easily google Sheep Marketplace and Tomas Jirikovsky), but Sheep Marketplace shut down and people lost their bitcoins, it is believed by some that Tomas stole the bitcoins.
/u/Gwern does a fair bit of research into Dark Net Markets related stuff - he's 'in the know'. He keeps a site I read every so often, his Dark Net Markets thing is here - http://www.gwern.net/Silk%20Road.