A "black market" of confidential information intended to create a new generation of whistleblowers, such as Edward Snowdon, is intended to be the Darkleaks.
The service in question, as reported in a New Scientist article, is available for download online as a free software package, and its source code has been published online via Github. Users can upload one archive with a description that can be viewed by potential buyers browsing the marketplace - an activity that takes place within the software itself.
As noted in the publication, Darkleaks will not be limited to "significant" leaks, but will likely also deal with cases such as leakage of celebrity photos in August. However, its creators claim that it is mainly aimed at those who want to get out "trade secrets", "military information", "evidence of tax evasion", etc.
At the same time, they assure that the transactions will remain anonymous, as, according to a relevant blogpost, there is no identity, central manager and direct interaction between seller and buyer. The documents are "broken" into pieces, encrypted and inserted into the bitcoin's block chain - the "currency" payment record. Small pieces will be visible to aspiring buyers to decide if a purchase is worth it. When the decision is made, and the seller binds its bitcoins, it opens a "key" that allows the buyer to decipher the document.
Source: naftemporiki.gr