>About Repbin:
   >Repbin is an encrypted pastebin for the command line that runs over
   Tor!
   >Repbin servers form a distributed network where nodes sync posts with
   >each other (like in Usenet or BBS/Fido systems). This makes Repbin
   >resilient and scalable. Repbin focuses on privacy (encrypted messages)
   >and anonymity (padding and repost chains). To limit spam and
   >denial-of-service attacks, Repbin uses the Hashcash proof-of-work
   >algorithm which is widely known from Bitcoin mining.
   >Learn more about Repbin here:
   >[1]https://github.com/repbin/repbin/blob/master/README.md
   Has anybody ever considered the idea of doing otherwise-useful CPU work
   with the power currently expended  by computing hashes in Bitcoin
   mining?  The most obvious application would be weather forecasting:  It
   could use a huge amount of computation, on a continuously ongoing
   basis, and is valuable to every nation on earth.  Whether it can be
   lasso'ed into a bitcoin-mining engine, I don't know.
                 Jim Bell

References

   1. https://github.com/repbin/repbin/blob/master/README.md