I posted this about a month ago, but it's probably worthwhile to put it up again.


Proof of claims need to be filed with the bankruptcy court.  The address is

Office of the Clerk
United States Bankruptcy Court
Northern District of California
P.O. Box 7341
San Francisco, CA 94120-7341

You should include a cover letter stating the case name (Hashfast Technologies, LLC) and number (14-30725) and requesting that the Clerk file the claim.