5:46p EST
   bafk2bzacebi57tmw5oop5tk6uzqlgcgoenrl7r45eiagvgjr2u55ct3lxldek is a
   file containing lines of "hello world".  Deals for storing it are
   pending with f0410001 and f0167254 .  It will take a day or two for
   them to complete.
   5:48p EST.  I may have written 5:46 maybe not unsure.
   The miners I tried store files for a maximum of 539 days, which is a
   little sad.
   I think that content can be retrieved by anyone, not just the uploader.