wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/63ce185c-f634-42ca-8bc2-cf98b8cf066b/4DNFID63ZV7J.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/63ce185c-f634-42ca-8bc2-cf98b8cf066b/4DNFID63ZV7J.flex 005009004.flex
test "34ab29a87dcaf61e76b0be386ff11927" = "$(md5sum 005009004.flex)"
drs get -d https://data.4dnucleome.org 4DNFID63ZV7J