wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/9decafb6-1202-4737-8272-f4bc593afcd5/4DNFI98F2HPJ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/9decafb6-1202-4737-8272-f4bc593afcd5/4DNFI98F2HPJ.mcool 4DNFI98F2HPJ
test "9473b4d3f432dff4ce55d39f3de66cfe" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFI98F2HPJ