wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/27bbfb40-0224-427c-be41-398b43d70c48/4DNFI9FVHJZQ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/27bbfb40-0224-427c-be41-398b43d70c48/4DNFI9FVHJZQ.mcool 4DNFI9FVHJZQ
test "fc6f3601fc82b8006432fea4c8e513ee" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFI9FVHJZQ