wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/6fd405fe-0795-4345-ac6e-e26017378614/4DNFIUVXHNNB.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/6fd405fe-0795-4345-ac6e-e26017378614/4DNFIUVXHNNB.mcool 4DNFIUVXHNNB
test "229402a53414a7ffb4b606c34b9408f5" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIUVXHNNB