wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/fa615949-04da-415a-8ea2-960646e8813d/4DNFIYOEGHHV.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/fa615949-04da-415a-8ea2-960646e8813d/4DNFIYOEGHHV.mcool 4DNFIYOEGHHV
test "640d7fdaa3fb5e41b198947609ca22c3" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIYOEGHHV