wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/067783cd-e05d-4d65-afeb-2f18a2ee7624/4DNFIBQWCEMM.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/067783cd-e05d-4d65-afeb-2f18a2ee7624/4DNFIBQWCEMM.mcool 4DNFIBQWCEMM
test "5cac87b9b04b5f6f2cfd56b407563161" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIBQWCEMM