wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/22647cb5-ee23-4f78-83a1-d9c6022cc3cd/4DNFIRO3DQCO.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/22647cb5-ee23-4f78-83a1-d9c6022cc3cd/4DNFIRO3DQCO.mcool 4DNFIRO3DQCO
test "aa2012a260efcd1d8072e6e3f5c61288" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIRO3DQCO