wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/d4b47bea-9a1b-4244-b835-2927503f0e5b/4DNFIABB3FHQ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/d4b47bea-9a1b-4244-b835-2927503f0e5b/4DNFIABB3FHQ.mcool 4DNFIABB3FHQ
test "7bc9e036c9b910196cd12f54e0f386fc" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIABB3FHQ