wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/7f0456ad-4ef6-4302-b3c3-8d8f7160c035/4DNFIWSPOUOW.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/7f0456ad-4ef6-4302-b3c3-8d8f7160c035/4DNFIWSPOUOW.mcool 4DNFIWSPOUOW
test "dc9adb98cfa78a2ca94149c43563d1b6" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIWSPOUOW