wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/a8ce3265-1ae5-4d38-a9ec-d3172ddc4a6a/4DNFIL76YMY6.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/a8ce3265-1ae5-4d38-a9ec-d3172ddc4a6a/4DNFIL76YMY6.mcool 4DNFIL76YMY6
test "2a126bda752d6b2a72d68313abd3b57c" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIL76YMY6