wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/860888b5-ed45-44df-8695-009bd59448d2/4DNFI6SJZVXZ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/860888b5-ed45-44df-8695-009bd59448d2/4DNFI6SJZVXZ.mcool 4DNFI6SJZVXZ
test "666d047629887e28eec64e085309f031" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFI6SJZVXZ