wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/2d572562-97a8-471d-9447-725fcd0dd908/4DNFIQFJR1L4.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/2d572562-97a8-471d-9447-725fcd0dd908/4DNFIQFJR1L4.mcool 4DNFIQFJR1L4
test "566d042dfc1dc62774105671e0538483" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIQFJR1L4