wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/66b6e420-8bb2-4b1a-bae6-6f8bd12e854f/4DNFIHFX73VQ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/66b6e420-8bb2-4b1a-bae6-6f8bd12e854f/4DNFIHFX73VQ.mcool 4DNFIHFX73VQ
test "194ddfb32cae2be7f3ceb967051994d6" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFIHFX73VQ