wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/wfoutput/e9b77485-971c-44ce-8e4e-09a0ddce9dd5/4DNFISBF7WSJ.mcool
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/wfoutput/e9b77485-971c-44ce-8e4e-09a0ddce9dd5/4DNFISBF7WSJ.mcool 4DNFISBF7WSJ
test "bce18859a5c6f4a3d44faca9fe857a0a" = "$(md5sum undefined)"
drs get -d https://data.4dnucleome.org 4DNFISBF7WSJ