wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/ff9500df-d5da-44ca-80a4-6677d3c664c7/4DNFIVWMRIUU.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/ff9500df-d5da-44ca-80a4-6677d3c664c7/4DNFIVWMRIUU.flex 006008040.flex
test "c75fc510a58b81830d380b74c2028381" = "$(md5sum 006008040.flex)"
drs get -d https://data.4dnucleome.org 4DNFIVWMRIUU