wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/ba534e0d-8104-4355-8837-4a56311b3fdc/4DNFIFRJ54GZ.flex
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/ba534e0d-8104-4355-8837-4a56311b3fdc/4DNFIFRJ54GZ.flex 005008004.flex
test "2b0b996a7ead534826c752ad059ff44d" = "$(md5sum 005008004.flex)"
drs get -d https://data.4dnucleome.org 4DNFIFRJ54GZ