wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/e141bfe6-7083-4f0c-96ca-0aad84c2c4c6/4DNFIQ9YVI1L.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/e141bfe6-7083-4f0c-96ca-0aad84c2c4c6/4DNFIQ9YVI1L.r3d Chr4C_SC35_40.r3d
test "4504089b87fec21c5cf4a61e725e7a2b" = "$(md5sum Chr4C_SC35_40.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIQ9YVI1L