wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/99303d18-fea3-416a-a815-fb7e4dd7895b/4DNFIFO7M9E7.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/99303d18-fea3-416a-a815-fb7e4dd7895b/4DNFIFO7M9E7.r3d Chr4C_Chr2A_6.r3d
test "590c21216289f9f9962a0a1bea73fbc4" = "$(md5sum Chr4C_Chr2A_6.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIFO7M9E7