wget https://4dn-open-data-public.s3.amazonaws.com/fourfront-webprod/files/a886697c-8706-49c4-b6c8-75ef6bfc91cc/4DNFIKAKT4SF.r3d
aws s3 cp s3://4dn-open-data-public/fourfront-webprod/files/a886697c-8706-49c4-b6c8-75ef6bfc91cc/4DNFIKAKT4SF.r3d Chr4C_Chr2A_23.r3d
test "c2eba2bf041c2d06f248571956080ca1" = "$(md5sum Chr4C_Chr2A_23.r3d)"
drs get -d https://data.4dnucleome.org 4DNFIKAKT4SF