A workaround which works currently could be

<verbatim>
$ curl > 71edacd95f.zip
</verbatim>

Fossil generally treats urls sanely and changes them slowly. It generally allows unique prefixes for artifacts: the browser url has a longer value for uuid but it turns out to be enough to replicate the shorter prefix that is available, for example in

<verbatim>
$ fossil finfo <filename>
</verbatim>

The to bind these conveniently should not be very hard.
Tags etc left as a Simple Exercise for the Reader.