http://pastoxeodebw6dc5bq7kmuxheunuf54xcovzjwhg4cuh6a3rzj6mthqd.onion/about/license
It requires the operator of a network server to
provide the source code of the modified version running there to the
users of that server. Therefore, public use of a modified version, on
a publicly accessible server, gives the public access to the source
code of the modified version.