http://hiddenwwiqg2jb5s3wyvzxeipcl5ese2pa2cqnu6myi3d5bcmhmdagqd.onion/index.php/Special:Version/License/Vector
You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.