This CA is solely under control of Sergey Matveev. To use it with Go packages:
$ [fetch|wget] http://www.ca.cypherpunks.ru/cert.pem
$ [fetch|wget] http://www.ca.cypherpunks.ru/cert.pem.asc
$ gpg --auto-key-locate dane --locate-keys stargrave at stargrave dot org
$ gpg --auto-key-locate  wkd --locate-keys stargrave at gnupg dot net
$ gpg --verify cert.pem.asc
$ export SSL_CERT_FILE=`pwd`/cert.pem GIT_SSL_CAINFO=`pwd`/cert.pem