No. The moment right now running gives the error:
# guix pull
Updating channel 'guix' from Git repository at '
https://git.savannah.gnu.org/git/guix.git'...
Building from this channel:
guix
https://git.savannah.gnu.org/git/guix.git ad8a4a6
substituting /gnu/store/9acqfn7g6nfgvcrzkq84dlc69ps8b2vg-git-2.19.2.tar.xz...
guix substitute: error: connect: Connection timed out
substitution of /gnu/store/9acqfn7g6nfgvcrzkq84dlc69ps8b2vg-git-2.19.2.tar.xz failed
guix pull: error: build failed: some substitutes for the outputs of derivation `/gnu/store/c1mzmfkmxcimgyq0322bx3044qi1llqi-git-2.19.2.tar.xz.drv' failed (usually happens due to networking issues); try `--fallback' to build derivation from source