This container can be pulled via:
  docker pull registry.opensuse.org/home/bit/branches/opensuse/templates/images/tumbleweed/containers/opensuse/example:6.4
  docker pull registry.opensuse.org/home/bit/branches/opensuse/templates/images/tumbleweed/containers/opensuse/example:6.4.1.1
  docker pull registry.opensuse.org/home/bit/branches/opensuse/templates/images/tumbleweed/containers/opensuse/example:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.