This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/cr/16.0/images/bci/bci-busybox:16.0
  docker pull registry.opensuse.org/home/defolos/bci/cr/16.0/images/bci/bci-busybox:16.0-1.17

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.