This container can be pulled via:
  docker pull registry.opensuse.org/home/pushman/bci/cr/16.0/containerfile/suse/cosign:3
  docker pull registry.opensuse.org/home/pushman/bci/cr/16.0/containerfile/suse/cosign:3.0
  docker pull registry.opensuse.org/home/pushman/bci/cr/16.0/containerfile/suse/cosign:3.0.5
  docker pull registry.opensuse.org/home/pushman/bci/cr/16.0/containerfile/suse/cosign:3.0.5-2.2

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.