$ cat /sysroot/.coreos-aleph-version.json 
{
    "osbuild-version": "99",
    "build": "38.20230322.1.0",
    "ref": "fedora/aarch64/coreos/next",
    "ref": "docker:///quay.io/fedora/fedora-coreos@sha256:abcdef", target_imgref
    "ostee-version": "38.20230322.1.0",
    "ostree-commit": "429535029cf16dacdbae67bbe5dac0c6160c1528fdad135c6e516beb01352230",
    "platform": "aws"
    "imgid": "fedora-coreos-38.20230322.1.0-metal.aarch64.raw"
    "container-image": {
        "image-name": "registry.gitlab.com/redhat/services/products/image-builder/ci/images/fedora-coreos:stable",
        "image-digest": "sha256:d6ae5e4566d4ddd937e135eb3400db9c78aa76310e7309e601fa8f570d817519",
        "image-labels": {
           "org.opencontainers.revision": "7b3ec77dbe68d4291f24fa4b1d8eccfb4fa58241",
           "org.opencontainers.source": "https://github.com/coreos/fedora-coreos-config",
           "org.opencontainers.version": "38.20231002.3.1" 
           ...
        }
    }
}

This doesn't appear to include the Image ID which may or may not be something we want to carry forward, but was something that was there in the past:

$ cat /sysroot/.coreos-aleph-version.json 
{
        "build": "38.20230322.1.0",
        "ref": "fedora/aarch64/coreos/next",
        "ostree-commit": "429535029cf16dacdbae67bbe5dac0c6160c1528fdad135c6e516beb01352230",
        "imgid": "fedora-coreos-38.20230322.1.0-metal.aarch64.raw"
}