src/sys/pkg/bin/amber/keys/root.json

{
    "encrypted": false,
    "data": [
        {
            "keytype": "ed25519",
            "scheme": "ed25519",
            "keyid_hash_algorithms": ["sha256"],
            "keyval": {
                "public": "be0b983f7396da675c40c6b93e47fced7c1e9ea8a32a1fe952ba8f519760b307",
                "private": "5079a19105a5b262f89284c33c20487a96df7cd8d92b4a09dd269c71b53fea62be0b983f7396da675c40c6b93e47fced7c1e9ea8a32a1fe952ba8f519760b307"
            }
        }
    ]
}