{
  "subject_digest": "sha256:112233",
  "predicates": {
    "stellaops.vex.chunk.meta.v1": {
      "tenant": "acme",
      "source": "ghsa",
      "schema": "stellaops.vex.chunk.v1",
      "item_count": 1
    },
    "stellaops.vex.chunk.integrity.v1": {
      "items": [
        {"ordinal": 0, "sha256": "abc"}
      ]
    }
  },
  "signing_profile": "sovereign-default",
  "transparency": null
}