JSON blob 420b5438b9850f4ce2392704d3f226ea7dca26c65be85968795e3db850c80e6b

{
  "schemaVersion": 2,
  "mediaType": "application/vnd.oci.image.index.v1+json",
  "manifests": [
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:8219947758b00fd816a1868beb7f7517edf2b791fc73a9da4a90de1c8c16dd66",
      "size": 2006,
      "platform": {
        "architecture": "amd64",
        "os": "linux"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:3bba3a08ca11810cfc2cbacbf5c37eb439051feb0bc7b2f3ce84045d946edccc",
      "size": 565,
      "annotations": {
        "vnd.docker.reference.digest": "sha256:8219947758b00fd816a1868beb7f7517edf2b791fc73a9da4a90de1c8c16dd66",
        "vnd.docker.reference.type": "attestation-manifest"
      },
      "platform": {
        "architecture": "unknown",
        "os": "unknown"
      }
    }
  ]
}

Images, referring to this json: