{
  "schema": "mainline-uart-observer-physical-public-v1",
  "source_revision": "11d49eb0f72d28c0f9cdc070fea4662410451c10",
  "evidence_class": "physical board serial runtime; separate limited private camera observation",
  "candidate_bundle": "/nix/store/16cpjjiifxgwyb6bndhi39vfmlvcdw6h-k230-mainline-uart-observer-boot-files",
  "candidate_system": "/nix/store/k1zjqdn4ks7b5dd7b3py6cavhf85g6j6-nixos-system-nixos-26.11.20260919.20b1ddd",
  "observer_artifact": {
    "base_bundle": "/nix/store/5yqilsfyj35jzrcqjjqilkr6sd47qlms-k230-mainline-drm-trial-boot-files",
    "base_dtb_sha256": "77010c33945caf1e7cdfdeec6bd17475ecc43c8bd692e9228d78e1040b8d72c8",
    "base_kernel": "/nix/store/9vdk79pa4pm38mlmbflkqh4i4sc9kha0-linux-riscv64-unknown-linux-gnu-7.3.0-rc5",
    "dtb_bootargs_only": true,
    "dtb_sha256": "9b1aa53c7110a036e61bbc9d4a1188f0103adae7560953d4a9818dfbc8a2e5cf",
    "helper": "/nix/store/7n4rdzx19xxk8r0n4h16gf9s8qsnq85k-k230-uart-observer-riscv64-unknown-linux-gnu-1/bin/k230-uart-observer",
    "helper_sha256": "7ad803aee258b11476f0d1f2e19dfb1e6b1b909510dab00c57b69f24469000a8",
    "helper_source_sha256": "e137753bf0f9decb763599df4b7c101fb276841310f1a2219d101b3ac244ee74",
    "init": "/nix/store/k1zjqdn4ks7b5dd7b3py6cavhf85g6j6-nixos-system-nixos-26.11.20260919.20b1ddd/init",
    "kernel": "/nix/store/9vdk79pa4pm38mlmbflkqh4i4sc9kha0-linux-riscv64-unknown-linux-gnu-7.3.0-rc5",
    "payload_max": 384,
    "protocol": "K230_UOBS_V1",
    "schema": "k230-uart-observer-artifact-v1",
    "system": "/nix/store/k1zjqdn4ks7b5dd7b3py6cavhf85g6j6-nixos-system-nixos-26.11.20260919.20b1ddd",
    "window_ms": 12000
  },
  "initrd_inspection": {
    "dropin_sha256": "cb805d9876f5423abb288bfcfebd207946f1c00c89d5d0576bbde0fb6d84a1e8",
    "helper_sha256": "7ad803aee258b11476f0d1f2e19dfb1e6b1b909510dab00c57b69f24469000a8",
    "initrd_sha256": "0db6cf799e4b4ee21275800da2390b18fdacd6a625e6202841df01491abdd9ec",
    "unit_sha256": "edc8fe166b94d3c9e76879662780679b6092944f88e9966a27a41f0aa2767a81"
  },
  "status": "recovery-required-unknown",
  "failure": "Invalid: no fresh protected normal return; operator recovery required",
  "diagnostic": {
    "failure": "autonomous return acknowledgement unknown after 60s",
    "normal_banner_observed": false,
    "normal_login_observed": false,
    "normal_prompt_observed": false,
    "observer_complete": false,
    "passed": false,
    "readiness_observed": false,
    "receipt_acknowledged": false,
    "receipt_attempted": false,
    "return_acknowledged": false,
    "spl_observed": false,
    "wire_bytes": 26648
  },
  "frames": [
    {
      "seq": 0,
      "stage": "ready",
      "bytes": 83,
      "payload_sha256": "0a78c0b6ff2cb56deacf8c0ea38af3fd6806cd1e940cd74eac8c8f626b83d686",
      "properties": {
        "guards": "1",
        "shell_pid": "71",
        "window_ms": "12000"
      }
    }
  ],
  "candidate_boot_issued": true,
  "persistent_boot_selection_changed": false,
  "raw_serial_log_bytes": 53905,
  "raw_serial_log_sha256": "7fefbf17759b9ea8accd808a3e6cb9fcdf92ad811cb730eba62118450ddd8427",
  "operator_reset_recovery": "verified-protected-normal-postflight",
  "usable_root_and_deliberate_touch": "UNVERIFIED",
  "sbi_dbcn_extension_banner_observed": true,
  "sbi_dbcn_banner_kernel_timestamp": "0.000000"
}