{
  "schema": "greyforge.public.zjx.ghostlane.qualification-evidence.v1",
  "published_at": "2026-09-01",
  "verified_at": "2026-09-01",
  "experiment": {
    "name": "ZJX 1.24 GHOSTLANE",
    "release": "1.24",
    "codename": "GHOSTLANE",
    "parent": "ZJX 1.23 BLACKWIRE (v1.23)",
    "mechanism_class": "conditional one-pass fast path for one codec stage of solid storage, gated by a pure admission check against the existing resource governor",
    "unchanged": [
      "archive format",
      "decoder contract",
      "candidate universe",
      "candidate order",
      "compression levels",
      "memory ceiling",
      "spool ceiling",
      "pruning",
      "concurrency"
    ],
    "toolchain": "Zig 0.16.0 ReleaseSafe",
    "corpora": ["enwik8", "silesia"]
  },
  "disposition": {
    "final": "FAIL",
    "failed_gate": "R12",
    "failed_gate_description": "repository-authoritative full validation returned nonzero",
    "r13_status": "NOT_RUN_AFTER_R12_TERMINAL",
    "release_authorized": false,
    "release_preparation_authorized": false,
    "version_reusable": false,
    "current_release_line": "ZJX 1.23 BLACKWIRE"
  },
  "pack_starts": {
    "lifetime_ceiling": 20,
    "lifetime_consumed": 16,
    "attempt_1": { "starts": "1-8", "disposition": "INVALID" },
    "attempt_2": { "starts": "9-16", "disposition": "MATERIALITY_PASS" },
    "release_closeout": { "starts_authorized": "17-20", "starts_consumed": 0 }
  },
  "attempt_1": {
    "disposition": "INVALID",
    "reason": "all eight qualifying commands selected chunked storage; the solid-storage fast path was never executed",
    "paired_wins": 2,
    "paired_total": 4,
    "median_corpus_improvement_decimal": 0.0007936406188010091,
    "decision_eligible": false
  },
  "attempt_2": {
    "disposition": "MATERIALITY_PASS",
    "fast_path_observed": true,
    "thresholds": {
      "paired_wins_minimum": "3 of 4",
      "median_corpus_improvement_minimum": 0.03,
      "each_corpus_median_improvement": "> 0",
      "thresholds_changed": false
    },
    "performance": {
      "paired_wins": 4,
      "paired_total": 4,
      "median_corpus_improvement_decimal": 0.22353233127761238,
      "median_corpus_improvement_percent": "22.35%",
      "pass": true
    },
    "exactness": {
      "pairs": 4,
      "pairs_passed": 4,
      "checks": ["archive_identity", "archive_size_identity", "restore_identity", "trace_identity"]
    },
    "resources": {
      "peak_rss_non_regression": true,
      "no_full_bound_physical_preallocation": true,
      "pass": true
    },
    "focused_native_proof": { "passed": 40, "total": 40 },
    "gates": {
      "R1_to_R11": "PASS",
      "R12": "NOT_RUN_PENDING_SEPARATE_AUTHORIZATION",
      "R13": "NOT_RUN_PENDING_SEPARATE_AUTHORIZATION"
    }
  },
  "release_closeout": {
    "gates": {
      "R1_to_R11": "PASS",
      "R12": "FAIL",
      "R13": "NOT_RUN_AFTER_R12_TERMINAL"
    },
    "native_validation": {
      "build_steps_succeeded": 8,
      "build_steps_total": 8,
      "tests_passed": 39,
      "tests_total": 40,
      "tests_skipped": 1,
      "format_clean": true
    },
    "laboratory_validation": {
      "tests_run": 232,
      "failures": 2,
      "errors": 7,
      "skipped": 20,
      "exit_nonzero": true
    },
    "terminal_cases": {
      "total": 9,
      "in_ghostlane_code_path": 0,
      "root_cause_status": "SUSPECTED",
      "classes": [
        { "class": "external comparator tools not discoverable on laboratory image", "cases": 3 },
        { "class": "baseline acquisition assumed a Git repository checkout", "cases": 2 },
        { "class": "fixtures referenced a historical build-output filename", "cases": 3 },
        { "class": "host-bound absolute path to a retained trace", "cases": 1 }
      ]
    }
  },
  "missing_artifacts": [
    {
      "item": "standalone GHOSTLANE failure bundle named by an archival registry",
      "status": "NOT_FOUND",
      "handling": "recorded as missing; no replacement generated"
    }
  ],
  "claim_limits": [
    "Measurements are bounded to the frozen laboratory host, two public corpora, authorized commands, and frozen thresholds.",
    "The result belongs to an unreleased candidate and does not describe ZJX 1.23 BLACKWIRE or later releases.",
    "Root causes of the nine terminal cases remain SUSPECTED, not PROVEN.",
    "Repository identity, object identifiers, host paths, binary digests, internal function and fixture names, and raw traces are excluded."
  ],
  "links": {
    "chronicle": "https://greyforge.tech/chronicles/zjx-1-24-ghostlane",
    "source_note": "https://greyforge.tech/research/zjx-1-24-ghostlane-source-note-2026-09-01.md",
    "current_release_chronicle": "https://greyforge.tech/chronicles/zjx-1-23-blackwire",
    "product": "https://greyforge.tech/products/zjx"
  }
}