diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f0c6e5b..90f01574 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # 印度占星 Skill 更新日志
 
+## 2026-10-29 — D60 分盘的星座算法改对
+
+- 落在金牛、巨蟹、处女、天蝎、摩羯、双鱼上的行星或上升，D60 星座改为从本星座起算（以前多移一个星座）；同一张盘的 D60 星座可能与以前不同。
+- 与外部参照（PyJHora）在 77 例已知出生时间上 77/77 一致；以前只有 33/77。
+- 生时校正 20 条密封案例与 900 个报时窗口，名次与分钟误差与上一份回放逐条相同。
+- Skill 版本不变（BUG-1500，issue #149）。
+
 ## 2026-10-29 — 咨询首字前少等最多 3 秒
 
 - 判断「是不是寒暄」改为和扣点、记下问题同时进行，不再排在它们后面；真问题首字前最多快约 3 秒。
diff --git a/docs/BUG_HISTORY.md b/docs/BUG_HISTORY.md
index dced180e..703a46d6 100644
--- a/docs/BUG_HISTORY.md
+++ b/docs/BUG_HISTORY.md
@@ -14081,7 +14081,7 @@
 - 防复发：待定。改闸门时，同时用同年、跨年、列表错位三类虚构配对做回归。
 - 相关记录：BUG-689、BUG-740、BUG-1047；ERR-110。
 - 复发自：无。
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1049 | 生时校正开场没有例子、满是行话，用户不知道该答什么
 
@@ -18773,7 +18773,7 @@
 - 防复发：在这项真正交付之前，不得把「少数一侧不足两成仍不出题」写成已经生效。
 - 相关记录：BUG-1367。
 - 复发自：无。
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1369 | 进入交付区间仍要落后峰值 8 分
 
@@ -18788,7 +18788,7 @@
 - 防复发：不得只改写盘或只改读盘。不得用修改 `MIN_SEPARATION_LEAD` 来收窄区间。
 - 相关记录：BUG-423、BUG-560、BUG-1367。
 - 复发自：无。
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1392 | 分段显示用取整分数，还会跳过缺区间的活候选
 
@@ -19174,7 +19174,7 @@
 - 防复发：以后要固定顺序时，遍历前排序，并加不依赖哈希种子的回归。不要在本条未修之前把中文逐字节对比做成不设种子的门禁。
 - 相关记录：BUG-1413。issue #89 修复单顺手记下。
 - 复发自：无。
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1416 | 中文完整数据附录由英文回译，Dosha 丢否定，友敌矩阵空表
 
@@ -19931,7 +19931,7 @@
 - 防复发：待修复单补测试（与 Swiss Ephemeris 日出对比，误差 ≤ 2 分钟）。
 - 相关记录：issue #114。
 - 复发自：无
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1463 | 单独调 `/api/shadbala` 带出生资料时 500
 
@@ -19947,7 +19947,7 @@
 - 防复发：待修复单补接口测试。
 - 相关记录：issue #114。
 - 复发自：无
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
 ## BUG-1464 | 存过别人的账户进首页即「页面出错了」
 
@@ -20466,13 +20466,12 @@
 ## BUG-1497 | D60 换格能不能帮生时校正，从没在已知出生时间的人身上测过
 
 - 状态：investigating
-- 首次发现 / 最近更新：2026-10-28 / 2026-10-28（issue #149，来源 #142 竞品宣传）
+- 首次发现 / 最近更新：2026-10-28 / 2026-10-29（issue #149，来源 #142 竞品宣传）
 - 影响面：生时校正的技法路由与对外文案。`skills/jyotish-birth-time-rectification/references/technique-routing.md` 现在写「D60 只作参考，不驱动结论」。
 - 现象：竞品宣传「证据够密时 D60 与纳迪分盘反向校准，收束时刻可以到秒」。纳迪那一半已在 BUG-1240 证伪（N3 ±10 窗口找回记录分钟 5/77，生产 25/77；N4 只换岁差 73/73 换段）；D60 这一半从未在 v5 77 例已知出生时间上检验。
 - 触发条件：用 D60 换格给候选分段打分，或对外宣称「到秒」。
 - 根因：未验证的技法被当成能力宣传；我方没有 D60 换格的评分实现，也没有对照实验。
-- 修复：（进行中）G1 已跑：生产 D60 上升与 PyJHora 只一致 33/77（42.9%），本仓 `mode='vedastro'` 的 D60 与 PyJHora 77/77。
-  失败原因是本仓生产 D60 映射本身（见 BUG-1500），不是「D60 没有信号」；G2–G5 暂缓，先把映射口径定下来再重跑 G1。结论出来前生产代码、技法路由、对外文案都不动。
+- 修复：（进行中）G1 第一次跑出 33/77，原因在生产 D60 映射（BUG-1500）。映射改对后重跑 G1：77/77 通过（`docs/research/d60_two_way_results_2026_10_29.json`，脚本 `scripts/research/d60_two_way_run.py`）。下一步按任务书先登记 G2–G5 的口径（换格题只认同日事件），再跑五门、安慰剂、端到端与 MEVG。结论出来前技法路由、对外文案都不动。
 - 验证：待研究单 `docs/tasks/TASK-rectification-d60-two-way-20261028.md` 的 G1–G5 全部有结论后回填；不过门就写 `closed_by_design` 并附对外口径。
 - 防复发：研究单写死「先登记再跑、真值不可见、必须有安慰剂、负结果照写」。
 - 关联：BUG-1240、BUG-560、BUG-1090、BUG-1091。
@@ -20512,16 +20511,16 @@
 
 ## BUG-1500 | 生产 D60 映射把 1-based 偶数星座整体后移一个星座
 
-- 状态：investigating
+- 状态：resolved（代码 + 回归测试；待部署）
 - 首次发现 / 最近更新：2026-10-28 / 2026-10-28（issue #149，G1 三引擎对账）
 - 影响面：`scripts/varga.py::varga_map` 的 D60 分支（生产默认 `classical_local` 模式）。技法路由目前写「D60 只作参考」，不进校正打分。
 - 现象：v5 的 77 例已知出生时间里，生产 D60 上升星座与 PyJHora（traditional Parasara，from sign）只一致 33 例；其余 44 例全部差 +1 个星座，且 44 例全是 1-based 偶数星座（金牛、巨蟹、处女、天蝎、摩羯、双鱼）。本仓 `mode='vedastro'` 的 D60 映射与 PyJHora 77/77 一致。
 - 触发条件：读取生产 D60（`calc_varga(lon, 60)` 默认模式）。
 - 根因：`varga_map` 的 D60 分支是 `(si+pi)%12 if o else (si+1+pi)%12`（`o` 为 1-based 奇数星座），对 1-based 偶数星座加 1；同文件 vedastro 映射是 `(si+pi)%12`。两套内部映射不一致，外部引擎与 vedastro 那套一致。哪一套符合来源尚未裁决，不预设 classical 就是错。
-- 修复：未修。研究单红线要求生产代码零改动；要先按经典来源（BPHS / Raman）确认偶数星座是否真的从下一星座起算，再决定改映射还是改文档。
-- 验证：`docs/research/d60_two_way_results_2026_10_28.json`（77 例逐条：上升经度、两套本仓 D60、PyJHora D60、是否一致）。
-- 防复发：给 D60 补一条映射测试，锁定与外部引擎一致的规则；classical 与 vedastro 两种模式要么一致，要么在注释里写明来源差异。
+- 修复：`varga_map` 的 D60 分支改为 `(si+pi)%12`，奇偶星座都从本星座起算，并加注释指向 `references/shodasavarga-complete-guide.md` 与 PyJHora 对账（BUG-1500）。vedastro 模式与其他分盘未动。
+- 验证：新增 `tests/test_d60_varga_mapping.py`（12 个星座 × 60 段逐段对 PyJHora；偶数星座第 1 段落在本星座）。G1 脚本 `scripts/research/d60_two_way_run.py` 重跑 77/77 一致（`docs/research/d60_two_way_results_2026_10_29.json`）。密封校正 20 条与报时窗口 900 条与 sync9b 记录逐条相同，按 ERR-110 重新冻结为 `d60_mapping_2026_10_29`。`tests/test_varga_bphs.py`、`tests/test_upstream_sync9b_varga_bphs.py`、`tests/test_deep_varga_avastha.py`、`tests/test_divisional_charts_extended.py`、`tests/test_cli_smoke.py` 通过；`tests/test_d1_d60_varga_mapping_registry.py` 依赖的 `python3` 在本机不存在，属环境缺口。
+- 防复发：`tests/test_d60_varga_mapping.py` 锁定「从本星座起算」；classical 与 vedastro 现在同一条规则，外部引擎对账留作回归。
 - 关联：BUG-1497。
 - 复发自：无。
-- 修复版本：未修。
+- 修复版本：分支 `codex/rectification-d60-two-way-20261028`。
 
diff --git a/docs/research/d60_two_way_results_2026_10_29.json b/docs/research/d60_two_way_results_2026_10_29.json
new file mode 100644
index 00000000..3d7edaf1
--- /dev/null
+++ b/docs/research/d60_two_way_results_2026_10_29.json
@@ -0,0 +1,565 @@
+{
+  "brief": "docs/tasks/TASK-rectification-d60-fix-20261029.md",
+  "bug": "BUG-1500",
+  "cases": [
+    {
+      "ascendant_longitude": 71.1909,
+      "case_id": "albert_brooks_1947_aa_v4_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 109.6959,
+      "case_id": "andrew_windsor_1960_aa_v4_holdout",
+      "d60_sign_idx_production": 6,
+      "d60_sign_idx_pyjhora": 6,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 96.8001,
+      "case_id": "angelina_jolie_1975_aa_v4_holdout",
+      "d60_sign_idx_production": 4,
+      "d60_sign_idx_pyjhora": 4,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 296.1798,
+      "case_id": "barack_obama_1961_aa_v4_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 107.0009,
+      "case_id": "bernd_eichinger_1949_aa_v4_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 269.6959,
+      "case_id": "chad_everett_1937_aa_v4_holdout",
+      "d60_sign_idx_production": 7,
+      "d60_sign_idx_pyjhora": 7,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 162.7012,
+      "case_id": "elizabeth_montgomery_1933_aa_v4_holdout",
+      "d60_sign_idx_production": 6,
+      "d60_sign_idx_pyjhora": 6,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 231.7983,
+      "case_id": "elizabeth_taylor_1932_aa_v4_holdout",
+      "d60_sign_idx_production": 2,
+      "d60_sign_idx_pyjhora": 2,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 216.2833,
+      "case_id": "iwao_takamoto_1925_aa_v4_holdout",
+      "d60_sign_idx_production": 7,
+      "d60_sign_idx_pyjhora": 7,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 149.6725,
+      "case_id": "john_robbins_1947_aa_v4_holdout",
+      "d60_sign_idx_production": 3,
+      "d60_sign_idx_pyjhora": 3,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 59.9029,
+      "case_id": "joseph_kennedy_iii_1980_aa_v4_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 151.3987,
+      "case_id": "kurt_cobain_1967_aa_v4_holdout",
+      "d60_sign_idx_production": 7,
+      "d60_sign_idx_pyjhora": 7,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 104.8722,
+      "case_id": "pablo_picasso_1881_aa_v4_holdout",
+      "d60_sign_idx_production": 8,
+      "d60_sign_idx_pyjhora": 8,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 218.6428,
+      "case_id": "paul_ryan_1970_aa_v4_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 145.4799,
+      "case_id": "salma_hayek_1966_aa_v4_holdout",
+      "d60_sign_idx_production": 6,
+      "d60_sign_idx_pyjhora": 6,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 113.2594,
+      "case_id": "sean_lennon_1975_aa_v4_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 199.7737,
+      "case_id": "sigmund_freud_1856_aa_v4_holdout",
+      "d60_sign_idx_production": 9,
+      "d60_sign_idx_pyjhora": 9,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 9.9031,
+      "case_id": "steve_reich_1936_aa_v4_holdout",
+      "d60_sign_idx_production": 7,
+      "d60_sign_idx_pyjhora": 7,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 152.3435,
+      "case_id": "tiger_woods_1975_aa_v4_holdout",
+      "d60_sign_idx_production": 9,
+      "d60_sign_idx_pyjhora": 9,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 135.3649,
+      "case_id": "tom_kennedy_1927_aa_v4_holdout",
+      "d60_sign_idx_production": 10,
+      "d60_sign_idx_pyjhora": 10,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 234.5927,
+      "case_id": "adriana_lima_1981_aa_v5_holdout",
+      "d60_sign_idx_production": 8,
+      "d60_sign_idx_pyjhora": 8,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 242.6992,
+      "case_id": "agatha_christie_1890_aa_v5_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 80.9181,
+      "case_id": "albert_einstein_1879_aa_v5_holdout",
+      "d60_sign_idx_production": 7,
+      "d60_sign_idx_pyjhora": 7,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 30.0607,
+      "case_id": "alberto_fujimori_1938_aa_v5_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 59.3382,
+      "case_id": "arthur_conan_doyle_1859_aa_v5_holdout",
+      "d60_sign_idx_production": 11,
+      "d60_sign_idx_pyjhora": 11,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 307.1967,
+      "case_id": "audrey_hepburn_1929_aa_v5_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 289.3969,
+      "case_id": "ayrton_senna_1960_aa_v5_holdout",
+      "d60_sign_idx_production": 11,
+      "d60_sign_idx_pyjhora": 11,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 346.7636,
+      "case_id": "barbra_streisand_1942_aa_v5_holdout",
+      "d60_sign_idx_production": 8,
+      "d60_sign_idx_pyjhora": 8,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 6.8595,
+      "case_id": "beyonce_1981_aa_v5_holdout",
+      "d60_sign_idx_production": 1,
+      "d60_sign_idx_pyjhora": 1,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 238.7367,
+      "case_id": "bob_dylan_1941_aa_v5_holdout",
+      "d60_sign_idx_production": 4,
+      "d60_sign_idx_pyjhora": 4,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 233.8797,
+      "case_id": "brigitte_bardot_1934_aa_v5_holdout",
+      "d60_sign_idx_production": 6,
+      "d60_sign_idx_pyjhora": 6,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 224.6155,
+      "case_id": "bruce_lee_1940_aa_v5_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 259.5116,
+      "case_id": "catherine_deneuve_1943_aa_v5_holdout",
+      "d60_sign_idx_production": 11,
+      "d60_sign_idx_pyjhora": 11,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 181.278,
+      "case_id": "charles_de_gaulle_1890_aa_v5_holdout",
+      "d60_sign_idx_production": 8,
+      "d60_sign_idx_pyjhora": 8,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 76.9514,
+      "case_id": "cher_1946_aa_v5_holdout",
+      "d60_sign_idx_production": 11,
+      "d60_sign_idx_pyjhora": 11,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 207.1468,
+      "case_id": "clint_eastwood_1930_aa_v5_holdout",
+      "d60_sign_idx_production": 0,
+      "d60_sign_idx_pyjhora": 0,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 292.2015,
+      "case_id": "daniel_barenboim_1942_aa_v5_holdout",
+      "d60_sign_idx_production": 5,
+      "d60_sign_idx_pyjhora": 5,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 290.6112,
+      "case_id": "diane_cilento_1932_aa_v5_holdout",
+      "d60_sign_idx_production": 2,
+      "d60_sign_idx_pyjhora": 2,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 181.5986,
+      "case_id": "dingdong_dantes_1980_aa_v5_holdout",
+      "d60_sign_idx_production": 9,
+      "d60_sign_idx_pyjhora": 9,
+      "matches_pyjhora": true
+    },
+    {
+      "ascendant_longitude": 128.3089,
+      "case_id": "donald_trump_1946_aa_v5_holdout",
+      "d60_sign_idx_production": 8,
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diff --git a/docs/research/reported_offset_d60_mapping_2026_10_29.freeze.json b/docs/research/reported_offset_d60_mapping_2026_10_29.freeze.json
new file mode 100644
index 00000000..929c6206
--- /dev/null
+++ b/docs/research/reported_offset_d60_mapping_2026_10_29.freeze.json
@@ -0,0 +1,118 @@
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diff --git a/docs/research/reported_offset_d60_mapping_2026_10_29.json b/docs/research/reported_offset_d60_mapping_2026_10_29.json
new file mode 100644
index 00000000..11724efb
--- /dev/null
+++ b/docs/research/reported_offset_d60_mapping_2026_10_29.json
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+}
diff --git a/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.freeze.json b/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.freeze.json
new file mode 100644
index 00000000..20b23a7c
--- /dev/null
+++ b/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.freeze.json
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diff --git a/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json b/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json
new file mode 100644
index 00000000..9894c752
--- /dev/null
+++ b/docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json
@@ -0,0 +1,1941 @@
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+        "insufficient_events",
+        "insufficient_domains",
+        "missing_mandatory_layers",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 10,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 1,
+      "opaque_true_rank": 8,
+      "minute_error": 5,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 11,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 6,
+      "opaque_true_rank": 17,
+      "minute_error": 5,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 12,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 1,
+      "opaque_true_rank": 4,
+      "minute_error": 5,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 13,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 5,
+      "opaque_true_rank": 7,
+      "minute_error": 10,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 14,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 17,
+      "opaque_true_rank": 19,
+      "minute_error": 10,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 15,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 1,
+      "opaque_true_rank": 7,
+      "minute_error": 9,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "missing_mandatory_layers",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "missing_mandatory_layers",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 16,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 13,
+      "opaque_true_rank": 13,
+      "minute_error": 10,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 17,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 6,
+      "opaque_true_rank": 6,
+      "minute_error": 6,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 18,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 12,
+      "opaque_true_rank": 15,
+      "minute_error": 10,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 19,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 1,
+      "opaque_true_rank": 6,
+      "minute_error": 4,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    },
+    {
+      "case_ordinal": 20,
+      "candidate_count": 21,
+      "event_count": 3,
+      "true_rank": 1,
+      "opaque_true_rank": 7,
+      "minute_error": 10,
+      "would_confirm": false,
+      "false_confirmation": false,
+      "insufficient_evidence_rejected": true,
+      "full_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ],
+      "sparse_trial_reasons": [
+        "unique_minute_not_found",
+        "insufficient_events",
+        "insufficient_domains",
+        "neighbor_stability_not_passed",
+        "leave_one_event_out_not_passed",
+        "top_candidate_feature_not_unique",
+        "fact_ranker_v4_holdout_not_ready"
+      ]
+    }
+  ],
+  "metrics": {
+    "top_1_rate": 0.5,
+    "top_3_rate": 0.5,
+    "mean_absolute_minute_error": 6.65,
+    "false_confirmation_rate": 0.0,
+    "correct_insufficient_evidence_rejection_rate": 1.0,
+    "confirmation_coverage_rate": 0.0
+  },
+  "metric_gates_passed": false,
+  "opaque_exact_top_1_rate": 0.0,
+  "opaque_exact_top_3_rate": 0.05,
+  "official_valid_independent_blind": false,
+  "official_blind_trial_count": 0,
+  "is_blind_evaluation": false,
+  "truth_hidden_from_ranker": true,
+  "results_previously_seen": true,
+  "verified_minute_claim_allowed": false,
+  "status": "blocked_independent_blind_evidence",
+  "boundary": "Three-event low-information protocol, not a mathematical accuracy lower bound and not representative of real sessions. Historical v3/v4 exposure cannot be undone by freezing today's scorer. No tuning or release claims."
+}
diff --git a/docs/tasks/PROGRESS-rectification-d60-two-way-20261028.md b/docs/tasks/PROGRESS-rectification-d60-two-way-20261028.md
index b84df2e5..e0fc6384 100644
--- a/docs/tasks/PROGRESS-rectification-d60-two-way-20261028.md
+++ b/docs/tasks/PROGRESS-rectification-d60-two-way-20261028.md
@@ -57,3 +57,22 @@ G2–G5、模型端到端对比、MEVG、报告：全部 `not_started`（G1 不
 
 - `jyotishganit` 未安装；G1 的外部引擎只剩 PyJHora（门要求「与至少一个外部引擎一致 ≥95%」，仍可判）。
 - 预检的 `focused_tests` 有一条与本单无关的失败（上面已列）。
+
+## 第 1 次修正：D60 映射（2026-10-29）
+
+按修复单 `docs/tasks/TASK-rectification-d60-fix-20261029.md` 与产品选择 1 执行。
+
+| 步 | 做了什么 | 结果 |
+| --- | --- | --- |
+| T0 | 合并最新 `origin/staging`（`68670b281`） | 只有 `docs/BUG_HISTORY.md` 冲突；按编号合并，保留 staging 的 BUG-1496 / 1498 / 1499 与本分支的 BUG-1497 / 1500 |
+| T1 | `scripts/varga.py` 的 D60 改为 `(si+pi)%12`（奇偶同规则），加来源注释 | 新增 `tests/test_d60_varga_mapping.py`：12 星座 × 60 段逐段对 PyJHora、偶数星座第 1 段在本星座，8 项全过 |
+| T3 | 查锁 D60 旧值的测试 | `tests/test_varga_bphs.py`、`test_upstream_sync9b_varga_bphs.py`、`test_deep_varga_avastha.py`、`test_divisional_charts_extended.py`、`test_cli_smoke.py` 均通过，没有写死旧 D60 星座的断言可改 |
+| T2 | 密封 20 + 报时 900 与 `upstream_sync9b_2026_10_28` 记录逐条比 | 20/20、900/900，8 字段与全字段不一致 0，`metrics` / `summary` 相同 → 按 ERR-110 重新冻结为 `d60_mapping_2026_10_29` |
+| T4 | 提交 G1 脚本并重跑 | `scripts/research/d60_two_way_run.py` 77/77，门通过；结果 `docs/research/d60_two_way_results_2026_10_29.json`（无时间戳、排序输出，可逐字节复跑） |
+| T6 | 记录 | BUG-1500 → resolved，BUG-1497 更新；CHANGELOG 一条；本文件 |
+
+跑过的测试：`tests/test_cli_smoke.py` 35 passed；分盘相关 96 passed、1 failed（`tests/test_d1_d60_varga_mapping_registry.py` 调 `python3`，本机只有 `python`，环境缺口，与本次改动无关）；`tests/test_d60_varga_mapping.py` 8 passed；`tests/test_d60_two_way_research.py` 1 passed。
+
+本轮没有跑：Python 快速门（留给验收）、前端（未改产品代码，但合同指针挪了，`rectification-confirmation-gate.test.ts` 的路径按前几轮先例改了）。
+
+下一步（T5）：按任务书 §3.3 的口径先写先登记 JSON（G2–G5 规则、阈值、种子），commit 之后再在 v5 上跑计分。
diff --git a/docs/tasks/README.md b/docs/tasks/README.md
index ea595fab..428e1037 100644
--- a/docs/tasks/README.md
+++ b/docs/tasks/README.md
@@ -37,7 +37,7 @@
 
 | 任务书 | 进度 | 主题 | 状态 | 落点 |
 | --- | --- | --- | --- | --- |
-| `TASK-rectification-d60-two-way-20261028.md` | `PROGRESS-rectification-d60-two-way-20261028.md`（执行方写） | **D60 换格要不要进生时校正：双向对比（issue #149）**：纳迪 / D150 已在 BUG-1240 证伪，本单只测 D60。A 组生产 V9、B 组加 D60 换格判据，同一批 v5 77 例看「有没有帮助」和「有没有伤害」；先登记再跑，G1 三引擎对账、G2 找回记录分钟、G3 不伤真值、G4 安慰剂、G5 换岁差噪声地板；另做 20 例模型参与的端到端对话对比（报告项）。离线研究、生产零改动。预留 BUG-1497 | 待领取 | 本地 Grok 执行 |
+| `TASK-rectification-d60-two-way-20261028.md` | `PROGRESS-rectification-d60-two-way-20261028.md`（执行方写） | **D60 换格要不要进生时校正：双向对比（issue #149）**：纳迪 / D150 已在 BUG-1240 证伪，本单只测 D60。A 组生产 V9、B 组加 D60 换格判据，同一批 v5 77 例看「有没有帮助」和「有没有伤害」；先登记再跑，G1 三引擎对账、G2 找回记录分钟、G3 不伤真值、G4 安慰剂、G5 换岁差噪声地板；另做 20 例模型参与的端到端对话对比（报告项）。离线研究、生产零改动。预留 BUG-1497 | 进行中：G1 首次 33/77 → 修 D60 映射（BUG-1500）后 77/77 通过；G2–G5 等先登记后再跑 | 本地 Grok 执行 |
 | `TASK-rectification-explicit-open-20261023.md` | `PROGRESS-rectification-explicit-open-20261023.md` | **明说要校正只回一句话（issue #103）**：找会话直接读一张对服务角色撤权的表、必然失败被吞（真正进行中的也续不上）；`candidate_accepted` 被算作进行中挡住入口和提议卡；兜底只给一句话。产品选 C；只改入口口径、经 RPC 找会话、删兜底，不改共享状态集合、不动表。BUG-1423 | 已合入 staging | 分支 `codex/rectification-explicit-open-20261023` |
 | `TASK-chart-table-span-20261023.md` | `PROGRESS-chart-table-span-20261023.md` | **星盘页本命 / 月亮行星表挤进左栏（issue #102）**：#87 给表包了 `ChartSymbolHelp` 后跨栏规则失配；根因修法是 `VedicLayout` 用固定整行容器承载表格，跨栏只认容器；加结构断言防复发。BUG-1422 | 已合入 staging | 分支 `codex/chart-table-span-20261023` |
 | `TASK-ui-kit-migration-20261023.md` | `PROGRESS-ui-kit-0-base-20261023.md`；`PROGRESS-ui-kit-1-shell-20261023.md`；`PROGRESS-ui-kit-2-chat-20261023.md`；`PROGRESS-ui-kit-3-chart-20261023.md`；`PROGRESS-ui-kit-4-people-20261023.md`；`PROGRESS-ui-kit-5-pages-20261023.md`；`PROGRESS-ui-kit-6-rectification-20261023.md`；`PROGRESS-ui-kit-7-cleanup-20261023.md` | **界面统一换成组件库**：shadcn base-nova（补 `shadcn/tailwind.css`）· Lucide · Motion · react-resizable-panels · dnd-kit · Zustand；lint 拦手写控件（白名单只减不增）；对话旁星盘面板；会话、档案拖动排序（动表）；长相不变。产品 2026-10-23 拍板 D1～D8；8 个 issue（K0～K7）串行，取代全站动效 #98 #100 #101 | K0–K7 已在测试环境，待验收 | 原型 https://claude.ai/artifact/PGnWsjHhu38KJseEfEMNWG |
diff --git a/frontend/tests/rectification-confirmation-gate.test.ts b/frontend/tests/rectification-confirmation-gate.test.ts
index fabe4978..44e3aa69 100644
--- a/frontend/tests/rectification-confirmation-gate.test.ts
+++ b/frontend/tests/rectification-confirmation-gate.test.ts
@@ -114,8 +114,11 @@ const diagnosticReport = JSON.parse(readFileSync(
 // 原值(11)：docs/research/sealed_holdout_rerun_upstream_sync8_2026_10_18.json
 // 新值(11)：docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json
 // 原因(11)：sync9b（BUG-1494～1495）改了冻结身份里的 scripts/varga.py，输出不变，ERR-110 另存新记录。确认门行为与阈值不变。
+// 原值(12)：docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json
+// 新值(12)：docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json
+// 原因(12)：BUG-1500 修正生产 D60 映射（scripts/varga.py），输出不变，ERR-110 另存新记录。确认门行为与阈值不变。
 const currentTreeRerun = JSON.parse(readFileSync(
-  new URL("../../docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json", import.meta.url),
+  new URL("../../docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json", import.meta.url),
   "utf8",
 )) as {
   frozen_record: { implementation_sha256: string };
@@ -264,9 +267,10 @@ test("sealed holdout aggregates match the v3 report and still block confirmation
   // 原值(8)：…ephemeris_nutation_2026_10_08.json / 新值(8)：…scoring_perf_2026_10_13.json / 原因(8)：BUG-1323～1325 改了冻结身份文件，输出不变，ERR-110 另存新记录。
   // 原值(9)：…scoring_perf_2026_10_13.json / 新值(9)：…upstream_sync8_2026_10_18.json / 原因(9)：sync8 改了冻结身份文件，输出不变，ERR-110 另存新记录。
   // 原值(10)：…upstream_sync8_2026_10_18.json / 新值(10)：…upstream_sync9b_2026_10_28.json / 原因(10)：sync9b 改了冻结身份里的 varga.py，输出不变，ERR-110 另存新记录。
+  // 原值(11)：…upstream_sync9b_2026_10_28.json / 新值(11)：…d60_mapping_2026_10_29.json / 原因(11)：BUG-1500 修正 D60 映射，输出不变，ERR-110 另存新记录。
   assert.equal(
     productHoldout.current_tree_scorer.source_report,
-    "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json",
+    "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json",
   );
   assert.equal(currentTreeRerun.official_valid_independent_blind, false);
   assert.equal(productHoldout.current_tree_scorer.matches_metrics_scorer, false);
diff --git a/references/rectification_sealed_holdout.v1.json b/references/rectification_sealed_holdout.v1.json
index 57ac70a1..0041311b 100644
--- a/references/rectification_sealed_holdout.v1.json
+++ b/references/rectification_sealed_holdout.v1.json
@@ -9,7 +9,7 @@
   "dataset_path": "references/real_case_calibration/minute_rectification_holdout_v3.json",
   "report_path": "references/real_case_calibration/minute_rectification_holdout_v3_report.json",
   "source_audit_status": "corrected_known_date_errors",
-  "evaluated_on": "2026-10-28",
+  "evaluated_on": "2026-10-29",
   "evaluated_on_scope": "latest_fixed_protocol_rerun_not_historical_runtime_metrics",
   "historical_source_audit_status": "invalidated_after_replay",
   "report_status": "invalidated_after_source_audit",
@@ -24,7 +24,7 @@
     "evaluated_on": "2026-07-21"
   },
   "current_tree_scorer": {
-    "implementation_sha256": "b44505aa0034e486fcfc29c8611a9559333a97c1005f92e6a5356bd855122205",
+    "implementation_sha256": "4bb731f7b5043de0b967ccd7e852ae25a1ecdce96c2b7987c142d7878b6632b2",
     "extended_identity": {
       "historical_artifacts_manifest_sha256": "6102a26a840be207b5858b3a4c0509274468ae9071e86d308cbbac7371d6864e",
       "production_scoring_files": [
@@ -52,7 +52,7 @@
         "scripts/shadbala.py",
         "scripts/varga.py"
       ],
-      "production_scoring_sha256": "7a727418651321d1b9073588587050c4dc6292587748cf35734dd76cefb0effe",
+      "production_scoring_sha256": "fcf10cb3a5742bb7e2d98d15d69638769cd830f470373ea93745a1cab3718c9b",
       "research_files": [
         "scripts/research/reported_offset_sweep.py",
         "scripts/research/cluster_width_lib.py",
@@ -62,7 +62,7 @@
         "scripts/minute_rectification_fact_blind_eval_v4.py",
         "scripts/minute_rectification_holdout_validator.py"
       ],
-      "research_implementation_sha256": "6fa0b0c335ac0cdc25ee887d432ae2f1f6487c665aed9665ad5cc0bc6ef0283b",
+      "research_implementation_sha256": "4eb2c03b09a179dd81f912d735823dd09ec8506da2538f40d3a8e04d3ebc6c67",
       "file_sha256": {
         "scripts/active_rectification_event_engine.py": "96c537d221a84680ddaaba74e3335162c44b5bbd9a60d10e69550a2095910d98",
         "scripts/active_rectification_events.py": "03e333ccf1103caf685dfe50fe890ab1793e945037085f50ce834a4a3b232222",
@@ -90,17 +90,17 @@
         "scripts/rectification/scoring_service.py": "fa056fa30d9e6ffa4b75295fc49c793e35b26ebeca64ca843d26c8abef3050f2",
         "scripts/research/cluster_width_lib.py": "1d8f2ffa7795d62069deebb2de8e16749317037d4ed3f24a2c0092676e5cfcc6",
         "scripts/research/probe_supply_after_six.py": "098a5b4398d6f8d996917d809c2fc922ad64031d3b70660f8ef7c876aba92438",
-        "scripts/research/reported_offset_sweep.py": "8ecc381dfaa3c0e6bea058cfa44c606aabdb1086c137f16da82ee5a3bf5ccc91",
-        "scripts/research/sealed_holdout_rerun.py": "ebcdae760f2b76c81d5d0c8e2bf347cff4c81cca9074f27ae94b6734408ccd42",
+        "scripts/research/reported_offset_sweep.py": "cabc96d1f8c7ed06ef34da4e02e052f598a5e62fd71a7ccbe7b0b099247c27d0",
+        "scripts/research/sealed_holdout_rerun.py": "69a7ddddfc4a88ec5c85f400c763f8cdbb3c58c00fe9e788a72f79daba1d3bc1",
         "scripts/shadbala.py": "334dc9d8e4292f0c95d40fd4c29285aa89b9e49d4f187fb9498f4bb0ad93bdfc",
-        "scripts/varga.py": "8ff96b9fc8346ca249abff6109434b6ed57fa150e1a9854d4f73bdf317568368"
+        "scripts/varga.py": "1bca389e4f36d293a755de175163c3f39b42bab5831cb6f7828830899f9f177e"
       },
       "hash_scope": "explicit_identity_file_sets_not_a_transitive_dependency_lock"
     },
     "matches_metrics_scorer": false,
     "official_eval_implementation_hash_matches": false,
     "official_eval_trial_count": 0,
-    "source_report": "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json",
+    "source_report": "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json",
     "fixed_protocol_rerun_trial_count": 20,
     "fixed_protocol_rerun_hash_matches": true,
     "metrics": {
@@ -113,6 +113,106 @@
     }
   },
   "current_tree_fixed_protocol_rerun": {
+    "evaluated_on": "2026-10-29",
+    "report_path": "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json",
+    "freeze_record_path": "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.freeze.json",
+    "implementation_sha256": "4bb731f7b5043de0b967ccd7e852ae25a1ecdce96c2b7987c142d7878b6632b2",
+    "extended_identity": {
+      "historical_artifacts_manifest_sha256": "6102a26a840be207b5858b3a4c0509274468ae9071e86d308cbbac7371d6864e",
+      "production_scoring_files": [
+        "scripts/active_rectification_event_engine.py",
+        "scripts/active_rectification_events.py",
+        "scripts/ashtakavarga.py",
+        "scripts/dasha_analyzer.py",
+        "scripts/divisional_charts_extended.py",
+        "scripts/domain_calculation_service.py",
+        "scripts/functional_benefics.py",
+        "scripts/jaimini.py",
+        "scripts/minute_rectification_fact_ranker_v4.py",
+        "scripts/minute_rectification_feature_facts_v4.py",
+        "scripts/narayana_dasha.py",
+        "scripts/rectification/api_service.py",
+        "scripts/rectification/candidate_contrast.py",
+        "scripts/rectification/candidate_window.py",
+        "scripts/rectification/case_holdout.py",
+        "scripts/rectification/contracts.py",
+        "scripts/rectification/dasha_transition_proximity.py",
+        "scripts/rectification/decision_policy.py",
+        "scripts/rectification/event_probes.py",
+        "scripts/rectification/refinement_packet.py",
+        "scripts/rectification/scoring_service.py",
+        "scripts/shadbala.py",
+        "scripts/varga.py"
+      ],
+      "production_scoring_sha256": "fcf10cb3a5742bb7e2d98d15d69638769cd830f470373ea93745a1cab3718c9b",
+      "research_files": [
+        "scripts/research/reported_offset_sweep.py",
+        "scripts/research/cluster_width_lib.py",
+        "scripts/research/probe_supply_after_six.py",
+        "scripts/research/sealed_holdout_rerun.py",
+        "scripts/minute_rectification_blind_eval.py",
+        "scripts/minute_rectification_fact_blind_eval_v4.py",
+        "scripts/minute_rectification_holdout_validator.py"
+      ],
+      "research_implementation_sha256": "4eb2c03b09a179dd81f912d735823dd09ec8506da2538f40d3a8e04d3ebc6c67",
+      "file_sha256": {
+        "scripts/active_rectification_event_engine.py": "96c537d221a84680ddaaba74e3335162c44b5bbd9a60d10e69550a2095910d98",
+        "scripts/active_rectification_events.py": "03e333ccf1103caf685dfe50fe890ab1793e945037085f50ce834a4a3b232222",
+        "scripts/ashtakavarga.py": "c524da3f54b2ed9c080b78b33854854a0ca3d5d79b7e536bb1c3bc2be3e02852",
+        "scripts/dasha_analyzer.py": "3949b96813217fe624899856afec9f0b787c4cb0fea3a9a0d961990dbd11943a",
+        "scripts/divisional_charts_extended.py": "e9820e80f14fddc86ab5495d11455d16c2d3c9502a9a242fcf9efc41186e0d11",
+        "scripts/domain_calculation_service.py": "66923a2bc69daf65c965d2973c4b9234edbec5147909eaf3609b6b377ce3c7ca",
+        "scripts/functional_benefics.py": "cbaac3b8c09b97f8724b5300e9a402cbf77089af6c7db8788550d40fd35ac57b",
+        "scripts/jaimini.py": "6b88658da5404da9b136686d92a04be462d61a39da6e8de4255021e2ed2d1173",
+        "scripts/minute_rectification_blind_eval.py": "07aa30d8bad3278669495d5fea8be937aaf6367c8af980ff4f2fe9aa84ccc6ff",
+        "scripts/minute_rectification_fact_blind_eval_v4.py": "bdf460e3467208e8b87345c5beb2128f3e22de7eeffd68f72b281b3ad9affc92",
+        "scripts/minute_rectification_fact_ranker_v4.py": "f1a0d8d2482cd754d2e7f253a9606b0373519435a2bf58cfc3753e2b9ae0fb76",
+        "scripts/minute_rectification_feature_facts_v4.py": "3d899a2cdd4825b8e32062443d487edcd2173a4ea55a36eb9f3abe587c0faf0f",
+        "scripts/minute_rectification_holdout_validator.py": "b60b1c752e58672beaee8b36eb3b2348169726cda070ec969db0f13e7ed715af",
+        "scripts/narayana_dasha.py": "bc667c30c9562fb73fb0b7b4c22a5e377f9a531795141fc629b2cd3cf396773a",
+        "scripts/rectification/api_service.py": "089730097d3872a4f7b5d7dd5574bb7e9ab4d2e246d4a380800bc824d7979b95",
+        "scripts/rectification/candidate_contrast.py": "eee7da71c0574a08876404b78ca111153fa95fb83ace82b9fdca141d1992e273",
+        "scripts/rectification/candidate_window.py": "2fbc5058b12049b15fca375cdc125b8283e19f9f3e4bedcc291e344501891bef",
+        "scripts/rectification/case_holdout.py": "fe0e699b617d9e216acdfeff87af4221c1d6f4c101bf33e1dbf14e2bcd75a8b5",
+        "scripts/rectification/contracts.py": "c6dc6bd230e38f9f2126c224aae9ddbd6415304c15340f8c7cd3f06f6ef3160f",
+        "scripts/rectification/dasha_transition_proximity.py": "5ce4ed27b0f06c681abc34e5fd998fafb10c153a0070aa36c99ddfa869a2cbf2",
+        "scripts/rectification/decision_policy.py": "80e8de4680d19a052213bb821d2a9c94143a2962235aeb27f6ad81374d2e60d5",
+        "scripts/rectification/event_probes.py": "f5ca9d54501f67a1546fcf5b01da0c1277dec2e2c6df481884e8900d14909a7c",
+        "scripts/rectification/refinement_packet.py": "dbeea5aa780889785ce850f3881e8b7f67bb44594e9bc382c65b2e730884a2f4",
+        "scripts/rectification/scoring_service.py": "fa056fa30d9e6ffa4b75295fc49c793e35b26ebeca64ca843d26c8abef3050f2",
+        "scripts/research/cluster_width_lib.py": "1d8f2ffa7795d62069deebb2de8e16749317037d4ed3f24a2c0092676e5cfcc6",
+        "scripts/research/probe_supply_after_six.py": "098a5b4398d6f8d996917d809c2fc922ad64031d3b70660f8ef7c876aba92438",
+        "scripts/research/reported_offset_sweep.py": "cabc96d1f8c7ed06ef34da4e02e052f598a5e62fd71a7ccbe7b0b099247c27d0",
+        "scripts/research/sealed_holdout_rerun.py": "69a7ddddfc4a88ec5c85f400c763f8cdbb3c58c00fe9e788a72f79daba1d3bc1",
+        "scripts/shadbala.py": "334dc9d8e4292f0c95d40fd4c29285aa89b9e49d4f187fb9498f4bb0ad93bdfc",
+        "scripts/varga.py": "1bca389e4f36d293a755de175163c3f39b42bab5831cb6f7828830899f9f177e"
+      },
+      "hash_scope": "explicit_identity_file_sets_not_a_transitive_dependency_lock"
+    },
+    "scorer_frozen_before_rerun": true,
+    "source_audit_status": "corrected_known_date_errors",
+    "trial_count": 20,
+    "official_valid_independent_blind": false,
+    "is_blind_evaluation": false,
+    "truth_hidden_from_ranker": true,
+    "results_previously_seen": true,
+    "must_not_claim_as_release_metrics": true,
+    "must_not_use_for_tuning": true,
+    "verified_minute_claim_allowed": false,
+    "metric_gates_passed": false,
+    "events_per_case": 3,
+    "boundary": "Previously exposed v3 shadow fixed-protocol rerun after the D60 mapping fix (ERR-110, BUG-1500). Trials and metrics match the 2026-10-18 upstream sync8 and the upstream_sync9b reports. Versus the 2026-09-20 historical report, changed_trial_count stays 8. Not a release metric. Prior reports and freezes preserved byte-for-byte.",
+    "report_sha256": "9e667c4e5819674e82519bfe9415d49a202515c765ea99609a9dd27feb69c77d",
+    "freeze_record_sha256": "8f300876eca9aac683879f1b26204be885c03b2c7b6d03e5930386852cbe4700",
+    "replay_started_at_utc": "2026-10-29T06:07:59.312582+00:00",
+    "replay_finished_at_utc": "2026-10-29T06:08:15.756678+00:00",
+    "previous_fixed_protocol_rerun": {
+      "report_path": "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json",
+      "freeze_record_path": "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.freeze.json",
+      "superseded_reason": "The D60 mapping fix (BUG-1500) changed scripts/varga.py, which is part of the extended identity. Output is unchanged, so ERR-110 stored a new record. Prior upstream_sync9b report and freeze preserved byte-for-byte."
+    }
+  },
+  "previous_fixed_protocol_rerun": {
     "evaluated_on": "2026-10-28",
     "report_path": "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json",
     "freeze_record_path": "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.freeze.json",
@@ -212,106 +312,6 @@
       "superseded_reason": "Upstream sync9b (BUG-1494 to BUG-1495) changed scripts/varga.py, which is part of the extended identity. Output is unchanged, so ERR-110 stored a new record. Prior sync8 report and freeze preserved byte-for-byte."
     }
   },
-  "previous_fixed_protocol_rerun": {
-    "evaluated_on": "2026-10-18",
-    "report_path": "docs/research/sealed_holdout_rerun_upstream_sync8_2026_10_18.json",
-    "freeze_record_path": "docs/research/sealed_holdout_rerun_upstream_sync8_2026_10_18.freeze.json",
-    "implementation_sha256": "bf8981b5c41702f9b333444deee2ab7378b9e98b111240e85ea62e6aae02fda8",
-    "extended_identity": {
-      "historical_artifacts_manifest_sha256": "6102a26a840be207b5858b3a4c0509274468ae9071e86d308cbbac7371d6864e",
-      "production_scoring_files": [
-        "scripts/active_rectification_event_engine.py",
-        "scripts/active_rectification_events.py",
-        "scripts/ashtakavarga.py",
-        "scripts/dasha_analyzer.py",
-        "scripts/divisional_charts_extended.py",
-        "scripts/domain_calculation_service.py",
-        "scripts/functional_benefics.py",
-        "scripts/jaimini.py",
-        "scripts/minute_rectification_fact_ranker_v4.py",
-        "scripts/minute_rectification_feature_facts_v4.py",
-        "scripts/narayana_dasha.py",
-        "scripts/rectification/api_service.py",
-        "scripts/rectification/candidate_contrast.py",
-        "scripts/rectification/candidate_window.py",
-        "scripts/rectification/case_holdout.py",
-        "scripts/rectification/contracts.py",
-        "scripts/rectification/dasha_transition_proximity.py",
-        "scripts/rectification/decision_policy.py",
-        "scripts/rectification/event_probes.py",
-        "scripts/rectification/refinement_packet.py",
-        "scripts/rectification/scoring_service.py",
-        "scripts/shadbala.py",
-        "scripts/varga.py"
-      ],
-      "production_scoring_sha256": "c2c23bcbde5de58e519ae1d6545620edd0f738ce8dc2e872e659b598137a728f",
-      "research_files": [
-        "scripts/research/reported_offset_sweep.py",
-        "scripts/research/cluster_width_lib.py",
-        "scripts/research/probe_supply_after_six.py",
-        "scripts/research/sealed_holdout_rerun.py",
-        "scripts/minute_rectification_blind_eval.py",
-        "scripts/minute_rectification_fact_blind_eval_v4.py",
-        "scripts/minute_rectification_holdout_validator.py"
-      ],
-      "research_implementation_sha256": "9df579bdacd7dec43abd92c9abc1831771feb800fc29e6864dc315d083d52a03",
-      "file_sha256": {
-        "scripts/active_rectification_event_engine.py": "96c537d221a84680ddaaba74e3335162c44b5bbd9a60d10e69550a2095910d98",
-        "scripts/active_rectification_events.py": "03e333ccf1103caf685dfe50fe890ab1793e945037085f50ce834a4a3b232222",
-        "scripts/ashtakavarga.py": "c524da3f54b2ed9c080b78b33854854a0ca3d5d79b7e536bb1c3bc2be3e02852",
-        "scripts/dasha_analyzer.py": "3949b96813217fe624899856afec9f0b787c4cb0fea3a9a0d961990dbd11943a",
-        "scripts/divisional_charts_extended.py": "e9820e80f14fddc86ab5495d11455d16c2d3c9502a9a242fcf9efc41186e0d11",
-        "scripts/domain_calculation_service.py": "66923a2bc69daf65c965d2973c4b9234edbec5147909eaf3609b6b377ce3c7ca",
-        "scripts/functional_benefics.py": "cbaac3b8c09b97f8724b5300e9a402cbf77089af6c7db8788550d40fd35ac57b",
-        "scripts/jaimini.py": "6b88658da5404da9b136686d92a04be462d61a39da6e8de4255021e2ed2d1173",
-        "scripts/minute_rectification_blind_eval.py": "07aa30d8bad3278669495d5fea8be937aaf6367c8af980ff4f2fe9aa84ccc6ff",
-        "scripts/minute_rectification_fact_blind_eval_v4.py": "bdf460e3467208e8b87345c5beb2128f3e22de7eeffd68f72b281b3ad9affc92",
-        "scripts/minute_rectification_fact_ranker_v4.py": "f1a0d8d2482cd754d2e7f253a9606b0373519435a2bf58cfc3753e2b9ae0fb76",
-        "scripts/minute_rectification_feature_facts_v4.py": "3d899a2cdd4825b8e32062443d487edcd2173a4ea55a36eb9f3abe587c0faf0f",
-        "scripts/minute_rectification_holdout_validator.py": "b60b1c752e58672beaee8b36eb3b2348169726cda070ec969db0f13e7ed715af",
-        "scripts/narayana_dasha.py": "bc667c30c9562fb73fb0b7b4c22a5e377f9a531795141fc629b2cd3cf396773a",
-        "scripts/rectification/api_service.py": "089730097d3872a4f7b5d7dd5574bb7e9ab4d2e246d4a380800bc824d7979b95",
-        "scripts/rectification/candidate_contrast.py": "eee7da71c0574a08876404b78ca111153fa95fb83ace82b9fdca141d1992e273",
-        "scripts/rectification/candidate_window.py": "2fbc5058b12049b15fca375cdc125b8283e19f9f3e4bedcc291e344501891bef",
-        "scripts/rectification/case_holdout.py": "fe0e699b617d9e216acdfeff87af4221c1d6f4c101bf33e1dbf14e2bcd75a8b5",
-        "scripts/rectification/contracts.py": "c6dc6bd230e38f9f2126c224aae9ddbd6415304c15340f8c7cd3f06f6ef3160f",
-        "scripts/rectification/dasha_transition_proximity.py": "5ce4ed27b0f06c681abc34e5fd998fafb10c153a0070aa36c99ddfa869a2cbf2",
-        "scripts/rectification/decision_policy.py": "80e8de4680d19a052213bb821d2a9c94143a2962235aeb27f6ad81374d2e60d5",
-        "scripts/rectification/event_probes.py": "f5ca9d54501f67a1546fcf5b01da0c1277dec2e2c6df481884e8900d14909a7c",
-        "scripts/rectification/refinement_packet.py": "dbeea5aa780889785ce850f3881e8b7f67bb44594e9bc382c65b2e730884a2f4",
-        "scripts/rectification/scoring_service.py": "fa056fa30d9e6ffa4b75295fc49c793e35b26ebeca64ca843d26c8abef3050f2",
-        "scripts/research/cluster_width_lib.py": "1d8f2ffa7795d62069deebb2de8e16749317037d4ed3f24a2c0092676e5cfcc6",
-        "scripts/research/probe_supply_after_six.py": "098a5b4398d6f8d996917d809c2fc922ad64031d3b70660f8ef7c876aba92438",
-        "scripts/research/reported_offset_sweep.py": "e10537ca2caba3a4e6a8d2460265543b0cca55935afa8004108e45bef4bc3de7",
-        "scripts/research/sealed_holdout_rerun.py": "7945353014b93b6d7641f278779111d85b1773293781343b802a9b4b655ca4b5",
-        "scripts/shadbala.py": "334dc9d8e4292f0c95d40fd4c29285aa89b9e49d4f187fb9498f4bb0ad93bdfc",
-        "scripts/varga.py": "c1f06967c3d4d214edadff139c24aa31e59fb628477174235abe14f799a99076"
-      },
-      "hash_scope": "explicit_identity_file_sets_not_a_transitive_dependency_lock"
-    },
-    "scorer_frozen_before_rerun": true,
-    "source_audit_status": "corrected_known_date_errors",
-    "trial_count": 20,
-    "official_valid_independent_blind": false,
-    "is_blind_evaluation": false,
-    "truth_hidden_from_ranker": true,
-    "results_previously_seen": true,
-    "must_not_claim_as_release_metrics": true,
-    "must_not_use_for_tuning": true,
-    "verified_minute_claim_allowed": false,
-    "metric_gates_passed": false,
-    "events_per_case": 3,
-    "boundary": "Previously exposed v3 shadow fixed-protocol rerun after upstream sync8 (ERR-110, BUG-1380 to BUG-1390). Trials and metrics match the 2026-10-13 scoring_perf report. Versus the 2026-09-20 historical report, changed_trial_count stays 8. Not a release metric. Prior scoring_perf report and freeze preserved byte-for-byte.",
-    "report_sha256": "4573440f00138563122dd3aa12f4ca66517f2b4aad5a2db9373a87eeb8997ce4",
-    "freeze_record_sha256": "493b4199df86c1d8782ae1016b2509d7602758d6fdb4e2c492207eb1af38eac0",
-    "replay_started_at_utc": "2026-10-18T10:46:24.464749+00:00",
-    "replay_finished_at_utc": "2026-10-18T10:46:26.772898+00:00",
-    "previous_fixed_protocol_rerun": {
-      "report_path": "docs/research/sealed_holdout_rerun_scoring_perf_2026_10_13.json",
-      "freeze_record_path": "docs/research/sealed_holdout_rerun_scoring_perf_2026_10_13.freeze.json",
-      "superseded_reason": "Upstream sync8 (BUG-1380 to BUG-1390) changed frozen identity files. Output is unchanged, so ERR-110 stored a new record. Prior scoring_perf report and freeze preserved byte-for-byte."
-    }
-  },
   "current_tree_unfrozen_diagnostic": {
     "is_blind_evaluation": false,
     "results_already_seen": true,
@@ -330,6 +330,28 @@
     "verified_minute_claim_allowed": false
   },
   "current_tree_reported_offset_replay": {
+    "report_path": "docs/research/reported_offset_d60_mapping_2026_10_29.json",
+    "report_sha256": "f40157139733552dbefdfc999f95458de75594cd511df0e5377d606e27559f0d",
+    "freeze_record_path": "docs/research/reported_offset_d60_mapping_2026_10_29.freeze.json",
+    "freeze_record_sha256": "20e7684bc6c7356a421c2c20517c153279561f810cd15d77f260c9915352aed9",
+    "scope": "reported_offset_sensitivity_not_product_accuracy",
+    "trial_count": 900,
+    "official_valid_independent_blind": false,
+    "official_blind_trial_count": 0,
+    "must_not_use_for_tuning": true,
+    "must_not_claim_as_release_metrics": true,
+    "replay_started_at_utc": "2026-10-29T06:08:17.701243+00:00",
+    "replay_finished_at_utc": "2026-10-29T06:29:23.437778+00:00",
+    "boundary": "Previously exposed reported-offset sensitivity after the D60 mapping fix (ERR-110, BUG-1500). Summary and trials match the 2026-10-18 upstream sync8 and the upstream_sync9b reports. Versus the 2026-09-20 historical report, changed_trial_count stays 581 of 900. Not a release metric. No tuning. Prior reports and freezes preserved byte-for-byte.",
+    "previous_reported_offset_replay": {
+      "report_path": "docs/research/reported_offset_upstream_sync9b_2026_10_28.json",
+      "report_sha256": "880bebc2e217100994a1442e47ead3f9d33e48aa3ac20f69d993f38def3ef25c",
+      "freeze_record_path": "docs/research/reported_offset_upstream_sync9b_2026_10_28.freeze.json",
+      "freeze_record_sha256": "385817bb27f04afeba230af5e547dd10dc8cf6db4b25c18bebe4f4e674cab972",
+      "superseded_reason": "The D60 mapping fix (BUG-1500) changed scripts/varga.py, which is part of the extended identity. Output is unchanged, so ERR-110 stored a new record. Prior upstream_sync9b report and freeze preserved byte-for-byte."
+    }
+  },
+  "previous_reported_offset_replay": {
     "report_path": "docs/research/reported_offset_upstream_sync9b_2026_10_28.json",
     "report_sha256": "880bebc2e217100994a1442e47ead3f9d33e48aa3ac20f69d993f38def3ef25c",
     "freeze_record_path": "docs/research/reported_offset_upstream_sync9b_2026_10_28.freeze.json",
@@ -350,27 +372,5 @@
       "freeze_record_sha256": "117ab0bfa4a283e9d52073808f71dd8317f613c96b27ec271d887ef40087f4f5",
       "superseded_reason": "Upstream sync9b (BUG-1494 to BUG-1495) changed scripts/varga.py, which is part of the extended identity. Output is unchanged, so ERR-110 stored a new record. Prior sync8 report and freeze preserved byte-for-byte."
     }
-  },
-  "previous_reported_offset_replay": {
-    "report_path": "docs/research/reported_offset_upstream_sync8_2026_10_18.json",
-    "report_sha256": "a51aad2e743dccba7726d1a0a5e44c5e431ff429fe1725c9be2f7fa5e9282da6",
-    "freeze_record_path": "docs/research/reported_offset_upstream_sync8_2026_10_18.freeze.json",
-    "freeze_record_sha256": "117ab0bfa4a283e9d52073808f71dd8317f613c96b27ec271d887ef40087f4f5",
-    "scope": "reported_offset_sensitivity_not_product_accuracy",
-    "trial_count": 900,
-    "official_valid_independent_blind": false,
-    "official_blind_trial_count": 0,
-    "must_not_use_for_tuning": true,
-    "must_not_claim_as_release_metrics": true,
-    "replay_started_at_utc": "2026-10-18T10:46:27.013583+00:00",
-    "replay_finished_at_utc": "2026-10-18T10:49:10.767675+00:00",
-    "boundary": "Previously exposed reported-offset sensitivity after upstream sync8 (ERR-110, BUG-1380 to BUG-1390). Summary and trials match the 2026-10-13 scoring_perf report. Versus the 2026-09-20 historical report, changed_trial_count stays 581 of 900. Not a release metric. No tuning. Prior scoring_perf report and freeze preserved byte-for-byte.",
-    "previous_reported_offset_replay": {
-      "report_path": "docs/research/reported_offset_scoring_perf_2026_10_13.json",
-      "report_sha256": "9466cf3945a63621104157fb34291cb23205ddb045effa7e70f3c35647516443",
-      "freeze_record_path": "docs/research/reported_offset_scoring_perf_2026_10_13.freeze.json",
-      "freeze_record_sha256": "1560f24ffea19116c904272907ff9cce24904960406676f3aada3c8c174cf98a",
-      "superseded_reason": "Upstream sync8 (BUG-1380 to BUG-1390) changed frozen identity files. Output is unchanged, so ERR-110 stored a new record. Versus the 2026-09-20 historical report, changed_trial_count stays 581 of 900. Prior scoring_perf report and freeze preserved byte-for-byte."
-    }
   }
 }
diff --git a/scripts/research/d60_two_way_run.py b/scripts/research/d60_two_way_run.py
new file mode 100644
index 00000000..b299de1e
--- /dev/null
+++ b/scripts/research/d60_two_way_run.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+"""G1: compare the production D60 ascendant with an external engine (issue #149).
+
+For every case of the v5 minute-rectification holdout this prints the D60
+(rashi) sign of the ascendant from the production mapping and from PyJHora's
+traditional Parasara shashtyamsa chart. The gate in
+docs/tasks/TASK-rectification-d60-two-way-20261028.md asks for >=95% agreement
+with at least one external engine; after BUG-1500 both count from the sign
+itself and the expected result is 77/77.
+
+The output is deterministic: no timestamps, sorted keys, fixed formatting, so
+a rerun on another machine can be compared byte for byte.
+
+Usage:
+  python scripts/research/d60_two_way_run.py            # writes the results JSON
+  python scripts/research/d60_two_way_run.py --json      # prints it to stdout
+
+PyJHora is AGPL; it is imported here only, never copied into production code.
+"""
+
+from __future__ import annotations
+
+import argparse
+import hashlib
+import json
+import sys
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+if str(ROOT) not in sys.path:
+    sys.path.insert(0, str(ROOT))
+SCRIPTS = ROOT / "scripts"
+if str(SCRIPTS) not in sys.path:
+    sys.path.insert(0, str(SCRIPTS))
+
+from scripts.jyotish_engine import compute_chart_data  # noqa: E402
+
+DATASET = ROOT / "references/real_case_calibration/minute_rectification_holdout_v5.json"
+DEFAULT_OUT = ROOT / "docs/research/d60_two_way_results_2026_10_29.json"
+GATE_RATE = 0.95
+
+
+def _cases() -> list[dict]:
+    return json.loads(DATASET.read_text(encoding="utf-8"))["cases"]
+
+
+def our_d60_ascendant(case: dict) -> tuple[float, int]:
+    birth = case["birth"]
+    year, month, day = (int(part) for part in birth["date"].split("-"))
+    hour, minute = (int(part) for part in birth["time"].split(":"))
+    chart, _asc_idx, _jd, _ayanamsa = compute_chart_data(
+        year,
+        month,
+        day,
+        hour,
+        minute,
+        birth["latitude"],
+        birth["longitude"],
+        birth["timezone_offset"],
+        node_mode="mean",
+        ayanamsa_name="raman",
+    )
+    import varga
+
+    longitude = float((chart.get("ascendant") or {})["degree_raw"])
+    return longitude, int(varga.calc_varga(longitude, 60)["sign_idx"])
+
+
+def pyjhora_d60_ascendant(case: dict) -> int:
+    from jhora import utils
+    from jhora.horoscope.chart import charts
+    from jhora.panchanga import drik
+
+    birth = case["birth"]
+    year, month, day = (int(part) for part in birth["date"].split("-"))
+    hour, minute = (int(part) for part in birth["time"].split(":"))
+    drik.set_ayanamsa_mode("Raman")
+    jd = utils.julian_day_number((year, month, day), (hour, minute, 0))
+    place = drik.Place("case", birth["latitude"], birth["longitude"], birth["timezone_offset"])
+    chart = charts.divisional_chart(jd, place, divisional_chart_factor=60)
+    lagna = next(item for item in chart if str(item[0]) == "L")
+    return int(lagna[1][0])
+
+
+def run() -> dict:
+    rows = []
+    for case in _cases():
+        longitude, ours = our_d60_ascendant(case)
+        theirs = pyjhora_d60_ascendant(case)
+        rows.append(
+            {
+                "case_id": case["case_id"],
+                "ascendant_longitude": round(longitude, 6),
+                "d60_sign_idx_production": ours,
+                "d60_sign_idx_pyjhora": theirs,
+                "matches_pyjhora": ours == theirs,
+            }
+        )
+    matches = sum(row["matches_pyjhora"] for row in rows)
+    count = len(rows)
+    return {
+        "scope": "d60_gate_g1_engine_reconciliation",
+        "task": "docs/tasks/TASK-rectification-d60-two-way-20261028.md",
+        "brief": "docs/tasks/TASK-rectification-d60-fix-20261029.md",
+        "issue": 149,
+        "bug": "BUG-1500",
+        "dataset": {
+            "path": DATASET.relative_to(ROOT).as_posix(),
+            "sha256": hashlib.sha256(DATASET.read_bytes()).hexdigest(),
+            "cases": count,
+        },
+        "profile": {
+            "ayanamsa": "raman",
+            "node_mode": "mean",
+            "pyjhora_ayanamsa_mode": "Raman",
+            "pyjhora_chart": "divisional_chart(divisional_chart_factor=60), traditional Parasara from sign",
+        },
+        "gate": {
+            "threshold": GATE_RATE,
+            "matches": matches,
+            "rate": round(matches / count, 4) if count else None,
+            "passed": bool(count) and matches / count >= GATE_RATE,
+        },
+        "cases": rows,
+    }
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--json", action="store_true", help="print instead of writing the default path")
+    parser.add_argument("--out", default=None)
+    args = parser.parse_args()
+    payload = run()
+    text = json.dumps(payload, ensure_ascii=False, indent=2, sort_keys=True) + "\n"
+    if args.json:
+        print(text, end="")
+        return 0
+    out = Path(args.out) if args.out else DEFAULT_OUT
+    out.write_text(text, encoding="utf-8", newline="\n")
+    print(out.relative_to(ROOT).as_posix())
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/scripts/research/reported_offset_sweep.py b/scripts/research/reported_offset_sweep.py
index 2237ab49..bfa84722 100644
--- a/scripts/research/reported_offset_sweep.py
+++ b/scripts/research/reported_offset_sweep.py
@@ -33,8 +33,11 @@ MINUTE_STEP = 1
 # 原值: docs/research/reported_offset_upstream_sync8_2026_10_18.{freeze.json,json}
 # 新值: docs/research/reported_offset_upstream_sync9b_2026_10_28.{freeze.json,json}
 # 原因: sync9b（BUG-1494～1495）改了 scripts/varga.py，它在扩展身份里；报时窗口输出不变，ERR-110 另存新记录
-FREEZE = ROOT / "docs/research/reported_offset_upstream_sync9b_2026_10_28.freeze.json"
-REPORT = ROOT / "docs/research/reported_offset_upstream_sync9b_2026_10_28.json"
+# 原值: docs/research/reported_offset_upstream_sync9b_2026_10_28.{freeze.json,json}
+# 新值: docs/research/reported_offset_d60_mapping_2026_10_29.{freeze.json,json}
+# 原因: BUG-1500 修正生产 D60 映射，scripts/varga.py 变了（在扩展身份里）；900 条回放不变，ERR-110 另存新记录
+FREEZE = ROOT / "docs/research/reported_offset_d60_mapping_2026_10_29.freeze.json"
+REPORT = ROOT / "docs/research/reported_offset_d60_mapping_2026_10_29.json"
 LEGACY_REPORT = ROOT / "docs/research/reported_offset_2026_09_20.json"
 
 
diff --git a/scripts/research/sealed_holdout_rerun.py b/scripts/research/sealed_holdout_rerun.py
index 7ce2fdbd..fe62e9cf 100644
--- a/scripts/research/sealed_holdout_rerun.py
+++ b/scripts/research/sealed_holdout_rerun.py
@@ -30,8 +30,11 @@ DATASET = ROOT / "references/real_case_calibration/minute_rectification_holdout_
 # 原值: docs/research/sealed_holdout_rerun_upstream_sync8_2026_10_18.{freeze.json,json}
 # 新值: docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.{freeze.json,json}
 # 原因: sync9b（BUG-1494～1495）改了 scripts/varga.py，它在扩展身份里；切盘输出不变，ERR-110 另存新记录
-FREEZE = ROOT / "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.freeze.json"
-REPORT = ROOT / "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.json"
+# 原值: docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28.{freeze.json,json}
+# 新值: docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.{freeze.json,json}
+# 原因: BUG-1500 修正生产 D60 映射，scripts/varga.py 变了（在扩展身份里）；20 条回放不变，ERR-110 另存新记录
+FREEZE = ROOT / "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.freeze.json"
+REPORT = ROOT / "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29.json"
 LEGACY_REPORT = ROOT / "docs/research/sealed_holdout_rerun_2026_09_20.json"
 ARCHIVE = ROOT / "docs/research/history/rectification_pre_cross_midnight_2026_09_20"
 PRODUCTION_FILES = [
diff --git a/scripts/varga.py b/scripts/varga.py
index f0b68caa..0c5261e6 100644
--- a/scripts/varga.py
+++ b/scripts/varga.py
@@ -90,7 +90,9 @@ def varga_map(si, pi, div):
     if div==30: return _d30_map(si,pi)
     if div==40: return ((0 if o else 6)+pi)%12
     if div==45: return ((0 if o else 6)+pi)%12
-    if div==60: return (si+pi)%12 if o else (si+1+pi)%12
+    # D60 Shashtyamsa: every sign counts from itself (references/shodasavarga-complete-guide.md;
+    # PyJHora traditional Parasara "from sign" agrees 77/77 on the v5 recorded times, BUG-1500).
+    if div==60: return (si+pi)%12
     if div==81:
         outer_part = pi // 9
         inner_part = pi % 9
diff --git a/tests/test_d60_two_way_research.py b/tests/test_d60_two_way_research.py
new file mode 100644
index 00000000..3e9d0f46
--- /dev/null
+++ b/tests/test_d60_two_way_research.py
@@ -0,0 +1,24 @@
+"""G1 contract for the D60 two-way study (issue #149, BUG-1500).
+
+The gate compares the production D60 ascendant with PyJHora for every v5 case.
+It must agree on all of them now that both count from the sign itself; the
+payload must stay free of recorded birth times so it can be published.
+"""
+
+from __future__ import annotations
+
+import pytest
+
+
+def test_g1_agrees_with_pyjhora_on_every_v5_case() -> None:
+    pytest.importorskip("jhora.horoscope.chart.charts")
+    from scripts.research.d60_two_way_run import run
+
+    payload = run()
+    assert payload["dataset"]["cases"] == 77
+    assert payload["gate"]["matches"] == 77
+    assert payload["gate"]["passed"] is True
+    for row in payload["cases"]:
+        assert row["matches_pyjhora"] is True
+        assert "true_minute" not in row
+        assert "birth_time" not in row
diff --git a/tests/test_d60_varga_mapping.py b/tests/test_d60_varga_mapping.py
new file mode 100644
index 00000000..f8a1cde5
--- /dev/null
+++ b/tests/test_d60_varga_mapping.py
@@ -0,0 +1,36 @@
+"""D60 Shashtyamsa counts from the sign itself for every sign (BUG-1500).
+
+The production mapping used to add one sign for 1-based even signs, which put
+the same ascendant one D60 sign away from PyJHora on 44 of 77 recorded times.
+The guide (references/shodasavarga-complete-guide.md) and PyJHora both count
+from the sign itself, odd and even alike.
+"""
+
+from __future__ import annotations
+
+import pytest
+
+from scripts.varga import calc_varga
+
+
+def test_d60_first_part_starts_in_its_own_sign() -> None:
+    for sign in range(12):
+        for part in range(60):
+            longitude = sign * 30 + part * 0.5 + 0.25
+            assert calc_varga(longitude, 60)["sign_idx"] == (sign + part) % 12, (sign, part)
+
+
+@pytest.mark.parametrize("sign", [1, 3, 5, 7, 9, 11])
+def test_d60_even_signs_first_part_is_the_same_sign(sign: int) -> None:
+    # 1-based even signs: Taurus, Cancer, Virgo, Scorpio, Capricorn, Pisces.
+    result = calc_varga(sign * 30 + 0.25, 60)
+    assert result["sign_idx"] == sign
+
+
+def test_d60_matches_pyjhora_shashtyamsa_for_all_signs_and_parts() -> None:
+    charts = pytest.importorskip("jhora.horoscope.chart.charts")
+    for sign in range(12):
+        for part in range(60):
+            degree = part * 0.5 + 0.25
+            their = int(charts.shashtyamsa_chart([["L", [sign, degree]]])[0][1][0])
+            assert calc_varga(sign * 30 + degree, 60)["sign_idx"] == their, (sign, part)
diff --git a/tests/test_sealed_holdout_contract_freshness.py b/tests/test_sealed_holdout_contract_freshness.py
index f4805133..8d5d1ccd 100644
--- a/tests/test_sealed_holdout_contract_freshness.py
+++ b/tests/test_sealed_holdout_contract_freshness.py
@@ -58,6 +58,11 @@ IDENTITY_FORBIDDEN_PREFIXES = (
     # 原因: sync9b 改了扩展身份里的 scripts/varga.py，回放输出不变，ERR-110 另存新记录
     "docs/research/sealed_holdout_rerun_upstream_sync9b_2026_10_28",
     "docs/research/reported_offset_upstream_sync9b_2026_10_28",
+    # 原值: 排除到 upstream_sync9b_2026_10_28
+    # 新值: 再排除 d60_mapping_2026_10_29 两份冻结路径（追加，不替换上面的）
+    # 原因: BUG-1500 修正生产 D60 映射，varga.py 变了，回放输出不变，ERR-110 另存新记录
+    "docs/research/sealed_holdout_rerun_d60_mapping_2026_10_29",
+    "docs/research/reported_offset_d60_mapping_2026_10_29",
     "docs/research/history/",
     "artifacts/",
 )