diff --git a/docs/HUYA_HDID_ALGORITHM_GEN.md b/docs/HUYA_HDID_ALGORITHM_GEN.md
index 36bbc72..f7c6ec0 100644
--- a/docs/HUYA_HDID_ALGORITHM_GEN.md
+++ b/docs/HUYA_HDID_ALGORITHM_GEN.md
@@ -478,3 +478,29 @@ mid = LiveUserbase→tUAEx→t5=sMId (16hex)，**可任意铸造** → doLaunch
 1. libhydeviceid 内定位 32hex-hdid 生成函数 (unidbg 枚举 32hex 返回的导出/偏移)
 2. 若存在: 输入=?(androidId/config/MID 模型已有) → 铸币设备独立 hdid → 登录
 3. 若不存在: 登录 hdid = 设备级私钥证书, 纯代码不可达 → 每账号独立设备需真机/模拟器池
+
+## §11.12 Java 侧 HDID32 链全映射 + 签名锚定实验 (2026-08-28 夜)
+
+### Java 调用链 (jadx classes5.dex 实证)
+```
+HuyaAuth.initSDID()                        (com/huyaudbunify/HuyaAuth.java:1261)
+  ├─ sdid = dj3.getSDID()  → HyDeviceProxy.g() → NativeEntry.getSDID()  ← ACTION(注册链t2)
+  └─ hdid = dj3.getHDID()  → HyDeviceProxy.e() → NativeEntry.getHDID()  ← native getHDID@0x20f0c8
+       (setSafeDeviceId(sdid, hdid)  → WUP 帧绑定)
+NativeBridge.b(i) 语义全表 (b→fj3.c):
+  1=APPID(5008)  2=versionName(13.4.22)  3=SDK版本(1.14.68)  5=安装时间json
+  100=GUID      101/102=MID(ANDROID_ID)  104/105=空    106=64hex
+  107=qimei16   108=qimei36   300/303/304=...
+```
+- 登录帧 t1.t0(HDID32) 的 JAVA 源头 = NativeEntry.getHDID() (registerNative@0x20f0c8)。
+- unidbg 收集器 b(3)=SDK版本 已补桩 (此前 null 导致收集不完整), 但 getter 仍读缓存
+  (GUID/HDID 均为缓存读, 缓存由 JAVA 侧 doLaunch/注册链回填) —— 下步: 仿真 JAVA 回填序。
+
+### 签名锚定实验 (金样本账号, 逐变量)
+| 变量 | hdid(t1.t0) | device_id(t2.t8) | 结果 |
+|---|---|---|---|
+| 全金样本 | ed0db8334cadd236c00cadf7e11ab5a5 | 7c5387e0…(40hex) | ✅ 1571B cred |
+| 换 device_id | ed0db8… | **deadbeef…(随机40hex)** | ✅ **1571B cred** |
+| 换 hdid | **0a7dfa…(手机当前GUID32)** | 7c5387e0… | ❌ APP_SIGN_NOT_MATCH |
+| 换 hdid | **0a7d91…(铸币sGuid)** | 7c5387e0… | ❌ APP_SIGN_NOT_MATCH |
+**定论: 登录 APP_SIGN 唯一锚 = HDID32(t1.t0); DEVID40 自由; GUID32(铸币)≠登录证书体系。**
diff --git a/evidence/mint/login_pair_golden_hdid_control.bin b/evidence/mint/login_pair_golden_hdid_control.bin
new file mode 100644
index 0000000..96d1941
Binary files /dev/null and b/evidence/mint/login_pair_golden_hdid_control.bin differ
diff --git a/tools/unidbg/hydev/src/hydev/HyDeviceId.java b/tools/unidbg/hydev/src/hydev/HyDeviceId.java
index d61b386..f1412ca 100644
--- a/tools/unidbg/hydev/src/hydev/HyDeviceId.java
+++ b/tools/unidbg/hydev/src/hydev/HyDeviceId.java
@@ -140,11 +140,17 @@ public class HyDeviceId extends AbstractJni {
             System.out.println("[JNI] NativeBridge.b FALLBACK-STUB (native not registered?)");
             int i = vaList.getIntArg(0);
             // 真机实测值 (2026-08-28): 100=GUID 101= MID 102= MID 106=64hex, 99/103=null, 104/105=""
+            // b()-语义来自 jadx (NativeBridge.b -> fj3.c): 1=APPID(5008) 2=versionName 3=SDK版本(1.14.68)
+            // 102=l5h.a=ANDROID_ID 104=l5h.f 105=pnc.f 106=l5h.i 107=qimei16 108=qimei36
             String v = null;
             if (i == 100) v = "0a7dfaa882938a6ab502511452142c57";
             else if (i == 101 || i == 102) v = "1e8bdf7d4f7a01d3";
             else if (i == 106) v = "a71a0917ab6d0d6a61947a007591cfb97290f88972b047252c0ec7baddcd57df";
             else if (i == 104 || i == 105) v = "";
+            else if (i == 1) v = "5008";
+            else if (i == 2) v = "13.4.22";
+            else if (i == 3) v = "1.14.68";
+            else if (i == 107 || i == 108) v = "67453f5aef55f776967c748a10001c318101";
             System.out.println("[JNI] NativeBridge.b(" + i + ") -> " + v);
             return v == null ? null : new StringObject(vm, v);
         }