diff --git a/dist/evidence.js b/dist/evidence.js
new file mode 100644
index 0000000..3be7ddc
--- /dev/null
+++ b/dist/evidence.js
@@ -0,0 +1,14 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.evidenceState = evidenceState;
+function evidenceState(result, reviewDate) {
+    if (result.status === 'not-run')
+        return '未执行';
+    if (result.status === 'failed')
+        return '验证失败';
+    if (!/^\d{4}-\d{2}-\d{2}$/.test(result.evidenceUntil))
+        return '证据日期无效';
+    if (result.evidenceUntil < reviewDate)
+        return '证据过期';
+    return null;
+}